Senior ML/Evaluation Engineer

About the Position

Senior ML/Evaluation Engineer

We are building an Enterprise Agent Development Platform, a production-grade, cloud-native ecosystem that enables engineering teams to define, orchestrate, deploy, and observe AI agents at scale. The platform standardizes agent development across the organization. The initiative spans agent framework design, runtime architecture, marketplace integration, CI/CD automation, and enterprise-grade observability, reducing agent development from months to days while enforcing consistent security, quality, and governance standards.

Responsibilities

• AWS AgentCore Evaluation (on-demand mode for CI/CD gates, online mode for production sampling)
• LLM-as-judge evaluator design (built-in AgentCore evaluators - helpfulness, correctness)
• Custom code-based Lambda evaluators (Python - deterministic checks)
• Evaluation levels (TRACE for per-response, TOOL_CALL for per-invocation, SESSION for workflow)
• OTel spans from AWS AgentCore Observability as evaluation input
• Enterprise evaluation standard authoring (mandatory dimensions, pass/fail criteria)

Requirements

• 5+ years ML engineering or AI platform engineering
• LLM evaluation framework design and implementation
• Custom evaluator implementation for deterministic quality checks
• CI/CD deployment gate design for ML model or agent quality

Nice to Have

• AWS AgentCore Evaluation API hands-on (CreateEvaluation, GetEvaluationResult)
• AWS Bedrock Guardrails for PII detection evaluator integration
• CloudWatch metrics output from AgentCore Evaluation for online mode

We Offer

• Opportunity to work in a fast-paced, agile, software engineering culture
• Comfortable modern office in Prague 7, with support of hybrid or fully remote mode
• Benefit program (5 weeks of vacation, paid sick days, paid days off for special occasions, meal vouchers, flexi pass, Prague city public transport annual coupon, multisport cards, optional contribution to pension fund, health insurance for family member)
• EPAM Employee Stock Purchase Plan (ESPP) (subject to certain eligibility requirements)
• English language courses
• Czech language courses upon request
• Referral bonuses for recommended candidates
• Mobile Phone Tariff’s program for managerial-level candidates
• Great learning and development opportunities, including in-house professional training, career advisory and coaching, sponsored professional certifications, well-being programs, LinkedIn Learning Solutions and much more