Company Introduction

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did I ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce.

We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been since our inception. We are all entrepreneurs surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.

Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.

Role Overview

The Global Operations Tech (GOT) organization is responsible for the systems that enable Coupang to reliably deliver to customers within hours of orders being placed. GOT is on a mission to innovate logistics by building an efficient delivery network at breakthrough scale and speeds. As a Senior Staff Backend Engineer in GOT, you will leverage advanced algorithms to improve Coupang’s customer experience by ensuring ultra-fast deliveries are on time even during the busiest times of the year. We are looking for a Scientist that can drive the direction of technology across multiple teams, leverage deep industry knowledge and use statistical and machine learning techniques to bring value to customers. The ideal candidates are pragmatic, resourceful, and embrace challenges that are seemingly impossible. The ideal candidates also have rich industry experience and a track record of delivering highly impactful projects.

What You Will Do

• Lead and drive architecture design of Fulfillment Technologies for scale, future extensibility, and reliability
• Envision and drive alignment with stakeholders of the appropriate roadmap and future direction of technology for Global Operations Technology org.
• Navigate and alleviate technical obstacles and blockers at the organizational level
• Decompose complex problems into simple, straightforward solutions, providing mechanisms for the teams to prioritize ruthlessly and “move with urgency.”
• Write code when necessary to lead by example and help with high-priority projects
• Proactively identify opportunities in both business and technology
• Review, advise, and carry out the adoption of new technology (both open-source and commercial) that are useful in achieving business objectives
• Recruit and develop world-class engineering talent
• Drive development of automation and robotics initiatives

Basic Qualifications

• 15+ years of experience in developing and operating backend services and web applications
• Solid track record of delivering large and complex systems with significant business impact
• Experience of designing and developing large-scale distributed systems and architectures
• Broad and deep understanding of key technologies in storage, data processing, and serving
• Capable of object-oriented design and development
• Strong familiarity developing with Java and the Spring Framework
• Service development and operational experience in an AWS environment
• Experience driving improvements in code quality

Recruitment Process and Others

Recruitment Process

• Application Review - 1st Interview - 2nd Interview - Offer
• The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
• Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

Details to Consider

• This job posting may be closed prior to the stated end date for application if all openings are filled.
• Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
• Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.
• Job titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer.
• Hiring may be restricted in case the legal qualifications required for hiring and work performance is not met.
• This is a full-time regular position and includes 12 weeks of probation period; provided, however, the probationary period may be either skipped, shortened or extended if necessary for business purposes

Privacy Notice

• Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below.
• https://privacy.coupang.com/en/land/jobs/

Document Return Policy

1. This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.
2. A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.
3. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit It by email (recruitingops@coupang.com). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.
4. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.
5. The above paragraphs 1 - 4 shall only apply when the labor-related laws of Korea govern the application. They are otherwise not applicable.

Job's mission

As a key member of our Global Supplier Development team, this role supports the organization's objective to strengthen supplier capability, elevate design and manufacturing performance, and ensure long-term supply resilience across our global network. The mission of the team is to proactively build supplier maturity, drive continuous improvement, and align supplier capability growth with mid- and long-term category strategies to support product quality, operational excellence, and New Product Introduction (NPI) readiness.

What you will be working on

• Assess supplier quality and technology gaps, and execute plans to address them.
• Review and influence Design Engineering early in design phase to achieve target costs and DFx. Identify areas for cost down during design phase plus manufacturing methods and eliminate waste.
• Evaluate supplier processes and risks; collaborate to improve capabilities through lean supplier development methods (i.e. six sigma) and implement mitigation plans.
• Apply engineering and material science expertise with suppliers to boost capacity, product quality, yield and reduce costs.
• Partner with Category leaders to drive long-term category strategies to support aggressive production scaling.
• Align development efforts with long-term category strategies and develop partners within the suppliers.
• Conduct on-site supplier assessments (capabilities, MSA, PCS/SPCE, etc) and identify gaps during selection.
• Implement improvement plans with suppliers to ensure readiness and support NPI.
• Coordinate globally with Business/Key Product Unit Engineering teams to meet end-use specifications.
• Advance manufacturing capabilities, DFMEA / FMEA, and implement Process Control Systems, PFMEA, at key sites.
• Support statistical PCS / SPC (lean six sigma) data analysis for internal and external stakeholders.
• Perform root cause failure analysis and report findings to relevant teams.
• Lead supplier engagement, support surveillance audits, and qualification activities globally.
• Independently manage supplier improvement projects, including onboarding training and qualification.
• Oversee multiple projects to resolve issues and enhance product performance, reliability, and efficiency.
• Lead / mentor group of Supplier Development team on best practices and develop skillsets to support group growth and expansion

What we are looking for

• MS, or PhD preferred, in Engineering, Science, or related technical field (Engineering, Physics, Material Sciences) relevant to semiconductor equipment, or proven expertise.
• At least 10 years of experience or significant expertise in engineering, designing, and manufacturing of complex mechanical systems.
• Experience in the semiconductor capital equipment industry with technical background in semiconductor manufacturing technologies required.
• Strong English communication skills for complex technical topics.
• Effective collaboration across regions, cultures, and disciplines.
• Proven Lead Engineer in matrix environments and ability to work independently while managing a team.
• Proficient in project and time management skills required
• Drive business process efficiencies and improvements with key internal stakeholders

Candidate should have knowledge of the following tools, but will be trained to more advanced levels in:

• Applied Operational and Engineering Statistical Methods
• Process Control Systems (PCS) and Statistical Process Control (SPC)
• FMEA include Design FMEA (DFMEA) and Process FMEA (PFMEA)
• Structured Problem Solving (8D) and Effective Problem Solving (EPS)
• Operational Excellence tools including Failure Analysis, Lean Manufacturing, Value Stream Mapping
• Project Management, Team Management, Escalation Management and Communication Techniques across a broad range of business escalation types, (Customer, Supplier, Technical, Manufacturing, etc.)
• Should costing estimate modeling (aPriori)

직무 개요

사이버 보안 서비스 딜리버리 엔지니어는 고객사를 대상으로 자사의 보안 솔루션을 지원하는 핵심 기술 직무입니다. 가치 증명(POV) 및 개념 증명(POC) 시연을 통해 솔루션의 작동 방식과 이점을 고객에게 제시하는 역할을 수행합니다. 또한, 한국의 보안 컴플라이언스(규제 준수) 관련 업무를 담당하여, 고객사가 개인정보 보호법(PIPA) 등의 규정을 이해하고 필요한 점검을 통과할 수 있도록 지원합니다. 고객과 직접 소통하며 솔루션 구축 및 조정, 시스템 상태 점검, 기술 가이드를 제공함으로써 원활한 서비스와 명확한 커뮤니케이션을 바탕으로 강력한 고객 관계를 구축하는 데 기여합니다.

