Senior Security & Test Engineer (AI Agent Platform)

Quick Facts

Senior Security & Test Engineer (AI Agent Platform)

Description

Own security, functional, and performance test suites for the A2A gateway that powers a cloud-native enterprise agent development platform. Validate Cedar policy enforcement correctness across LOG_ONLY and ENFORCE modes, perform trust model gap analysis, and design functional and security tests for agentic AI systems.

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
• Proficiency in Python for security test automation
• Skills in functional and security test design
• Experience in performance testing using k6 and Locust, plus performance benchmarking for cloud APIs
• Expertise in Cedar policy testing (permit/deny, forbid-overrides-permit logic, LOG_ONLY vs ENFORCE)
• Background in agentic AI/LLM threat modeling including OWASP Top 10 for LLMs (excessive agency; tool/parameter exfiltration)
• Expertise in API security testing
• Security test design background 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
• Benefits package: health insurance, multisport, shopping vouchers
• Referral bonuses up to $2,000
• English classes
• Career development programs; mentoring, soft skills and well-being programs
• Certification support (Anthropic, Gemini, GCP, Azure, AWS)
• Hybrid-by-design mode; remote work opportunity within Poland
• Chance to work abroad for up to 60 days annually
• Business-driven relocation opportunities
• Corporate, social and well-being events
• Offices with entertainment/relaxation zones, table tennis and football, plus free snacks and coffee