Senior GenAI Full-Stack Engineer: AI UI & LLM Apps

EPAM Systems; Chile; On-site; CLP 88,149,000 - 117,532,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off and sick leave

Upskilling, reskilling and certifi c at

LinkedIn Learning library access

Global career opportunities

Volunteer and community involvement

Award-winning culture

Job summary

EPAM Systems in Chile is hiring a Senior Full Stack Software Engineer to build fast, intuitive GenAI-powered UIs and integration libraries. You will connect to LLM APIs and cloud microservices while delivering accessible, low-latency patterns and reusable components.

You will collaborate with designers and product managers to iterate AI UX patterns, ensure security and test coverage, and maintain shared frontend libraries for enterprise GenAI apps.

Qualifications

• 3+ years building production apps with React, TypeScript, or Vue for enterprise use.
• Strong full-stack experience across frontend UIs, REST APIs, and microservices.
• Experience integrating GenAI features, LLM APIs, and prompt UI patterns.

Responsibilities

• Design and deliver GenAI-powered apps with intuitive UIs and client-side API integrations.
• Build responsive frontend experiences optimized for streaming, low latency.
• Develop reusable frontend libraries, hooks, and design systems for GenAI apps.
• Implement LLM-driven experiences using LangChain, LlamaIndex with OpenAI/Claude/Gemini.
• Collaborate with designers and product managers to iterate on AI UX patterns like chat assistants.
• Ensure security, accessibility, observability, and robust test coverage across client-side and full-stack work.
• Create high-performance UIs for AI interactions including streaming text, prompts, citations, summaries.
• Maintain shared libraries of components and hooks for embedding GenAI capabilities.
• Build UI components that provide transparency, observability, and trust in AI outputs.

Skills

React

TypeScript

Vue

Python

AWS

Docker

REST APIs

Full-stack

LLM APIs

English B2+

Tools

LangChain

LlamaIndex

OpenAI API

LangGraph

Pinecone

OpenSearch

Job description

EPAM Systems in Chile is hiring a Senior Full Stack Software Engineer to build fast, intuitive GenAI-powered UIs and integration libraries. You will connect to LLM APIs and cloud microservices while delivering accessible, low-latency patterns and reusable components.

You will collaborate with designers and product managers to iterate AI UX patterns, ensure security and test coverage, and maintain shared frontend libraries for enterprise GenAI apps.