High-Speed Interface (IO) Design Engineer

Key ResponsibilitiesDevelop and sustain ROM code along with software for early system initialization.Port and tailor Arm Trusted Firmware (TF-A / TF-M) to meet project needs.Implement essential system trust primitives including Secure Boot, firmware updates, and RoT components.Work closely with hardware teams for effective SoC bring-up, low-level debugging, …

Key ResponsibilitiesIntegrate and validate IP blocks within the System on Chip (SoC) architecture while assisting in the physical implementation process.Formulate specifications, architecture, and operational scenarios at the SoC level.Comprehend standard interface specifications (e.g., PCIe) and chip operational scenarios to effectively configure integrated IP blocks.Conduct performance analyses through chip-level simulations focusing on bus and memory bandwidth, alongside FPGA prototyping.

Join Our TeamThe Security Division at Toss Securities is composed of the Security Policy Team, Security Engineering Team, Security Audit Team, and IT Innovation Team. The Security Engineering Team is responsible for handling technical security tasks.Our security team is dedicated to creating a safe environment for Toss Securities services, receiving comprehensive support from all departments and collaborating closely with them.Each role within the team allows for the sharing of experiences and knowledge with peers across affiliated companies, fostering active collaboration towards common goals.The team consists of members with varying levels of experience, ranging from 1 to 20 years, most of whom have backgrounds in information security firms and corporate information security roles.This year, the Security Engineering Team aims to enhance its information security management system to an internationally recognized standard and strengthen technical capabilities in SOAR, ZTNA, and Cloud/Container security.

Key ResponsibilitiesCraft and implement a robust end-to-end security architecture tailored for SoC-based products.Develop features for Secure Boot and Anti-rollback mechanisms.Manage Key Provisioning alongside Hardware Root of Trust.Oversee Secure Lifecycle State management (LCS) for firmware, keys, and devices.Design and integrate security modules to enhance firmware and system-level defenses.Conduct thorough vulnerability assessments, attack surface evaluations, and implement memory protection hardening strategies.Integrate, validate, and optimize hardware cryptographic engines including AES/GCM engines, TRNG, PKA, RSA, PQC, and hash accelerators.Establish secure firmware update and rollback protocols along with comprehensive product lifecycle controls.QualificationsDeep understanding of embedded security principles, including Secure Boot, key management, and cryptography.Demonstrated experience with TLS, X.509, ECC, AES, and various cryptographic or security libraries.Proficient in C/C++ or Rust for developing secure system software.Experience identifying and analyzing security vulnerabilities in SoC/FPGA-based systems.Practical experience with hardware cryptographic engines and security IP blocks (e.g., AES/GCM, SHA accelerators, TRNG/DRBG, PKA).Solid understanding of firmware and key lifecycle management.Preferred QualificationsFamiliarity with TPM, HSM, TrustZone, OP-TEE, or related hardware security architectures.Experience in implementing secure firmware signing, provisioning, and deployment pipelines.Background in validating cryptographic engines under standards such as FIPS 140-3, NIST CMVP.Security engineering experience specifically for AI accelerators, networking chips, or SoCs.Contribute to development practices aligned with standards such as FIPS, PSA Certified, CAVP, and CMVP.

Join Us to Create the Future of Communication!At ChannelTalk, we are dedicated to driving sustainable growth for businesses through our all-in-one AI messenger, which focuses on enhancing customer conversations to guide business directions effectively.Embracing the philosophy that 'the customer has the answers', we integrate CRM-based support experiences with AI automation to streamline customer service efficiency and improve customer experiences, all within a single product. Our rapid growth, achieving over 20% market share in Japan, sets a solid foundation for our ambitious expansion into the US market as a global SaaS leader.We collaborate with top talents to develop a 'future classic' product that could symbolize a new generation, much like Google Search and the iPhone.

