Server Developer (Product) at Toss Securities | Seoul

Join Our Team! At Toss Securities, our Server Chapter is filled with enthusiastic colleagues who are eager to collaborate and create meaningful advancements. We thrive on constructive discussions and innovative problem-solving, where every idea is valued, and constructive criticism is encouraged. We enjoy engaging in technical discussions and hold various study sessions. Whether you're new to the field or an experienced professional, you'll find opportunities to expand your knowledge and apply what you've learned in practical ways. Our active code review process ensures that you gain hands-on technical expertise. As a Server Developer at Toss Securities, you'll work across various teams, including Product Owners, Designers, Frontend Developers, and Data Analysts, in a dynamic environment similar to a startup. You'll also engage with specialized teams managing core financial data and ensuring the stability of our services. We are dedicated to developing back-office products that alleviate the inconvenience of visiting physical locations, creating a seamless experience for our users. Worried about communication with fellow developers across different teams? Don't be! Our community supports strong collaboration through code reviews, Engineering Days, and weekly Server Chapter meetings. Your Responsibilities We primarily utilize Java/Kotlin and the Spring Framework for server development. You will engage in selecting and standardizing efficient development practices and libraries. You will also focus on improving our architecture for easy deployment and maintenance, ensuring stability and performance. Working with technologies like Redis, Kafka, Kubernetes, and ELK, you'll tackle challenges related to high traffic and concurrent processing. You will be responsible for creating various aspects of the Toss Securities service, from real-time data processing to managing user account information and stock transactions. You will have ownership of your product areas and will make key technical decisions. Who We Are Looking For We seek individuals who are persistent problem solvers. You should be comfortable tackling complex challenges and delivering valuable solutions for our customers. A broad mindset is essential, as we sometimes need to take bold steps to simplify issues. We value individuals who are open to collaboration and are willing to take initiative, even when responsibilities may not be clearly defined.

Join Our Dynamic Team!The Server Developer (Product) role is part of Toss's innovative Silo team, comprising 6-8 diverse professionals, including product owners, designers, developers, and data analysts, collaborating like a startup with autonomy.As our user base grows, we have dedicated server developers ensuring stable operations. Unlike silo teams focusing on rapid experimentation, this role supports a variety of services across Toss.Your Responsibilities Include:Designing and developing the Product server used daily by countless Toss customers.Offering over 50 services since the inception of our convenient remittance service in 2015, including financial status checks, pedometers, and fortune quizzes.Utilizing trendy technologies to ensure services run smoothly while listening to user feedback to quickly and flexibly resolve issues.We Are Looking For Individuals Who:Have experience designing and operating high-availability, scalable systems.Possess a background in developing systems that handle large-scale real-time traffic.Have faced challenges and resolved issues during system failures.Are passionate about their services and approach their work with a sense of ownership.Enjoy sharing insights and ideas gained from service development and are eager for ongoing technical challenges.Services You Will Contribute To:Loans: Create services that allow users to easily compare and apply for various loans, expanding offerings such as personal loans, mortgage loans, and card loans to ensure Toss is top of mind.Marketplace: Develop essential services for users, like card benefit comparisons, investments, and auto insurance.Payments: Work on Toss's convenient payment system, TossPay, handling everything from online and offline payments to new payment method development and promotional activities.Commerce: Enhance Toss's commerce services to create value for both users and sellers, including group purchases and admin services for sellers.Benefits: Develop innovative services in the app tech space, including pedometers, live shopping, luck lotteries, and collaborative point-earning activities.Ads: Expand Toss's advertising business by reliably serving high-traffic products and developing integrations for ad networks.Home: Create services for the homepage that first engages Toss users, analyzing assets, income, and spending patterns while connecting them to relevant Toss services.

Join Toss Income, a newly established subsidiary of the Toss community, focusing on innovative financial services related to income.Toss Income aims to enhance financial experiences by addressing challenges in the tax domain, which, while not a daily financial service, is a crucial aspect of financial life.We are dedicated to alleviating the difficulties individuals face in managing their taxes through services like 'Finding Hidden Refunds.'As part of the newest branch of Toss community, you will have the opportunity to be an initial member and shape our team.The team you will join comprises self-sufficient units known as silos, which include product owners, designers, developers, and data analysts, functioning like small startups.As our user base expands, we require server developers who can ensure stable operations while supporting various services at Toss.Your responsibilities will include:Designing and developing the servers for services utilized by Toss Income customers.Ensuring the stability of Toss Income services while swiftly addressing issues based on customer feedback.We are looking for individuals who:Have experience designing and operating high-availability, scalable systems.Possess a background in developing systems capable of handling large-scale real-time traffic.Have encountered and resolved system failures.Take pride in their work and approach it with a sense of ownership.Are eager to share insights and ideas gained from service development and continuously seek technical challenges.We recommend structuring your resume to highlight:Your experience in developing systems capable of handling high traffic quickly and reliably.Specific improvements you've made based on problems you've identified, detailing the technology stack used.Participation in the initial stages of service development.Experience in developing B2C services based on the Spring Framework.Technologies used at Toss Income include:Kotlin, Java, GradleNetty, Spring MVC, Spring Webflux, Spring Boot, Spring Cloud Gateway, Spring Cloud ConfigJPA/Hibernate, MySQL, MongoDB, Hadoop, Redis, Memcached, etc.

