Senior Full Stack Software Engineer
Job in
Washington, District of Columbia, 20022, USA
Listed on 2026-10-03
Listing for:
EPAM Systems, Inc.
Full Time
position Listed on 2026-10-03
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 deliver end-to-end GenAI-powered applications with an emphasis on intuitive web UIs and efficient client-side API integrations
Build responsive, accessible frontend experiences optimized for streaming responses and low latency
Develop and maintain reusable frontend component libraries, hooks, and design systems for enterprise GenAI apps Implement LLM-driven experiences using frameworks such as Lang Chain or Llama Index together with OpenAI, Claude, or Gemini Collaborate with designers and product managers to iterate quickly on AI UX patterns like chat assistants, prompt builders, and feedback loops
Ensure security, accessibility, observability, and robust test coverage across client-side and full-stack work Create high-performance, accessible web UIs for AI interactions including streaming text, prompt inputs, citations, and summaries
Maintain shared libraries of reusable frontend components and hooks to help internal teams embed GenAI capabilities into their applications
Build UI components that provide transparency, observability, and trust in AI-generated outputs
Requirements3+ years of experience building production apps with React, Type Script, or Vue for enterprise use cases
Solid full-stack software engineering background across frontend UIs, REST APIs, and microservices
Practical experience integrating GenAI features, LLM APIs, and prompt UI patterns into web-based applications
Strong Python backend skills, plus experience building and consuming cloud microservices on AWS, Docker, and REST APIsProven track record creating, documenting, and maintaining reusable component libraries, design systems, and custom hooks
English proficiency at a B2+ level (Upper-Intermediate) or higher
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 approaches for architecting accessible UI components
Practical experience with client-side or Node.js Lang Chain, Lang Graph, or Llama Index orchestration
Exposure to RAG pipelines, vector search platforms like Pinecone or Open Search, and embedding fundamentals
Experience with AI evaluation tools, feedback loop design, and interface-level guardrails
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
Position Requirements
10+ Years
work experience
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