Staff Mobile Engineer [Marketing Product Engineering]
Summary
The Staff Mobile Engineer will lead Android architecture and engineering quality for Coupang's growth and marketing platforms. The role involves building high-quality mobile experiences, mentoring teams, and leveraging AI-assisted tools to improve development productivity and code standards.
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(Please remove the guide section when posting the job)
- [MUST refer to the latest Job Post Template] [CHINA/HK] Standard Job Post Template
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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
In Growth Engineering, our mission is to increase the number of transacting customers and grow their purchase frequency and lifetime value. We build platforms and services that power Coupang’s growth and marketing efficiency, including Search Advertising, Affiliate, Display targeting, CRM, Audience, and Push Marketing, along with core services for user profiles, landing, tracking, and attribution. As an Android Software Engineer, you will design, build, and operate high-quality mobile experiences and platform capabilities used by Coupang customers. You will serve as a technical owner for Android architecture and engineering quality, making sound decisions on modularization, performance, reliability, security, testing, and maintainability. You will also use AI tools responsibly to accelerate implementation, generate and review code, improve test coverage, and explore solutions across Android, iOS, and Web while maintaining appropriate engineering judgment and quality standards. This role requires strong technical leadership. You will influence architecture and execution across teams, mentor engineers, drive quality improvements, and work closely with product, design, backend, data, and platform partners to deliver simple, reliable, and customer-focused solutions.
What You Will Do
- Own the architecture and technical direction of Android applications and shared mobile capabilities, balancing customer experience, delivery speed, scalability, and long-term maintainability.
- Design, implement, and operate robust Android features and services across the full software development lifecycle.
- Establish and continuously improve engineering quality standards, including code review, testing, observability, release safety, performance, reliability, and security.
- Lead technical discussions, clarify tradeoffs, and make pragmatic architecture decisions in ambiguous and fast-moving environments.
- Use AI-assisted development tools to accelerate coding, refactoring, documentation, test generation, and debugging while validating outputs for correctness, security, maintainability, and compliance.
- Apply strong cross-platform engineering judgment to support or prototype iOS, PC, and Web solutions with AI assistance, collaborating with specialists where appropriate.
- Improve automated test coverage and engineering feedback loops, including unit, integration, UI, regression, and production validation where appropriate.
- Partner with product managers, designers, backend engineers, data scientists, and other stakeholders to translate customer and business needs into clear technical solutions and execution plans.
- Investigate complex production issues, lead root-cause analysis, and drive durable fixes and preventive improvements.
- Communicate technical designs, risks, progress, and decisions clearly to technical and non-technical stakeholders.
Basic Qualifications
- 8+ years of professional software engineering experience, including substantial experience building and operating production Android applications.
- Strong proficiency in Kotlin and the Android SDK, with solid understanding of Android application architecture, lifecycle, concurrency, networking, and performance optimization.
- Experience designing maintainable Android architectures using appropriate patterns for modularization, dependency management, state management, and separation of concerns.
- Demonstrated ownership of software quality, including test strategy, code review, CI/CD, observability, release management, and production issue resolution.
- Experience delivering complex software systems from design through launch and operation.
- Experience influencing technical direction and engineering practices across a team or multiple teams.
- Demonstrated ability to mentor engineers, communicate effectively, and provide technical leadership without relying solely on organizational authority.
- Experience independently owning medium-to-large initiatives and influencing architecture and execution across teams without direct reporting authority.
- Hands-on experience using AI-assisted programming tools to improve development productivity, code quality, testing, or debugging, with the ability to critically review and validate AI-generated output.
- Bachelor’s degree in computer science or a related field, or equivalent practical experience.
- Written and verbal communication skills in English are required for effective collaboration with global teams.
Preferred Qualifications
- Experience building large-scale consumer-facing mobile applications with demanding requirements for performance, reliability, experimentation, and rapid release cycles.
- Experience with mobile observability, crash and ANR analysis, performance profiling, feature flags, experimentation, and staged rollout strategies.
- Working knowledge of iOS, Swift, Web, PC, or shared cross-platform development, and the ability to use AI assistance to contribute effectively outside a primary platform.
- Experience integrating mobile applications with distributed backend services, analytics, and personalization or marketing platforms.
- Familiarity with AI coding agents, code-generation workflows, prompt design, automated code review, and secure software development practices for AI-assisted engineering.