주요 역할 및 책임

1. 기술 서비스 딜리버리 및 검증

• 사이버 보안 솔루션의 배포 및 구성을 주도하며, 고객 환경에 원활하게 통합되도록 보장합니다.

• 가치 증명(POV) 및 개념 증명(POC) 프로젝트를 수행하여 자사 솔루션의 효과와 실질적인 이점을 고객에게 입증합니다.

• 배포된 보안 솔루션에 대한 심층적인 기술 지원 및 트러블슈팅을 제공하며, 복잡한 문제를 효율적으로 해결합니다.

• 사용자, 네트워크 및 클라우드 보호를 위한 빈틈없는 사이버 보안 솔루션을 설계합니다.

• 구현된 솔루션에 대한 아키텍처 설계서 및 운영 가이드를 포함한 기술 문서를 작성합니다.

2. 고객 협력 및 컴플라이언스 지원

• 정기적으로 고객과 소통하여 보안 환경, 목표 및 변화하는 요구사항을 파악합니다.

• 보안 모범 사례 및 기술 도입에 관한 신뢰할 수 있는 고문(Trusted Advisor) 역할을 수행하며 강력한 고객 관계를 구축합니다.

• 법규 및 컴플라이언스 요구사항을 고려하여 상세 분석 및 리스크 평가를 수행합니다.

3. 솔루션 설계 및 최적화

• 고객의 니즈에 맞춤화되고 기존 환경과 통합된 매니지드 서비스 및 전문 서비스를 포함하는 엔드 투 엔드(End-to-End) 사이버 보안 솔루션을 능숙하게 설계합니다.

• 내부 팀과 협력하여 제안된 솔루션의 실현 가능성과 확장성을 확인하고, 회사의 기술 역량과 일치시키는지 검토합니다.

• 솔루션 문서, 아키텍처 다이어그램 및 컴플라이언스 프레임워크 요약 가이드라인을 작성합니다.

4. 기술 지식 및 역량 개발

• 보안 기술 트렌드, 신종 위협, 최신 사이버 보안 및 네트워크 기술에 대한 지식을 최신 상태로 유지합니다.

• 경쟁사 보안 제품을 연구 및 분석하여 차별화 요소를 파악하고 자사 솔루션을 효과적으로 포지셔닝합니다.

기본 자격 요건

• 컴퓨터 과학, 사이버 보안, 정보 기술 또는 관련 분야 학사 학위 소지자

• 사이버 보안 또는 관련 IT 보안 분야에서 최소 3년 이상의 경력

• 체계적인 보안 보고서 작성 및 재사용 가능한 보고서 템플릿 제작 역량

• 보안 솔루션 및 기술을 고객에게 명확하고 전문적으로 설명할 수 있는 능력, POC/POV 수행 능력

• 클라우드 환경 및 클라우드 보안 관련 업무 경험 (가산점 요인)

• 기초적인 영어 커뮤니케이션 가능 (구어 및 문어)

우대 사항

• 전문적/기술적 환경에서의 능숙한 영어 커뮤니케이션 능력

• 주요 보안 벤더 및 제품(예: Cisco, Palo Alto, Fortinet, Zscaler/Netskope, CrowdStrike, Splunk 등) 경험

• ISMS 또는 ISMS-P 컴플라이언스 프로젝트 실무 경험

• CPPG 또는 기타 보안/개인정보 보호 관련 자격증 보유자

• 네트워크 보안, 클라우드 보안(AWS, Azure, GCP), 데이터 보안 및 글로벌 컴플라이언스 표준(ISO 27001, NIST, GDPR, HIPAA 등)에 대한 지식 보유

Position summary:

The Service Delivery Engineer for Cybersecurity is a key technical role, focused on supporting our cybersecurity solutions for clients. This job also involves showing clients how our offerings work and what benefits they bring through Proof of Value (POV) and Proof of Concept (POC) demonstrations. One other role is helping with Korea’s security compliance. You'll help clients understand rules like South Korea's Personal Information Protection Act (PIPA) and support them in passing necessary checks. You'll work directly with clients to set up and adjust solutions, check system health, and provide technical guidance. This helps build strong client relationships with good service and clear communication.

Key Roles & Responsibilities

Technical Service Delivery & Validation:

• Lead the deployment and configuration of cybersecurity solutions, ensuring seamless integration into client environments.
• Conduct Proof of Value (POV) and Proof of Concept (POC) engagements to demonstrate the effectiveness and tangible benefits of our solutions to clients.
• Provide in-depth technical support and troubleshooting for deployed cybersecurity solutions, resolving complex issues efficiently.
• Design cybersecurity solutions for user, network, and cloud protection with no room for error.
• Develop technical documentation, including architecture design and operational guides, for implemented solutions.

Customer Engagement & Compliance Support:

• Engage regularly with clients to understand their security landscape, objectives, and evolving requirements. 
• Serve as a trusted advisor for security best practices and technology adoption, building strong client relationships. 
• Perform detailed analysis and risk assessments, considering regulatory and compliance requirements. 

Solution Design & Optimization: 

• Proficiently design end-to-end cybersecurity solutions, including managed and professional services, tailored to customer needs and integrated with existing environments. 
• Collaborate with internal teams to ensure proposed solutions are feasible, scalable, and align with the company's technical capabilities. 
• Prepare solution documentation, architecture diagrams, and compliance framework summary guidelines as required. 

Technical Knowledge & Development: 

• Maintain up-to-date knowledge of security technology trends, emerging threats, and new cybersecurity and network technologies. 
• Research and analyze competitors' security products, identifying differentiators and positioning our company’s solutions effectively. 

