Lead Java Full Stack Engineer

Description

Summary: Seeking a nearshore Full Stack Lead Engineer to build and support commerce backend services and AI-driven checkout flows, collaborating across backend and frontend while ensuring scalable and compliant delivery. Highlights: 1. Build and support commerce backend services and AI-driven checkout flows 2. Lead technical decisions and delivery for innovative projects 3. Work with global teams on international projects for top brands We are seeking a nearshore **Full Stack Lead Engineer** to build and support commerce backend services and AI\-driven, agentic checkout flows with strong validation and guardrails. You will collaborate across backend and frontend components while ensuring scalable, reliable, compliant delivery—apply now. **Responsibilities** * Design backend services for commerce domain systems such as payment, loyalty, and promotions * Build REST APIs and microservices using Java and Spring Boot * Enable AI\-driven and agentic checkout flows with validations and guardrails * Implement scalable and reliable service patterns to meet performance needs * Ensure compliance and reliability standards across services and integrations * Develop and maintain selected frontend components using ReactJS * Integrate AI\-assisted workflows into backend systems using Anthropic Claude Code * Coordinate technical decisions and unblock delivery across nearshore collaboration * Operate within required US Pacific Time overlap through 4pm PST minimum **Requirements** * 5\+ years backend development experience with Java and Spring Boot * Practical production experience with Anthropic Claude Code * 5\+ years experience building REST APIs and microservices * Lead\-level experience guiding technical decisions and delivery * Commerce domain experience supporting payment, loyalty, promotion, or related systems * Cloud platform experience with GCP and/or Azure * Strong ability to overlap with US Pacific Time and cover until 4pm PST minimum * Production experience developing front\-end components with ReactJS * Exposure to AI\-assisted or agent\-based workflows and backend integrations * Adaptability and willingness to learn new tools, patterns, and technologies * Upper\-Intermediate English proficiency (B2\) **Nice to have** * CCA\-F certification * Apigee experience * JavaScript backend platform experience **We offer** * International projects with top brands * Work with global teams of highly skilled, diverse peers * Healthcare benefits * Employee financial programs * Paid time off and sick leave * Upskilling, reskilling and certification courses * Unlimited access to the LinkedIn Learning library and 22,000\+ courses * Global career opportunities * Volunteer and community involvement opportunities * EPAM Employee Groups * Award\-winning culture recognized by Glassdoor, Newsweek and LinkedIn