Design Manager (H/F)

📍 Job Overview

Job Title: Design Manager (H/F)

Company: Equans France

Location: Guyancourt, Ile-de-France, France

Job Type: Full-Time

Category: Operations Management / Project Management (Data Centers)

Date Posted: July 29, 2026

Experience Level: 10+ Years

Remote Status: Hybrid

🚀 Role Summary

• Spearhead the technical design and execution oversight for complex, large-scale industrial building projects, with a primary focus on Data Centers.

• Drive the development and coordination of all-trades technical execution studies (tous corps d'état - TCE) during the realization phase, ensuring adherence to stringent operational, safety, and environmental standards.

• Act as a pivotal technical liaison during the commercial phase, collaborating closely with sales teams to ensure the technical coherence and competitiveness of project bids.

• Manage and optimize project budgets and timelines, demonstrating strong financial acumen and strategic planning capabilities.

• Coordinate effectively with a diverse range of internal and external stakeholders, including clients, architectural and engineering firms, control bodies, and construction partners.

📝 Enhancement Note: This role is critical in the pre-construction and early execution phases of Data Center projects, bridging the gap between commercial strategy and technical implementation. The Design Manager's responsibilities span both bid preparation and project delivery, requiring a blend of technical expertise, project management acumen, and strong stakeholder engagement skills within the specialized Data Center construction sector.

📈 Primary Responsibilities

• Technical Execution Oversight: Lead and coordinate the development of detailed execution studies for major Data Center projects, ensuring all technical aspects are thoroughly addressed and integrated.

• Constraint Management: Proactively identify and manage technical, safety, environmental, contractual, and financial constraints throughout the project lifecycle, ensuring compliance and risk mitigation.

• Study Organization & Validation: Establish efficient study production workflows, define validation circuits, and oversee the coordination of technical reviews (visas) and interface management.

• Commercial Phase Support: Serve as the primary technical point of contact during the bid phase, contributing to the technical pricing, coordinating study inputs, and ensuring the optimization of project designs through innovative solutions.

• Stakeholder Coordination: Manage and collaborate with external engineering design offices (BET), internal technical specialists, pricing teams, BIM coordinators, and legal experts to deliver cohesive project documentation and proposals.

• Technical-Commercial Interface: Act as the key liaison between the Sales Manager and the Technical Team, facilitating clear communication and alignment on project requirements and solutions.

• Techno-Economic Strategy: Contribute to the technical and economic structuring of operations, including programming, selection of design offices, and overall techno-economic strategy development.

• Client Presentations: Participate in technical explanation meetings with clients, supporting the sales team with in-depth project insights and technical justifications.

• Project Transfer: Ensure a seamless and accurate transfer of project documentation and knowledge to the construction (TRAVAUX) team upon project signature.

📝 Enhancement Note: The emphasis on "tous corps d'états" (TCE) and specific