Senior Staff Backend Engineer at Coupang

Coupang stands out as a major e-commerce company in South Korea, recognized for its reliability and drive to innovate. The company blends the energy of a startup with the scale and resources of a global public business. Teams move quickly, launching new services and growing rapidly. Employees are encouraged to take ownership and help shape the future direction of commerce. Role overview The Staff Backend Engineer - Application Infrastructure will be part of the Application Infrastructure team, working on foundational systems that support Coupang’s complex workflows. This position is greenfield, offering the chance to design and build core backend infrastructure from the ground up. The systems developed will enable fast workflow creation for various domain teams, including those responsible for Coupang’s rocket delivery service. The impact of this work reaches systems that handle hundreds of millions of dollars in revenue. Location Mountain View, USA Seattle, USA

Role overview Coupang seeks a Senior Staff Backend Engineer based in Mountain View or Seattle. This position leads the design and implementation of scalable backend systems that power Coupang’s ecommerce platform. Key responsibilities Shape architecture decisions for backend services supporting millions of customers Collaborate with engineers to develop and maintain reliable, high-performance systems Use modern technologies to improve service quality and customer experience Team environment Work alongside an experienced engineering team dedicated to building and enhancing the core services that drive Coupang’s global ecommerce operations.

Coupang is a major force in South Korean e-commerce, focused on making daily life easier for millions of customers. The company combines the energy of a startup with the reach and stability of a global public business, supporting rapid innovation and new service launches. Team members value initiative, growth, and the opportunity to make a real impact. About the Role The Senior Staff Software Engineer - Security will play a central role in strengthening the security and reliability of Coupang’s core platforms. This position is based in Mountain View or Seattle. The work centers on technical leadership, architecture, and hands-on software development. The goal: build secure, dependable, and scalable systems that support Coupang’s growth and protect customer trust. What You Will Do Lead security architecture and design for backend systems Drive technical decisions that improve platform security, quality, and reliability Mentor and guide fellow engineers on security best practices Collaborate closely with product teams on high-impact projects Contribute directly to codebases, setting high standards for secure development What We’re Looking For Extensive experience in software engineering with a focus on security Strong background in building and scaling secure backend systems Proven ability to provide technical leadership and architectural direction Experience mentoring engineers and collaborating across teams Join Coupang to help shape the future of commerce and make a lasting difference in a high-tech, connected world.

Join Coupang as a Senior Staff Machine Learning Engineer in our AI Foundations team, where you will be at the forefront of developing innovative machine learning solutions that enhance customer experiences. This role involves designing, implementing, and optimizing algorithms and models that drive intelligent decision-making and automation within our platforms.

Coupang is expanding its influence in global e-commerce, with roots in South Korea and a growing presence in the Taiwanese market and beyond. The company combines the energy of a startup with the resources of a public company, encouraging initiative and innovation across all teams. The Senior Staff II, AI Engineer - Search (L7-2) position is based in Mountain View, USA. This role centers on designing and architecting applications that use Generative AI and Large Language Models (LLMs) as foundational technology. The aim is to build AI-native systems from the ground up, delivering new customer experiences and improving operational efficiency. Role overview The Senior Staff II, AI Engineer will lead projects that involve the full lifecycle of large-scale, non-deterministic AI systems. Responsibilities include rapid prototyping, architectural design, and deploying solutions into production environments. This position requires a full-stack AI approach, applying advanced LLMs to address complex technical challenges and set new standards for product development. Key responsibilities Own the design and architecture of AI-native applications, using Generative AI and LLMs as core components. Drive projects from initial concept through to production deployment, ensuring solutions operate at scale. Apply a full-stack AI perspective to solve challenging problems and create new product models. Demonstrate a track record of moving pioneering AI ideas from inception to real-world impact. Impact This role is central to Coupang’s innovation strategy, shaping the future of product intelligence and customer experience. The position offers the chance to influence the direction of AI-driven commerce and contribute to the company’s ongoing growth and transformation.

