Sr. Staff Software Engineer - Inventory and Promise Platform

Job Overview: As our Sr. Staff Backend Engineer for the Inventory and Promise Platform team, you will empower Coupang Fulfillment & Transportation to operate faster, better, and cheaper through modern, reliable, and data‑driven technologies. You will lead technical initiatives on a brand new Inventory and Promise platform that provides inventory visibility, promised delivery dates, and fulfills orders.

Key Responsibilities: Serve as a technical lead on demanding, cross‑functional projects involving Inventory and Promise. Architect and design new microservices and machine‑learning pipelines. Decompose complex problems into simple, straightforward solutions. Apply expert knowledge in performance, scalability, and enterprise distributed architecture. Mentor peers and help managers with career growth. Influence multiple teams, sharing deep knowledge.

Qualifications: Bachelor’s or Master’s degree in Computer Science or equivalent.12+ years of software engineering experience, including Java.12+ years of experience leading large‑scale projects. Expertise in emerging platforms, Java, C/C++, operating system principles, and best practices. Strong understanding of backend scalable architecture and distributed systems. Experience with fault‑tolerant, high‑scale production systems. Experience building stream‑processing systems (Kafka, Spark‑Streaming).Knowledge of caching, storage techniques, and horizontally scalable architectures. Operational experience in large‑scale, high‑availability environments.

Preferred Experience: Scalable distributed systems and machine‑learning algorithms.eCommerce domain experience in Inventory and Promise. Java, Scala, and Python development. AWS experience; Java is a plus.