Server Developer (Foundation) at tosscareers | Seoul

Join our innovative team at tosscareers as a Server Developer (Foundation). In this role, you will be instrumental in building robust server-side applications that drive our technology platform. You will collaborate with cross-functional teams to develop scalable solutions that enhance user experience.

Join our dynamic team at Tosscareers as a Node.js Developer! We are looking for innovative and passionate developers who thrive in a fast-paced environment and are eager to contribute to exciting projects. As a Node.js Developer, you will work with cutting-edge technologies and collaborate with cross-functional teams to deliver high-quality solutions.

About the Team You Will Join The iOS Developers at Toss operate within a matrix structure that encompasses various silos, teams, and the iOS chapter. At Toss, services and products are developed within siloed teams of 6-8 diverse professionals, fostering an environment of autonomy akin to that of a small startup. Apart from the silos, there is a dedicated team focused on creating shared modules within the iOS code, emphasizing deep technical considerations, accessibility for individuals with disabilities, and security aspects, ensuring the creation of services truly for the customer. The iOS chapter hosts an Engineering Day every Thursday, allowing members to step outside their silos to engage in active discussions about technology, share development expertise, and conduct code reviews together. Your Responsibilities Upon Joining Contribute to the development of Toss’s super app, which offers hundreds of services including money transfers, asset management, credit management, loans, insurance, authentication, and payments. Work on innovative financial services being developed by Toss, such as Toss Bank and Toss Securities. Continuously challenge yourself and conduct various experiments to develop a safe and fast iOS application to enhance user financial experiences. Utilize a design and automation system that generates screens from defined models and a fully Swift project split into over 150 modules, allowing you to concentrate on core logic during development. Who We Want to Work With Ideal candidates will have over 3 years of experience in iOS development or possess equivalent skills. Proficiency in Swift development and experience with RxSwift are highly desirable. An understanding of iOS and Apple's design philosophy (HIG) is preferred. Strong comprehension of network and encryption algorithms is required. Familiarity with performance and stability improvement tools such as Instruments is advantageous. Resume Tips Please share any experiences where you demonstrated ownership and led your own projects or overcame challenging technical problems. We appreciate familiarity with testable code practices and experience in automation for testing and deployment. Let us know if you have experience in developing large-scale services. It's worth noting that some of our team members began their journey with RxSwift at Toss; we value solid fundamentals, logical thinking, and the ability to implement code more than specific technical stacks or frameworks. Technologies Used at Toss Multi-module App, Micro Feature Architecture, Example (Micro) App Swift Concurrency, RxSwift, Combine AutoLayout, FlexLayout, and more.

Join our innovative team as a Frontend Developer where you will play a crucial role in developing and enhancing our platform. You will work closely with designers and backend developers to create seamless user experiences. Your expertise in frontend technologies will help us deliver high-quality software solutions that meet our users' needs.

As a Personal Assistant, you will be at the forefront of operational excellence, providing vital support to our team in a fast-paced environment. Your organizational skills will ensure that our daily operations run smoothly and efficiently, allowing us to focus on delivering outstanding service to our clients.

Join Us Without a Portfolio!If you have practical research experience in any domain, feel free to apply without a portfolio.How Tossplace UX Researchers WorkWe delve into real-world issues occurring in offline stores and conduct research to propose product strategies. Understanding the behaviors and contexts of both owners and customers is essential for creating effective products.As a UX Researcher, you'll work closely with the product team. Instead of merely executing research requests, you'll identify product issues and collaboratively drive strategic proposals.Engaging from the initial stages of product development, you'll derive insights necessary for prioritizing product features, moving beyond simple usability tests or satisfaction surveys. Our research process is designed to connect findings directly to actionable outcomes.At Tossplace, we tailor research methodologies to reflect the unique characteristics of offline store operations, continuously exploring various methods to address these.Responsibilities You'll Share with UsIdentify product issues in offline store environments and effectively communicate the voices of owners and customers to the team.Lead research efforts for hardware and software products, such as table orders, POS, and payment devices.Based on user feedback, suggest directions for product improvements and identify key areas for enhancement.Investigate user experiences through appropriate research methods including usability testing, in-depth interviews, focus group interviews, surveys, and field observations.Establish processes and provide training to enable diverse team members to hear directly from owners.Your ProfileHands-on experience in conducting UX research on practical projects is essential.You should be capable of selecting optimal research methodologies suited to various situations and effectively communicating research outcomes to guide product direction.Strong communication skills are necessary to collaborate smoothly with siloed teams and persuade stakeholders for product improvements.Experience or a solid understanding of enhancing user experiences with digital products (web, apps) or offline products is preferred.A desire to observe user behaviors firsthand, beyond just desk work, and uncover the essence of problems is highly valued.Experience in managing multiple research projects simultaneously in a fast-paced environment is a plus.Important NotesThis position allows for applications without a portfolio, so don't hesitate to apply even if you've faced challenges in portfolio creation.Please detail specific practical projects where you designed and conducted research aimed at improving user experiences through the 'Apply' button. Research projects or side projects are not suitable as application examples.Focus on outlining the process of defining project problems, setting hypotheses, designing and validating research, and deriving results. Sharing what you learned during this process is encouraged.Interviews will be conducted in-depth based on two examples you choose, independent of portfolio submission, and you will need to prepare separate presentation materials later.Your Journey to Joining TossplaceApplication Submission > Job Interview > Cultural Fit Interview > Reference Check > Compensation Negotiation > Final Acceptance and OnboardingA Message for Future Colleagues“Research for reports simply doesn’t exist here!”If you have experience as a researcher, this will resonate with you. The research conducted here focuses on real product improvement issues, allowing you to see how research outcomes are directly reflected in products.