Key ResponsibilitiesDesign, develop, execute, and manage test cases to ensure the quality of our software solutions.Lead the verification of our solutions' functionality, performance, compatibility, and reliability.Analyze and reproduce issues that arise during the verification process and collaborate with relevant teams such as development, hardware, and operations to resolve them.Analyze and diagnose issues occurring in customer environments, contributing to internal solution improvements and enhancing customer satisfaction.Develop test scenarios and establish validation plans based on customer requirements.Build and enhance a verification framework based on quality standards throughout the product lifecycle.

About the Team You'll Join- As a Payment Software Engineer at Toss, you'll be part of the Device Team, collaborating with Device Owners, Device Software Engineers, Embedded Software Quality Engineers, and Hardware Engineers.- The Device Team is at the forefront of revolutionizing the offline payment industry, crafting innovative changes in the payment ecosystem.- You will work alongside Business Development Managers, Purchasing Managers, Android/Server Developers, and others to successfully launch top-tier payment devices.Your Responsibilities- Develop payment applications across multiple OS environments (Android, Windows, Linux, RTOS).- Specialize in card data processing tailored for VAN companies and develop communication protocols.- Conduct security certifications in compliance with credit card associations.- Develop and certify EMV, Tmoney, and Weezle applications.- Work on NFC feature development and Apple Pay integration and certification.Who We’re Looking For- We seek an individual with over 5 years of experience in payment domain development using C and C++.- Experience in developing payment module firmware or applications is a strong plus.- Familiarity with credit card security certification or EMV certification is highly desirable.- Experience in developing Vcat or DLL for POS systems would be advantageous.Your Journey with Toss- Application submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding.A Note for Potential Colleagues"You can be part of realizing a dream!"- I am currently developing payment software at Toss. If you're eager to experience the thrill of developing hardware products, this is the place for you.- If you've ever seen a Toss terminal, you've witnessed the process of our dreams coming to life.- At Toss, you will focus on development amidst passionate teammates and a unique culture, allowing you to challenge new frontiers.

Welcome to the Journey of Joining the Daangn Team!At Daangn, we strive to create an environment where individuals can grow alongside the company's growth.The Daangn recruitment team is here to help facilitate those moments of thoughtful collaboration with wonderful colleagues. Introducing the Data Value TeamThe Daangn team is dedicated to uncovering valuable information within local neighborhoods and resolving inconveniences in regional living. To create user value, it's essential to provide trustworthy information that users can easily access and incorporate into their decision-making. While Daangn already utilizes extensive data for decision-making, maximizing the value of our data requires significant changes.The vision of the Data Value Team is to make decisions for users through data every day. To realize this vision, we proactively tackle challenges in data value realization and lead the way in solving them.About the Data Software Engineer RoleThe Data Software Engineer plays a crucial role in addressing the challenges that arise during the process of data value realization through software engineering.In alignment with Daangn's rapid growth, you will design data systems that will not become bottlenecks in the future. You will ensure data reliability through automated testing and system observability. Additionally, you will solve technical problems that arise as Daangn members seek to understand users through data, thereby exponentially enhancing data-informed decision-making through data products (indicator platforms, experiment platforms, etc.).The mission of the Data Value Team's engineers is to facilitate a seamless flow of high-quality data at Daangn, enabling the creation of value without bottlenecks. Discover the Journey of the Data Value Team Growing with Daangn (Google Data Webinar) Learn about Daangn's Indicator Platform, KarrotMetrics Seven Challenges Daangn Faced in Implementing DBT and Airflow Tips for Easy Modeling with DBT from Daangn's Data Engineer (2024 Data Conference) Creating a Data Map at Daangn: Building Column Level Lineage No Need to Always Fetch Everything? Daangn's MongoDB CDC Build

