Payment Software Engineer jobs in Seoul – Browse 352 openings on RoboApply Jobs

Payment Software Engineer jobs in Seoul

Open roles matching “Payment Software Engineer” with location signals for Seoul. 352 active listings on RoboApply Jobs.

352 jobs found

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companyToss logo
Full-time|On-site|Seoul

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.

Mar 23, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

# Company Overview - The Toss Payments team aims to revolutionize the electronic payment market in South Korea. With the expansion of online and mobile commerce, Toss Payments seeks to provide innovative payment solutions that benefit both businesses and consumers through technological and business model advancements. # Key Responsibilities - Continuously enhance the Stability, Scalability, Availability, and Latency of our systems.- Build effective monitoring systems to proactively detect issues and respond swiftly.- Resolve incidents and design preventative solutions for future occurrences.- Establish and execute performance testing environments to support service growth.- Experiment with and evaluate the adoption of open-source products. # Qualifications - Expertise in Java-based technologies.- Solid understanding of software engineering principles.- Deep knowledge of Linux and network systems.- Comprehensive understanding of Microservices Architecture (MSA).- Enjoy working in mission-critical service environments with a strong sense of responsibility to build robust services.- Adapt quickly to new technologies and embrace change for continuous personal and professional growth. # Technologies at Toss Payments - Java Spring Framework, JPA/Hibernate, GradleJenkins, Git, Docker, Kubernetes + IstioKafka, Elastic, InfluxData, Grafana, MemcachedEJB, Pro C, AnyLink, Control M, Weblogic, Oracle # Journey to Join Toss Payments- Application Submission > Technical Interview > Cultural Fit Interview > Salary Negotiation > Final Acceptance and Onboarding # Industry Insights- The Future of the Payment Industry, Created Anew by Toss

Mar 9, 2026
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companyCoupang, Inc. logo
Full-time|On-site|Seoul, South Korea

Coupang Pay, a subsidiary of Coupang Corporation, offers a tailored electronic payment gateway service (PG) to meet the growing needs of Coupang customers. Our focus is on providing innovative payment and financial service solutions to everyone using Coupang's platforms, from customers purchasing items on coupang.com and Coupang Eats to sellers utilizing Coupang's open market and Coupang Eats merchants. With extensive experience in the fintech sector, our team is dedicated to transforming every aspect of the payment experience for our customers. Are you interested in learning more about Coupang Pay? Join us on this exciting journey!Key ResponsibilitiesCoupang Pay aims to make Coupang the most convenient online payment site. As a Development Manager in the Product Engineering team, responsible for various services offered by Coupang Pay, you will participate in developing exceptional fintech services and ensure higher quality payment services through code reviews. You will also play a crucial role in delivering and enhancing the country’s first one-touch payment system, 'Coupay.' Collaborating with the accounting, finance, and fintech development teams, you will be actively involved in developing and operating the fintech back-office to provide customers with a faster and more convenient payment experience.

Jan 7, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

Join our innovative team at Toss Payments as a Data Engineer, where you'll play a crucial role in building and optimizing our data infrastructure. You will work with cutting-edge technologies, collaborating with cross-functional teams to drive data-driven insights and solutions. Your expertise will help us enhance our payment systems and improve user experiences.

Mar 9, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

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.

Mar 9, 2026
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companyToss Careers logo
Full-time|On-site|Seoul

Join Our Innovative Team The Device Software Engineer at Tossplace is part of the Device Team, collaborating closely with the Device Product Manager, Android Developers, Hardware Engineers, Firmware Engineers, and Quality Engineers. The Device Team is responsible for overseeing the entire development process of payment terminals used in offline payment services, from initial design to mass production and market quality assurance. We aim to create devices that operate reliably in real-world retail environments, going beyond simple software development. In this role, you will troubleshoot and resolve various issues arising in an Android-based software and hardware integration environment, enhancing the overall product quality. Your Responsibilities Develop and enhance system software for Android-based payment terminals. Analyze and resolve issues across various layers, including applications, frameworks, and HAL. Debug and improve performance and stability issues encountered in live device environments. Collaborate with hardware and firmware engineers to understand device operations and troubleshoot problems. Participate in the entire product development lifecycle, from initial development to addressing quality issues post-mass production. Utilize log analysis and create reproducible environments to identify and resolve root causes of problems. When necessary, analyze and improve Android internal operations (AOSP, system services, etc.). Who We Are Looking For Experience in developing Android-based software (applications/frameworks) is essential. We seek individuals who enjoy digging deep to identify and resolve issues. A strong interest in software functioning on actual devices is highly desired. What You Will Gain Experience extending beyond Android apps to frameworks and HAL. Develop skills in resolving real-world hardware issues. Gain insights into the entire product lifecycle, from development to post-production quality management. Preferred Experience and Interests Understanding or interest in Android Framework or AOSP architecture is beneficial. Experience in system-level debugging (logs, crashes, ANRs, etc.) is a plus. Basic understanding of C/C++ or native areas is advantageous. Interest in performance optimization (CPU, memory, threads, etc.) is welcomed. A keen interest in embedded systems or device development is preferred. Experience dealing with hardware-related issues will be an asset.

