Senior Security & Test Engineer (AI Agent Platform)

Quick Facts

• Role: Senior Security & Test Engineer for the A2A gateway
• Focus: security, functional, and performance testing for agentic AI systems

Description

Own security, functional, and performance test suites for the A2A gateway in an enterprise AI agent development platform. You will validate Cedar policy enforcement correctness, analyze trust model gaps, and test authentication/authorization across agent communication channels. You will design and execute functional and security test plans to identify risks and drive fixes.

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
• 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

Requirements

• 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 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

Benefits

• Stable pay
• Employee Stock Purchase Plan with a 15% discount
• Health insurance and multisport; shopping vouchers
• Referral bonuses up to $2,000
• Hybrid work model with remote opportunity within Poland; chance to work abroad up to 60 days annually
• Business-driven relocation opportunities
• Career development programs, mentoring, soft skills and well-being programs
• Certifications and English classes
• Corporate events and well-being activities; offices with amenities (snacks, coffee, entertainment zones)

Benefits listed above are available to employees only.