At Coupang, we are dedicated to delivering an exceptional experience for our customers. Our goal is to elicit the reaction, "How did we ever live without Coupang?" With a relentless passion for simplifying shopping, dining, and living, we are transforming the multi-billion-dollar e-commerce landscape from the ground up. We have rapidly emerged as one of the leading e-commerce companies in South Korea, known for our reliability and innovation. We embody the best of both worlds — a startup-like atmosphere paired with the resources of a global public enterprise. This unique combination propels our growth and accelerates the launch of new services, maintaining the swift pace we established at our inception. Our team is filled with entrepreneurial spirits eager to initiate new projects and innovations. At Coupang, you will witness personal, team, and company growth each day. Our mission to revolutionize commerce is genuine. We continuously push the limits of what is achievable, tackling challenges and dismantling traditional trade-offs. Join Coupang and contribute to creating an extraordinary experience in today’s fast-paced, technologically advanced, and interconnected world. Role Overview As a Senior Staff Software Engineer in the ML Infrastructure team for Search & Discovery, you will be tasked with designing and implementing robust and efficient software solutions that manage vast amounts of structured and unstructured data necessary for training complex machine learning models and serving them effectively online. The Search & Discovery team is pivotal in optimizing our customers' navigation experience and driving sustained growth. Each week, over 20 million customers utilize search on our app or coupang.com, with more than a third making purchases. A significant portion of Coupang's sales is directly linked to search and recommendation features, with many business strategies and growth initiatives being influenced by ranking and recommendation algorithms. This position offers a chance to develop scalable offline and online machine learning platforms to support ranking, recommendation, and business decision-making. You will work with billions of user interaction records and petabytes of raw log files, converting them into actionable data formats for engineers and scientists. Additionally, you will be responsible for delivering complex machine learning models in real-time, facilitating millions of Coupang customers in discovering and searching for products. If you are passionate about big data engineering, scalable serving systems, and making a tangible business impact, this role is an excellent fit for you.

Coupang is hiring a Senior Staff II, Machine Learning Engineer (Tech Lead) for the Search team in Mountain View, USA. This position centers on building and enhancing the core technology behind search for one of South Korea’s largest e-commerce platforms. Role overview This role focuses on designing, developing, and refining machine learning systems that directly impact how millions of people shop online. As a technical lead, expect to work on projects that shape the search experience and improve the accuracy and speed of results for Coupang’s customers. Team and culture Coupang encourages teams to launch new initiatives and solve complex problems. Employees regularly see the results of their work, both in personal growth and in the company’s progress. The culture blends the drive of a startup with the stability and resources of a global public company. What makes this role unique Work on technology that influences how millions shop online. Join a team that prioritizes innovation and ongoing improvement. Contribute to a company known for transforming e-commerce in South Korea. Experience the energy of a startup with the support of a global organization. This is a chance to help define the future of commerce as part of Coupang’s technology-driven Search team.

Please complete the attached Internal Transfer Request Form and submit.Ensure that you apply using your Coupang email address.This role is open to both Mountain View and Seattle locations.At Coupang, we are dedicated to astonishing our customers. When we hear our customers exclaim, “How did we ever live without Coupang?” we know we are on the right track. Fueled by a commitment to simplify shopping, dining, and living, we are revolutionizing the multi-billion-dollar e-commerce sector from the ground up. As one of the fastest-growing e-commerce companies, we are seeking passionate individuals to join our innovative team.

Coupang is looking for a Staff Backend Engineer focused on Application Infrastructure to help shape the backbone of its large-scale e-commerce platform. This position is based in Mountain View or Seattle. Role overview This role centers on building and maintaining backend systems that are both scalable and reliable. The work supports the platform's growth and ensures that applications perform well under heavy demand. What you will do Design, develop, and maintain backend applications for Coupang’s e-commerce infrastructure Work closely with teams across the company to deliver solutions that meet business and technical needs Focus on system performance, reliability, and security throughout the development process Collaboration Expect to partner with engineers, product managers, and other stakeholders to deliver backend systems that serve millions of users.

Coupang is a global commerce business with a mission to simplify shopping, dining, and daily routines. The company brings together the energy of a startup with the scale and resources of a major public organization, supporting fast growth and frequent rollouts of new services. Teams at Coupang work with colleagues who are entrepreneurial and eager to launch new projects. The culture values ambition and encourages individuals to make a tangible difference in their roles. Coupang actively challenges industry standards and takes on complex challenges, aiming to redefine how people interact with commerce around the world.