Apr 13, 2026
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companyCoupang logo
Full-time|On-site|Seoul, South Korea

Join Coupang as a Senior Manager in Backend Engineering!We are seeking an experienced leader to manage and enhance our payment systems. You will play a crucial role in developing and optimizing payment solutions that serve millions of customers.Key Responsibilities:Lead backend engineering teams to build robust payment infrastructures.Collaborate with cross-functional teams to streamline payment processes.Ensure high availability and scalability of payment systems.Qualifications:Proven experience in backend engineering, preferably in payment systems.Strong leadership and team management skills.Proficiency in programming languages such as Java, Python, or Node.js.Excellent problem-solving and analytical skills.How to Apply: Please complete the attached Internal Transfer Request Form and submit it using your Coupang email account.

Mar 13, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

Join Toss Payments! Toss Payments strives to understand business challenges and inefficiencies, aiming to provide comprehensive solutions from technology to operations. We are committed to delivering an effortless and convenient service experience for consumers while ensuring a focused environment for merchants. We operate under the principles of autonomy and responsibility, with a strong culture of mutual trust, all aimed at innovating the electronic payment market. We are looking for colleagues who are eager to help shape the future of the payment industry! About Your Future Team The Legal Counsel position is part of the Legal & Compliance team at Toss Payments. This team guides the organization in navigating legal risks, ensuring that we safely reach our goals by identifying, mitigating, or circumventing these risks. Our team comprises members with diverse backgrounds from financial holding companies, securities firms, IT companies, and major law firms, fostering positive synergy. Rather than joining a fully formed team, you will have the opportunity to play a pivotal role in shaping the team from its early stages. We are looking for an individual to take on responsibilities following our recruitment in 2023. Your Responsibilities Review contractual structures related to transactions between financial institutions and merchants, such as banks and credit card companies. Support responses to various lawsuits, disputes, and complaints that may arise during business operations. Assess compliance risks related to electronic payment businesses, electronic financial operations, and new business initiatives, conducting legal reviews and monitoring compliance with laws and internal regulations. Respond to data requests and inquiries from regulatory bodies such as the Financial Supervisory Service, facilitating smooth communication with supervisory agencies and handling reporting obligations as required by relevant laws. Contribute to Toss Payments' growth by examining payment business models (PG, VAN) and collaborating with team members to ensure compliance with requirements. Provide legal advisory services for new businesses and the overall operation of services, understanding Toss Payments' business structure. Draft and review contracts necessary for various operations to support achieving business objectives. Who We’re Looking For A qualified candidate who has at least 3 years of experience as a corporate lawyer or in-house counsel. Experience reviewing fintech and financial regulations, such as the Electronic Financial Transactions Act, Specialized Credit Finance Business Act, and related laws. Background as in-house counsel at IT/fintech firms or experience in corporate legal advisory work at law firms specializing in financial companies. Experience dealing with regulatory agencies and engaging in public relations with authorities like the Financial Supervisory Service and Financial Services Commission is preferred. Desirable qualifications include expertise in IT, information processing systems, information security, or related academic backgrounds. Experience with new business evaluations, such as regulatory sandboxes or acquiring new licenses, is a plus.

