Description Coupang is redefining the shopping experience to delight every customer—from the moment they open the Coupang app to the instant their order arrives at their doorstep. With a world-class end-to-end e-commerce and logistics network and an unwavering customer-first culture, Coupang continues to deliver unmatched speed, selection, and value. Having transformed the way millions of products, including fresh groceries, are delivered across South Korea—365 days a year, often within hours—Coupang is now bringing this revolutionary model to new markets. With its recent expansion into Taiwan, Coupang is extending its customer-centric innovation and operational excellence to many of Asia’s most dynamic e-commerce landscapes. These efforts mark a bold step in Coupang’s mission to set new standards in online retail, not only in Korea, one of the fastest-growing e-commerce markets globally, but across the region. Coupang is building a unified, global payroll platform designed to manage the complete lifecycle of employee compensation across all employment types—full-time, part-time, contract, and gig workers. This platform will ensure seamless integration and automation of payroll processing, incentive distribution, taxation compliance, and other core responsibilities across multiple geographies. By leveraging cutting-edge technologies and scalable architecture, the platform will deliver fast, accurate, and compliant payroll services tailored to local regulations and employee needs. It will also enable real-time insights and reporting, empowering HR and finance teams to make data-driven decisions. Through continuous innovation and a user-centric approach, the platform aims to simplify complex payroll operations, reduce administrative overhead, and enhance the employee experience globally. Key Responsibilities: <ul> <li>Architect and develop the One-Payroll system to ensure scalable, stable, and secure global operations.</li> <li>Design and implement front-end and back-end web services using the Java platform to support both employee-facing and administrative functions.</li> <li>Identify and manage cross-domain dependencies, ensuring seamless integration with internal systems and external services.</li> <li>Evaluate and adopt emerging technologies to enhance system performance, streamline development workflows, and support long-term maintainability.</li> <li>Develop optimized algorithms to automate rule-based processes, such as payroll calculations and incentive distributions, ensuring accuracy and cost-efficiency.</li> </ul> Essential Qualifications: <ul> <li>15+ years of professional experience in Java development, with deep expertise in object-oriented design and enterprise-grade application development.</li> <li>Demonstrated ability to design and implement large-scale, distributed system architectures that are robust, scalable, and secure.</li> <li>Proficient in Java and the Spring framework, with hands-on experience using Git for version control in collaborative development environments.</li> <li>Strong working knowledge of relational databases (e.g., Aurora, MySQL) and key-value datastores (e.g., DynamoDB, Redis).</li> <li>Experience with workflow orchestration tools such as Temporal or Cadence to automate and manage complex business processes.</li> <li>Familiarity with business rule engines (e.g., Drools, Camunda, or similar) to support dynamic and configurable business logic.</li> <li>Proficiency in Object-Relational Mapping (ORM) frameworks such as JPA or Hibernate, with solid experience in domain-driven design and modeling.</li> </ul> Preferred Qualifications : <ul> <li>Proven experience leading technology initiatives within the Payroll, Finance, or Accounting domains, with a deep understanding of domain-specific requirements and compliance standards.</li> <li>Proven track record of collaborating with cross-functional stakeholders, including Finance and Accounting teams, to translate business requirements into scalable technical solutions.</li> <li>Hands-on experience in developing and operating services in AWS, leveraging cloud-native tools and best practices.</li> <li>Strong focus on code quality, with a track record of implementing clean, maintainable, and scalable codebases.</li> <li>Experience in automating build, test, and deployment pipelines, ensuring continuous integration and delivery.</li> <li>Familiarity with bulk data processing using technologies like Hive, Spark, Flink, etc., especially in high-throughput environments.</li> <li>Practical experience working in Agile development environments, with a collaborative and iterative approach to product delivery.</li> </ul>