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 dataEnsure 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 scaleDebug 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 mindsetRequirements3+ 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 higherWe offerWe 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 opportunitiesWe provide growth opportunities:

Career development programs

Thought leadership, mentoring, soft skills and well-being programs

Certification (Anthropic, Gemini, GCP, Azure, AWS)

English classesWe cover it all:

Stable payParticipation in the Employee Stock Purchase Plan with a 15% discount

Benefits package (health insurance, multisport, shopping vouchers)

Referral bonuses up to $2,000Offices 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 onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe 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.