The Power Supply Testing and Commissioning (T&C) Lead Engineer supports the Power T&C Manager in preparing, coordinating, and executing Testing & Commissioning activities across all MMSP power supply systems. He ensures safe, compliant, and efficient testing performed mainly by in‑house teams, while supervising specialized subcontractors for 115kV equipment. The role guarantees system readiness, technical quality, and alignment with project commissioning milestones across all subsystem types, including the Bulk Supply Substation (BSS), Station Substations (SSS), and Traction Substations (TSS).
Systems and Sites Covered
Includes but not limited to:

Colas, a subsidiary of the Bouygues Group, is a major player in the construction and maintenance of transportation infrastructure and urban development.
Colas covers the entire value chain: from industrial production to service offerings, including construction work.
Thanks to its local presence in some fifty countries on five continents 🌍, Colas achieved a consolidated revenue of €15.9 billion in 2024, 59% of which is outside France.
With its 64,000 employees 👷♀️👷♂️, a network of 2,000 operating units comprising 3,500 production units, and nearly 45,000 projects per year, Colas is the trusted partner of its customers.
Colas maintains its pioneering, innovative and responsible spirit to connect people and foster the sustainable development of territories 🚀 ♻.
Colas shares the four founding values of the Bouygues Group, which form the basis of its corporate culture and the way it operates on a daily basis:
• Respect: treat others how you would like to be treated.
• Commitment: for us, commitment is about giving your heart and soul.
• Pioneering: bold innovation, not blind ambition.
• Sharing: at Bouygues, knowledge and experience are meant to be passed on.
At Colas, it’s our people who drive our company forward.
We strive to develop talent, and we give those who join the company the opportunity to reach their full potential throughout their careers.
Because, when you join Colas, we hope you’ll make a career here.