Lead Fullstack Engineer (JS/TS) - Enterprise Integrations

EPAM Systems; United States; Hybrid; USD 120,000 - 160,000; Full time

Job summary

EPAM Systems is seeking a Lead Fullstack Developer to shape architectural decisions and deliver enterprise-grade solutions. You will collaborate with product owners and cross-functional teams across regions, turning ambiguous requirements into concrete backlogs and pragmatic designs.

You will drive AI/LLM solution delivery, integrate with platforms like Salesforce and ServiceNow, and ensure secure, observable, and scalable implementations for production.

Qualifications

• Five-plus years of practical, relevant full-stack engineering experience.
• Minimum one year of experience directing and overseeing development teams.
• Deep proficiency in TypeScript/JavaScript combined with a contemporary frontend framework such as React or equivalent.
• Strong backend engineering background using Node.js or Python, with API and integration architecture.
• Proven track record delivering AI/LLM solutions, spanning tool calling, RAG, agent systems, MCP, prompt workflows, or similar production-grade experience.

Responsibilities

• Work in close coordination with product owners and stakeholders spanning IT, Sales, Finance, and HR, matching schedules to enable live collaboration.
• Turn ambiguous internal use cases into concrete architecture plans, UX/flow designs, API specifications, and a ready-to-build backlog for the team based in India.
• Architect and connect agentic workflows spanning enterprise platforms including Salesforce, ServiceNow, Jira, Glean, and Oracle HCM.
• Drive resolution of intricate integration work, spanning authentication setup, MCP tool access, data contract definition, RBAC design, error handling, and production go-live.
• Engage daily with the India-based team, clearing up requirements, conducting PR reviews, removing integration roadblocks, and ensuring release quality holds.
• Develop prototypes where necessary, spanning UI work, agent flow design, or MCP/LLM implementation, then pass a production-ready backlog over to the India team.
• Bake security, observability, and reusability into the build approach so each agent stands as a lasting solution rather than a throwaway demo.

Skills

Full-stack engineering

Team leadership

TypeScript/JavaScript

React

Node.js

Python

AWS

AI/LLM solutions

API design

RBAC/SSO

OpenTelemetry

Tools

React

Node.js

Python

AWS

OpenTelemetry

Salesforce

ServiceNow

Job description

EPAM Systems is seeking a Lead Fullstack Developer to shape architectural decisions and deliver enterprise-grade solutions. You will collaborate with product owners and cross-functional teams across regions, turning ambiguous requirements into concrete backlogs and pragmatic designs.

You will drive AI/LLM solution delivery, integrate with platforms like Salesforce and ServiceNow, and ensure secure, observable, and scalable implementations for production.