Join Our Team!- The Device Team is responsible for the entire product lifecycle of payment terminals, including planning, development, mass production, and operational quality.- Collaborate with Device Product Managers, Hardware Engineers, Device Software Engineers, Firmware Engineers, and Android Developers to enhance product completeness.- This position focuses on QA validation while also contributing to release quality and quality systems.Your Responsibilities:1 QA Engineering — Execute product quality validation and testing- Design and conduct functional/system tests for software integrated with hardware.- Analyze requirements and changes from a quality perspective, establishing test priorities based on risk.- Perform validations on a release basis and clearly communicate discovered issues to developers and PMs.- Evaluate and track the severity and impact of issues.2 Test Improvement — Enhance testing efficiency and quality- Automate repetitive smoke/regression tests to improve validation efficiency.- Review test coverage and continuously address any gaps.- Measure and track key quality metrics with each release, collaborating with the team to establish quality standards.- Utilize AI tools to enhance QA engineering efficiency in test design, log analysis, and report generation.3 Field Issue Support — Analyze field issue support- Analyze customer service issues and field data to identify defect patterns and root causes.- Validate issues arising in the field through reproduction testing and contribute to the improvement process.- Convert recurring field issues into test cases to broaden validation coverage.Ideal Candidate:- At least 3 years of experience as a Software QA or Test Engineer.- Proven experience designing and executing various tests, including functional and integration testing.- Ability to clearly reproduce issues and analyze their causes for effective communication.- Strong communication skills to work effectively with developers and PMs.Preferred Qualifications:- Experience in QA for embedded devices such as payment terminals, POS systems, or Android-based products.- Familiarity with test automation tools or scripting experience.- Experience in managing QA processes using issue tracking tools (e.g., Jira).- Experience operating release gates (validation before OTA distribution, quality monitoring post-distribution).Your Journey with Tossplace:- Application submission > Job interview > Cultural fit interview > Reference check > Compensation discussion > Final offer and onboarding.A Note for Future Colleagues:“You will have the opportunity to create tests that set the standard for product quality.”- Beyond just finding bugs, you will experience the full spectrum of QA engineering, from test design to quality metric management.

Role overview The Compiler team at FuriosaAI builds the software stack that enables machine learning models to run efficiently on the company’s AI accelerator hardware. This Software Engineer - Compiler (AX Engineer) role is a new position based at the Seoul headquarters. The focus is on developing and refining AI-assisted engineering workflows, identifying bottlenecks, running experiments, and building tools and guides that the team can use repeatedly. While the role is part of the Compiler team, deep compiler expertise is not required. Daily work includes code reviews, debugging, CI and testing, documentation, and project management. This position is a good fit for someone who enjoys shaping new roles and working through open-ended challenges. What you will do Identify challenges and opportunities in engineering workflows, including development, code review, debugging, CI/testing, documentation, and project delivery. Research, prototype, and benchmark AI and automation tools, such as coding agents, LLM-assisted reviews, and debugging assistants, using real team workflows. Create and maintain prompt libraries, workflow templates, and integration guides tailored to team needs. Improve CI/testing feedback and signals with the goal of reducing flaky tests and streamlining failure triage. Lead onboarding sessions and regular Q&A meetings to share knowledge about new tools. Define and track metrics like PR cycle time, review turnaround, regression triage time, and CI flakiness, iterating based on findings and team feedback. Stay current on developments in the AI tooling ecosystem and keep the team informed about relevant updates. Requirements At least 3 years of experience in software engineering. Hands-on experience with LLM-based coding tools (such as GitHub Copilot, Cursor, Claude Code, or Codex). Strong understanding of software development workflows from an engineer’s perspective. Ability to quickly evaluate new tools and provide practical guidance to the team. Preferred qualifications Bachelor’s degree in Computer Science or a related field.

About the Algorithm Team - Model Compression DivisionIt is widely recognized that LLM quantization can significantly enhance inference efficiency. However, implementing this in real-world applications presents ongoing challenges. The Model Compression Division is dedicated to developing user-friendly model compression tools that address these challenges and empower customers to maximize the efficiency of their NPU.When model compression tools incorporate hardware-specific optimizations, they can achieve greater efficiency. To meet this demand, we have developed proprietary tools equipped with optimization features tailored for our NPU, enabling the provision of an essential software stack that maximizes NPU performance.The FuriosaAI Model Compression tool is continuously evolving, with a focus on increasing automation, scalability, and reliability, leading to a growing demand for enhanced capabilities. As such, we are seeking talented software engineers with substantial software engineering experience who aspire to advance their careers as Model Compression Engineers.

