20.03.2026
Cleanroom Service and Commissioning Technician (m/f/d)
Karl-Heinz Lotz, B.S. in Engineering
Kretz + Wahl Gebäudetechnik GmbH & Co. KG

Helping to shape a more sustainable future

Seit über 45 Jahren entwickeln, bauen und installieren wir wegweisende Technologien in der Lüftungs-, Klima- und Reinraumtechnik. Bei Kretz + Wahl arbeiten Sie in einer starken Zukunftsbranche und schaffen nachhaltige Lösungen für Mensch und Umwelt. Werden Sie Teil eines Teams, das mit Innovationskraft und Schnelligkeit Energiewende aktiv mitgestaltet.

Als etabliertes, mittelständisches Unternehmen bieten wir Ihnen langfristige Perspektiven und sinnstiftende Projekte, die einen positiven Beitrag für die Gesellschaft leisten. Ob auf der Baustelle, im Büro oder im Kundendienst: Bei uns profitieren Sie von einer unterstützenden Arbeitsatmosphäre mit flachen Hierarchien und kurzen Entscheidungswegen. Hier haben Sie die Chance, Ihre Ideen einzubringen und sich gemeinsam mit uns für eine nachhaltigere Zukunft einzusetzen. 

 

Your responsibilities at our company

  • Commissioning of building services systems in the field of ventilation and air conditioning—in compliance with all applicable laws and regulations (ventilation system measurements in accordance with DIN EN 12599), with appropriate documentation
  • Cleaning and filter change of the air handling units before commissioning
  • Carrying out air volume, pressure and sound measurements as well as power consumption measurements
  • Commissioning of cleanroom ventilation systems, including all necessary measurements and tests (such as particle measurements, etc.), with the corresponding documentation in accordance with the "
    " standard
  • Participation in the IQ/OQ of GMP systems
  • Parameterizing volume flow controllers and frequency converters, as well as setting pressure controls and volume flow controls in ventilation systems
  • Completeness and functional checks of the installed systems, as well as coordination with the I&C technology with regard to commissioning capability
  • Technical instruction of the end customer on the systems on site
  • Support / Assistance with TÜV inspections / site inspections
  • Participation in MSR awards to subcontractors
  • Training and Onboarding of Junior IBN Technicians
  • Participation in the evaluation of calculations in the field of MSR and IBN
  • Contributing expertise during the launch of new projects related to measurement and control technology and the use of ventilation components such as V-regulators, pressure regulators, and measurement points, etc.
  • Possible support / assistance of project and site managers in the event of warranty defects.
  • Carrying out initial hygiene inspections
  • Evaluation of HVAC systems with regard to hygiene DIN 6022 and general condition.
  • Recording of air balances in buildings, such as laboratories etc., with corresponding documentation and creation of an up-to-date ventilation scheme.
  • Management of all necessary measuring devices / organization of annual recalibration  

 

Requirements

  • Completed training as an electrician / electronics technician or comparable qualification
  • Practical experience in the commissioning of HVAC systems and I&C in the field of cleanroom technology
  • User knowledge in MS-Office
  • Independent, structured way of working
  • Communication skills, ability to work in a team and sense of responsibility
  • Reliability, flexibility and an open, authentic and customer-oriented demeanor
  • Commitment, initiative and organizational talent  

Here are the benefits you can expect

  • Flexible work schedules: Flexible hours and the option to work from home give you the freedom to achieve an optimal work-life balance.
  • Salary & Benefits: We offer a company pension plan, a free gym membership, and many other corporate benefits.
  • Professional and personal development: Through specialized training programs, we help you develop the relevant technical and interpersonal skills for your field or your individual career path—all the way up to a leadership role.
  • Mobility that suits you: Take advantage of our attractive mobility options, such as JobRad or company cars, for more freedom on four wheels.
  • A strong sense of community: Joint company events, flat hierarchies, and a positive culture of learning from mistakes define our supportive work environment.
  • Sustainability with a sense of responsibility: With us, you’ll work on meaningful client projects that make a positive contribution to the environment and society.

Sie können sich ganz unkompliziert per E-Mail an bewerbung@kretz-wahl.de oder über unser Online-Formular auf unserer Website bewerben. Wir freuen uns über Ihren Lebenslauf, Zeugnisse und ein Anschreiben – gern mit Gehaltsvorstellung und möglichem Eintrittsdatum. 

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Karl-Heinz Lotz, B.S. in Engineering
Kretz + Wahl Gebäudetechnik GmbH & Co. KG