 Basic Requirements

• Bachelor's degree in computer science, cybersecurity, information technology, or related
• Minimum 3 years of experience in cybersecurity or related IT security fields
• Strong ability to write structured security reports and create reusable report templates
• Able to explain security solutions or technologies to customers in a clear and professional manner, and able to conduct POC or POV for security solutions 
• Experience working in a cloud environment and cloud security will be a value add. 
• Comfortable with basic English communication (verbal and written)

 Preferred Qualifications

• Proficient in English communication, especially in professional/technical settings
• Experience with security vendors and products (e.g., Cisco, Palo Alto, Fortinet, Zscaler/Netskope, CrowdStrike, Splunk, etc.)
• Hands-on experience with ISMS or ISMS-P compliance projects
• Holding relevant certifications such as CPPG or other security/privacy-related credentials
• Knowledge of network security, cloud security (AWS, Azure, GCP), data security, and compliance standards (e.g., ISO 27001, NIST, GDPR, HIPAA).

SUMMARY

As a Senior Solutions Engineer, you will be responsible for supporting our enterprise customers, reporting to the regional Manager, Solutions Engineering. You will partner directly with regional account executives to help change our customers view and how they approach cloud security. You will be their trusted advisor for all matters related to cloud security across AWS, Azure, and GCP. We are passionate about technical sales and helping our customers achieve the maximum value from our solution.

WHAT YOU’LL DO

• Partner with the sales team to provide technical leadership to our customers and prospective customers in conjunction with helping our team meet their quarterly sales targets.
• Provide presentations to our customers and prospective customers such as whiteboards,  product demonstrations, slides, and proof of value outcomes.
• Help our customers and prospective customers plan in-depth test plans for showing the value of the Wiz platform in their environment (proof of value).
• Invest time in learning new product features, industry related developments, and broadening your overall technical skillset.
• Represent Wiz in technical forums such as trade shows, technical meet-ups, and industry events.

WHAT YOU’LL BRING

• 13+ years of experience in a sales engineering role delivering solutions to C-level executives at enterprise customers
• Ability to deliver world class demonstrations and training experience to our customers
• Mastered the technical sales process
• Thrive in a creative technical role assisting customers to build a technical business delivery model
• Cloud security experience
• AWS/Azure/GCP hands on experience
• Network engineering experience
• Strong operating system, virtual machine, and container knowledge
• Knowledge of risk-based security assessments and frameworks
• Understanding of cloud identity, access, certificates, and keys

BONUS POINTS: 

• Experience with traditional CSPM tools
• SaaS experience
• Awareness of the CI/CD process
• Familiarity with Infrastructure as Code

SUMMARY

As a Solutions Engineer, you will be responsible for supporting our enterprise customers, reporting to the regional Manager, Solutions Engineering. You will partner directly with regional account executives to help change our customers view and how they approach cloud security. You will be their trusted advisor for all matters related to cloud security across AWS, Azure, and GCP. We are passionate about technical sales and helping our customers achieve the maximum value from our solution.

WHAT YOU’LL DO

• Partner with the sales team to provide technical leadership to our customers and prospective customers in conjunction with helping our team meet their quarterly sales targets.
• Provide presentations to our customers and prospective customers such as whiteboards,  product demonstrations, slides, and proof of value outcomes.
• Help our customers and prospective customers plan in-depth test plans for showing the value of the Wiz platform in their environment (proof of value).
• Invest time in learning new product features, industry related developments, and broadening your overall technical skillset.
• Represent Wiz in technical forums such as trade shows, technical meet-ups, and industry events.

WHAT YOU’LL BRING

• 6+ years of experience in a sales engineering role delivering solutions to C-level executives at commercial and mid-market customers
• Ability to deliver world class demonstrations and training experience to our customers
• Mastered the technical sales process
• Thrive in a creative technical role assisting customers to build a technical business delivery model
• Cloud security experience
• AWS/Azure/GCP hands on experience
• Network engineering experience
• Strong operating system, virtual machine, and container knowledge
• Knowledge of risk-based security assessments and frameworks
• Understanding of cloud identity, access, certificates, and keys

BONUS POINTS: 

• Experience with traditional CSPM tools
• SaaS experience
• Awareness of the CI/CD process
• Familiarity with Infrastructure as Code

반드시 첨부된 ‘사내공모지원서 양식’을 작성 후 제출하여 주시기 바랍니다.  

Please complete the attached Internal Transfer Request Form and submit.  

반드시 쿠팡 이메일 계정으로 지원해 주시기 바랍니다.  

Please make sure to apply with your Coupang e-mail address.  

Coupang is reimagining the shopping experience with the goal of wowing each customer from the instant they open the Coupang app to the moment an order is delivered to their door. Powered by an outstanding end-to-end e-commerce and logistics network and a fanatical culture of customer centricity, Coupang has broken tradeoffs around speed, selection, and price. Today, we provide exceedingly fast shipping speeds on millions of items including fresh groceries, delivered within hours nationwide, 365 days a year. We are doing this for millions of consumers in Korea. Korea is home to one of the largest and fastest growing e-commerce opportunities anywhere in the world.

We have been named as one of the ‘50 Smartest Companies in the World’ by MIT Technology Review, and as one of Forbes magazine’s ‘30 Global Game Changers.’ In 2020, we placed second on CNBC’s ‘Disruptor 50’ list.

Job Overview

Coupang Pay is transforming the digital payments experience at massive scale—powering millions of secure transactions every day across Coupang.com, Coupang Eats, and our ecosystem of merchants and partners. We are building fast, reliable, and innovative fintech solutions that serve both consumers and businesses across Korea and beyond.

We are seeking a Sr.Staff Software Engineer who is both a visionary technical leader and a hands-on builder. This role combines architectural ownership, full-stack development, and distributed systems expertise to deliver payment systems with industry-leading scale, resiliency, and speed.

Key Responsibilities

Hands-on Architecture & Development

• Architect, design, and implement complex, distributed, cloud-native systems spanning frontend, backend, APIs, data pipelines, and infrastructure.

• Write and review production-grade code; optimize critical paths for performance, reliability, and correctness.

• Lead by example in code quality, observability, CI/CD, and security.

Operate at Scale & Speed

• Deliver mission-critical features to millions of users with rapid iteration while maintaining high availability and data integrity.

• Optimize systems for concurrency, throughput, and cost efficiency under heavy global loads.

• Participate in on-call rotation and drive continuous improvements in reliability and incident prevention.