Join our dynamic team at Toss Payments as a TCP Server Developer. We are looking for a skilled developer who is passionate about building high-performance server applications. You will be working with cutting-edge technologies to ensure seamless communication across our platforms.

Join Our Team!As a Node.js Developer at Toss Securities, you will be part of the Automation Platform Team.The Automation Platform Team is dedicated to creating and managing customer-facing services that provide a unique experience for users of Toss Securities, along with internal services that support these offerings.Your role will involve designing and implementing a range of automation platforms that help employees and customers shift their focus from repetitive tasks to more valuable work. What You Will Do:Develop Node.js-based applications that operate in diverse environments, including server and client-side applications.Write libraries and test code to create stable and observable services. We Are Looking For:A candidate with a deep understanding of Node.js, TypeScript, and Nest.js, or someone with ample practical experience in other server-side environments (like Spring) who is ready to transition to the Node.js ecosystem.Experience in designing and operating distributed applications, with the ability to define and resolve issues related to concurrency, atomicity, and parallel processing.Familiarity with log collection and monitoring for stable service operations.Ability to write flexible, readable, and maintainable code.Skills in identifying repetitive or inefficient processes and proposing better alternatives. Resume Tips:Describe challenges encountered during projects and how you solved them.Summarize your thoughts on good coding or design philosophy. Technologies Used at Toss Securities:Typescript, NestJS, pnpm, VitestELK Stack, ZooKeeper, Redis, Kafka

Join Our Innovative TeamAs a Product Owner at Toss Securities, you will become part of a dedicated product organization known as a 'silo'. This agile team comprises 6-8 professionals, including fellow POs, developers, product designers, and data analysts, all working together with the autonomy of a small startup, making independent decisions regarding product development.In your role, you will connect user needs with Toss Securities' business strategy, creating accessible investment services that enhance customer experiences.Your responsibilities will span the entire product lifecycle, from defining key metrics and designing business models to driving action items and achieving tangible results.You will establish valid hypotheses, validate them through experimentation, and leverage data insights to refine the product, ensuring a strong Product-Market Fit.As a leader, you will set goals and strategies for business direction, revenue, and profits, engaging in thorough discussions with your silo team to determine the best course of action.This role is akin to being a CEO of a small startup—addressing challenges head-on, defining problems, and experiencing the highs and lows of entrepreneurial ventures.Your responsibilities extend beyond the launch of new financial products; you will also work on cross-activation services, create community platforms, and develop asset management services.Ideal Candidate ProfileWe prefer candidates with a profound understanding of mobile products over securities domain knowledge, as Toss Securities operates with a tech-first mentality.Experience depth may not correlate directly with years; we do not impose strict experience limits.Relevant experience in an agile environment, delivering meaningful business and product outcomes through both success and learning from failures is essential.An analytical mindset is crucial for solving diverse and complex challenges using data.Experience in defining problems from a user perspective and implementing solutions is highly valued.Founders with A to Z experience in startups, from business/product planning to organizational operations, will find this role particularly appealing.Resume TipsClearly outline the problems defined, hypotheses established, actions taken, and results achieved for each product/service/project you have handled.Highlight impactful experiences and learning points instead of simply listing tasks to showcase your strengths.Ensure your resume reflects your ability to drive product success and learning effectively.

Join Our Security Team! The security team at Toss Securities is composed of dedicated professionals, including a CISO, Security Engineers, Security Researchers, Information Security Managers, and Privacy Managers. We are committed to creating secure services, receiving robust support from the entire organization, and collaborating effectively across all departments. Our team members, with diverse experience ranging from 1 to 20 years, primarily come from backgrounds in information security firms and corporate security roles. We actively share knowledge and collaborate to achieve common goals. To ensure the safe operation of our securities services, we conduct vulnerability assessments across various fields such as applications, cloud, infrastructure, and network. We are also developing automated testing systems using DAST, SAST, and IAST tools to enhance our testing framework. Your Responsibilities: Collaborate with relevant departments from the service planning stage to perform security reviews and provide guidelines for safe service implementation. Conduct vulnerability assessments on Toss Securities' internal and external services (WTS, MTS, operational systems, etc.), analyze results, and suggest improvements. Perform infrastructure vulnerability assessments as required by electronic financial regulations and domestic/international security certifications (Public/Private Cloud, Server, DBMS, Network, etc.). Execute scenario-based internal/external penetration tests and conduct preliminary checks to prevent internal information leaks. Who We're Looking For: Individuals with over 7 years of experience in vulnerability assessments. Experience in operating or conducting assessments with infrastructure vulnerability assessment tools. Experience in developing tools or automation programs for vulnerability assessments. Ability to perform REST API vulnerability assessments based on an understanding of MSA environments. Experience in security audits identifying vulnerabilities such as IDOR in Java or Kotlin source code. Experience in assessing application vulnerabilities in Android or iOS environments. Understanding of electronic financial services and securities systems is a plus. Experience or understanding of Attack Surface Management is a bonus. Application Tips: Include any services or programs you've developed or participated in, specifying the language, role, deployment status, and operational environment. Detail specific vulnerabilities identified through SAST, DAST, Image Scanning, Secret Scanning, and your corrective actions (company/service names can be anonymized). Explain how you assessed and responded to actual security incidents or potential risks, such as secret exposure or high-risk image vulnerabilities. Share challenges and solutions encountered during security assessment automation or policy application processes. Hiring Process at Toss Securities: Application submission > Job interview > Cultural fit interview > Reference check > Salary negotiation > Final acceptance and onboarding. Additional Information: Providing false information in your resume or discovering disciplinary actions in your employment history may lead to termination of the recruitment process.

