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Senior Security & Test Engineer (A2A)
EPAM Systems
Remote · Lithuania, LatviaSalary not disclosedfull-timeEPAM Systems Careers (remote abroad)
We are seeking a Senior Security & Test Engineer (A2A) to own the security, functional and performance test suites for our A2A gateway, focusing on Cedar policy enforcement and agentic AI threat modeling.
Responsibilities
- Own security, functional and performance test suites for the A2A gateway
- Test Cedar policy enforcement correctness across LOG_ONLY and ENFORCE modes
- Conduct trust model gap analysis for non-AgentCore A2A agents
- Validate A2A trust model components including OAuth 2.0, signed Agent Cards and JWT validation
- Enforce token scope requirements across agent communication channels
- Design functional and security test cases for the A2A platform
- Execute performance testing using k6 and Locust
- Verify Cedar policy logic including permit/deny correctness and forbid-overrides-permit rules
- Apply threat modeling practices for agentic AI and LLM systems based on OWASP Top 10 for LLMs
- Identify risks related to excessive agency and tool parameter exfiltration
Languages
- Work format
- Remote
- Seniority
- Senior
- Posted
- 29 Sept 2026
- Last verified
- In the last 5 days
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