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Lead Full Stack Software Engineer

Role overview

Qualifications

  • 5+ years building production applications with React, TypeScript, or Vue for enterprise use cases
  • 5–8 years of full-stack software engineering experience spanning frontend UIs, REST APIs, and microservices
  • 2+ years integrating GenAI features, LLM APIs, and prompt UI patterns into web-based applications
  • Solid Python backend skills, along with 2+ years building and consuming cloud microservices on AWS, Docker, and REST APIs

Responsibilities

  • Architect and develop complete GenAI-powered applications, with a focus on intuitive web-based UIs and high-performing client-side API integrations
  • Craft responsive, accessible frontend interfaces designed for streaming responses and minimal latency
  • Construct and sustain a library of reusable frontend components, hooks, and design systems for enterprise-grade GenAI applications
  • Partner with designers and product managers to quickly iterate on innovative AI UX patterns, including chat assistants, prompt builders, and feedback loops

Key facts

Hard skills

Other skills

  • Communication
  • Teamwork
  • Problem Solving

About the company

EPAM Systems logo

EPAM Systems

IT Services & IT Consulting

Since 1993, EPAM Systems, Inc. (NYSE: EPAM) has used its software engineering expertise to become a leading global provider of digital engineering, cloud and AI-enabled transformation services, and a leading business and experience consulting partner for global enterprises and ambitious startups. We address our clients’ transformation challenges by fusing EPAM Continuum’s integrated strategy, experience and technology consulting with our 30+ years of engineering execution to speed our clients’ time to market and drive greater value from their innovations and digital investments. We make GenAI real with our AI LLM orchestration, testing and engineering solutions, EPAM DIAL, EPAM EliteA™ and EPAM AI/RUN™, respectively. We deliver globally, but engage locally with our expert teams of consultants, architects, designers and engineers, making the future real for our clients, our partners and our people around the world. We believe the right solutions are the ones that improve people’s lives and fuel competitive advantage for our clients across diverse industries. Our thinking comes to life in the experiences, products and platforms we design and bring to market. Added to the S&P 500 and the Forbes Global 2000 in 2021 and recognized by Glassdoor and Newsweek as a Top 100 Best Workplace, our multidisciplinary teams serve customers across six continents. We are proud to be among the top 15 companies in Information Technology Services in the Fortune 1000 and to be recognized as a leader in the IDC MarketScapes for Worldwide Experience Build Services, Worldwide Experience Design Services and Worldwide Software Engineering Services. Learn more at www.epam.com.

Company details

Company typeXLarge
IndustryIT Services & IT Consulting
Company size10001

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Job description

We're looking for a Lead Full Stack Software Engineer to create user-friendly, high-performing interfaces and frontend integration libraries that bring GenAI and intelligent automation capabilities to teams across IT, HR, Finance, Sales, Marketing, and Customer Support. Responsibilities Architect and develop complete GenAI-powered applications, with a focus on intuitive web-based UIs and high-performing client-side API integrations Craft responsive, accessible frontend interfaces designed for streaming responses and minimal latency Construct and sustain a library of reusable frontend components, hooks, and design systems for enterprise-grade GenAI applications Bring LLM-based experiences to life using frameworks such as LangChain or LlamaIndex paired with OpenAI, Claude, or Gemini Partner with designers and product managers to quickly iterate on innovative AI UX patterns, including chat assistants, prompt builders, and feedback loops Guarantee security, accessibility, observability, and thorough test coverage throughout client-side and full-stack builds Produce responsive, accessible, and high-performance web UIs suited to AI-driven interactions like streaming text, prompt inputs, citations, and summaries Sustain a shared library of reusable frontend components and hooks so internal teams can easily integrate GenAI capabilities into their own applications Build UI components that offer transparency, observability, and trust in AI-generated outputs Requirements 5+ years building production applications with React, TypeScript, or Vue for enterprise use cases 5–8 years of full-stack software engineering experience spanning frontend UIs, REST APIs, and microservices 2+ years integrating GenAI features, LLM APIs, and prompt UI patterns into web-based applications Solid Python backend skills, along with 2+ years building and consuming cloud microservices on AWS, Docker, and REST APIs Demonstrated track record building, documenting, and maintaining reusable component libraries, design systems, and custom hooks English proficiency at a B2+ level or higher Nice to have Experience with real-time streaming UX patterns, including SSE/WebSockets, prompt builders, citations, and summary UI components Understanding of WCAG 2.1 AA compliance and how to architect accessible UI components Hands-on skills with client-side or Node.js LangChain, LangGraph, or LlamaIndex orchestration Exposure to RAG pipelines, vector search platforms like Pinecone or OpenSearch, and embedding fundamentals Experience with AI evaluation tools, feedback loop design, and interface-level guardrails

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Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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