We are building GenAI-powered web experiences with intuitive UI and low-latency integrations to bring automation into everyday enterprise workflows. As a Chief Full Stack Software Engineer, you will lead frontend UX patterns, reusable component libraries, and full-stack delivery across React/TypeScript/Vue and Python microservices on AWS. Apply now to help scale trusted AI experiences across the organization

Responsibilities

- Architect and deliver end-to-end GenAI-powered applications with intuitive web UIs and fast client-side API integrations
- Engineer responsive, accessible frontend experiences optimized for streaming responses and low latency
- Develop and evolve reusable frontend components, custom hooks, and design systems for enterprise GenAI applications
- Implement LLM-driven features using frameworks like LangChain or LlamaIndex with OpenAI, Claude, or Gemini
- Partner with designers and product managers to iterate quickly on AI UX patterns including chat assistants, prompt builders, and feedback loops
- Enforce security, accessibility, observability, and test coverage across client-side and full-stack work
- Create high-performance, accessible web UIs for AI interaction patterns such as streaming text, prompt inputs, citations, and summaries
- Maintain shared component and hook libraries so internal teams can embed GenAI capabilities into their applications
- Deliver UI components that increase transparency, observability, and user confidence in AI-generated outputs

Requirements

- Proven track record with React, TypeScript, or Vue in production for enterprise web applications (7+ years)
- Extensive full-stack engineering experience delivering frontend UIs, REST APIs, and microservices (7+ years)
- Hands-on background integrating GenAI features, LLM APIs,



and prompt UI patterns into web applications (3+ years)
- Advanced Python backend development skills, including building and consuming cloud microservices on AWS with Docker and REST APIs (3+ years)
- Demonstrated ability to build, document, and maintain reusable component libraries, design systems, and custom hooks
- English proficiency at B2+ (Upper-Intermediate) level
- Working knowledge of GraphQL for client-server data interactions
- Practical experience with LangChain or LlamaIndex in JavaScript/Node.js contexts
- Familiarity with Model Context Protocol concepts and integration considerations
- Exposure to React Native for shared UI patterns across web and mobile surfaces
- Understanding of vector databases and embedding concepts used in RAG-style applications

Nice to have

- Familiarity with real-time streaming UX patterns such as SSE/WebSockets, 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 LangChain, LangGraph, or LlamaIndex orchestration
- Familiarity with RAG pipelines, vector search tools like Pinecone or OpenSearch, 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 LinkedIn Learning library and 22,000+ courses
- Integral career opportunities
- Volunteer and community involvement opportunities
- EPAM Employee Groups
- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

📌 Chief Full Stack Software Engineer (Argentina)
🏢 EPAM Systems
📍 Argentina