Senior Full Stack Engineer with AI

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

We offer

• We gather like-minded people:
• • Top tech minds driving innovation in AI, cloud and digital platform modernization
    • Supportive team and agile, startup-like culture
    • Hybrid by design mode and opportunity to work remotely within Poland
    • Chance to work abroad for up to 60 days annually
    • Business-driven relocation opportunities
• We provide growth opportunities:
• • Career development programs
    • Thought leadership, mentoring, soft skills and well-being programs
    • Certification (Anthropic, Gemini, GCP, Azure, AWS)
    • English classes
• We cover it all:
• • Stable pay
    • Participation in the Employee Stock Purchase Plan with a 15% discount
    • Benefits package (health insurance, multisport, shopping vouchers)
    • Referral bonuses up to $2,000
    • Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more
    • Corporate, social and well-being events
• Please, note:
• • Benefits listed above are available to employees only
    • We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually
    • We will reach out to selected candidates exclusively

EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.