Introducing Toss Securities Toss Securities has rapidly become a leading player in the overseas stock trading market with 7.4 million registered users and 4 million active monthly users, expanding customer options across various investment products such as stocks, bonds, and options. We are the only community equipped with an R&D team, including UX and machine learning, striving for long-term improvement in customer experience and innovation. Experience the opportunity to connect with global users as we expand our services beyond Korea. We foster a culture of collaboration with experts from diverse fields based on autonomy and accountability. At Toss Securities, our primary goal is to innovate customer experiences. We redefine investment experiences through user-centric design that is easy and familiar for everyone. How Toss Securities Product Designer (Japan) Works Take the lead in designing and making decisions regarding all user experiences. No separate approvals or reports are necessary; the Product Designer holds full responsibility and authority over user experience decisions. Each silo comprises a minimum of 6-8 team members to create products, fostering an independent decision-making environment akin to joining a small startup! Your focus will solely be on solving user problems, with top-notch experts in research, writing, and graphics assisting as needed. You'll consider UX localization for the Japanese market while also contemplating the business growth of the product. Continuously collect qualitative and quantitative feedback on the inconveniences faced by Japanese customers to enhance the overall experience.

Join Toss Securities, an innovative global securities firm that is revolutionizing how everyone views investment. We are rapidly becoming the leading platform for overseas stock trading. If you aspire to create products that facilitate growth alongside our investors, we invite you to apply to join 'Toss Securities'. Introducing the WM Innovation Tribe's Advisory SiloOur mission within the WM Innovation Tribe is to attract high-net-worth clients to Toss Securities and create an exceptional advisory experience tailored to their needs. Our primary goal is to demonstrate through product experience why high-net-worth clients should choose Toss Securities. About the Team You'll JoinThe Advisory Silo is responsible for developing investment strategy marketplaces and AI-based advisory services. High-net-worth clients often struggle to find trustworthy asset management partners in complex market environments. We aim to provide services that propose optimal strategies aligned with clients' asset sizes and goals, thereby establishing Toss Securities as their trusted long-term partner. As a solo designer, you will take the lead in crafting these experiences. Your Key Responsibilities- Design a conversion flow that helps high-net-worth clients clearly understand and join our membership program.- Create seamless experiences for subscribers to naturally enjoy premium benefits.- Experiment with and improve the UI of key screens to enhance subscription conversion and retention rates.- Collect qualitative and quantitative feedback on user pain points and use it to enhance experiences.- Simplify complex policies related to payments and subscription management into user-friendly UIs.- [Check out our FAQ for Designers](https://tosspublic.notion.site/99fbc158436240cf994ef5af1ccc5537)We Are Looking for Someone Who- Has experience identifying and improving user needs based on quantitative and qualitative data.- Can design and launch solutions that address customer requirements.- Possesses strong logical communication skills to persuade team members and facilitate collaboration.- Is capable of designing structured and aesthetically pleasing App and Web UIs.- Is eager to grow alongside Toss, even without prior financial experience. Preferred Qualifications- Experience designing services that include subscription or commerce conversion and payment flows is a plus.- Familiarity with creating experiences for premium or VIP clientele is advantageous.- Experience in improving UIs based on user behavior data and measuring performance is preferred.- Ability to quickly understand complex information, technologies, and policies, and translate them into structured UIs and consistent UX.- Experience designing customer experiences across various devices, including mobile and PC, is a plus. Important Application Information- Product Designers can apply in two ways. Click the 'Apply' button to choose your application method.Quick Apply without a Portfolio: Just one strong example of your work is enough. Answer the five questions prepared by Toss without needing to submit a portfolio file.Apply with an Existing Portfolio: If you have a portfolio ready, please submit it directly.- Evaluation criteria remain the same regardless of the application method.- In both cases, the job interview will involve a deep discussion about two of your selected examples. Please note that regardless of portfolio submission, there will be a need for separate presentation material preparation later on.- After confirmation of employment, the silo you will join will be determined, with each silo developing a variety of new and existing products. Tips for Your Application- It’s beneficial to share your thought process in solving user-centered problems.- For product improvement projects, providing images of before (as-is) and after (to-be) screens will enhance your submission.- Aim for creativity and a challenging approach rather than sticking to standardized solutions.

