Senior Automation Tester in Python

We are looking for a Senior Automation Tester in Python to own functional, security and performance test suites for the agentic gateway within our Enterprise Agent Development Platform — a production-grade, cloud-native ecosystem that enables engineering teams to define, orchestrate, deploy, and observe AI agents at scale.

Responsibilities

• Validate agentic workflows, including agent tool discovery, tool invocation and multi-step agent workflows
• Test MCP protocol functionality, including tool list aggregation, tool call routing and streaming response handling
• Verify agent authorization mechanisms through unauthorized tool access attempts and policy enforcement validation
• Conduct agent performance testing, covering tool discovery latency, concurrent agent sessions and agent-to-agent latency
• Build Python test automation suites using pytest with async support, mock MCP servers and agent workflow simulation
• Validate agentic observability, including trace completeness, agent step logging and audit trail verification

Requirements

• 3+ years of QA engineering experience for AI/ML or agent systems
• Hands-on experience testing AI agent systems in a production agentic AI project, such as MCP protocol testing, agent authorization/policy-enforcement testing or multi-step agent workflow test automation
• Experience testing LLM agent workflows, including tool calling and multi-step reasoning
• Expertise in security testing for authorization and authentication
• Skills in performance benchmarking for cloud services
• English proficiency at B2 level or higher

Nice to have

• Experience in MCP protocol testing
• Familiarity with agent framework testing (LangChain, LangGraph, Crew)
• Experience testing AWS Bedrock Agents
• Background in chaos engineering for agentic systems
• Skills in audit log validation (CloudTrail, OpenTelemetry traces)

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.