Senior Security & Test Engineer - A2A

• 5+ years of experience in security engineering or quality assurance
• Knowledge of the A2A trust model including OAuth 2.0 signed Agent Cards and JWT validation with token scope enforcement for agent channels
• Proficiency in Python for security test automation
• Skills in functional and security test design
• Experience in performance testing using k6 and Locust along with performance benchmarking for cloud APIs
• Expertise in Cedar policy testing including permit/deny correctness forbid-overrides-permit logic and LOG_ONLY vs ENFORCE mode
• Background in agentic AI/LLM threat modeling covering OWASP Top 10 for LLMs excessive agency and tool parameter exfiltration
• Expertise in API security testing
• Background in security test design for AI/agent systems beyond REST APIs
• Experience in enforcement mechanism design or implementation

Nice to have:

• Familiarity with multi-agent communication security patterns
• Background in trust model gap analysis for non-AgentCore A2A agents

• 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
• Design and execute functional and security test plans for agentic AI systems
• Validate authentication and authorization flows across agent communication channels
• Identify and mitigate security risks specific to agentic AI and LLM-based systems
• Collaborate with engineering teams to strengthen the platform's overall security posture
• Report and track defects, vulnerabilities and performance bottlenecks uncovered during testing

EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and startups. Benefits listed are available to employees only. Terms of B2B cooperation agreements are agreed individually. We will reach out to selected candidates exclusively.