Senior AI/ML Engineer
Hybrid · Kraków, Lesser Poland, Poland
Job Summary
Senior AI/ML Engineer responsible for owning and evolving the production AI engine, designing agentic workflows end-to-end, and delivering measurable quality improvements. Responsibilities include architecting context strategies, managing tool interfaces and agent state, driving AI quality with eval sets and failure analysis, operating production AI observability (tracing, cost and latency), and writing solid Python backend services (APIs, microservices, databases). The role emphasizes clean code, robust testing, and on-call ownership, with a focus on building scalable, cost-aware AI-powered features in production.
Required Qualifications
- 3+ years shipping AI/LLM-powered features in production
- Hands-on context architecture design: Prompt engineering, structured outputs, schema validation, few-shot design
- Experience building and operating agentic systems: Tool interface design, orchestration patterns, failure handling, agent state management, multi-turn conversations
- Systematic approach to AI quality: Eval sets, success criteria definition, failure pattern analysis, evidence-based iteration
- Production AI observability: Tracing LLM calls and agent steps, cost monitoring, latency tracking, incident investigation
- Proficiency in Python (production-grade, enterprise experience)
- Solid backend fundamentals: APIs, microservices, SQL database design and optimization
- Daily hands-on use of AI development tools (Cursor, Claude Code, Copilot, or similar)
- Fluent English (written and verbal)
- Self-driven, product-minded, no hand-holding needed
- Has owned a non-trivial AI feature or agentic workflow in production for 12+ months
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