Full-Stack & Distributed Systems Leadership

• Own large-scale payment microservices, event-driven pipelines, caching systems, and real-time APIs.

• Guide teams across web/mobile frontends, middleware, and backend services to ensure cohesive and performant experiences.

• Spearhead adoption of best practices in distributed computing, fault tolerance, and multi-region scaling.

Innovation & Emerging Technology

• Drive adoption of AI/ML technologies—build or integrate AI agents and intelligent automations into payment workflows.

• Stay ahead of fintech innovation, evaluating and deploying new technologies to improve customer experience and system resilience.

Leadership & Mentorship

• Mentor senior engineers and Sr.Staff-level peers, fostering a culture of innovation, technical rigor, and rapid delivery.

• Collaborate cross-functionally with product, design, and infrastructure leaders to shape both technical vision and product strategy.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.

• 12–15+ years of software engineering experience, with proven success in large-scale distributed systems.

• Deep expertise in full-stack development (Java, Go, Python, JavaScript/TypeScript, or equivalent).

• Hands-on architecture and design experience with microservices, event-driven systems, APIs, and real-time data processing.

• Strong fundamentals in algorithms, data structures, concurrency, and system design.

• Proven ability to deliver rapidly and reliably in fast-paced, high-growth environments.

Preferred Qualifications

• Master’s or PhD in Computer Science or related technical discipline.

• Payment systems experience at top global fintech companies (e.g., Stripe, PayPal, Razorpay, JusPay, AliPay, Visa, Adyen, Square, Mastercard).

• Hands-on experience building and deploying AI Agents (GenAI, RAG, workflow automation, LLMs) into production-scale systems.

• Deep knowledge of distributed microservices, cloud-native architectures (Kubernetes, containerization, serverless), and multi-region scaling.

• Experience in dealing with and resolving the issues that occur when an organization grows in size and the systems get complicated

• Publications, patents, or open-source contributions in distributed systems, payments, or AI applications.

• Fluent English (Korean a plus); strong communication skills with global stakeholders.

Why Coupang Pay?

• Shape the future of digital payments in one of the world’s fastest-growing e-commerce ecosystems.

• Own mission-critical systems serving millions of customers at global scale.

• Work in an inclusive, high-impact culture that values innovation, speed, and craftsmanship.

• Competitive compensation, equity, benefits, and continuous learning opportunities.

Join us to build the core of next-generation fintech at scale.

Recruitment Process and Others

Recruitment Process

• Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
• The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
• Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.
  
  

반드시 첨부된 ‘사내공모지원서 양식’을 작성 후 제출하여 주시기 바랍니다.  

Please complete the attached Internal Transfer Request Form and submit.  

반드시 쿠팡 이메일 계정으로 지원해 주시기 바랍니다.  

Please make sure to apply with your Coupang e-mail address.  

Coupang is reimagining the shopping experience with the goal of wowing each customer from the instant they open the Coupang app to the moment an order is delivered to their door. Powered by an outstanding end-to-end e-commerce and logistics network and a fanatical culture of customer centricity, Coupang has broken tradeoffs around speed, selection, and price. Today, we provide exceedingly fast shipping speeds on millions of items including fresh groceries, delivered within hours nationwide, 365 days a year. We are doing this for millions of consumers in Korea. Korea is home to one of the largest and fastest growing e-commerce opportunities anywhere in the world.

We have been named as one of the ‘50 Smartest Companies in the World’ by MIT Technology Review, and as one of Forbes magazine’s ‘30 Global Game Changers.’ In 2020, we placed second on CNBC’s ‘Disruptor 50’ list.

Job Overview

Coupang Pay is transforming the digital payments experience at massive scale—powering millions of secure transactions every day across Coupang.com, Coupang Eats, and our ecosystem of merchants and partners. We are building fast, reliable, and innovative fintech solutions that serve both consumers and businesses across Korea and beyond.

We are seeking a Sr.Staff Software Engineer who is both a visionary technical leader and a hands-on builder. This role combines architectural ownership, full-stack development, and distributed systems expertise to deliver payment systems with industry-leading scale, resiliency, and speed.

Key Responsibilities

Hands-on Architecture & Development

• Architect, design, and implement complex, distributed, cloud-native systems spanning frontend, backend, APIs, data pipelines, and infrastructure.

• Write and review production-grade code; optimize critical paths for performance, reliability, and correctness.

• Lead by example in code quality, observability, CI/CD, and security.

Operate at Scale & Speed

• Deliver mission-critical features to millions of users with rapid iteration while maintaining high availability and data integrity.

• Optimize systems for concurrency, throughput, and cost efficiency under heavy global loads.

• Participate in on-call rotation and drive continuous improvements in reliability and incident prevention.

Full-Stack & Distributed Systems Leadership

• Own large-scale payment microservices, event-driven pipelines, caching systems, and real-time APIs.

• Guide teams across web/mobile frontends, middleware, and backend services to ensure cohesive and performant experiences.

• Spearhead adoption of best practices in distributed computing, fault tolerance, and multi-region scaling.

Innovation & Emerging Technology

• Drive adoption of AI/ML technologies—build or integrate AI agents and intelligent automations into payment workflows.

• Stay ahead of fintech innovation, evaluating and deploying new technologies to improve customer experience and system resilience.

Leadership & Mentorship

• Mentor senior engineers and Sr.Staff-level peers, fostering a culture of innovation, technical rigor, and rapid delivery.

• Collaborate cross-functionally with product, design, and infrastructure leaders to shape both technical vision and product strategy.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.

• 12–15+ years of software engineering experience, with proven success in large-scale distributed systems.

• Deep expertise in full-stack development (Java, Go, Python, JavaScript/TypeScript, or equivalent).

• Hands-on architecture and design experience with microservices, event-driven systems, APIs, and real-time data processing.

• Strong fundamentals in algorithms, data structures, concurrency, and system design.

• Proven ability to deliver rapidly and reliably in fast-paced, high-growth environments.

Preferred Qualifications

• Master’s or PhD in Computer Science or related technical discipline.

• Payment systems experience at top global fintech companies (e.g., Stripe, PayPal, Razorpay, JusPay, AliPay, Visa, Adyen, Square, Mastercard).

• Hands-on experience building and deploying AI Agents (GenAI, RAG, workflow automation, LLMs) into production-scale systems.