Join our dynamic team at Tosscareers as an Account Manager! In this role, you will play a key part in cultivating and maintaining strong relationships with our clients, ensuring their needs are met and exceeded. You will be responsible for driving customer satisfaction and identifying opportunities for growth.

Role Overview tosscareers is hiring a Business Analyst in Seoul. This role centers on analyzing business data and trends to support better decision-making across the company. The Business Analyst partners with different teams to improve how the business operates. What You Will Do Review and interpret data to identify patterns and trends Deliver actionable insights that inform business strategies Collaborate with multiple departments to boost operational efficiency

Role Overview Tosscareers is hiring an OpenStack Cloud Engineer in Seoul. This role focuses on designing, deploying, and managing cloud infrastructure using OpenStack. The engineer will help shape and maintain Tosscareers’ cloud services. What You Will Do Design and implement cloud infrastructure solutions with OpenStack Deploy and manage cloud environments to support business needs Work to improve the scalability, reliability, and security of cloud services What We Look For Hands-on experience with OpenStack Strong interest in cloud technologies Ability to support innovation and operational improvements in cloud environments Location This position is based in Seoul.

About the Role tosscareers is looking for a Research Assistant in Seoul to help advance ongoing research projects. This position supports key research efforts with careful analysis and a strong focus on accuracy. What You Will Do Assist with research tasks and data collection Support project teams by organizing and analyzing information Contribute to the progress of active research initiatives Location Seoul

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 our dynamic team at Tosscareers as a Server Developer, where your skills will help shape innovative products and solutions. We are looking for passionate individuals who thrive in a collaborative environment and are eager to contribute to exciting projects.

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.

We are seeking a talented Server Developer with a focus on Blockchain technology to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining server-side applications that leverage blockchain technology. Your expertise will contribute to innovative solutions that enhance our platform's capabilities and user experience.

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 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.

About the Domain You'll Join Toss is composed of several domains that operate as independent businesses, including Growth, Foundation, Commerce, Pay, Financial Marketplace, and Ads & Benefit. The Growth domain is designed to drive an increase in Toss app users and generate higher revenue per user. To propel Toss's growth, it is essential to not only attract new users but also encourage existing users to utilize more services within the app. You will be responsible for analyzing and improving existing services while also creating new services that contribute to user growth. Your Responsibilities Design and develop the product server utilized by numerous Toss customers. Establish valid hypotheses and validate them through experiments, utilizing data insights to progressively enhance product-market fit. Leverage trendy technologies to ensure stable service operation, while listening to user feedback to quickly and flexibly resolve issues. What You Should Note This position is aimed at individuals interested in creating new services that drive growth. While it shares similarities with the existing Server Developer (Product) role, it will specifically place you in the Growth domain. If you wish to have flexibility in your placement based on your strengths, consider applying for the [Server Developer (Product)](https://toss.im/career/job-detail?job_id=4071141003) position. Please note that Toss is not hiring individuals eligible for military service exceptions (industrial personnel, research personnel) at this time. Who We Are Looking For Individuals with experience in designing and operating high-availability scalable systems. Developers who have experience in creating systems that handle large-scale real-time traffic. Those who have encountered and resolved issues during system outages. Individuals who are passionate about their services and approach their work with a sense of ownership. Collaborative team players who are eager to share insights and ideas gained from service development, constantly seeking technical challenges. Technologies We Use at Toss Kotlin, Spring MySQL, MongoDB, Hadoop, Redis, Kafka, Elasticsearch The Journey to Join Toss Application submission > Functional interview > Cultural fit interview > Reference check > Offer negotiation > Final acceptance and onboarding A Note for Future Colleagues "Let's achieve explosive growth together in the Growth Domain!" The Growth domain is the ideal environment for those who love products and believe in the importance of analysis. You'll have plenty of opportunities to advance your career alongside outstanding makers. Creating value through deep analysis leads to daily dynamism and excitement in the Growth domain, with metrics like MAU and ARPU providing immediate feedback on your impact.

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.