About CoupangCoupang is on a mission to delight our customers. We strive to create an experience that makes our customers wonder how they ever lived without us. As a trailblazer in the e-commerce industry, we are revolutionizing shopping, dining, and living by leveraging cutting-edge technology and innovation. We have rapidly grown to become one of the leading e-commerce companies in South Korea, earning a reputation for reliability and excellence.We embody the spirit of a startup while enjoying the resources and stability of a large global public company. Our environment fosters entrepreneurship, allowing us to continuously innovate and launch new services at a remarkable pace. At Coupang, we value hands-on contributions and encourage our team members to take initiative and make a tangible impact.We are excited to announce the formation of an innovative startup within Coupang dedicated to the in-house development of Robotics and Automation technology aimed at enhancing our fulfillment and logistics network. The Global Operations Automation and Robotics Technology (GO ART) team is tasked with designing and implementing state-of-the-art automation and robotics solutions that will redefine logistics at Coupang. This is a unique opportunity to join a pioneering team within a top e-commerce company in Asia, with offices located in Mountain View, Seoul, or Seattle.

Join Coupang as the Senior Director of Search AI within our Production Engineering team. In this pivotal role, you will lead the development and implementation of cutting-edge AI technologies that enhance our search capabilities. You will collaborate with cross-functional teams to drive innovation and optimize user experience across our platform.

At Coupang, we strive to amaze our customers. We want to hear them say, "How did we ever live without Coupang?" Our mission is driven by a passion for simplifying shopping, dining, and everyday living. As a key player in the multi-billion-dollar e-commerce sector, we are rapidly transforming the industry from the ground up. Proudly recognized as one of the fastest-growing e-commerce platforms, we have built an exceptional reputation as a reliable leader in South Korean commerce.Coupang embodies the best of both worlds: a dynamic startup culture combined with the resources of a large, globally recognized public company. This unique environment empowers us to foster growth and introduce innovative services at an unprecedented pace. We cultivate an entrepreneurial spirit, offering opportunities to initiate and drive new projects. Our team is composed of ambitious individuals eager to make a tangible impact, and at Coupang, you will witness both personal and professional growth alongside your colleagues and the company as a whole.Join us in our commitment to revolutionizing the future of commerce. We continuously challenge the limits of what's possible, ensuring that we remain at the forefront of the industry.

Waymo is a pioneer in autonomous driving technology, dedicated to becoming the world's most trusted driver. Originating from the Google Self-Driving Car Project in 2009, Waymo has developed the Waymo Driver—The World’s Most Experienced Driver™—to enhance mobility access while preventing countless traffic-related fatalities. The Waymo Driver powers our fully autonomous ride-hail service and can be integrated across various vehicle platforms and applications. Having completed over ten million rider-only trips, the Waymo Driver has autonomously navigated more than 100 million miles on public roads and tens of billions in simulated environments across 15+ U.S. states.Join the In-Car Experience team at Waymo, where we focus on how riders interact with our cutting-edge autonomous vehicle technology. We are responsible for designing and developing the user-facing software and systems within the vehicle, ensuring a safe and intuitive experience for every journey. Be part of our mission to shape the future of in-car interactions for autonomous ride-hailing.In this role, you will take ownership of the backend systems and API interfaces that enhance the rider experience, serving as a crucial link between the autonomous vehicle, the cloud infrastructure, and user-facing applications.

The OpportunityAre you a seasoned Staff Software Engineer, Backend (Infrastructure) eager to drive transformative change at the convergence of scalable web services and state-of-the-art AI technologies? Join us at Otter.ai, where we are on the lookout for a skilled engineer to spearhead the development, deployment, and oversight of web services and infrastructure that fuel our AI-driven products and initiatives. In our vibrant engineering team, you will collaborate closely with AI researchers, product managers, and technology experts to deliver innovative solutions that significantly enhance the experiences of end-user professionals and enterprise clients across various sectors.Your ImpactUtilize your vast expertise in Python to design and refine backend systems that seamlessly integrate with machine learning and AI functionalities.Craft and execute robust business logic using web frameworks such as Django, ensuring full compatibility with AI components and integration with MySQL.Architect scalable solutions employing technologies like Nginx, Kafka, MySQL, Cassandra, Redis, and big data platforms to support advanced AI models and workflows.Produce reusable, efficient, and maintainable code that underpins our high-performance applications, delivering exceptional user experiences.