Mar 9, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

Welcome to Toss PaymentsToss Payments is committed to understanding the challenges and inefficiencies businesses face, aiming to provide comprehensive solutions across technology and operations. Our goal is to deliver a seamless and convenient service experience for consumers while creating an environment where merchants can focus solely on their business.We work under the principle of 'innovating the electronic payment market', fostering a culture of mutual trust and collaboration. We are looking for colleagues who are eager to help shape the future of the payment industry!About the Team You Will JoinThe Frontend Developer position at Toss Payments is part of both the product team and the frontend chapter. Within the product team, you will collaborate with Product Managers, Product Designers, Server Developers, and fellow Frontend Developers to tackle complex projects in the payment domain, creating sustainable and high-quality services over time. You will have the opportunity to refine and specify the products that leverage your strengths during the interview process.The frontend chapter operates like a cohesive team! We hold regular chapter meetings and share new technology topics or development insights during 'Lightning Talks.' Participate in mob programming, interface design reviews, and various challenges that encourage continuous growth!This year, the frontend chapter aims to scale significantly to support the smooth operation of Toss's growing business.What We Have Accomplished So FarWe developed the payment widget to enable anyone to easily create their desired payment experience after thorough consideration.We designed and applied an intuitive and scalable payment SDK architecture that meets numerous requirements.We are enhancing dashboards and admin products to effectively address the complex policies and management elements from merchant contracts to payments and settlements.Beyond product development, we take the lead in reducing various inefficiencies within the company through the establishment of testing automation platforms, design standardization, and sharing development capabilities.Future Challenges We Want to Tackle TogetherWe look forward to crafting products that flexibly accommodate complex requirements. We are already applying technical challenges to effectively manage complexity in the payment domain while maintaining scalability. However, to drive these goals forward, we need more teammates to support us.We aim to completely eliminate accumulated legacy.The long-standing electronic payment market has not been without its technical debt. We are seeking individuals who can analyze areas that are hard to control or manage, rapidly reconfigure them with new technologies, and help create an environment where the business can grow swiftly.Who We Want to Work WithIndividuals who place high value on developer experience.Those who understand and practice the importance of automated testing.Enthusiasts of new technologies and various platforms.Individuals keenly interested in programming languages.Those who find joy in simplifying complex business challenges.Experience We ValueExperience with static type analysis using TypeScript or Flow is a plus.Experience in server-side rendering (SSR) and web app development within mobile applications is a plus.Experience in UI development considering responsive design, web accessibility, and web standards is a plus.Experience in test and deployment automation is a plus.Experience in configuring the operational infrastructure of web services or creating product monitoring systems is a plus.

Mar 9, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

Join our innovative team at Toss Payments as a Technical Product Manager, where you will be a vital part of our product organization.Lead a team of server developers to design and enhance the foundational elements of our payment systems.Collaborate with makers (designers, frontend, and server developers) to create products tailored for payments and merchants.During the interview process, we will assess your strengths and experiences to match you with the right product or team upon successful hiring.Our goal is to create a robust and flexible system that can swiftly adapt to new requirements while enhancing the financial experience of our customers.Your ResponsibilitiesMaintain clear domain boundaries to ensure the independence of complex payment systems as they evolve.Evaluate the design and implementation of the system and suggest better alternatives if necessary.Define various technical challenges the team needs to address (development of new features, improvement of technical debt) and prioritize them based on impact.Lead technical communications among partners and stakeholders.Collaborate with makers to resolve technical issues that may arise with the products and analyze root causes.Who We’re Looking ForA candidate with proven experience in designing and implementing complex systems that are actively serviced.Experience in making gradual improvements through agile processes is a plus.Ability to succinctly organize various requirements and the current state of the team is essential.Experience leading projects with complex technical products, especially those with numerous dependencies, is desirable.Experience diagnosing and resolving chronic technical issues to enable greater product growth is a plus.Experience in leading server developers is advantageous.Resume RecommendationsIf you have experience addressing technical debt, please share the process from problem definition to strategy formulation, execution, and results.Share your experiences leading teams of multiple developers, including challenges and solutions encountered during the process.Journey to Joining TossApplication submission > Job interview > Cultural fit interview > Reference check > Compensation negotiation > Final acceptance and onboarding.You will have the opportunity to have a coffee chat with potential teammates during the process.We provide preference in hiring for individuals with disabilities and veterans in accordance with relevant laws.“You will have the opportunity to solve the most challenging technical problems alongside outstanding developers.”Toss Payments operates and improves a payment system that has been in place for over 20 years. We are transitioning away from legacy systems to a flexible system capable of rapidly resolving any issues. We seek a top-level Technical Product Manager to join us on our journey to overcome longstanding challenges in payment systems and evolve into a technology-driven global payment company. Our exceptional team of developers, who conquered significant technical debt in just six months, awaits your arrival.“This is an opportunity to grow by viewing products from a holistic perspective of technology and business.”As our service scales, the importance of developer skills increases, but many decisions must consider the business context. We need someone who can view products from an overall perspective. The TPM plays this crucial role, eliminating various blockers faced by developers and ensuring the product's direction is technically feasible while evaluating opportunity costs and reviewing technical connections internally and externally. This is a fantastic position to grow by viewing the product and organization from a comprehensive perspective that encompasses both technology and business.

