Senior AI Engineer

We are seeking a skilled Senior AI Engineer to join our team and build evaluation-driven, secure, and scalable agentic systems. In this role, you will architect multi-agent workflows, engineer robust tool interfaces, and code AI-first every day. We value an 80% mindset and 20% skills approach, prioritizing evaluation-driven engineering discipline and the honesty to say what a demo hides over proficiency in any single framework.
Responsibilities
Architect, build, and orchestrate complex multi-agent workflows using LangGraph and LangChain to handle sophisticated queries
Develop and maintain reliable tool definitions for interacting with complex internal APIs, ensuring the AI can accurately parse, validate, and utilize data
Build and optimize Retrieval-Augmented Generation (RAG) systems to ground model responses in proprietary data
Ensure AI responses are structured for rich UI rendering, enabling the generation of dynamic graphs, charts, and interactive elements
Create rigorous testing frameworks, evaluation pipelines, and metrics to assess agent performance, reliability, and accuracy in production
Take validated prototypes to production readiness, addressing guardrails, security, cost, and scale
Debug and optimize multi-agent workflows with a focus on asynchronous execution, state management, and concurrency
Deploy and maintain production-grade AI applications with a strong DevOps mindset
Requirements
3+ years of relevant experience in AI Engineering or a related field
Proficiency in Python and the modern AI engineering stack
Expertise in LangChain, LangGraph, and OpenAI SDK
Familiarity with Hugging Face Transformers and multi-agent workflow optimization
Skills in asynchronous execution, state management, and concurrency
Background in designing and integrating with complex REST and GraphQL endpoints
Competency in handling structured data formats (JSON, XML) for tool calling
Hands-on experience with containerization using Docker
Knowledge of cloud platforms such as AWS, GCP, or Azure for deploying production-grade AI applications
Understanding of vector databases (Pinecone, Weaviate, Chroma) and embedding strategies for semantic search and RAG implementation
English proficiency at an Upper-Intermediate level (B2) or higher
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.

Work arrangement
Yes