Senior Full Stack Engineer with AI

EPAM Systems; Poland; Hybrid; PLN 240,000 - 360,000; Full time

Job summary

EPAM Systems is seeking a Senior Full Stack Engineer with strong TypeScript and Node.js skills to help shape AI-native digital experiences at scale. The role is client-facing and requires collaboration with engineering leadership, with hybrid work in Poland (Gdansk or Krakow).

You will work across frontend and backend, design agentic systems, and contribute to AI dashboards and components, including Stencil and Angular integrations, while providing production support and on-call coverage.

Qualifications

• 5+ years of professional software development experience with TypeScript and Node.js across frontend and backend.

Responsibilities

• Architect, build, and maintain scalable backend services using Node.js and TypeScript
• Design, extend, and operationalize agentic systems with LangGraph (Node.js) or similar frameworks
• Provide 24/7 production support, on-call rotations, and incident resolution
• Collaborate with client engineering leads and distributed teams to align on technical direction
• Build AI-powered user experiences and dashboards including AI-native patterns

Skills

TypeScript

Node.js

Full-stack

Frontend/Backend

LangGraph

Stencil

Angular

AI/agentic systems

Tools

LangGraph

Stencil

Angular

OpenAI integration

Job description

We are looking for a highly skilled Senior Full Stack Engineer with deep TypeScript and Node.js expertise and hands-on experience building AI-driven, agentic systems. You will help shape next-generation digital experiences as we evolve toward a fully AI-native architecture - spanning intelligent agents, dynamic user interfaces, and the supporting infrastructure required to run them at scale. This is a client-facing role that requires close collaboration with engineering leadership, balanced work across the frontend and backend, and a passion for delivering production-ready AI experiences. You will contribute to new feature development while ensuring stability and support for live systems. Please note that hybrid work, 3 days from Gdansk or Krakow, is required.

Responsibilities

• Architect, build, and maintain scalable backend services using Node.js and TypeScript
• Design, extend, and operationalize agentic systems with LangGraph (Node.js) or similar frameworks
• Manage and evolve core agent infrastructure components: memory and context management, session lifecycle management, file spaces, document handling, and retrieval pipelines, evaluation frameworks (e.g., Morpheus or comparable tools)
• Develop AI-powered user experiences, including transitioning native web interfaces toward AI-native patterns, building an AI Center, and creating AI-driven dashboards (e.g., Digital Advisor for Client Assist use cases)
• Build reusable Stencil web components and integrate them into Angular-based applications (e.g., EAA)
• Contribute across the full stack with balanced frontend and backend ownership
• Provide 24/7 production support coverage, including participation in on-call rotations, incident handling, and timely resolution of production issues
• Collaborate directly with client engineering leads and distributed teams to align on technical direction and delivery milestones

Requirements

• 5+ years of professional software development experience, with demonstrated TypeScript expertise and a proven track record across both frontend and backend applications
• Significant backend development experience with Node.js and modern tooling
• Demonstrated experience building full-stack solutions with component-based frontend architectures
• Strong grounding in system design, scalability, performance optimization, and production operations
• Hands-on experience developing AI/agentic systems, including agent orchestration (LangGraph or equivalent frameworks), LLM integration (OpenAI, Anthropic, etc.), memory/context management for conversational or task-oriented agents, and evaluation and validation pipelines for AI models and workflows
• Familiarity with Stencil web components and their integration into Angular applications
• Experience building AI-enabled products or dashboards and understanding emerging AI-native UX patterns
• Comfortable providing production support, including participating in on-call rotations
• Nice to have Experience with Angular