Senior Full Stack Engineer – GenAI Web Applications

About the role

EPAM is seeking a Senior Full Stack Software Engineer to create fast, intuitive web interfaces and integration libraries for Generative AI and intelligent automation. You will work with multinational teams on innovative projects that deliver cutting‑edge solutions.

Key responsibilities

• Design and deliver end‑to‑end GenAI‑powered applications with a focus on responsive, low‑latency UI and client‑side API integration.
• Build and maintain reusable frontend component libraries, hooks, and design systems for enterprise GenAI apps.
• Implement LLM‑driven experiences using frameworks such as LangChain or LlamaIndex together with OpenAI, Claude, or Gemini.
• Collaborate with designers and product managers to iterate 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.

Required profile

• 3+ years of experience building production applications with React, TypeScript, or Vue for enterprise use cases.
• Solid full‑stack background covering frontend UI, REST APIs, and cloud microservices.
• Practical experience integrating GenAI features, LLM APIs, and prompt UI patterns.
• Strong Python skills and experience with AWS, Docker, and RESTful services.
• Upper‑intermediate English proficiency (B2+).

Required skills

• React, TypeScript, Vue
• Python
• AWS, Docker, REST APIs
• LangChain, LlamaIndex, OpenAI, Claude, Gemini
• SSE/WebSockets, real‑time streaming UX patterns
• WCAG 2.1 AA accessibility standards

What we offer

• International projects with top brands
• Healthcare benefits and paid time off
• Upskilling, reskilling and certification courses
• Unlimited access to LinkedIn Learning library
• Global career opportunities and volunteer programs