Mobile HVAC Maintenance Technician (a)

Publication date:24 September 2025
Workload:100%
Place of work:Genève

About the job

Mobile HVAC Maintenance Technician (a)

At ISS, we all call ourselves "Placemakers." Our goal is to provide our clients with the best possible environment and to ensure they feel comfortable at their workplace. Our 14,200 employees/placers have a high level of service knowledge to meet the various needs of our clients. We carry them out according to the highest quality standards.

Your tasks:

- Ensure the operation, preventive and corrective maintenance of HVAC installations (heating, ventilation, air conditioning, cooling) to guarantee comfort, safety, availability, and energy efficiency of buildings.
- Daily operation: rounds, readings, adjustments, and optimization of air handling units, boilers, heat pumps, chillers, cooling towers, monoblocks, hydraulic networks.
- Preventive & corrective maintenance: diagnostics, filter changes, belts, bearings, sensors; cleaning coils; lubrication; aerodynamic/hydraulic balancing; minor mechanical/electrical repairs.
- Troubleshooting / on-call: rapid intervention on BMS alarms, fault finding (electric/automation/fluid), safe restart.
- Energy measurement & optimization: monitoring consumption, setpoint adjustments, implementation of saving actions (VAV, water laws, schedules), improvement proposals (retrofit of inverters, regulation).
- Compliance & safety: application of safety rules (working at height, chemicals, legionella), keeping registers and maintenance plans.
- Subcontractors & audits: occasional management of specialists (balancing, refrigeration), technical acceptance, regulatory controls, resolution of reservations.
- Documentation: CMMS (stocks, reports), updating diagrams, checklists, prevention plans.
- Client/user relations: clear information, priority management, satisfaction follow-up.

Your profile:

- Federal VET diploma in building technology or equivalent.
- Very good knowledge of the French language.
- Several years of experience in a similar position.
- Driving license required.
- Reading of aerodynamic/hydraulic/electrical diagrams and P&ID.
- Methodical troubleshooting: measurements (ΔP, ΔT, currents), root cause analysis.
- Basics of automation/regulation (PID, sensors, actuators, bus).
- Good level of safety (lockout/tagout, chemicals, cooling towers).
- Service & energy orientation (you like it when kWh go down).
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Ready for us? We are ready for you.
Every day at ISS Switzerland, we work to ensure that offices, laboratories, airports, production sites, train stations, schools, and hospitals function and are pleasant to live in. Our 14,200 employees create living spaces throughout Switzerland where more than a million people feel good and can thrive every day. ISS stands for innovation, quality of service, and direct relationships with clients.

As an employer, we rely on fair employment conditions, equal pay for work of equal value, and secure jobs. For us, respect is more than a promise – it is reflected in our five programs and in more than 200 training and development opportunities. Because those who take on responsibilities must also offer prospects – and without us, many things would not work.