Sr. Staff, Back-end engineer [Promise Platform]

Description 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 more effortless than ever, we are collectively disrupting the multi-billion-dollar e-commerce industry from the ground up. We’re one of the fastest-growing e-commerce companies with an unparalleled reputation for being a dominant 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 significant 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 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 to create an epic experience in this always-on, high-tech, hyper-connected world. Role Overview Coupang relies on technology to provide on time, fast delivery of products to customers every day. The Global Inventory and Promise Systems organization (GIPS) is responsible for promises made to customers around inventory, serviceability, and delivery dates. And based on that promise, optimizes for fulfillment such that fulfillment can happen at the lowest possible cost while maintaining the promise date. This creates unique tech challenges in terms of low-latency event processing, low-latency data serving, and consistency challenges. Building highly available, low latency, scalable, strong, consistent systems to handle billions of promise requests made per day is a complex architectural challenge. The ideal candidate will have excellent engineering skills, business sense, and rich experience leading the build of extensible and scalable solutions to solve complex business features. What You Will Do Lead and drive architecture design of Fulfillment Optimization systems for scale, consistency, low latency, future extensibility, and reliability. Envision and drive alignment with stakeholders of the appropriate roadmap and future technology direction for Fulfillment Optimization systems. 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.” Participate in the architecture, development, testing, deployment, and delivery of large-scale global software applications, systems, platforms, services, or technologies. Write code when necessary to lead by example and help with high-priority projects. Basic Qualifications 8+ years of experience working directly within engineering teams in a fast-moving environment. 8+ years of experience in developing and operating backend services and web applications for low latency servicing and messaging systems using complex event processing. 8+ years of experience architecting and designing (architecture, design patterns, reliability, and scaling) of new and current systems. Experience building complex, high-performance, highly available distributed software systems successfully delivered to customers. Experience in collaborating with cross-functional teams to define mission, vision, and roadmaps. Experience partnering with product and program management teams. Preferred Qualifications Experience on creating simulation systems that would simulate outputs coming from Operation research optimization algorithms for data especially for an E-commerce infrastructure. Experience with distributed cache such as Apache Ignite, Redis, etc., with distributed pro ... (truncated, view full listing at source)