Coupang stands out as a leading e-commerce company in South Korea, recognized for its commitment to customer satisfaction. The organization blends the agility of a startup with the scale and resources of a global public company. Teams here move quickly, launching new services and products while supporting growth at both the individual and company level. Role overview The Staff AI Engineer - Search & Discovery leads the design and development of applications centered on Generative AI and Large Language Models (LLMs). This position shapes how Coupang builds AI-native systems that enhance both customer and operational experiences. The work involves managing the complete lifecycle of large-scale, unconventional applications and adapting them to meet evolving user needs. What you will do Lead the design and development of AI-driven applications, focusing on Generative AI and LLMs Drive projects that build AI-native systems for search and discovery Oversee the lifecycle of high-scale, non-traditional applications Collaborate with teams to deliver solutions that address changing user needs Requirements Experience leading projects based on Generative AI and Large Language Models Background in building and scaling AI-native systems Ability to manage complex application lifecycles from design through deployment Interest in advancing commerce through technology This position is based in Mountain View, USA.

Join our innovative team at Commure as a Staff Backend Engineer, where you'll play a crucial role in developing cutting-edge backend solutions that empower healthcare organizations to improve patient experiences. You will work closely with cross-functional teams to design, implement, and maintain robust backend services that are scalable and efficient.

Join our team as a Senior Backend Engineer in Customer Engineering!At Level AI, we are reshaping customer interactions through innovative technology. Founded in 2019 and backed by Series C funding, our headquarters in Mountain View, California, is at the forefront of transforming contact centers into strategic assets through our AI-native platform. Our technology utilizes cutting-edge Large Language Models to extract invaluable insights from customer engagements, enabling businesses to enhance their customer experience and foster growth.As a Senior Backend Engineer, you will play a crucial role in empowering contact center stakeholders with real-time insights that drive data-informed decisions. You will collaborate on high-impact projects alongside experts from top tech companies such as Amazon, Facebook, and Google. Expect a rewarding journey filled with learning, growth, and the opportunity to redefine possibilities in AI-driven enterprise applications. Ready to join us?

At Commure, we are dedicated to transforming the healthcare landscape by simplifying the way care is delivered. Our vision is to elevate the healthcare experience, establishing a new benchmark for efficiency and effectiveness across the industry. Our innovative suite of AI-driven solutions encompasses ambient AI clinical documentation, provider copilots, autonomous coding, revenue cycle management, and beyond. These tools empower both providers and administrators to concentrate on what truly matters: delivering exceptional care.In a healthcare industry valued at $4.5 trillion, with over $500 billion allocated annually to administrative expenditures, Commure is at the forefront of this transformation. Our technology supports more than 500,000 clinicians across diverse care sites nationwide, facilitating over $10 billion in transactions and enabling over 100 million patient interactions. With exciting product launches on the horizon and plans for expansion into new care segments, we aim to transition from an innovative disruptor to the industry standard within the next few years.Commure has recently been recognized in Fortune’s Future 50 list for 2025 and is backed by renowned investors such as General Catalyst, Sequoia, Y Combinator, Lux, Human Capital, 8VC, Greenoaks Capital, Elad Gil, and others. With over 300% year-over-year growth for the past two years, we are just getting started. The moment for AI-powered transformation in healthcare is now, and we are building the technology to drive it forward. Join us in shaping the future of healthcare.About the RoleAs a part of our engineering team at Commure, you will play a pivotal role in revolutionizing healthcare technology by designing and scaling the systems that power our healthcare products. We are seeking a passionate Senior Backend Engineer who thrives on creating user-friendly, responsive, and secure systems that operate reliably at scale. If you enjoy tackling significant challenges in healthcare and have a penchant for rapid delivery, we want you on our team!What You’ll DoArchitect and influence decisions regarding our backend infrastructure for scalable, AI-driven healthcare solutions.Collaborate within a dynamic team that celebrates ambition and swift decision-making.Engage with the entire technology stack, including but not limited to Python, cloud services, and database management.