Join Normal Computing | Unlock Exciting OpportunitiesAt Normal Computing, we create cutting-edge software and hardware solutions that drive technological advancements, particularly in the semiconductor sector, AI infrastructure, and the systems that shape our future. Our collaborative team spans across New York, San Francisco, Copenhagen, Seoul, and London, working together to achieve remarkable goals.Your Impact:We are on the lookout for a passionate DevOps Software Engineer to architect and implement high-performance cloud infrastructure and services. This position presents a unique chance to directly engage in pioneering AI projects within one of the most critical industries — Semiconductors. While previous experience in AI Engineering or the Semiconductor field is appreciated, it is not a prerequisite.Crafting, developing, and managing infrastructure for Normal’s innovative products, automating the development lifecycle, and ensuring system reliability within our Linux environment.Partnering with product and AI teams to establish and enforce DevOps best practices.Deploying and overseeing Normal’s product stack in client environments.Engineering and executing Continuous Integration/Continuous Deployment (CI/CD) pipelines for software and data workflows, incorporating security measures and policy compliance.Implementing best practices for logging, monitoring, and alerting, managing credentials, and ensuring adherence to regulatory standards (e.g., SOC2).Executing ongoing improvements, maintenance, and upgrades across all of Normal’s infrastructure.

Welcome to the journey of joining the Daangn team!At Daangn, we strive to create an environment where individuals can grow alongside the company's development.Our recruitment team is here to assist you in making the moment of collaborating with amazing colleagues a joyful reality. Introducing the Advertising TeamThe Advertising Team is responsible for the core advertising services that drive Daangn's revenue model. We operate an advertising platform targeting Daangn's 19 million monthly active users (MAU), providing effective advertising opportunities for both small businesses and large enterprises through localized advertising solutions. Our ongoing improvements can significantly impact advertisers' performance and Daangn's revenue, as we continuously evolve our services through data-driven decision-making and constant experimentation. The Advertising Team plays a pivotal role in balancing user experience with advertising effectiveness, ensuring we deliver useful and relevant ads while preserving Daangn's core values of community communication and transaction experiences. We develop various advertising formats and targeting options, leveraging machine learning technology to optimize advertising performance. Additionally, the team participates in crucial decision-making processes from an organizational perspective. Since ads are displayed across multiple app surfaces, we must consider not only ad performance but also the overall health of the service and user satisfaction. Therefore, we adopt a comprehensive approach that considers the needs of advertisers, user experience, and our business objectives. Within the Advertising Team, you'll engage in diverse tasks such as developing new advertising products, enhancing the advertising platform, analyzing and optimizing ad performance, and managing advertiser relationships. If you want to make an impact in a rapidly evolving advertising market grounded in innovative ideas and analytical thinking, the Advertising Team is the perfect choice for you. Learn more about the Daangn Advertising Team!Your ResponsibilitiesGrow into an expert handling large-scale advertising traffic.Daangn Market is a massive platform with 19 million MAU. Operating an advertising system reliably in this large-scale environment presents both challenges and opportunities. By joining the Advertising Team, you will work with systems that handle hundreds of millions of ad requests daily. You will learn how to respond to various issues that arise, enhancing your skills in building high-availability systems and practical problem-solving. Specifically, in the Serving Team, you will work with a Real-Time Bidding (RTB) system that demands millisecond-level response times, allowing you to acquire skills in designing and implementing ultra-low latency distributed systems. In the DSP Team, you will develop performance optimization and scalable architecture for processing large volumes of advertising data.Gain experience in data-driven decision-making and optimization.As a developer in the Advertising Team, you will handle vast amounts of user and ad performance data. You will have the opportunity to build and optimize pipelines for efficiently collecting, processing, and analyzing this data, enhancing your skills in big data processing technologies, data warehousing, and real-time data streaming. Additionally, you will gain hands-on experience applying machine learning models to real advertising systems, utilizing AI/ML technologies in areas such as user targeting, ad performance prediction, and real-time bid price determination to continuously improve the advertising system.Experience solving technical challenges in a continuously growing service.Daangn is in a constant state of growth. As such, the advertising system is continually expanding, with new features being added. You will experience evolving the system to accommodate various changes such as new ad product launches, expanded targeting options, and improved ad effectiveness measurement. For example, in the DSP Team, you'll be developing logic for new ad formats, integrating new data sources, and in the Serving Team, implementing new ad display methods, tackling various challenges that arise. Through this process, you’ll be able to learn about and apply the latest technological trends, significantly enhancing your technical capabilities.Design and operate microservices architecture directly.The Advertising Team adopts a microservices architecture, allowing you to design and implement independent microservices across different domains such as DSP, DMP, and recommendation systems. This experience will enable you to apply core concepts of microservices architecture, including inter-service communication, API design, and distributed transaction handling.

