Jobs at Coupang

Lead the architectural design and implementation of a highly scalable workflow engine for Coupang, ensuring extreme availability and AI integration while collaborating across teams.

The Staff Backend Engineer will architect and implement a scalable, reliable workflow engine, focusing on extreme availability and integrating AI for automation.

Design and build large-scale ML models and systems to improve ad targeting, relevance, ranking, and engagement. Implement search, retrieval, and personalized discovery using transformers, embeddings, vector search and LLMs. Build and optimize ML pipelines, define KPIs, collaborate cross-functionally, and mentor engineers to drive production-grade advertising products and platform scalability.

Design, build, and maintain observability platforms and tooling (metrics, logs, traces) for large-scale distributed systems. Collaborate with engineering and SRE teams to define SLOs/KPIs, evaluate observability tools, troubleshoot incidents, drive standardization, and mentor engineers while improving monitoring, alerting, and telemetry practices.

The Senior Staff Machine Learning Engineer will improve Coupang's search and discovery systems using advanced algorithms, addressing bottlenecks, proposing solutions, and leading projects involving personalization and recommendations.

Design, build, and deploy end-to-end machine learning solutions for growth marketing platforms. Develop scalable model training, validation, and serving pipelines, lead experiments, present results to leadership, and mentor junior engineers to improve customer acquisition, retention, and ROAS.

Lead company-wide, technically complex programs end-to-end: define strategy, translate data and system analysis into business requirements, drive engineering through SDLC, prioritize platform and non-functional improvements, and influence senior leaders to achieve quarterly and annual goals with strong metrics-driven execution.

Build and deploy large-scale ML systems for search, ranking, and personalization. Process billions of events and petabytes of logs into consumable features, train transformer and embedding models, serve models in real time, track impact metrics, and collaborate cross-functionally while mentoring engineers.

Provide legal guidance on AI-powered product features, conduct company-wide AI reviews, partner with engineering/product/security/privacy, communicate complex legal and technical concepts, and build scalable AI governance and compliance processes.

Lead and oversee the development and operations of AI infrastructure orchestration, focusing on team management, strategic vision, and technology integration.

This role involves designing and building scalable ML systems for search and recommendation, transforming user data, and optimizing ML pipelines. The position also includes mentoring engineers and collaborating with cross-functional teams.

Lead development of Coupangs Search & Discovery mobile experience: build AI harnesses, ship high-quality iOS search components, collaborate with PMs and designers, run data-driven experiments (A/B tests), use analytics tools to inform product decisions, and maintain performant, scalable consumer-facing mobile features.

Build and productionize large-scale ML systems for search, ranking, and personalization. Handle petabyte-scale data pipelines, design transformer/embedding-based retrieval and real-time model serving, track metrics, collaborate cross-functionally, and mentor engineers to improve relevance and customer discovery.

Develop, integrate, and deploy motion-planning, trajectory-optimization, manipulation-planning, and feedback-control algorithms for industrial robots. Build production-quality planning and control software, integrate with perception, state estimation, simulation, and hardware, and create validation and testing workflows. Diagnose field issues, improve system reliability with data-driven methods, and collaborate cross-functionally on architecture, interfaces, and deployment.

The role involves developing advanced AI solutions for e-commerce scenarios, designing algorithms, optimizing ML systems, and collaborating cross-functionally to drive innovations that enhance user experience.

Lead and evolve Coupang's core search experience using AI and machine learning, driving innovation, product direction, and measurable business impacts.

The Staff Technical Program Manager will lead company-wide programs from product definition to execution, focusing on platform and API technologies while driving collaboration across engineering teams to enhance customer experience.

Lead the design of a distributed backend streaming engine with a focus on high availability and AI integration, ensuring low latency and high throughput.

Lead database engineering and AI-driven automation for high-traffic e-commerce systems. Manage Aurora MySQL/PostgreSQL and multiple NoSQL stores, optimize performance, ensure 5-6 nines availability, build automation and self-healing using Python and AI, run on-call rotations, execute upgrades/migrations, and collaborate with dev, infra, and security teams.

Design and implement scalable offline and online ML infrastructure for Search & Discovery: build data logging, ETL, training pipelines, and real-time model serving for ranking and recommendations, collaborate with cross-functional teams, and mentor engineers.