Join Our Dynamic Team! At Toss Bank, we focus on evaluating potential through the quality of your experiences and the expected growth in your career, rather than just years of service. About the Team You Will Join Our squads consist of 1-3 Frontend Developers collaborating closely to foster both service development and personal growth. As a service-oriented squad, we operate with autonomy, with teams ranging from 4 to 15 members, akin to small startups. The Frontend chapter at Toss Bank collaborates like a cohesive unit, sharing new technologies and development expertise through weekly meetings. Want to learn more about our Frontend chapter?→ *We are building a bank on the web*(https://toss.im/career/article/tossbank-frontend-interview) Curious about the growth opportunities after joining?→ *A week in the life of a Toss Bank Frontend Developer*(https://toss.im/career/article/tossbank-frontend-oneweek) Your Responsibilities You will develop a wide range of services, from internal operating systems to customer-facing financial services like account creation, card applications, savings, and loans. Enhance productivity by building libraries and automation tools, continuously improving the frontend development environment for optimal user experience. You will also work on common services like the Toss Bank homepage and corporate user services. Who We Are Looking For Individuals with experience in server-side rendering (SSR) and developing web applications within mobile apps. Passionate developers who enjoy understanding user flows deeply and enhancing user experiences for greater convenience and efficiency. Proactive problem solvers who can articulate and share their ideas logically. Those interested in automating and improving Frontend Operation systems (CI, CD, etc.). The Services You Will Manage You will create financial services such as savings, loans, credit cards, funds, and asset management that users directly engage with, including innovative products like 'Group Savings' and 'Grow Savings'. Take responsibility for the entire process from credit evaluation to card issuance and user experience, while driving growth through data-driven experiments that enhance MAU, profitability, and customer satisfaction.

Join Our TeamThe Server Developer (Product) is an integral part of Toss's Maker Organization, Silo. Within each Silo, a diverse team of 6-8 professionals, including product owners, designers, developers, and data analysts, collaborates with autonomy, akin to a small startup.As our user base expands, our dedicated team of server developers ensures stable operations, supporting various services across Toss, distinct from the rapid experiments conducted within the Silo.What You'll Be DoingDesigning and developing the Product server, utilized daily by countless Toss customers.Offering over 50 diverse services since the launch of our easy remittance service in 2015, including financial status inquiries, pedometers, and luck quizzes.Implementing cutting-edge technologies to ensure service stability while promptly addressing user feedback and issues.Who We're Looking ForIndividuals with experience in designing and operating high-availability, scalable systems.Professionals with a background in developing systems that manage large-scale real-time traffic.People who have faced and resolved system outages effectively.Passionate individuals who treat the service as their own, embodying a sense of ownership.Collaborators eager to share insights and ideas gained from service development, constantly seeking technical challenges.Services You Will HandleLoan: Create services that allow users to easily compare various loans and manage them efficiently. We aim to be the go-to choice for credit loans, mortgage loans, refinancing loans, and card loans.Marketplace: Develop essential services, such as credit card benefit comparisons, investments, and auto insurance, for financial users.Payment: Work on Toss's simple payment service, TossPay, handling everything from online and offline payments to new payment method development and user acquisition promotions.Commerce: Enhance Toss's payment capabilities through commerce initiatives, launching group-buying and seller admin services to create value for both users and sellers.Benefits: Lead the creation of innovative services in the benefits tab, including pedometers, live shopping, lucky lotteries, and point rewards for friends.Ads: Expand Toss's advertising business, developing stable-serving products that handle large traffic volumes while integrating ad network developments.Home: Create services related to the home screen, the first touchpoint for all Toss users, analyzing assets and expenditures while connecting users to other relevant Toss services.

