AI Offensive Testing Specialist

In this role, you will lead AI-assisted security testing within Euroclear’s CISO Offensive Security Tribe, shaping SAST, DAST, and red-team activities supported by LLMs. You will prepare inputs, run tests, validate findings and deliver reproducible, evidence-rich results. You’ll collaborate with cross-functional teams to improve testing methods and establish secure patterns at scale. This is a hands-on, impact-driven opportunity to advance AI-enabled security testing within a global financial infrastructure.

• competitive salary and comprehensive benefits
• hybrid working model (office 8 days/month + remote)
• international environment
• learning and development opportunities
• knowledge sharing culture
• inclusive workplace

• Prepare approved test scope, context, data and prerequisites for LLM-supported assessments.
• Execute SAST, DAST, penetration-testing and red-team workflows within approved scope and safety controls.
• Handle sensitive artefacts in accordance with security requirements and escalate issues as needed.
• Configure models, prompts and tools for reconnaissance, analysis and evidence capture; ensure repeatability and quality.
• Validate findings for accuracy; distinguish true vulnerabilities from false positives and obtain required approvals.
• Deliver LLM-supported scans on time with reproducible, technically credible results; collaborate with internal and external teams.
• Document lessons learned and reusable patterns; contribute to knowledge sharing and service improvements.
• Identify recurring findings to inform secure patterns, automated tests, and CI/CD quality gates.
• Follow runbooks and procedures; support testing, deployment validation and operational readiness.

• At least 3 years in application security, offensive security, or related fields.
• Hands-on SAST, DAST, web/API security testing, or red-team techniques.
• Practical experience using LLMs or AI agents for coding, security analysis or automation.
• Ability to assess code reachability, exploitability and remediation options.
• Experience with secure cloud or containerised environments and handling sensitive data.
• Coding or scripting ability and disciplined use of version control, testing and documentation.

• hands-on team contributor
• ethical, safety-conscious execution
• clear documentation and collaboration
• SAST
• DAST
• penetration testing