Welcome to the Daangn Team Journey!At Daangn, we are committed to creating an environment where individuals can grow alongside the company's success.Our recruitment team is here to help you engage in meaningful discussions with wonderful colleagues. Introducing the Notifications TeamThe Notifications Team plays a crucial role in shaping the user notification experience at Daangn. Notifications serve as the most powerful channel to reconnect users with the app outside of it. This direct interaction on the user’s phone lock screen can influence the behavior of our 20 million monthly active users. We are not just a team that sends notifications; we design the moments that bring users back to Daangn and guide them to their next actions.The notification experience goes beyond a single push notification. It can lead users directly to chatrooms or posts, and help them rediscover missed interactions within the app's notification center. While push notifications initiate actions, the notification center serves as a space to reconnect relationships and context. Our team collaborates to design these two experiences, fostering connections both inside and outside of Daangn.Daangn encompasses more than 15 services at different stages of growth, including second-hand trading, part-time jobs, real estate, and community forums. The Notifications Team develops a comprehensive experience that ensures notifications reach users meaningfully and translate seamlessly into actions.We are currently moving beyond traditional formulas to discover new strategies for Daangn's next growth phase. In our small team, engineers contribute to defining problems, proposing directions, and designing experiments that shape the future of our products.Your ResponsibilitiesRedesign the notification center to enable users to quickly grasp and act on notifications from over 15 services, focusing on list structure, grouping, read/unread status, personalization, and filtering.Implement seamless entry experiences for users who tap on push notifications, guiding them to appropriate contexts like chatrooms, posts, or specific service pages.Develop the frontend for tools that precisely target and manage notifications based on user segments, banners, and event flows, creating a foundation for faster experimentation.Collaboratively build an experimental environment to measure click-through rates, conversion rates, and incremental effects, enabling rapid A/B testing.Work closely with PMs and designers to provide input on product direction based on technical feasibility and constraints.We Are Looking ForIndividuals with over 3 years of frontend development experience.Experience in developing mobile webview applications.A strong commitment to delivering high-quality user experiences.Ability to understand product goals and context, and to collaboratively explore better solutions beyond just implementation.Flexibility to adapt in a fast-paced environment requiring rapid experimentation and iteration.Additional Preferred QualificationsExperience developing frontends for user communication channels such as push notifications, in-app messages, and notification centers.Familiarity with building A/B testing infrastructure or experience in experimental development cycles.Experience utilizing design systems or component design.Experience building platform frontends that integrate with various services.Experience in performance optimization, loading strategies, and list rendering in large-scale user environments.Additional InformationFor full-time positions, there is a 3-month probation period.We prioritize the hiring of individuals with disabilities and veterans as per the 'Act on the Promotion of Employment of Persons with Disabilities' and 'Act on the Honorable Treatment and Support of Veterans'.Application Process1. Document screening → 2. Video interview (live coding test) → 3. Job interview → 4. Culture fit interview and reference check → 5. Negotiation → 6. Final acceptance and onboarding