Join Our Team! The Network Engineering team is tasked with establishing Toss Securities' network and security systems, along with managing data center operations. We collaborate with exceptional team members from diverse sectors including finance, commerce, portals, and gaming. Our goal is to support product focus by ensuring infrastructure capable of handling large-scale traffic and driving automation for quicker product releases. Your Responsibilities: Install and maintain Toss Securities' network and security devices, conducting regular status checks and resolving operational issues. Register and manage asset information for network and security devices (serial numbers, status, locations, etc.). Document work logs and change history for installation, migration, and decommissioning tasks. Oversee and enhance Toss Securities' network monitoring solutions. Provide rapid onsite response and first-level troubleshooting during incidents. Plan and support schedules for regular inspections of network and security devices. Be available for night or weekend maintenance when necessary. Manage cable connections for servers and storage, supervising cable installation by contractors. Who We Are Looking For: At least 5 years of experience in network technical support and field engineering. Understanding of network cabling standards and wiring practices is essential. Ability to respond effectively to incidents and perform basic network troubleshooting. Experience in collaborating with maintenance vendors and managing inspection documentation. Operational experience with major network equipment like Cisco and Arista is required; experience with Citrix NetScaler is a plus. Familiarity with security devices such as firewalls and VPNs, alongside a strong understanding of network security is preferred. Application Recommendations: In your resume, highlight a memorable case of technical problem-solving (optimization, bug fixing, etc.). Detail projects you've contributed to, including duration, roles, technology stack used, and improvements made. Your Journey with Toss Securities: Application submission > Job interview > Cultural fit interview > Final acceptance and onboarding. Please Note: This position is a contract role with a duration of one year. Any discrepancies in the resume or disciplinary records may result in cancellation of employment. Applicants subject to hiring restrictions or disqualifications as per Toss Securities' policies may have their applications canceled. Applicants with disabilities or veterans will receive preferential treatment in accordance with relevant laws. A Note for Future Colleagues: “At Toss Securities, you can experience both the constraints of a financial infrastructure and the trendy mobile services of an IT company!” The financial infrastructure in South Korea can be quite restrictive, limiting the breadth of experiences. However, at Toss Securities, you have the responsibility and authority to implement solutions that benefit the business, allowing for valuable experiences without being bound by irrelevant solutions dictated from above.

About the Team You'll JoinThe Server Developer (SRE) is an integral part of the server platform team.Toss typically operates with small, feature-based silo teams comprising planners, designers, and developers. The server platform team is responsible for creating common functionalities and frameworks needed across these silo teams.This year, the server platform team aims to enable quicker and smoother launches of securities services while ensuring their stable operation, with plans to expand many more services in the future.Unlike silo teams, there are no separate planners in the server platform team. Engineers within the team take on the roles of both planners and developers, actively contemplating necessary features, gathering feedback, and determining the direction for development. Responsibilities You Will Have Establishing preventive measures and responding to incidents for stable services.Design and operate response processes to minimize service impact during incidents, ensuring rapid response.Analyze root causes (RCA) of incidents, enhance pre- and post-detection capabilities, and build systems to shorten recovery time and prevent recurrence. Ensuring service visibility and availability.Achieve visibility across infrastructure, networks, and Kubernetes environments, linking it to actual service metrics.Establish SLOs to clearly define problem situations, continuously enhancing the alert system with necessary metrics.Proactively identify potential bottlenecks in components in anticipation of traffic increases and improve structures. Conducting in-depth analysis of issues and identifying root causes.When service disruptions occur, analyze beyond logs, utilizing eBPF, memory, network, and kernel areas for comprehensive root cause analysis.Precisely analyze internal application behavior to provide optimal resource configuration guidelines to developers. Automating operations and developing internal tools.Automate repetitive analytical tasks and identify areas that hinder operational efficiency, developing tools for improvement.Automate testing environments to enhance service reliability and provide easy access for colleagues.

Join Our TeamAs a Product Server Developer at Toss, you will be one of the pioneering members of our team, gaining diverse experiences as we venture into the offline payment industry.We are excited to shape the history of payment systems, innovating the payment ecosystem with enthusiasm.You will collaborate with various colleagues, including Business Development Managers, Purchasing Managers, and Hardware Engineers, to successfully launch top-tier payment devices.Your ResponsibilitiesDesign and develop product servers that create digital innovations in the offline payment market, providing beautiful payment experiences.Handle all aspects of system service design and operations to ensure we deliver utmost value.Utilize cutting-edge technologies to maintain stable service operations, swiftly addressing user feedback and challenges.Ideal CandidateYou have experience designing and operating high-availability, scalable systems.You possess a background in developing systems that handle large-scale, real-time traffic.You have faced and resolved system failures, demonstrating your problem-solving skills.You approach your work with a strong sense of ownership and dedication, treating the service as 'your own'.You enjoy sharing insights and ideas gained from service development and are eager to embrace continuous technical challenges.Resume TipsDetail your experience in developing solutions that efficiently and reliably handle high traffic volumes.If you have proactively identified and improved issues, please specify the technologies used and the extent of improvements.Include any experience you have in participating in the early stages of service development.Experience in developing B2C services based on the Spring Framework is a plus.Technologies We UseKotlin, Java, GradleNetty, Spring MVC, Spring Webflux, Spring Boot, Spring Cloud Gateway, Spring Cloud ConfigJPA/Hibernate, MySQL, MongoDB, Hadoop, Redis, Memcached, ZookeeperKubernetes + Istio, Haproxy, NginxGoCD, ArgoCD, Consul, Vault, Git, Docker, Spinnaker, Jenkins, Ceph, HarborKafka, ELK, Prometheus + Thanos, InfluxData, Grafana

