Senior Fullstack Engineer — AI-Powered Integrations

EPAM Systems Inc; United States; Remote; USD 100,000 - 150,000; Full time

Job summary

EPAM Systems is seeking a Senior Fullstack Developer to bridge business needs with technical execution in a distributed, cross-functional environment. You’ll shape architectures for enterprise integrations, work closely with India-based teams, and deliver AI/LLM-powered solutions with secure, observable backends.

You’ll own API design, backend/frontend delivery, and collaboration with stakeholders across IT, Sales, Finance, and HR.

Qualifications

• 3+ years of hands-on, relevant experience as a full-stack engineer with recent delivery work.
• Strong command of TypeScript/JavaScript and a modern frontend framework such as React.
• Backend development experience with Node.js or Python and API/integration design.
• Experience delivering AI/LLM-powered solutions including tool calling, RAG, or agents.
• Experience translating stakeholder discussions into architecture and actionable backlog.
• Proven AWS delivery experience (Lambda, API Gateway, ECS/EKS, S3, RDS/DynamoDB, IAM, CloudWatch).
• Experience with enterprise authentication methods such as SSO/Okta and RBAC.
• Ability to lead technical discussions in English with US-based stakeholders.

Responsibilities

• Coordinate with product owners and stakeholders to align working hours for real-time collaboration.
• Convert use cases into architecture, UX/flow, API contracts and a developable backlog for India-based team.
• Design and integrate workflows connecting Salesforce, ServiceNow, Jira, Glean, Oracle HCM.
• Own complex integration challenges including authentication, RBAC, error handling and production cutover.
• Collaborate daily with the India-based pod to clarify requirements and review PRs.
• Build prototypes for UI, agent flow, or MCP/LLM paths and transition to production backlog.
• Ensure security, observability and reusability so each agent is a durable asset.

Skills

Full-stack development

TypeScript/JavaScript

React

Node.js/Python backend

API design

AI/LLM solutions

AWS (Lambda, API Gateway, ECS/EKS, S3,

RBAC & SSO/Okta security

English communication

Stakeholder collaboration

Tools

OpenTelemetry

Job description

EPAM Systems is seeking a Senior Fullstack Developer to bridge business needs with technical execution in a distributed, cross-functional environment. You’ll shape architectures for enterprise integrations, work closely with India-based teams, and deliver AI/LLM-powered solutions with secure, observable backends.

You’ll own API design, backend/frontend delivery, and collaboration with stakeholders across IT, Sales, Finance, and HR.