Sr. Staff Engineer
Coupang · Seattle, USA
About this role
**Sr. Staff Engineer** We exist to wow our customers—building the future of commerce by creating end-to-end, scalable, intelligent systems that help third-party sellers thrive on our platform. **Role Overview** The Marketplace Growth Engineering team focuses on the success of third-party sellers. You’ll help build the backbone of the seller experience, from intuitive user interfaces to high-performance backend processing. **What You Will Do** - Design, develop, and automate large-scale, high-performance streaming data processing systems to drive business growth and enhance product experiences. - Build scalable data infrastructure and pipelines using best-in-class software engineering practices. - Develop optimal data models for storage and retrieval to meet critical product and business requirements. - Take full ownership of projects, ensuring high-quality development and operational health. - Establish and execute short- and long-term architectural roadmaps aligned to evolving business needs. - Drive continuous improvements in data platform efficiency, flexibility, and scalability—while maintaining customer trust, performance, and availability. - Contribute to shared data engineering tools and standards to improve productivity and quality across Growth Engineering and Coupang. - Functionally decompose complex problems into straightforward, maintainable solutions. - Provide technical leadership across teams to increase productivity and drive technical excellence. **Basic Qualifications** - Bachelor’s degree in Computer Science, Electrical Engineering, Math, or a closely related field - 8+ years of backend software development experience - Proficiency in Java and the Spring Framework - Experience working in cloud environments, particularly AWS - Demonstrated experience building and maintaining highly available, distributed systems **Preferred Qualifications** - 10+ years of professional software development experience - 5+ years building data-related products with Spark, Flink, Spring, and Java - Strong expertise in open-source frameworks/technologies (Spring, AWS, APIs, NoSQL, Big Data) including Kafka, Elasticsearch, Iceberg, and ClickHouse - Exceptional coding skills (data structures, algorithms, refactoring, performance optimization, complexity analysis) - Experience designing/maintaining distributed systems at scale with trade-offs based on business needs - Self-starter mindset; comfortable with evolving priorities and unclear requirements - Experience in agile, fast-paced environments - Strong communication skills and ability to collaborate with users, technical teams, and senior management - Experience influencing engineering best practices across teams - Hands-on expertise across the stack (front-end to back-end) - Customer-first mindset **Pay & Benefits (Summary)** - Base pay range: **$159,000/year to $324,000/year** (varies by market location and job-related knowledge/skills/experience) - Annual bonus: **0–20%** of base salary - Medical/Dental/Vision/Life, AD&D insurance - FSA & Health Savings Account (HSA) - Long-term/Short-term disability - Employee Assistance Program (EAP) - 401(k) plan with company match - 18–21 days PTO/year (based on tenure) + 12 paid holidays - Paid parental leave - Pre-tax commuter benefits - Free electric car charging station *Note: The provided description appears truncated at the end of the recruitment process section.*
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