Senior Security & QA Engineer

Job Description

We are seeking a Senior Security & QA Engineer responsible for validating the security, compliance, and reliability of the MCP Server Registry, ensuring proper authentication, credential protection, governance enforcement, and end-to-end registry quality.

This position offers hybrid setup with the flexibility to work from any location in Lithuania, whether it's your home or our dynamic offices in Vilnius and Kaunas.

• Validate authentication enforcement and identify credential exposure risks across the registry
• Design and execute functional tests covering CRUD operations and validation rules
• Build and maintain automated test suites using Python and pytest
• Enforce lifecycle constraint testing, such as preventing deletion of active MCPs or setting in-use MCPs as inactive
• Audit AWS CloudTrail logs to confirm compliance and traceability of registry actions
• Assess registry and API endpoints for security vulnerabilities and compliance gaps
• Collaborate with development teams to ensure governance policies are properly enforced throughout the registry lifecycle

Requirements

• 3+ years of experience in security testing or QA engineering
• Experience in registry or API security testing
• Experience in AWS authentication flow testing
• Proficiency in Python test automation with pytest
• Knowledge of lifecycle constraint testing and functional test design for CRUD and validation rules
• Familiarity with AWS CloudTrail audit log validation
• English proficiency at B2 level or higher

Nice to have

• Familiarity with MCP gateway enforcement testing
• Knowledge of Vault secret exposure testing
• Understanding of governance lifecycle gate validation

Company offers

• Engineering Heritage: Best-in-class experts sharing a culture of engineering excellence and tackling complex engineering challenges for over 30 years
• Advanced Tech Stack: Innovative projects where you can apply or enhance your expertise in Cloud, Data, AI, and other emerging technologies
• World-Class Clients: Work closely with 340+ of the Forbes Global 2000 on creating disruptive solutions that make a global impact
• Professional Growth: Exceptional support for career development with comprehensive resources for upskilling or reskilling in pioneering practices
• GenAI Community: Strong AI competencies with 600+ experts across 55+ locations driving GenAI-enabled transformation journeys
• Entrepreneurial Culture: If you're passionate and dedicated to improving business transformation, we provide the support you need to bring your ideas to life
• Hybrid Setup: The flexibility to work from any location in Lithuania, whether it's your home or our dynamic offices in Vilnius and Kaunas
• Other Benefits: Additional vacation and trust days, private health insurance, Employee Stock Purchase Plan and more