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# AI Offensive Testing Specialist

- **Company:** Base 3
- **Location:** Brussel, Belgium
- **Experience:** Experienced
- **Contract:** Temporary contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software System Penetration Testing, Microsoft Azure, Cloud Computing, Cloud Computing Security, Continuous Integration, Python (Programming Language), Open Web Application Security, Secure Coding, Software Engineering, Data Logging, Scripting, Large Language Models, Software Security, Mitre Att&ck, Agentic-AI, Software Version Control, Static Application Security Testing, Dynamic Application Security Testing
- **Published:** October 31, 2026
- **Apply:** https://www.careerboard.com/be/en/find-jobs-in-Belgium/-654855CA5EF3B406F3/

## About the Role

* At least 3 years in application security, penetration testing, offensive security, security engineering or software engineering within enterprise environments.
 * Hands-on knowledge of source-code analysis, SAST, DAST, web and API security testing, penetration testing or red-team techniques.
 * Practical experience using LLMs or AI agents for coding, security analysis, automation or structured technical evaluation.
 * Ability to assess code and asset reachability, exploitability, attack paths, control effectiveness and remediation options.
 * Experience working with secure cloud or containerised environments and handling sensitive source code, credentials and security-assessment data.
 * Coding or Scripting capability and disciplined use of version control, testing, logging and technical documentation.
 * Experience contributing to the operationalisation of an AI, automation or security capability is preferred.

Skills & Competencies

 * Application security, offensive security, SAST, DAST, penetration testing, red teaming and vulnerability validation.
 * LLM and agent usage, prompt configuration, APIs, Python or equivalent automation, testing methods and evidence capture.
 * Web, API, infrastructure, cloud and identity testing; Azure, containers, CI/CD, version control, logging and monitoring.
 * OWASP, CWE, CVE, MITRE ATT&CK or ATLAS, secure coding standards and recognised offensive-testing methodologies.
 * Professional English; French or another European language is an advantage.

## Description

Role: The role contributes to transforming the capability from R&D into an operational service by testing workflows, improving prompts and configurations, documenting procedures, supporting integrations and sharing practical feedback from assessment delivery.

As a member of the delivery team, the role performs AI-assisted SAST, DAST, penetration-testing.