About the Team You'll Join The Compliance Manager at Toss Securities is an integral part of the Compliance Division, specifically within the Compliance Team. This team is responsible for establishing and operating internal control systems essential for the development of Toss Securities' innovative products and services, as well as conducting pre-reviews to prevent legal risks. Team members collaborate and share their expertise based on their individual specializations to achieve common objectives. Your Responsibilities Upon Joining [Business Compliance Advisory] Analyze relevant regulations at the time of launching new services and design practical alternatives to mitigate risks. Provide compliance reviews in close communication with operational departments (Tribe/Silo). [Internal Control Inspections] Identify tasks requiring internal control inspections and establish inspection policies and measures. Enhance internal control checklists by department and improve the inspection process. When issues are detected during inspections and monitoring, derive corrective measures and communicate them to operational departments for follow-up. We Want to Work With Someone Who Has a minimum of 3 years of experience in compliance monitoring or legal affairs in a securities firm. Possesses practical knowledge of core business logic in the securities industry (e.g., brokerage, advisory/management services). Has experience in establishing diverse inspection and monitoring policies related to internal controls based on a strong understanding of retail services and mobile business. Exhibits excellent communication skills for collaboration with operational departments. It Would Be Great If You Also Have Experience collaborating with product teams. A strong understanding of control logic for various financial products. Knowledge in other internal control areas such as AML, consumer protection, and personal credit information. Experience dealing with regulatory bodies, such as responding to inspections by the Korea Exchange. Resume Submission Tips Clearly outline your actual monitoring, inspection, and improvement measures performed by task. If you have experience in establishing various inspection and monitoring policies related to internal controls based on a strong understanding of retail services and mobile business, please detail that. Describe experiences where you presented alternatives instead of a simple 'No' when faced with unreasonable demands from operational departments. If you have examples of process improvements that not only strengthened internal controls but also created value, please provide details of the improvements and their impacts. Your Journey to Joining Toss Securities Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Discussion > Final Offer and Onboarding Please Note Employment may be rescinded if false information is found in your resume or if disciplinary actions during your employment history are confirmed. Employment may also be rescinded for candidates who fall under prohibited hiring categories or have disqualifying factors as per Toss Securities' internal regulations.

Join Our Audit Team Our audit team plays a crucial role in identifying and enhancing enterprise risks. We assess internal control systems and collaborate with various departments to drive tangible improvements. Guided by our motto, “Audit proactively like a vaccine, and protect as a shield until the end,” we approach our auditing tasks with a commitment to identify risks early and take responsibility for outcomes. As the regulatory environment in the securities industry becomes increasingly complex with the launch of new products, proactive risk assessments and collaboration with colleagues are vital to ensuring comprehensive control integrity across the business. Your Responsibilities Conduct in-depth audits related to regulatory compliance frameworks and internal control design following new license acquisitions (consulting/trading). Lead reviews of regulatory compliance and control appropriateness throughout the entire process of new product and service launches (including planning, development, and operations). Analyze the Financial Supervisory Service's sanctions database and financial consumer protection issues to incorporate them into audit items, deriving proactive prevention measures. Provide expertise and review monitoring rules developed in collaboration with RegTech specialists from the perspective of securities regulations and product controls. Manage the quality of regulatory and product-related documentation during inspections by supervisory agencies, supporting effective responses. We Are Looking For A candidate with over 10 years of experience in compliance, auditing, or risk management within financial investment companies or related organizations. A deep understanding of core securities regulations, including the Capital Markets Act, Financial Consumer Protection Act, and investor protection regulations, along with strong interpretive skills. Experience in reviewing regulatory compliance or control design/operations for new financial products or services throughout their entire launch process. Ability to diplomatically mediate conflicts with audit target departments and provide logical feedback centered on improvement rather than criticism. Experience participating in the development of RegTech or data-driven regulatory monitoring systems, providing regulatory/business perspective expertise is a plus. Possession of professional auditing certifications (CISA, CIA, etc.) or legal/accounting qualifications related to regulation is an advantage. Resume Tips Detail specific cases where you identified proactive regulatory risks during new license acquisition or product launch processes and led them to substantial control improvements, focusing on applicable laws and control items. If you have worked with IT specialists such as RegTech/DA auditors to incorporate regulatory control elements into IT systems or designed data monitoring rules, please emphasize this experience. Highlight your role and key achievements in preparing materials related to regulatory interpretation and product processes if you have experience responding to supervisory agency inspections. Emphasize fact-based examples of logical mediation and consensus-building among stakeholders (business departments) during internal control improvement processes. Application Process at Toss Securities Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding A phone interview may be conducted if necessary. Please Note Any false information found in the resume or disciplinary records during employment history may lead to cancellation of the recruitment process. Individuals who are prohibited from hiring according to Toss Securities' internal regulations or have disqualifying reasons may have their applications canceled. Individuals with disabilities and those eligible for national veterans' benefits are given preference in accordance with relevant laws. A Message for Future Colleagues The audit team at Toss Securities aims not just to point out issues but to drive substantial improvements and proactive risk responses, fostering a culture of continuous enhancement.