• Deep knowledge of distributed microservices, cloud-native architectures (Kubernetes, containerization, serverless), and multi-region scaling.

• Experience in dealing with and resolving the issues that occur when an organization grows in size and the systems get complicated

• Publications, patents, or open-source contributions in distributed systems, payments, or AI applications.

• Fluent English (Korean a plus); strong communication skills with global stakeholders.

Why Coupang Pay?

• Shape the future of digital payments in one of the world’s fastest-growing e-commerce ecosystems.

• Own mission-critical systems serving millions of customers at global scale.

• Work in an inclusive, high-impact culture that values innovation, speed, and craftsmanship.

• Competitive compensation, equity, benefits, and continuous learning opportunities.

Join us to build the core of next-generation fintech at scale.

Recruitment Process and Others

Recruitment Process

• Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer

• The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.

• Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.
  
  

Details to Consider

• This job posting may be closed prior to the stated end date for application if all openings are filled.

• Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.

• Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.

• We are proud to offer equal opportunities for all applicants.

• Hiring may be restricted in case the legal qualifications required for hiring and work performance is not met.

• This is a full-time regular position and includes 12 weeks of probation period; provided, however, the probationary period may be either skipped, shortened or extended if necessary for business purposes.

Privacy Notice

• Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice is located below.
  https://privacy.coupang.com/en/land/jobs/

Document Return Policy

1. This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.
2. A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.
3. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit It by email (recruitingops@coupangpay.com). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.
4. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.
5. The above paragraphs 1 - 4 shall only apply when the labor-related laws of Korea govern the application. They are otherwise not applicable.

Coupang is reimagining the shopping experience with the goal of wowing each customer from the instant they open the Coupang app to the moment an order is delivered to their door.Powered by an outstanding end-to-end e-commerce and logistics network and a fanatical culture of customer centricity, Coupang has broken tradeoffs around speed, selection and price. Today, we provide exceedingly fast shipping speeds on millions of items including fresh groceries, delivered within hours nationwide, 365 days a year.We are doing this for millions of consumers in Korea. Korea is home to one of the largest and fastest growing e-commerce opportunities anywhere in the world.

[About the Team]

As a part of Ecommerce Engineering team, we exist for wow customer experiences, world class service excellence and hyper growing revenue. To achieve this, we build scalable & extensible architecture to support fast business growth & expansion, we create high performance & resilient backend system to handle increasing customer requests and we setup stable & fault-tolerant mechanisms to guarantee the customer experience. Creating disruptive products & resilient platforms for customers with world-class talents and cutting-edge technology is our vision and our commitment to the company.

[Key Responsibilities]

• Hands on engineering leader with deep understanding of open source stack and distributed systems
• Design layered application, drive the highest quality of architecture and design of purchase/logistic systems
• Align with PO and business to understand the problem and come out solution, and align with stakeholders and lead engineers on mission critical projects to resolve complex business problem
• Draw a roadmaps and vision for the scalable and robust growth of the merchant platform to support business growth
• Collaborate with other Coupang tech teams to make the service extensible to unlock opportunities for innovations

[Basic Qualifications] 

• Excellent communication skills, good read/write skills in English
• Good deep dive skills and someone who is bar raiser for engineering excellence
• At least 7+ years working experience on software design & development
• Good experience on distributed system and rich experience developing large scale enterprise
• Able to work in a dynamic and fast paced environment with frequent and on-time
• Bachelor’s degree in Computer Science, Engineering or related field

[Recruitment Process and Others]

Recruitment Process

• Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
• The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
• Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

Details to Consider

• This job posting may be closed prior to the stated end date for application if all openings are filled.
• Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
• Those eligible for employment protection (recipients of veteran’s benefits, the disabled, etc.) may receive preferential treatment for employment in accordance with applicable laws.
• Job titles and responsibilities may be subject to change depending on the candidate’s overall experience, etc. This will be communicated to the candidate at the appropriate time before the offer.

Privacy Notice

• Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below. https://www.coupang.jobs/en/privacy-policy/

Document Return Policy

• This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.
• A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.
• A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit the request to the Company (Coupang Recruiting Team, Tower 730, 570 Songpa-daero, Songpa-gu, Seoul). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.
• In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all of his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.

Equal Opportunities for All

Coupang is an equal opportunity employer. Our unprecedented success could not be possible without the valuable inputs of our globally diverse team.

Company Introduction

We exist to wow our customers. We know we’re doing the right thing when we hear our customers say, “How did we ever live without Coupang?” Born out of an obsession to make shopping, eating, and living easier than ever, we are collectively disrupting the multi-billion-dollar commerce industry from the ground up and establishing an unparalleled reputation for being leading and reliable force in South Korean commerce.

We are proud to have the best of both worlds — a startup culture with the resources of a large global public company. This fuels us to continue our growth and launch new services at the speed we have been at since our inception. We are all entrepreneurial surrounded by opportunities to drive new initiatives and innovations. At our core, we are bold and ambitious people that like to get our hands dirty and make a hands-on impact. At Coupang, you will see yourself, your colleagues, your team, and the company grow every day.

Our mission to build the future of commerce is real. We push the boundaries of what’s possible to solve problems and break traditional tradeoffs. Join Coupang now to create an epic experience in this always-on, high-tech, and hyper-connected world.

Role Overview

The Global Operations Tech (GOT) organization is responsible for the systems that enable Coupang to reliably deliver to customers within hours of orders being placed. GOT is on a mission to innovate logistics by building an efficient delivery network at breakthrough scale and speeds. As a Staff Backend Engineer in GOT, you will leverage advanced algorithms to improve Coupang’s customer experience by ensuring ultra-fast deliveries are on time even during the busiest times of the year. 

What You Will Do

• Design and develop system architecture for Global Operations Technology to ensure stable operations.
• Develop front/back office web services based on the Java platform.
• Identify dependencies across multiple domains and develop system integrations.
• Evaluate and adopt new technologies to enable efficient development and operations.
• Implement optimization algorithms to find the most cost-effective and fastest delivery methods based on rule-based logic.

Qualifications

• Experience developing web applications using Java and Spring Framework.
• 7+ years of programming experience.
• 5+ years of hands-on experience in web application development and operations, or equivalent capabilities.
• Interest in experiencing Coupang’s global-level logistics systems and diverse domains.
• Passion for developing high-availability systems that handle large-scale traffic in a microservices architecture (MSA) environment.