- Strong problem-solving skills and the ability to work backwards from customers to deliver simple solutions.
- Experience working in a fast-paced, ambiguous, and agile environment.
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.
Privacy Notice
- Your personal information will be collected and managed by Coupang as stated in the Application Privacy Notice located below:
As published by greenhouse
First Name, Last Name, Email, Phone, Resume/CV, Cover Letter, Location
- LinkedIn Profile optional
- Coupang China * does not collect or use any personal information other than the types of information specified in this Consent. Please ensure that your resume does not include any personal information other than the types specified in this Consent. choose one
- 1. (Required) Name, contact information, email address, nationality, educational background, work experience, qualifications, national merit status (for special hiring program applicants only), relative’s name/relationship/team, and application history are collected and used for the following purposes: (i) to verify the applicant’s identity and qualifications, (ii) background and reference checks, (iii) for job application, (iv) to check application records and whether the applicant passed the hiring process, (v) to communicate with the applicant, (vi) to respond to requests and inquiries regarding hiring process, and vii) to prevent unfair hiring. Collected personal information are retained for 3 years from the notification of hiring result, and then deleted without delay. You may refuse to provide consent, but such refusal may prevent you from applying. choose one
- 2. (Optional) If you agree, the above information will also be collected and used for the purpose of year-round hiring, or provided to one or more of the following entities other than the one applicant applied for, including Coupang affiliate or subsidiary company* for the purpose of considering hiring for other similar positions. In this case, collected personal information are retained for 5 years, and then deleted without delay. You may refuse to provide consent, but such refusal may prevent the year-round hiring from progressing normally or may result in the restriction of opportunities in the hiring process of companies other than the one you applied. choose one
- 3. (Optional) As stated in #2, I agree to provide my personal information to Coupang affiliate or subsidiary company* for the purpose of considering hiring for other similar positions. choose one
- 4. (Optional) Coupang affiliate or subsidiary company* will send recruitment notifications through transmission media such as phone, email, and SMS using the contact information and email address based on the consent provided by you. choose one
- 5. (Required) If you consent to the above provision of the collected information to Coupang affiliate or subsidiary company for the purpose of considering hiring for other similar positions, your collected information will be transferred to whichever Coupang affiliate or subsidiary company* that the applicant applied to for the recruitment procedure, and the applicant’s information may be transferred overseas in the process. The personal information is transmitted using a secure method and is retained for the retention period specified in the required consent #1 in this form. If you wish to exercise any of your rights concerning your personal information based on the relevant law, you may make a request through the contact information at the end of this Consent. You have the right to refuse to provide consent, but refusal may prevent you from applying. choose one
- 6. (Required) Name, email address, position the applicant applied for, the entity the applicant applied to and nationality are provided to RISQ Group Consulting (Beijing) Co., Ltd. for the purpose of i) education verification, ii) qualification verification, iii) work experience verifications and reference checks, iv) identity verification to check whether the applicant is an internationally sanctioned individual, and v) background check against global media, list of global sanctioned individuals, list of transaction restricted individuals provided by the law enforcement or financial regulator authorities. Personal information is retained until achieving the purpose. You may refuse to provide consent, but such refusal may prevent you from applying. choose one
- 7. (Optional) I consent to reference checks on me within the following scope: Additional reference checks may be conducted on applicants who applied for a job at Coupang China and passed on-site interviews, and Coupang China arranges means to conduct reference checks. Coupang China may collect other personal information about you, including integrity information collected from public sources and the performance evaluation information collected from your former employer or colleagues. Such information may contain sensitive personal information. choose one
- 1. I understand that working with Relatives in the Coupang group of companies (collectively, the "Coupang Group") -- where they can influence each other’s work -- can potentially create conflicts of interest. Therefore, such a situation requires prior approval from the People Operations. In view of the above, I hereby confirm that I DO NOT have any Relatives working in any company within the Coupang Group or serving on the Board of Directors of any company within the Coupang Group; choose one
- - Name of Relative(s) 亲属姓名: optional
- - Relationship 与您的关系: optional
- - Working Org / Team 组织/团队: optional
- 1. Are you currently, or have you been a government official, public servant, or employee of a public institution who may be subject to post‑employment or reemployment restrictions under applicable laws or regulations? choose one
- 2. Do you acknowledge and agree that where required under applicable laws or regulations: choose one · optional
- * Coupang China 酷澎中国 choose one · optional
- Document Policy choose one