Join us at Toss Securities, where our mission is to make investing accessible for everyone. As an innovative global securities firm, we are proud to be the leader in overseas stock trading volume. If you are eager to create rapidly growing products alongside our investors, consider applying to Toss Securities. Introducing the WM Innovation Tribe's Advisory SiloThe WM Innovation Tribe is a strategic organization that attracts high-net-worth clients to Toss Securities, creating exceptional advisory experiences. Our core mission is to demonstrate why high-asset clients should choose Toss Securities through product experiences. About the Team You Will JoinThe Advisory Silo focuses on developing an investment strategy marketplace and AI-based advisory services. High-asset clients often struggle to find reliable asset management partners in a complex market environment. Through our marketplace and AI-driven insights, we aim to propose optimal strategies tailored to clients' asset sizes and objectives, reducing their uncertainty and establishing Toss Securities as a trusted long-term partner. Your Responsibilities- Design the conversion flow for high-asset clients to clearly understand and join our membership.- Create seamless experiences for subscribers to naturally enjoy premium benefits.- Experiment with and improve the UI of key screens to enhance subscription conversion rates and retention.- Collect qualitative and quantitative data on customer pain points to inform experience improvements.- Simplify complex policies like payments and subscription management into user-friendly UI.- [Check out Designer FAQs](https://tosspublic.notion.site/99fbc158436240cf994ef5af1ccc5537)Who We Are Looking For- Individuals who have experience identifying and improving user needs based on quantitative and qualitative data.- Candidates who have designed and launched products that address customer needs directly.- Strong communicators capable of persuading and collaborating with team members.- Professionals who can create hierarchically clear and aesthetically pleasing App and Web UI.- No specific financial experience is required; we welcome individuals eager to grow their financial knowledge alongside product design. Preferred Experience- Experience designing services with subscription or commerce flows, including transitions and payments.- Background in creating services for premium or VIP clients.- Experience improving UI based on user behavior data and measuring outcomes.- Ability to quickly understand and structure complex information into consistent UI and UX.- Experience designing customer experiences across various devices including mobile and PC. Important Notes- You can apply for the Product Designer position in two ways. By clicking the 'Apply' button, you can select your application method.- To apply simply without a portfolio: One solid example of your capabilities is sufficient. You can directly apply without a portfolio by organizing your work according to five questions prepared by Toss.- If you have an existing portfolio, feel free to submit it as part of your application.- Regardless of the method chosen, the evaluation criteria remain the same.- In both processes, the job interview will involve in-depth discussions about two selected cases you choose. Please note that you will need to prepare separate presentation materials later, regardless of portfolio submission.- Once hired, your specific silo will be determined, with various products being developed from new to existing businesses. Portfolio and Responses Tips- Please include your thought process in solving problems from the user's perspective.- For product improvement projects, having images that clearly show the screen before (as-is) and after (to-be) improvement would be beneficial.- Aim to demonstrate creativity and a proactive approach in your problem-solving process.

Join Our Dynamic Team As a DevOps Engineer at Toss Securities, you will be an integral part of our DevOps & SRE team. You will innovate the deployment process by applying various technologies and tools, enabling developers to deploy services with ease. In the event of system failures, you will derive intuitive metrics to identify root causes, ensuring all developers can respond swiftly to incidents. Utilizing Kubernetes and the Cloud Native ecosystem, you will enhance large-scale systems to their fullest potential. Your Responsibilities Will Include Previously focused on improving operational experience, we are now dedicated to eliminating fatigue and inefficiencies in the development experience. You will manage monitoring, incident response, and troubleshooting tasks, continuously analyzing developer experiences and overseeing the development and operational enhancements. We Are Looking For Candidates Who Have relevant experience in container orchestration, as it is a primary responsibility of this position. Possess experience in network troubleshooting, as this is a challenging aspect of the role. Can automate engineering experiences or create tools for improvements within their current organization. Thrive in a collaborative environment where teamwork is key, and can identify and eliminate inefficient processes based on their engineering experiences. Resume Recommendations Outline your experience managing infrastructure based on Kubernetes + Istio. Detail your experience building and operating metric systems in large-scale distributed environments. Include your experience in operating services based on container orchestration and CI/CD servers. Mention your experience with AWS cloud services. Technologies Used at Toss Securities Kotlin, Java, Gradle Netty, Spring MVC, Spring Webflux, Spring Boot, Spring Cloud Gateway, Spring Cloud Config JPA/Hibernate, MySQL, MongoDB, Hadoop, Redis, Memcached, Zookeeper Kubernetes + Istio, HAProxy, Nginx GoCD, ArgoCD, Consul, Vault, Git, Docker, Spinnaker, Jenkins, Ceph, Harbor Kafka, ELK, Prometheus + Thanos, InfluxData, Grafana