Preferred Qualifications

• Experience or understanding of microservices architecture-based system development.
• Experience or understanding of service development and operations in cloud environments.
• Experience with asynchronous event-driven architecture for large-scale processing.
• Experience improving code quality through development best practices.
• Experience with ORM tools such as JPA or Hibernate and domain modeling.
• Experience developing e-commerce services.
• Experience with build/test/deployment automation.
• Experience handling large-scale data using NoSQL technologies (e.g., Memcached, Redis).

Recruitment Process and Others

Recruitment Process

• Application Review - Phone Interview - Onsite (or Virtual Onsite) Interview – Offer
• The exact nature of the recruitment process may vary according to the specific job and may be changed due to scheduling or other circumstances.
• Interview schedules and the results will be informed to the applicant via the e-mail address submitted at the application stage.

Details to Consider

• This job posting may be closed prior to the stated end date for application if all openings are filled.
• Coupang has the right to rescind an offer of employment if a candidate is found to have submitted false information as part of the application process.
• Coupang does not discriminate against disabled applicants or those with veteran status. We are proud to offer equal opportunities for all applicants.
• Hiring may be restricted in case the legal qualifications required for hiring and work performance is not met.
• This is a full-time regular position and includes 12 weeks of probation period; provided, however, the probationary period may be either skipped, shortened or extended if necessary for business purposes.

Privacy Notice

• Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice is located below.
• https://privacy.coupang.com/en/land/jobs/

Document Return Policy

1. This notification is given pursuant to Article 11 (6) of the Fair Hiring Procedure Act.
2. A job applicant, who has applied but not been finally selected for a position at Coupang (the “Company”), may request the Company to return his/her hiring documents submitted pursuant to the Fair Hiring Procedure Act. However, this will not apply where the hiring documents were submitted via the website of the Company or e-mail, or where the job applicant submitted those documents voluntarily without a request from the Company. In addition, if the hiring documents were destroyed due to a natural disaster or any other reasons not attributable to the Company, such documents will be deemed to have been returned to the job applicant.
3. A job applicant who wishes to request the return of his/her hiring documents pursuant to the main sentence of paragraph 2 above should fill out a “Request for Return of Hiring Documents” [Annex Form No. 3 in the Enforcement Rule of the Fair Hiring Procedure Act] and submit It by email (recruitingops@coupang.com). In such case, within fourteen (14) days from the date of identifying the receipt of the request, the Company will send the hiring documents to the job applicant’s designated address via registered mail. Please be informed that the job applicant is required to pay the postage on the registered mail.
4. In preparation for a job applicant’s request for the return of hiring documents pursuant to the main sentence of paragraph 2 above, the Company shall retain the original hiring documents submitted by the job applicant for 180 days from the completion of the recruiting process. If no request is made until the end of this period, all his/her hiring documents will be destroyed immediately in accordance with the Personal Information Protection Act.
5. The above paragraphs 1 - 4 shall only apply when the labor-related laws of Korea govern the application. They are otherwise not applicable.

전형 절차 및 안내 사항

• 전형 절차
  • 서류전형 - 전화면접 - 대면면접 – 최종 합격
  • 전형 절차는 직무별로 다르게 운영될 수 있으며, 일정 및 상황에 따라 변동될 수 있습니다.
  • 전형 일정 및 결과는 지원서에 등록하신 이메일로 개별안내드립니다.
• 참고 사항
  • 본 공고는 모집 완료 시 조기 마감될 수 있습니다.
  • 지원서 내용 중 허위사실이 있는 경우에는 합격이 취소될 수 있습니다.
  • 취업 보호 대상자(보훈대상자, 장애인 등)는 관련 법률에 따라 채용우대를 받을 수 있습니다.
• 개인정보 처리방침
  • 쿠팡 그룹은 입사지원자 개인정보 처리방침(아래 링크)에 따라 귀하의 개인정보를 수집하여 처리합니다. https://www.coupang.jobs/kr/privacy-policy/
• 서류 반환 정책
  • 본 고지는 『채용절차의 공정화에 관한 법률』 제11조 제6항에 따른 것입니다.
  • 당사 채용에 응시한 구직자 중 최종합격이 되지 못한 구직자는 『채용절차의 공정화에 관한 법률』에 따라 제출한 채용서류의 반환을 청구할 수 있음을 알려 드립니다. 다만, 홈페이지 또는 전자우편으로 제출된 경우나 구직자가 당사의 요구 없이 자발적으로 제출한 경우에는 그러하지 아니하며, 천재지변이나 그 밖에 당사에게 책임 없는 사유로 채용서류가 멸실된 경우에는 반환한 것으로 봅니다.
  • 위 2항 본문에 따라 채용서류 반환 청구를 하는 구직자는 채용서류 반환청구서[채용절차의 공정화에 관한 법률 시행규칙 별지 제3호 서식]를 작성하여 당사 이메일( recruitingops@coupang.com )로 제출하면, 제출이 확인된 날로부터 14일 이내에 지정한 주소지로 등기우편을 통하여 발송해 드립니다. 이 경우 등기우편요금은 수신자 부담으로 하게 되오니 유념하시기 바랍니다.
  • 당사는 위 2항 본문에 따른 구직자의 반환 청구에 대비하여 채용 여부가 확정된 날로부터 180일간 구직자가 제출한 채용서류 원본을 보관하게 되며, 그때까지 채용서류의 반환을 청구하지 아니할 경우에는 『개인정보 보호법』에 따라 지체 없이 채용서류 일체를 파기할 예정입니다.

Equal Opportunities for All

Coupang is an equal opportunity employer. Our unprecedented success could not be possible without the valuable inputs of our globally diverse team.

Available Location: Seoul, South Korea

What you’ll do as a Senior Solutions Engineer

You are the technical lynchpin through the entire sales cycle - pre and post sales. You will work closely with our prospects and customers to educate, empower, and ensure their success on the Cloudflare platform. Your technical expertise in Cloudflare’s global distributed network and technology will allow you to find best-fit solutions for prospects, to train and onboard new customers via video-conference or in person, through documentation, and to support the long-term success of the customer. As a subject matter expert on web/mobile security and performance, you are a trusted source for developing new firewall rules from log files, crafting performance caching and delivery strategies, and creating or repurposing internal tools and scripts for customers.

