Lead Full Stack Software Engineer
Job in
Washington, District of Columbia, 20022, USA
Listed on 2026-10-04
Listing for:
EPAM Systems, Inc.
Full Time
position Listed on 2026-10-04
Job specializations:
-
Software Development
Full Stack Developer, Front End Developer, AI Engineer (Applied/Software), React.js
Job Description & How to Apply Below
Responsibilities Design and build end-to-end GenAI-powered applications, emphasizing intuitive web-based UIs and performant client-side API integrations
Develop responsive, accessible frontend interfaces engineered for streaming responses and low latency
Build and maintain a library of reusable frontend components, hooks, and design systems for enterprise GenAI applications
Implement LLM-based experiences using frameworks like Lang Chain or Llama Index with OpenAI, Claude, or Gemini Collaborate with designers and product managers to iterate rapidly on novel AI UX patterns such as chat assistants, prompt builders, and feedback loops
Ensure security, accessibility, observability, and test coverage across client-side and full-stack implementations
Create responsive, accessible, and high-performance web UIs tailored for AI-driven interaction patterns like streaming text, prompt inputs, citations, and summaries
Maintain a shared library of reusable frontend components and hooks that enable internal teams to drop GenAI capabilities into their applications
Deliver UI components that provide transparency, observability, and confidence in AI-generated outputs
Requirements5+ years of production experience with React, Type Script, or Vue for enterprise web applications5–8 years of software engineering experience across the full web stack, including frontend UIs, REST APIs, and microservices2+ years of experience integrating GenAI features, LLM APIs, and prompt UI patterns into web applications
Strong Python backend development skills and 2+ years of experience consuming and building cloud microservices on AWS, Docker, and REST APIsProven experience building, documenting, and maintaining reusable component libraries, design systems, and custom hooks
Proficiency in English at a B2+ level
Nice to have Familiarity with real-time streaming UX patterns such as SSE/Web Sockets, prompt builders, citations, and summary UI components
Knowledge of WCAG 2.1 AA compliance and accessible UI component architecture
Skills in client-side or Node.js Lang Chain, Lang Graph, or Llama Index orchestration
Familiarity with RAG pipelines, vector search tools like Pinecone or Open Search, and embedding concepts
Background in AI evaluation tooling, feedback loops, and guardrails in user interfaces
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 Linked In Learning library and 22,000+ courses
Global career opportunities
Volunteer and community involvement opportunitiesEPAM Employee Groups Award-winning culture recognized by Glassdoor, Newsweek and Linked In
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