Mechanical Commissioning Engineer

Location: Vienna, Austria (Base) with project assignments in Germany (Mainz/Berlin)

Job Type: Permanent, Full-Time

About the Role

Leap29 is recruiting on behalf of a leading international engineering contractor specialising in mission-critical and industrial projects across Europe.

We are seeking an experienced Mechanical Commissioning Engineer to join a growing Data Centre division, supporting the delivery of large-scale hyperscale projects across Germany.

Working as part of an experienced commissioning team, you will play a key role in the testing, commissioning and successful handover of complex HVAC and mechanical building services systems throughout the project lifecycle.

Key Responsibilities

• Commission, test and optimise HVAC and mechanical systems.
• Manage assigned commissioning work packages from planning through to completion.
• Coordinate commissioning activities with subcontractors, suppliers and client representatives.
• Produce commissioning documentation, test records and handover documentation.
• Support pressure testing, system validation and commissioning activities.
• Work closely with project management, construction teams and clients to ensure successful project delivery.
• Ensure all commissioning activities are completed in accordance with project specifications and quality standards.

Requirements

• Technical qualification in Mechanical Engineering, Building Services, HVAC or a related discipline.
• Previous experience within Mechanical or HVAC Commissioning.
• Previous Data Centre or Mission Critical project experience.
• Strong understanding of HVAC systems and mechanical building services.
• Experience working on large-scale construction projects.
• Excellent communication and organisational skills.
• Good English language skills.
• Willingness to travel internationally for project assignments.

What's on Offer

• Competitive salary.
• Attractive expatriate package with financial and practical support for international assignments.
• Regular home travel during overseas project assignments.
• Opportunity to work on major hyperscale data centre projects across Europe.
• Long-term career progression within a growing international engineering contractor.
• Ongoing technical training and professional development.
• International working environment with multicultural project teams.
• Structured onboarding programme.
• Employee referral bonus.
• Additional employee benefits including company partnership discounts and employee support programmes.

Apply

If you're an experienced Mechanical Commissioning Engineer looking to work on complex mission-critical projects across Europe, we'd be delighted to hear from you.