As a Senior Solutions Engineer, you are the technical customer advocate within Cloudflare. To aid your customers, you will work closely with every team at Cloudflare, from Sales and Product, through to Engineering and Customer Support. Your goal of customer success should drive you through the entire organization as you seek out and create scalable solutions for your customer’s needs.

What we look for in our Solutions Engineers

Our Solutions Engineers come from a wide range of backgrounds: financial consulting, engineering, software development, product management, customer support, and project delivery. We're serious about building a diverse team. When hiring we look for diversity of experience combined with genuine curiosity for our technology.

Ultimately, you are passionate about technology and have the ability to explain complex technical concepts in easy-to-understand terms. You are naturally curious, and an avid builder who is not afraid to get your hands dirty. You appreciate the diversity of challenges in working with customers, and look forward to helping them realize the full promise of Cloudflare. On the Solutions Engineering team, you will find a collaborative environment where everyone brings different strengths and jumps in to help each other.

Responsibilities

• As critical members of Cloudflare’s sales team, Solutions Engineers drive technical discussions and implementations to help generate new business, expand existing business, and keep our customers happy.
• In business generation and expansion, you’ll be tasked with qualification of prospect and customer use cases, technical requirements discovery, leading demonstrations, solution identification and design, and collaborative work on proofs-of-concept (PoCs).
• For our existing customers, Solutions Engineers are part of a dedicated account team that advises the customer on technical best practices, implementation of Cloudflare products and features, and strategic guidance on internet security and performance.
• The role requires 20-50% travel to attend meetings with prospects or customers, attend conferences and other industry events, and to collaborate with your Cloudflare teammates.

Requirements

• Demonstrated experience with a scripting language (e.g. Python, JavaScript, Bash, Lua, Go) and a desire to expand those skills.
• Expertise in internet technologies: OSI Model layers 1-7, BGP, GRE, TCP/UDP, DNS (authoritative and recursive), HTTP(S), SSL / TLS.
• Familiarity with Zero Trust Framework and SASE related concepts.
• 10 years plus of experience in a customer-facing sales or consulting role.
• Technical curiosity and passion: Cloudflare is at the cutting edge of internet technology, and our Solutions Engineers are viewed as subject-matter experts. It’s incumbent on us to stay up to date not only with Cloudflare’s specific products, but with industry trends.
• A focus on learning, teaching, collaboration, mentorship, and growth, not only personally but also within the team and company.
• Aside from technical and collaborative skills, we place a high value on project management, relationship building, and EQ.

Desired

• You've built web applications before, or contributed to existing web applications in a meaningful way.
• You understand the role of a firewall, the difference between L3, L4, and L7 firewalls, and that ‘ACL’ doesn't always mean Anterior Cruciate Ligament.
• You're not afraid of command-line interfaces, RESTful APIs, or analyzing HTTP request and response in a browser’s web inspector.
• You can describe the differences between CSRF, XSS, and SQLi in detail, and Cloudflare's role in defending against them.
• Understanding of, or experience with, regulatory requirements such a PCI DSS, HIPAA, and SOC-2.
• Good communication skills in Korean and English 
• An undergraduate degree in Computer Science, Engineering or a related field. Reminder: this is not a strict requirement at all. Candidates from all walks of life are welcome.

Bonus Points

• Graduate-level degrees in Computer Science, Engineering or related fields. Reminder: this is not a strict requirement at all. Candidates from all walks of life are welcome.
• Certifications

More About You

• You can translate technical concepts and jargon for a wide variety of audiences: from systems engineers, to front-end developers, through to IT managers and C-levels in organizations.
• You want to be constantly learning new things and teaching what you've learned to the broader team through internal and external blog posts, team demos, and product training sessions.
• You have a knack for understanding problems and finding creative ways to solve them. Our product suite is ever-growing, and knowing how to identify which parts will solve a customer's particular problem is important.
• You understand how to manage a project, work to deadlines, and prioritize between competing demands.

Available Location: Seoul, South Korea

What you’ll do as a Solutions Engineer

You are the technical lynchpin through the entire sales cycle - pre and post sales. You will work closely with our prospects and customers to educate, empower, and ensure their success on the Cloudflare platform. Your technical expertise in Cloudflare’s global distributed network and technology will allow you to find best-fit solutions for prospects, to train and onboard new customers via video-conference or in person, through documentation, and to support the long-term success of the customer. As a subject matter expert on web/mobile security and performance, you are a trusted source for developing new firewall rules from log files, crafting performance caching and delivery strategies, and creating or repurposing internal tools and scripts for customers.

As a Solutions Engineer, you are the technical customer advocate within Cloudflare. To aid your customers, you will work closely with every team at Cloudflare, from Sales and Product, through to Engineering and Customer Support. Your goal of customer success should drive you through the entire organization as you seek out and create scalable solutions for your customer’s needs.

What we look for in our Solutions Engineers

Our Solutions Engineers come from a wide range of backgrounds: financial consulting, engineering, software development, product management, customer support, and project delivery. We're serious about building a diverse team. When hiring we look for diversity of experience combined with genuine curiosity for our technology.

Ultimately, you are passionate about technology and have the ability to explain complex technical concepts in easy-to-understand terms. You are naturally curious, and an avid builder who is not afraid to get your hands dirty. You appreciate the diversity of challenges in working with customers, and look forward to helping them realize the full promise of Cloudflare. On the Solutions Engineering team, you will find a collaborative environment where everyone brings different strengths and jumps in to help each other.

Responsibilities

• As critical members of Cloudflare’s sales team, Solutions Engineers drive technical discussions and implementations to help generate new business, expand existing business, and keep our customers happy.
• In business generation and expansion, you’ll be tasked with qualification of prospect and customer use cases, technical requirements discovery, leading demonstrations, solution identification and design, and collaborative work on proofs-of-concept (PoCs).
• For our existing customers, Solutions Engineers are part of a dedicated account team that advises the customer on technical best practices, implementation of Cloudflare products and features, and strategic guidance on internet security and performance.
• The role requires 20-50% travel to attend meetings with prospects or customers, attend conferences and other industry events, and to collaborate with your Cloudflare teammates.