About HopaeAt Hopae, we are dedicated to creating the most reliable digital identity platform in the world—one that is private, secure, and designed for real-world applications.We believe that individuals should have control over their own identities, free from outdated systems and centralized control.Our innovative technology facilitates instant, privacy-focused verification for users and businesses globally, spanning sectors such as fintech, credentials, supply chain, and gaming.Supported by leading global investors, Hopae operates not only in Seoul but also in Paris and San Francisco, harnessing a diverse team of talent from over 10 nationalities.We prioritize speed, global thinking, and the development of products that will shape the future of identity. Why You’ll Love Working HereGlobal DNA: Collaborate with outstanding professionals across Seoul, Paris, and San Francisco.High Impact: Contribute to technology that is redefining trust and identity on a global scale.Ownership Culture: Experience a work environment with no micromanagement—where trust and accountability are paramount.Elite Standards: Thrive in a fast-paced environment where learning and growth are encouraged alongside world-class colleagues.Inclusive & Respectful: Join a team with over 10 nationalities, bringing diverse perspectives united by a common vision.Growth Mindset: Benefit from mentorship opportunities, leadership visibility, and lifelong learning. Your ResponsibilitiesAs a Backend Engineer, your coding expertise will underpin the security and connectivity of digital identities for users around the globe.Design and Develop Global Authentication Platform: Take charge of building and maintaining the core backend systems and high-availability infrastructure for the hConnect platform.Integrate with Diverse Identity Systems: Create and enhance modules that connect with national electronic ID (eID) systems and various identity services globally.Build Scalable Systems: Ensure system stability while progressively enhancing capabilities to accommodate future traffic growth and feature expansions.Design Flexible and Scalable APIs: Develop and maintain robust APIs for seamless integration with both internal services and external partners.Foster a Strong Code Culture: Collaborate with your team to cultivate a culture of quality code.

Join our innovative team at daangn as a Backend Software Engineer, where you'll be responsible for developing robust backend systems that power our lessons and tutoring services. You will work with cutting-edge technologies to enhance user experience and drive our mission forward.

Join daangn as a Backend Software Engineer and be part of a dynamic team dedicated to revolutionizing the commerce landscape. In this role, you will work on innovative backend systems that enhance user experience and operational efficiency.

Role OverviewJoin Furiosa AI as a Software Engineer specializing in Drivers and Runtime for Windows. In this role, you will be a key player in developing vital components of our AI software stack tailored for Windows environments.Key ResponsibilitiesLead the development of Drivers and Runtime systems that are integral to our AI software on Windows.Collaborate closely with Product Managers and Hardware/Platform developers to ensure seamless integration.Implement functionality for transferring and receiving models, data, and inference results to and from hardware.Develop features for monitoring hardware status, including temperature and error management.Oversee the abstraction of hardware from a cloud platform software perspective.QualificationsMinimum RequirementsBachelor's degree in Computer Science or a related field.Proficiency in C/C++ programming.Knowledge of Windows kernel drivers and system programming.Strong interest in operating systems and hardware architecture.Excellent communication skills.Preferred QualificationsExperience in Windows system programming or driver development.Familiarity with WinDbg and Win32 API.Experience with reverse engineering.

About AirwallexAirwallex is a pioneering unified payments and financial platform designed for global enterprises. With our unique blend of proprietary infrastructure and software, we empower more than 200,000 businesses globally—including industry leaders such as Brex, Rippling, Navan, Qantas, SHEIN, and others—with fully integrated solutions for managing business accounts, payments, spend management, treasury, and embedded finance on a global scale.Founded in Melbourne, we take pride in our diverse team of over 2,000 innovative professionals across 26 offices worldwide. Valued at $8 billion and supported by renowned investors like T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, Airwallex is at the forefront of developing the future of global payments and financial services. If you’re ready to embark on the most ambitious journey of your career, we invite you to join us.