#LI-DNI Join Our Dynamic Team As a Product Manager, you will be responsible for essential features to ensure the stable operation of our banking services. This includes defining problems, uncovering challenges, proposing directions, and executing improvement plans. Streamline and automate core services such as membership, authentication, and remittance, enabling our team to deliver products more swiftly. Manage risks from security and compliance perspectives while improving products through VOC analysis. Gain experience in operational management, new platform planning, and leading development projects. Want to learn more about the PM chapter?-> Everything about Toss PM Chapter (https://tosspublic.notion.site/Product-Manager-8f7865c83dca40bf8bef5a116144e9f4) Your Responsibilities Upon Joining Lead critical areas such as membership, authentication, and remittance to stabilize and effectively expand our banking service through diverse improvement initiatives. Analyze customer feedback to identify areas for enhancement, thereby increasing product quality and customer satisfaction. Evaluate relevant policies and operational processes, eliminating unnecessary procedures and enhancing operational tools through function development and automation. We Seek Individuals Who Possess a deep understanding of online products and services rather than just banking domain knowledge. Experience in banking products is not mandatory. Have a proven track record of spearheading improvement initiatives for online products and services, achieving excellent outcomes. Have actively diagnosed and resolved issues post-launch, maximizing the value delivered to customers and teams. Can effectively communicate with various stakeholders (planning, design, development, CX, partners) to operate services from multiple perspectives. Have documented experiences in user-centered problem discovery and functional improvements. Can prioritize tasks and quantitatively demonstrate improvements post-deployment. Resume Writing Recommendations Detail your contributions to the improvement planning of products/services you managed. Highlight experiences that showcase how you expanded business value. Describe your experiences in defining problems in product operations and strategizing solutions, rather than merely listing projects. Present measurable outcomes and criteria for your execution efforts. Your Journey to Joining Toss Application > Job Interview > Cultural Fit Interview > Compensation Negotiation > Final Acceptance and Onboarding A Word from a Colleague "If it means making the product better, I can try anything with my colleagues." I'm responsible for improving and stabilizing internal products that enable Toss team members to work more efficiently. The insights and experiences I've gained managing various operational aspects and productivity tools contribute to innovations that drive the rapidly growing Toss team toward greater goals! At Toss, numerous improvement points discovered while managing products are not neglected. As a PM, you know best how much inconvenience users face and why these inconveniences occur. You are empowered to make decisions for problem-solving without worrying about external opinions. You can do anything to make your product 100 times better, with strong colleagues by your side who can help facilitate fundamental discussions about the product and quickly execute solutions. #LI-DNI

All applicants will have the opportunity to take a coding test!Experience unique to Toss Payments."Discover new possibilities alongside colleagues who help reduce trial and error."Create products with a lifespan of over 20 years that impact various merchants utilizing Toss Payments.Engage in complex tasks that involve understanding the history of previous technologies to identify improvement strategies.All engineers work towards a common goal, collaborating across teams on specific problems and organically removing blockers during the solution process.Embrace challenges and try anything to overcome your limits and discover new potentials.About Toss Payments:- Toss Payments aims to provide all necessary solutions for businesses, from technology to operations, understanding the challenges and inefficiencies they face. We create products that offer consumers a simple and convenient service experience while ensuring merchants can focus solely on their business.- We operate under the principles of autonomy and responsibility, fostering a strong culture of mutual trust as we pursue our core goal of 'innovating the electronic payment market.' We are looking for colleagues who will help shape the future of the payment industry!What you'll be working on:- Develop scalable and flexible systems to easily implement the continuously increasing payment requests and diverse requirements.- Create systems capable of handling traffic surges, such as those during flash sales, without crashing.- Build settlement systems that can quickly and accurately compute numerous transactions with hundreds of requirements.- Develop new APIs to address business difficulties in a microservices architecture that allows for seamless and uninterrupted deployments.- Establish an ecosystem to support OpenAPI, connecting Toss Payments with client systems.Who can apply:- Individuals with less than 3 years of practical development experience.- Those with no restrictions on overseas travel.- Candidates available to join by June 2024.Technologies used at Toss Payments:- Java, Kotlin, Gradle- Spring MVC, Spring Webflux, Spring Batch, JPA, Spring Cloud Gateway, Spring Cloud Config, Netty- MySQL, Redis, ElasticSearch, Kafka, OracleThe joining process at Toss Payments:- Application submission > Coding test > Job interview > Cultural fit interview > Reference check > Negotiation of terms > Final acceptance and onboarding.- Application submission: April 15 (Monday) to April 24 (Wednesday) by 23:59.- Coding test: April 27 (Saturday) at 14:00 (90 minutes total).- The test will consist of 60 minutes of algorithm questions and 30 minutes of descriptive questions.- Subsequent hiring process: Only those who pass the coding test will be notified of individual schedules.- Onboarding: To take place in June.Coding test details:- The coding test will be sent to the registered email on April 27 (Saturday) at 2 PM.- Time limit: 90 minutes.- Submission deadline for the coding test: April 27 (Saturday) at 3:30 PM.- All applicants will have the opportunity to take the coding test.Frequently Asked Questions:Q. Can I apply if I have a past rejection?- There are no restrictions on applying for the Toss Payments Server Developer position for those with less than 3 years of experience. Feel free to apply even if you have been previously rejected.Q. Can industrial function personnel or specialized research personnel apply?- Currently, Toss Payments does not permit the hiring of personnel under military service exceptions, thus they cannot apply.Q. Can foreigners or those living abroad apply?- If you have received a work visa or have no issues obtaining one, you are eligible to apply.