Requirements

• Demonstrated experience with a scripting language (e.g. Python, JavaScript, Bash, Lua, Go) and a desire to expand those skills.
• Expertise in internet technologies: OSI Model layers 1-7, BGP, GRE, TCP/UDP, DNS (authoritative and recursive), HTTP(S), SSL / TLS.
• Familiarity with Zero Trust Framework and SASE related concepts.
• 6 years plus of experience in a customer-facing sales or consulting role.
• Technical curiosity and passion: Cloudflare is at the cutting edge of internet technology, and our Solutions Engineers are viewed as subject-matter experts. It’s incumbent on us to stay up to date not only with Cloudflare’s specific products, but with industry trends.
• A focus on learning, teaching, collaboration, mentorship, and growth, not only personally but also within the team and company.
• Aside from technical and collaborative skills, we place a high value on project management, relationship building, and EQ.

Desired

• You've built web applications before, or contributed to existing web applications in a meaningful way.
• You understand the role of a firewall, the difference between L3, L4, and L7 firewalls, and that ‘ACL’ doesn't always mean Anterior Cruciate Ligament.
• You're not afraid of command-line interfaces, RESTful APIs, or analyzing HTTP request and response in a browser’s web inspector.
• You can describe the differences between CSRF, XSS, and SQLi in detail, and Cloudflare's role in defending against them.
• Understanding of, or experience with, regulatory requirements such a PCI DSS, HIPAA, and SOC-2.
• Good communication skills in Korean and English 
• An undergraduate degree in Computer Science, Engineering or a related field. Reminder: this is not a strict requirement at all. Candidates from all walks of life are welcome.

Bonus Points

• Graduate-level degrees in Computer Science, Engineering or related fields. Reminder: this is not a strict requirement at all. Candidates from all walks of life are welcome.
• Certifications

More About You

• You can translate technical concepts and jargon for a wide variety of audiences: from systems engineers, to front-end developers, through to IT managers and C-levels in organizations.
• You want to be constantly learning new things and teaching what you've learned to the broader team through internal and external blog posts, team demos, and product training sessions.
• You have a knack for understanding problems and finding creative ways to solve them. Our product suite is ever-growing, and knowing how to identify which parts will solve a customer's particular problem is important.
• You understand how to manage a project, work to deadlines, and prioritize between competing demands.

The Site Reliability Engineering team at IMC Trading is focused on the scalability and reliability of our trading systems.

We are responsible for the operations of real-time systems, providing fast and effective incident response to keep IMC trading in the market. We work closely with traders and software developers to define short and long term improvements that make our trading systems easier to operate and more scalable. In the process, we build an understanding of IMC’s trading strategies and software stack and apply automation that allows everyone to move fast, safely.

Your Core Responsibilities:

• Provide continuity, stability, and reliability of the Korean trading production environment.
• Ensure continuity of critical trading operations, prioritising resolution of system issues with a sense of urgency: you will be the first layer of response, and will need to triage and resolve / escalate issues under time pressure.
• Support and monitor trading systems, proactively addressing problems before they are noticed
• Partner with technology and trading teams to continually evolve and deploy system architecture
• Define and own improvements to our systems and make sure they are delivered, whether by the SRE team, our dev teams or trading teams
• Making sure that quick fixes are turned into lasting solutions
• Support and oversight on corporate infrastructure where required
• Liaise with vendors for IT related tasks and problem resolutions

Your Skills and Experience:

• Fluent in English both verbal and written is a must.
• Fluent in Korean both verbal and written is a strong advantage.
• Tertiary qualifications in engineering, computer science or equivalent.
• 5+ years of experience, including 3+ years of experience in Site Reliability Engineering, Systems Integration, or a related role
• 3+ years of hands-on professional experience with Linux operating systems, network configuration, containers and orchestration tools, including Kubernetes
• Proficiency in Python and Bash is required, experience with Go, Java and C++ are desirable

About the Role 

As a Senior Software Engineer in the System SW, you will serve as the architect of our core software infrastructure—the critical layer that keeps the entire autonomy stack running. This is a high-impact role for technical leaders who are comfortable working across architecture, implementation, and long-term system health.

You will go beyond individual feature implementation to design scalable, robust, and high-performance system architectures. This is not a support role; you will make design decisions that affect the entire engineering organization, identify structural risks before they become recurring problems, and turn ambiguous technical challenges into robust software that scales across thousands of sensors and vehicles.

Responsibilities

• Design and lead the development of robust, scalable system-level software and middleware in Modern C++ to support complex autonomy and perception stacks.
• Own and evolve foundational infrastructure including process management, resource isolation, and runtime stability across our deployed platforms.
• Drive safety and reliability engineering by implementing fault detection, graceful degradation, and system-level testing to ensure continuous operation under stress.
• Design and maintain data pipeline and streaming infrastructure for the efficient transport and delivery of high-bandwidth sensor data at scale.
• Identify and resolve complex system-wide bottlenecks by leading profiling and optimization efforts for CPU, GPU, memory, and network utilization.
• Facilitate technical mentorship by leading code and design reviews, establishing best practices for C++ development, and raising the technical bar across the organization.
• Collaborate closely with Perception, Motion, and Infra teams to define and enforce clean system interfaces and make practical engineering tradeoffs

Qualifications

• Bachelor’s degree or higher in Computer Science, Computer Engineering, or a related field.
• At least 6+ years of experience with strong proficiency in Modern C++ with a deep understanding of multi-threading and concurrency.
• Demonstrate a mastery of Linux systems with an in-depth understanding of IPC, networking, and system calls, combined with expertise in profiling and performance analysis tools.
• Possess strong problem-solving skills with experience debugging complex system-level issues in production or production-like environments.
• Apply sound engineering judgment to turn ambiguous requirements into well-structured software with a strong bias toward ownership.
• Business English proficiency for collaboration in a multinational team.

Preferred Qualifications

• Experience with real-time systems, autonomous driving architectures, or safety-critical systems.
• Familiarity with high-performance middleware or shared memory IPC for low-latency system tuning.
• Experience in Hardware-Software Co-design or customizing Linux distributions for edge computing deployments.
• In-depth knowledge of build systems and scaling CI/CD pipelines to improve long-term code health and maintainability.
• Background in fault tolerance, watchdog design, or formal reliability practices in fast-moving product environments.

Recruitment Process

Application Review - Recruiter Screening - Tech Interviews - CEO Screening - Reference Check -Offer    

(Please be aware that the recruitment processes & schedules may be changed depending on the job and/or other circumstances)