What Does a Commissioning Engineer Actually Do?
23 Sept, 2026
Behind every data centre is a huge network of people responsible for designing, building, commissioning and operating the facility.
As demand for digital infrastructure grows, data centre development is creating opportunities across engineering, construction and project delivery.
But what do these jobs actually involve?
Here are some of the specialist roles helping turn data centre plans into operational facilities.
Electrical Engineers
Electricity is fundamental to every data centre.
Electrical Engineers design and develop the systems responsible for safely delivering power throughout a facility. Their work can cover everything from incoming utility connections to switchgear, transformers, backup generation and Uninterruptible Power Supply systems.
Reliability is particularly important because even a short interruption can have significant consequences for data centre operations.
Experience in power, utilities or other mission-critical environments can therefore be highly relevant.
Mechanical Engineers
Thousands of servers operating continuously generate a substantial amount of heat.
Mechanical Engineers help design the systems responsible for maintaining suitable operating conditions inside a data centre.
Depending on the facility, this can include HVAC, chillers, ventilation and increasingly advanced cooling technologies such as liquid cooling.
As computing density increases, cooling expertise is becoming an increasingly important part of data centre engineering.
MEP Engineers
Mechanical, Electrical and Plumbing Engineers help coordinate some of the most important technical systems within a data centre.
The role requires an understanding of how different building services interact rather than considering each system independently.
MEP professionals can work across design, installation, coordination and delivery, helping ensure complex technical infrastructure works together effectively.
Project Managers
Data centre developments involve multiple contractors, suppliers, engineering disciplines and stakeholders.
Project Managers are responsible for bringing these different elements together.
They can oversee budgets, programmes, resources, contractors and project milestones while ensuring work progresses according to the wider delivery plan.
Experience managing large-scale construction, infrastructure or engineering projects can provide highly transferable skills.
Construction Managers
Once construction begins, strong site leadership becomes essential.
Construction Managers oversee day-to-day delivery, coordinating contractors, monitoring progress and helping ensure work is completed safely and to specification.
Data centre construction can involve particularly complex mechanical and electrical packages, making experience on technically demanding projects valuable.
Commissioning Engineers
A data centre cannot simply be built and switched on.
Before becoming operational, its systems must be thoroughly tested.
Commissioning Engineers verify that electrical, mechanical and control systems perform as intended, both individually and together.
This can involve testing backup power, cooling systems, controls and other critical infrastructure under different operating scenarios.
For mission-critical facilities, commissioning is one of the most important stages of project delivery.
BIM and Digital Engineering Specialists
Data centres contain an enormous amount of infrastructure within relatively concentrated spaces.
Building Information Modelling specialists help project teams coordinate this complexity digitally before and during construction.
Detailed models allow teams to understand how structural, mechanical and electrical systems interact and identify potential clashes before they become expensive problems on site.
As projects become more digitally integrated, BIM and digital engineering skills are increasingly valuable.
Health and Safety Professionals
Large data centre construction projects can involve substantial workforces, heavy equipment and complex electrical and mechanical installation.
Health and Safety professionals help establish procedures, monitor compliance and support safe working environments throughout delivery.
Their role can span risk assessments, site inspections, contractor management and wider safety strategy.
Planning and Project Controls Professionals
Keeping a major data centre project on schedule requires detailed coordination.
Planners and Project Controls professionals track programmes, costs, resources and progress, giving project teams greater visibility over delivery.
They can identify potential delays or cost pressures early, allowing teams to respond before they significantly affect the project.
Operations and Maintenance Professionals
The workforce requirement does not end when construction finishes.
Operational data centres require skilled professionals to maintain electrical, mechanical and cooling infrastructure throughout the facility’s lifecycle.
Facilities Engineers, Maintenance Engineers, Technicians and Operations Managers all help keep critical systems running reliably.
For professionals interested in long-term careers within the sector, operations can offer another route into the data centre industry.
Could Your Skills Transfer into Data Centres?
Not everyone working in data centres started their career in the sector.
Professionals from power generation, utilities, construction, infrastructure, manufacturing and other technically demanding industries can bring highly relevant experience.
Electrical systems, cooling, commissioning, construction management and project controls are not unique to data centres.
Understanding how existing skills transfer could open opportunities for engineers and technical professionals looking to move into a growing area of infrastructure.
Find Your Next Opportunity with Kintec
Kintec connects engineering and technical professionals with opportunities across data centres, power, infrastructure and other major projects worldwide.
Whether you specialise in electrical engineering, mechanical engineering, construction, commissioning, project management or project controls, our recruitment teams work with organisations looking for specialist expertise across the project lifecycle.
Explore the latest opportunities with Kintec and discover where your experience could take you next.
