Senior HVAC / Mechanical Engineer

Senior HVAC / Mechanical Engineer
Opportunity reference: 7008

Industry and Utility buildings
Leiden omgeving
Detacheren
€ 4800-5500

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Contact Details

Organisation

MUST LIVE IN EUROPE – NO HSM OVER 30 YEARS due to scales

Our client is a leading project management and engineering consultancy with over 40 years of global experience in the industrial sector. Their reputation is built on forming successful partnerships with clients, delivering innovative designs and cost-effective solutions with sound judgment, strong management, and technical excellence. They offer full-service engineering, including project and program management, procurement, design, construction management, safety management, commissioning, qualification, and start-up for numerous projects across various market sectors. Their key markets include pharmaceuticals and biotechnology, medical technology, oil and gas, advanced technology, science and education, food and beverages, and energy.

What are you going to do?

 Pharmaceutical & Life Sciences | Leiden

MUST LIVE IN EUROPE – NO HSM OVER 30 YEARS due to scales

The role
Our client is looking for an experienced Senior HVAC / Mechanical Engineer to support multidisciplinary engineering projects within the pharmaceutical and life sciences industry.

You will work on both new installations and modifications to existing facilities, including HVAC systems, cleanrooms and mechanical utilities. You will take ownership of your engineering activities, working closely with the on-site engineering team, clients, contractors and other disciplines.

Key responsibilities

  • Develop HVAC and mechanical designs from concept and basic design through detailed engineering.
  • Prepare and review calculations, equipment specifications, datasheets, P&IDs, layouts and technical documentation.
  • Design and coordinate HVAC systems, cleanrooms and mechanical utilities, including chilled water, heating water, steam and condensate.
  • Coordinate designs with other disciplines using 3D/BIM models.
  • Conduct site surveys and provide technical support during construction, commissioning and handover.

Qualifications

  • Degree or equivalent qualification in Mechanical Engineering, HVAC or a related field.
  • Minimum 8 years of relevant HVAC / Mechanical Engineering experience.
  • Experience in pharmaceutical, life sciences or other regulated environments, preferably involving cleanrooms.
  • Experience with both new installations and modifications to existing operational facilities.
  • Strong technical knowledge of HVAC systems and associated mechanical utilities
  • Experience with multidisciplinary engineering and BIM/3D coordination.
  • Good command of English.
  • Valid VOL-VCA certificate or willingness to obtain one before starting site activities.

MUST LIVE IN EUROPE – NO HSM OVER 30 YEARS due to scales


Working arrangements

  • Location: Primarily the Leiden office, with regular client-site visits as required.
  • Office presence: Minimum 3 days per week in Leiden.

Offer

For over 20 years, Selectum has been bringing together clients and professionals for both temporary and permanent employment contracts. Depending on the client’s needs and the nature of the work, we also facilitate assignments for independent contractors and consultants. Terms of employment and compensation are always based on fair and balanced negotiations with both the client and the candidate.

In most cases, you will be employed by Selectum for the duration of a project or prior to joining our client directly. For employment with Selectum, the ABU Collective Labour Agreement (CAO) and the application of the hirer’s remuneration (based on the client’s employment conditions) form the basis of the package we offer. This package is always market competitive.

When a specific assignment can be carried out by a self-employed professional (ZZP-er), we agree on a rate for the independent execution of the assignment at our client’s site. In such cases, the client, the assignment, and the self-employed professional must all meet certain conditions.

In some cases, our client is looking to expand their own organization. In those situations, the employment contract is concluded directly with the client, and the final employment conditions are agreed upon directly with them.

Questions about the vacancy/assignment?

Do you have questions about the role, the work, or the work environment?
Our consultant is here to help and can provide you with all the details.
Whether it’s about the project itself, the team culture, growth opportunities, or practical arrangements—feel free to reach out directly.

Why Selectum

Great matches aren’t made in spreadsheets—they’re made through real conversations.
That’s why Selectum takes a different approach. We speak personally with both clients and candidates, taking the time to understand the people, the context, and the requirements. We know who fits where—and why.

Our strength lies in relationships and technical insight. In sectors where safety and quality are critical, every decision matters. That’s why we choose carefully—ensuring the right person is in the right place. What are you looking for?