Staff Engineer - SRE

Site Reliability Engineers (SREs) at Coupang is a mission-critical role which combines software and system engineering to build, run and scale our complex, large-scale ecommerce systems. As part of the Site Reliability Engineering team, you will be responsible for ensuring all our customer facing services are healthy, monitored, automated, and designed to scale.

You will serve as a hands-on Senior Staff Engineer who will be dedicated to review critical services design, architecture reviews, re-architect, set performance / reliability / availability benchmarks, tuning and owner to work with specific system team on fundamental design improvements, track incidents to close architecturally, and work with domain team to close functionally.

As SRE organization we take pride in handling operations as an engineering problem with automation first approach. You will use your background to build best in class infrastructure automation for areas such as Observability, Incident management, Disaster Recovery, Load testing, Capacity engineering and many more. In this role you will work very closely with our product development teams from an early stage of design to all the way helping resolve any production incidents, maintaining SLI/SLA bar for production services and influencing them with SRE principles and best practices.

If you take pride in complete ownership, have a passion for solving complex technical challenges for large scale distributed systems and demeanor to work and communicate effectively across team boundaries, this is the role for you!

• Serve as a primary point responsible for the reliability, health, and performance of all Coupang customer-facing services.

• Gain deep knowledge of Coupang application workflow and dependencies.

• Spearheading and conceptualizing revolutionary designs in critical service architecture.

• Conducting comprehensive architecture reviews leading re-architecting initiatives to set industry leading benchmarks in performance, reliability and availability.

• Lead and drive large scale technical initiatives across multiple engineering teams.

• Be able to drive collaboration effectively across organizational boundaries, be able to build strong stakeholder relationships to achieve broad organizational objectives.

• Identify and implement scalable solutions for complex technical problems. Be the change driver.

• Self-motivated to be able to navigate the ambiguity with large initiatives and find solutions to accomplish the goal.

• Be the SRE champion/lead working with rest of the technical leaders across Coupang to define and drive the engineering roadmap.

• Contribute towards hiring and building a world class team. Mentor and coach junior engineers on the team.

• Communicate effectively with people at all levels of the organization.

Essential Qualifications:

• At least 12 years of industry experience building and operating large scale distributed systems.

• Deep UNIX/Linux systems knowledge and administration background.

• Strong programming skills in one or more of: Python, Java, Golang, C++.

• Strong problem-solving and analytical skills spanning systems, network (TCP/IP) and code, with a focus on data-driven decision-making.

• Proficient with cloud-based infrastructure, including AWS, Azure, or Google Cloud Platform.

• Strong understanding of DevOps and SRE practices, including continuous integration, continuous delivery, and infrastructure as code (IaC).

• Knowledge of observability ecosystem including metrics, logging, tracing and tools, such as

• Prometheus, Grafana, Elastic Stack, Datadog, or New Relic.

• Excellent communication and collaboration skills, with the ability to work with teams across distinct functions and technical domains.

Preferred Qualifications:

• Masters degree in computer science, Engineering, or a related technical field.

• Prior experience working with large scale web-based Java architectures and JVM configuration.

• Professional certifications in cloud platforms, monitoring tools, or related technologies.

• Previous experience working on a large-scale ecommerce platform.