Mechanical Engineer

Mechanical Engineer – Cooling Parts (Junior / Intermediate / Senior)

Lisbon, Portugal

Employment Type: Full-Time, In-office

CTS Group , a fast-growing international design and build company specialising in data centre development across Europe, the Middle East and Africa (EMEA).

With over 40 nationalities across its teams, CTS Group fosters a collaborative, high-performance culture where innovation and technical excellence drive every project.

The Role

We are looking for a Mechanical Engineer – Cooling Parts accross all levels (Junior / Intermediate / Senior) to own the design, coordination and delivery of cooling systems and mechanical packages for mission-critical facilities.

You will provide technical leadership across projects, support fast-track execution and mentor junior team members.

Key Responsibilities

• Own the end-to-end design of cooling system components and mechanical packages, from concept through IFC to as-built.
• Lead the selection, sizing and integration of complex cooling equipment, including chillers, CRAHs, CDUs, pumps and heat rejection systems.
• Ensure designs comply with applicable codes and standards and resolve complex compliance issues.
• Lead coordination with electrical, structural, architectural and specialist package teams across multiple projects.
• Drive fast-track delivery through timely design updates, technical clarifications and risk mitigation.
• Provide senior technical input on constructability, commissioning and handover.
• Own responses to complex RFIs and support site teams during construction.
• Finalise and release mechanical design packages within your scope.
• Mentor and guide junior and intermediate engineers.

What You'll Bring

• Bachelor's or Master's degree in Mechanical, Electrical or Industrial Engineering.
• 3-10 years of experience in mission-critical or industrial environments.
• Deep expertise in HVAC design for mission-critical cooling.
• Strong expertise in critical cooling systems, including:
• CRAH / CRAC
• Chillers
• Liquid cooling
• Heat exchangers
• Pumps
• Advanced proficiency in AutoCAD and Revit.
• Extensive experience with DCIM tools and complex interface coordination.
• Advanced knowledge of redundancy concepts such as N+1 and 2N, resilience and uptime requirements.
• Proven experience mentoring or leading junior engineers.
• Eligibility to work in Portugal.

You Are

• Exceptionally detail-oriented with strong interface management skills.
• A strong leader and collaborator across global, cross-functional teams.
• An excellent communicator with strong stakeholder management experience.
• Comfortable leading projects in fast-paced, high-complexity environments.

What We Offer

• A career-building leadership opportunity with one of Europe's fastest-growing data centre companies.
• Direct collaboration with global colleagues and multidisciplinary teams.
• Competitive compensation and health insurance.
• A dynamic, innovation-focused working environment in Lisbon or Porto.