Join Our TeamThe Strategy Manager position at Toss Securities is part of the Strategy Division within the Strategy & Ops Team.This role involves setting goals (mission/vision, business strategy, company OKRs) from a company-wide perspective, collaborating with various teams including Product, Data Analytics, Business Development, and Finance.Your ResponsibilitiesIdentify and monitor domestic and international market opportunities to drive exponential business growth.Establish mid- to long-term strategies and business plans to convert market opportunities into business value, while collaborating with team leaders and Product Owners to prioritize strategic initiatives.Act as the key point of contact for C-level executives and team leaders, providing insights necessary for company-wide business decisions.Continuously identify corporate agendas for business improvements across all areas including product, operations, and pricing policy; facilitate project execution in collaboration with relevant teams when necessary.Review monthly/quarterly business performance, deriving insights and sharing them across the organization to enhance overall understanding of business performance.Who We Are Looking ForExperience in independent thinking based on first principles and in-depth research using various case studies to propose strategic directions and create impact.Strong analytical thinking and communication skills to distill core insights from complex problems and deliver them effectively.Proven experience in using data to accurately assess the current state of products and derive strategies for improvements and growth.Ability to draw insights from competitor and benchmark data through industry, business, and financial analysis skills.Flexibility to adapt to dynamic business environments and effectively engage in cross-functional work by understanding the needs of the field.Experience or understanding in planning and executing strategies in adjacent areas and new growth businesses that expand the scope of traditional securities, including digital assets, global content platforms, social-based services, and B2B investment infrastructure.Experience in formulating strategies for entering overseas markets, establishing local partnerships, reviewing regulatory environments, and executing localization is preferred, along with a strong willingness to learn about related fields.Journey to Join Toss SecuritiesApplication submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboardingPlease NoteIf any false information is found in the resume or if any disciplinary matters are confirmed during employment history, recruitment may be canceled.Recruitment may also be canceled for those who fall under prohibited hiring categories or have disqualifying reasons according to Toss Securities regulations.Individuals with disabilities and those eligible for national veterans' benefits are given preference in accordance with relevant laws.A Note for Future ColleaguesWe are looking for bold dreamers and courageous individuals who are eager to grow and contribute to the transformation of Toss Securities as our Guiding Light: “To go where no one has gone before, faster than anyone else.”

Join us in creating the ultimate user experience!Are you passionate about designing exceptional financial services that provide intuitive and delightful experiences for everyone? At Toss, you’ll be a key player in shaping the user experience of our beloved Toss app, which is cherished by 17 million monthly users.From money transfers to seamless payments and shopping, we are setting new standards in user experience across diverse services.Ready to make history in finance? Apply now at Toss!############# About Toss- We are responsible for the user interface and experience of the leading financial platform with the highest active user count, integrating services across all our subsidiaries.- Experience the impact of your designs as they reach 17 million customers.- We create experiences that resonate with users’ daily lives, from financial products like loans and transfers to shopping and lifestyle applications.- Our designs ensure a harmonious integration of various services and features throughout the Toss ecosystem.# How Toss Product Designers Work- As the sole designer for products, you will proactively design and make decisions for all user interfaces.- No need for separate approvals. As a Product Designer, you hold the utmost responsibility and authority over user experience.- Each silo consists of 6 to 8 team members, allowing you to make independent decisions much like joining a small startup!- Your primary focus will be solving user problems, collaborating with top experts in research, writing, and graphics.- Collect qualitative and quantitative feedback on customer pain points and continuously improve to deliver the best experiences while also considering business growth.# We Are Looking For Someone Who- Has experience in improving user-centric solutions based on quantitative and qualitative data.- Can design and launch solutions in the market based on this understanding.- Possesses the ability to create clear and visually appealing App and Web UI.- Can logically persuade team members and collaborate effectively for an unparalleled customer experience.- Is capable of evaluating and refining their designs through data analysis.- Actively shares learning and contributes to a growth-oriented environment for designers.- Financial industry experience is not required. We welcome individuals eager to grow together!# Important Application Information- Product Designer candidates can apply in **two ways** by clicking the 'Apply' button.>- **Quick Application without a Portfolio**: Just one well-articulated example of your capabilities is enough. Prepare responses to five questions provided by Toss and apply without a portfolio file.>- **Apply with an Existing Portfolio**: If you have a portfolio ready, feel free to submit it with your application.>- Regardless of the method chosen, the evaluation criteria remain the same.>- In both rounds, during the job interview, you will discuss two selected examples in depth, so be prepared for additional presentation materials regardless of portfolio submission.>- After acceptance, the silo you will join will be determined, working on various products from new ventures to existing businesses.# Recommendations for Portfolio and Responses- Document your thought process in solving user problems from their perspective.- For product improvement projects, include images showing the before (as-is) and after (to-be) states for clarity.- Highlight any creative and innovative problem-solving approaches, rather than sticking to standardized solutions.# Joining the Toss Journey- Application Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Discussion > Final Acceptance