Mar 9, 2026
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companyzoyi logo
Full-time|On-site|Seoul

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.

Aug 5, 2025
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companyToss Payments logo
Full-time|On-site|Seoul

# Join Our Team- As part of the Toss Payments team, you will navigate legal risks in the payment industry, providing guidance to ensure safe and secure achievement of our team's objectives by identifying and mitigating these risks.- You will address various legal matters related to corporate restructuring and other legal issues within the company, ensuring ongoing growth by reviewing and resolving necessary legal concerns.- In the innovative journey of Toss Payments, where we venture into uncharted territories and offer unique services, you will have the opportunity to engage in forward-thinking and groundbreaking legal reviews that are not typically encountered elsewhere.- We strive for a proactive legal team that collaborates from the outset with service organizations, allowing you to experience the growth and development of the company firsthand, unlike traditional risk management roles.- Our legal team comprises members with diverse backgrounds from financial holdings, securities firms, IT companies, law firms, and government bodies, fostering synergy through varied experiences. As Toss Payments is a relatively new organization, you can contribute to building the legal team from its inception rather than merely joining an established one.

Mar 9, 2026
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company
Full-time|On-site|Seoul HQ

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.

Nov 20, 2025
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companydaangn logo
Full-time|On-site|SEOUL

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

Mar 16, 2026
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companyTosscareers logo
Full-time|On-site|Seoul

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.

Apr 13, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

Join Toss Payments as a Marketing Manager and play a pivotal role in shaping our marketing strategies. You will collaborate with cross-functional teams to design and implement comprehensive marketing campaigns aimed at expanding our market presence. Your creativity and analytical skills will drive innovative solutions that resonate with our target audience.

Apr 9, 2026
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company
Full-time|On-site|Seoul HQ

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.

Apr 23, 2026
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company
Full-time|On-site|Seoul HQ

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.

Oct 3, 2025
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companyNormal Computing logo
DevOps Software Engineer

Normal Computing

Full-time|On-site|Seoul

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.

Jan 28, 2026
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companyToss Payments logo
Full-time|On-site|Seoul

# Introducing Toss Payments Toss Payments is dedicated to innovating the electronic payment market, providing merchants with comprehensive solutions from technology to operations, while offering consumers a seamless and user-friendly payment experience. Visit our introduction page: https://introducetosspayments.oopy.io/ # About the Team You'll Join The Account Manager role is part of the Key Account Growth Team within the Toss Payments Sales Tribe. This team is responsible for sales and partnerships related to Toss Payments' electronic payment services, focusing on existing clients, partners, and international payment companies. We aim to grow Toss Payments' business by introducing core payment products, discovering and expanding partnership channels, and enhancing integration of international payment products. # Your Role and Responsibilities Lead, manage, and take responsibility for the entire sales process, including introduction, negotiation, and onboarding of core payment products for existing clients. Engage directly with key decision-makers, from operational staff to executives, during the sales process, driving proposals and decision-making for payment product integration. # Who We Want to Join Us 5+ years of experience in cross-selling and upselling to large and small clients, preferably in a payment gateway (PG) company. Strong problem-definition skills to address various challenges that arise during the client sales process, coupled with flexible thinking to find solutions. Ability to comprehend and clearly explain complex products, policies, and processes. Proven persuasive communication skills, with a history of successful negotiations with clients and internal stakeholders. Experience in technology-based B2B sales is a plus, but not mandatory. # Application Tips Detail your experiences leading client sales and the quantifiable results achieved during that process. If you have experience creating proposals and negotiating with clients, please elaborate on those experiences. # Journey to Join Toss Payments Application submission > Job interview > Cultural fit interview > Reference check > Offer negotiation > Final acceptance and onboarding. A Message for Future Colleagues “Finding growth opportunities through sales and achieving significant success through negotiation and problem-solving is incredibly rewarding.” Having transitioned from a global company to Toss Payments, I now have the autonomy to define my sales deals and tackle challenges without waiting for approvals. If you're looking to find growth opportunities through sales and create significant successes through negotiation and problem-solving, apply for the Account Manager position now!

Mar 17, 2026

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