Backend Engineer • Senior

Who you are

You have 5+ years of backend engineering experience, building production systems that scale effectively — you've owned services from design through deployment and have navigated the complexities of debugging distributed systems. Your expertise in Java and Spring is deep — you've shipped high-throughput APIs that handle millions of requests and have strong opinions on service architecture and testing strategies. You understand the importance of REST APIs and have experience in designing them to ensure seamless integration with front-end services. Your problem-solving skills are top-notch, and you thrive in environments where you can innovate and push boundaries. You are a team player who enjoys collaborating with cross-functional teams to deliver exceptional user experiences. You are driven by a passion for technology and a desire to make a significant impact in the commerce industry.

Desirable

Experience with recommendation systems or personalized services is a plus, as is familiarity with cloud platforms like AWS or GCP. Knowledge of database optimization techniques and experience with NoSQL databases would be beneficial. You are comfortable working in a fast-paced environment and are eager to learn new technologies and methodologies.

What you'll do

As a Senior Backend Engineer at Coupang, you will be a key player in the Search & Discovery team, focusing on enhancing our product recommendation systems. You will design and implement scalable backend solutions that improve the quality of product recommendations and personalization for our customers. Your role will involve collaborating closely with data scientists and front-end engineers to ensure that our recommendations are not only effective but also seamlessly integrated into the user experience. You will participate in code reviews and contribute to the overall architecture of our systems, ensuring they are robust and maintainable. You will also be responsible for monitoring system performance and troubleshooting issues as they arise, ensuring that our services remain reliable and efficient. Your contributions will directly impact our mission to provide an unparalleled shopping experience for our customers.

What we offer

At Coupang, you will be part of a dynamic team that values innovation and creativity. We offer competitive compensation and benefits, along with opportunities for professional growth and development. You will work in a collaborative environment where your ideas are valued and encouraged. Our culture is one of continuous improvement, and we support our employees in their pursuit of excellence. Join us in our mission to revolutionize the commerce industry and make a lasting impact on the lives of our customers.