Thales Belgium SA is a company which employs more than 470 people, consists of 2 sites located in Tubize (near Brussels) and Herstal/Soumagne (near Liège).

The Tubize site (GBU SIX**), which employs more than 300 people, is one of the Group's competence centers specializing in the design, development and supply of critical information systems for all types of platforms used by customers in the Defense, Security (including Cyber Security), Aeronautics and Transportation sectors.

Thales Belgium is recognized by domestic and international partners for expertise on products such as Radio Frequency (RF) Products, C4ISR, Crypto Global Solution, MACS (Aeronautical Intercom) and many others.

We say HI* – welcome to the Thales team! *Human Intelligence

Say HI* – to your career as
System Architect Team Leader (m/w/d)

(Ref. No. Job Requisition R0328811)
Location: Tubize #LI-HYBRID

Your Mission

• Lead multidisciplinary System Architecture activities across Solution, Requirements & Verification, Interface Definition & ConOps functions.

• Provide technical leadership, mentorship, and direction to SE teams supporting complex aerospace and defense programs.

• Lead major technical reviews including SRR, SFR, PDR, and CDR, ensuring deliverables meet program and customer requirements.

• Manage system architecture, interface control, requirements development, verification & validation, and technical trade studies for custom hardware/software systems.

• Oversee risk and opportunity management, maintaining mitigation plans and status reporting to program leadership.

• Support proposal development, Basis of Estimate (BOE) activities, cost estimating, and schedule forecasting.

• Apply Model-Based Systems Engineering (MBSE) methodologies using CAPELLA or similar tools.

• Drive continuous improvement initiatives, process optimization, and lessons learned activities.

What We Are Looking For

• Bachelor’s degree in Engineering, Computer Science, Systems Engineering, or related STEM field with 10+ years of relevant aerospace/defense experience; or Master’s degree with 8+ years of experience.

• Experience across the systems engineering lifecycle, including requirements management, system architecture, interface control, verification & validation, and technical review leadership.

• Experience leading engineering teams on complex defense or aerospace programs involving custom hardware and/or software systems.

• Proficiency with Polarion and MBSE tools such as CAPELLA.

• Experience with EVM, technical risk management, and trade study analysis.

What You Can Expect

• Future opportunities will allow you to discover other domains or sites. You will be able to evolve and grow your competences in different areas.

• Room and attention to personal development.

• Build your talents in another domain of Thales Group, discovering new products, new customers, new country or go to a more complex Solution.

• Choose between a technical expertise or a leadership path.

• Build an international career within a leading Engineering Group.

Say HI* – Your Way to Us

For our 83,000 employees in 68 countries, we open up forward-looking perspectives, enable individual career paths, and provide creative freedom. We achieve this through courage, diversity, and a strong commitment to making the challenges of our time safer and more inclusive. With our sustainable and values-driven leadership culture, we actively promote diversity.

When the signs point to change, our international teams are ready to meet today’s complexity with tomorrow’s industry-leading technologies. Are you in?

Camilla Christovam
Talent Acquisition Partner #LI-CC1