Senior Fullstack JS Engineer — AI-Driven Feature Builder

EPAM Systems Inc; United States; Remote; USD 120,000 - 170,000; Full time

Job summary

EPAM Systems Inc. is seeking a Senior JavaScript/TypeScript Fullstack Engineer to build and ship production features end-to-end—from database to API to UI—while making AI-assisted development a core part of daily workflow.

You’ll own real feature work on our Node.js/React stack and work with PostgreSQL/Redis and cloud platforms. You will design, implement, test, review, and document full-stack solutions, apply prompt engineering, review AI-generated code, and collaborate with DevOps on

Qualifications

• 3+ years of professional experience as a full-stack engineer.
• Proficiency in JavaScript/TypeScript.
• Experience with Node.js and FE frameworks such as React or Angular.
• Experience with PostgreSQL, Redis, or similar databases.
• Experience with AWS, Azure, or GCP.
• Daily production experience with AI coding assistants.
• Ability to review AI-generated code critically.
• Strong prompt engineering skills.
• Fluent English (B2+).
• Nice to have Python knowledge.
• Experience in platform engineering, observability, reliability engineering.
• System design experience.
• Experience configuring multi-step agentic workflows with multiple MCP integrations.
• Comfortable managing parallel AI agents safely.
• Experience reviewing AI-generated PRs.
• Skills in designing reusable prompts and multi-step agentic flows.

Responsibilities

• Design, build, and ship full-stack features across the JavaScript/TypeScript stack (frontend, backend, and database).
• Own tasks end to end: implementation, testing, code review, and documentation.
• Use AI coding assistants daily to implement tasks, generate tests, debug, and explore the codebase.
• Apply prompt engineering and context management for reliable AI outputs.
• Critically review AI-generated code before merge.
• Integrate with cloud infrastructure (AWS/Azure/GCP) and third-party services.
• Participate in code reviews, architecture discussions, and sprint planning.
• Debug and resolve production issues across the stack with AI-assisted troubleshooting.

Skills

JavaScript

TypeScript

Full-stack

Node.js

React

Angular

PostgreSQL

Redis

AWS

Azure

GCP

Tools

GitHub Copilot

Cursor

Claude Code

Job description

EPAM Systems Inc. is seeking a Senior JavaScript/TypeScript Fullstack Engineer to build and ship production features end-to-end—from database to API to UI—while making AI-assisted development a core part of daily workflow.

You’ll own real feature work on our Node.js/React stack and work with PostgreSQL/Redis and cloud platforms. You will design, implement, test, review, and document full-stack solutions, apply prompt engineering, review AI-generated code, and collaborate with DevOps on