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We’re Hiring: AI Security Tester
SC Cleared / Eligible Required
Are you passionate about breaking AI systemsbefore adversaries do? We’re looking for an AI Security Testerwith deep offensive security expertise to help safeguard next-generation AI solutions.
In this role, you’ll simulate real-world attacks to uncover vulnerabilities in AI/ML systems. From stress-testing model guardrails to identifying data privacy risks, you’ll play a critical role in ensuring secure and trustworthy AI deployments.
Working Model - Hybrid Role, when needed will have to travel to Mastek offices or customer location
- Conduct adversarial testing to challenge AI model safety and guardrails
- Perform penetration testing and fuzzing of AI systems
- Identify risks such as data poisoning, model evasion, hallucinations, and bias
- Validate data privacy controls, including PII handling and encryption
- Simulate attack scenarios and exploit attempts
- Document vulnerabilities, unexpected behaviours, and evidence in lower environments
- Analyse threat vectors and recommend mitigation strategies
- 5+ years in offensive cybersecurity
- Minimum 2 years focused on AI/ML security
- Strong programming skills in Python / Java
- Hands-on experience with ML frameworks (e.g., PyTorch, TensorFlow)
- Familiarity with AI tooling (e.g., LangChain, LlamaIndex, red-teaming toolkits)
- Proven ability to assess and secure AI systems end-to-end
Nice to Have
- Master’s degree in Computer Science, Cybersecurity, AI/ML, or related field
- Certifications such as CISSP or AI security/safety credentials
AI Security Tester employer: Mastek Limited
As a Consultant at our Leeds location, you will thrive in a dynamic hybrid work environment that fosters collaboration and innovation. We prioritise employee growth through mentorship opportunities and a commitment to quality processes, ensuring that you can develop your skills while contributing to impactful projects. Join us to be part of a supportive team that values communication and embraces Agile methodologies, making it an excellent place for meaningful and rewarding employment.