Thales

AI Security Engineer

Thales
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24 hours ago
Remote, Belgium or Zaventem, BelgiumEntry Level / Mid Level / Senior

Responsibilities

  • Deliver software engineering and secure AI integration projects for clients.
  • Gather requirements, design architectures, prototype solutions, and develop LLM integrations, RAG systems, agents, and AI-driven automations.
  • Support production rollout through industrialization, secure deployment pipelines, and knowledge transfer.
  • Contribute to pre-sales through demos, proofs of concept, technical estimates, and RFP responses.
  • Develop and maintain internal AI-enabled tools, document-processing pipelines, security automations, and RAG- and agent-based tools.
  • Apply secure coding, application security, threat modeling, code review, guardrails, filtering, monitoring, and agent tool-access controls.
  • Industrialize AI proofs of concept, document and test solutions, and develop reusable libraries, scripts, and components.
  • Collaborate with the AI Security Advisor, Cyber Defense, delivery, R&D, DevSecOps, and MLOps teams.
  • Communicate with technical and business stakeholders in French and English.

Requirements

  • Software engineering fundamentals, ideally with Python, and a focus on clean, tested, maintainable code.
  • First hands-on experience with LLMs, RAG, agent frameworks, and API-based integrations.
  • Awareness of common application vulnerabilities, OWASP Top 10, and secure coding principles.
  • Foundations in at least one of AWS, Azure, or GCP, plus DevOps practices including deployment pipelines, containerization, and infrastructure as code.
  • Passion for AI and cybersecurity demonstrated through personal projects, open-source contributions, experimentation, blogging, or active learning.
  • Strong communication, consulting, client-facing, collaboration, autonomy, and fast-learning abilities.
  • Native French or Dutch; English is a plus.
  • No certification is required; GIAC AI security, cybersecurity, and cloud certifications are valued.
  • The role is open to junior, mid-career, and senior candidates, with scope and autonomy adjusted to experience.

Benefits

  • The position is open to all experience levels, from junior to senior.
  • A skills development plan may include GIAC AI security certifications.
  • The role provides opportunities to work on client engagements and internal AI initiatives with the AI Security Advisor, Cyber Defense, delivery, and R&D teams.
  • The position supports professional growth across AI, application security, MLOps, software engineering, and consulting.
  • Thales recognizes diverse talent and is committed to disability inclusion.
Thales

About Thales

10,000+ employees

Thales designs and sells defense, aerospace, space, and digital identity/cybersecurity systems to governments, armed forces, infrastructure operators, and enterprises. Its portfolio spans avionics, radars and sensors, satellites, air traffic management, secure communications, and cybersecurity and identity solutions (bolstered by the 2019 Gemalto acquisition). Headquartered in Meudon, France, Thales is publicly traded on Euronext Paris (HO) and reported €20.6 billion in sales in 2024.

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