At a Glance
- Tasks: Commission smart building systems across data centres and commercial environments.
- Company: Join OKTO, a leader in intelligent building solutions with 33 years of experience.
- Benefits: Competitive salary, pension, private medical insurance, and paid volunteer time.
- Other info: Dynamic role with travel opportunities across the UK and Ireland.
- Why this job: Be hands-on with cutting-edge technology and make a real impact in smart buildings.
- Qualifications: Experience in building automation and strong understanding of control systems required.
The predicted salary is between 50000 - 50000 € per year.
Hands-on commissioning engineer to bring smart building systems to life across data centres, healthcare estates, and critical commercial environments. BMS, AV, IT, lighting, energy — the full integrated stack, from configuration through to client handover. This role suits an engineer with strong technical depth across BMS, controls, and IP networking, who wants hands-on work with cutting-edge building automation in a team that takes engineering standards seriously.
About OKTO
OKTO is a systems integration company with a 33-year heritage in critical building infrastructure. We deliver intelligent building solutions across data centres, healthcare, commercial estates, and critical environments. We are based in Lisburn, Northern Ireland, with a London operation and active project work across the UK and Republic of Ireland.
The role
You will take ownership of system commissioning across our project portfolio — configuring, testing, and optimising integrated building platforms so they perform to specification on day one and stay that way. You'll commission across BMS, AV, IT, lighting control, energy management, and integrated smart technologies; validate interoperability across protocols; troubleshoot at hardware, software, and network layers; and produce the commissioning evidence that lets projects close out cleanly.
Key responsibilities
- Install and commission smart building systems: BMS, AV, IT, lighting control, energy management, and integrated smart technologies
- Configure and optimise system parameters for energy efficiency, occupant comfort, and operational reliability
- Troubleshoot and resolve issues across hardware, software, and network layers
- Validate interoperability between devices, platforms, and integrations (BACnet, Modbus, KNX, MQTT)
- Review engineering drawings, point schedules, and control logic to confirm correct implementation
- Support on-site installation teams with technical guidance and commissioning requirements
- Conduct functional performance tests and produce detailed commissioning reports
- Deliver system demonstrations and training to clients and facilities teams
- Collaborate with project managers, consultants, and sub-contractors
- Maintain documentation and ensure compliance with industry standards and best practice
What we are looking for
- Proven experience in building automation and smart building systems
- Strong understanding of control and electrical systems
- Working knowledge of communication protocols: BACnet/IP, Modbus, KNX, DALI, MQTT
- Familiarity with IoT platforms, cloud dashboards, and analytics tools
- Able to interpret schematics, control panel layouts, and sequence-of-operations
- Strong analytical, troubleshooting, and problem-solving skills
- Confident communicator, able to work independently or as part of a team
- Full driving licence and willingness to travel to project sites
Desirable
- Experience with Siemens, Schneider, Tridium, or similar platforms
- Knowledge of cybersecurity considerations for connected building systems
- Experience on data centres, commercial buildings, or smart campuses
Location and travel
Based from either our Lisburn (Northern Ireland) headquarters or our London operation. Regular site travel across the UK and Republic of Ireland depending on project demands. Travel, accommodation, and subsistence covered.
Compensation
Permanent: £50,000 plus benefits — company pension, private medical insurance, cycle-to-work scheme, paid volunteer time Contract alternative: 12-month fixed term at £400 per day, IR35 status to be confirmed per engagement
How to apply
Send your CV and a short note on your commissioning experience — particularly platforms worked on and protocols used — to . Reports to the Operations Manager.
Smart Building Commissioning Engineer (BMS / Controls) London in Slough employer: OKTO Technologies
At OKTO, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration in the field of smart building systems. Our London operation provides engineers with the opportunity to work on cutting-edge projects across critical environments, while enjoying comprehensive benefits such as private medical insurance, a company pension, and a cycle-to-work scheme. We are committed to employee growth, providing hands-on experience and training in advanced technologies, ensuring our team members thrive in their careers.
StudySmarter Expert Advice🤫
We think this is how you could land Smart Building Commissioning Engineer (BMS / Controls) London in Slough
✨Tip Number 1
Network like a pro! Attend industry events, workshops, or meetups related to smart building systems. It's a great way to meet potential employers and get your name out there.
✨Tip Number 2
Show off your skills! Create a portfolio showcasing your past projects in BMS, AV, and energy management. This can really set you apart when chatting with hiring managers.
✨Tip Number 3
Don’t just apply; engage! When you find a role that excites you, reach out to the company directly through our website. A personal touch can make all the difference.
✨Tip Number 4
Prepare for hands-on interviews! Be ready to discuss your troubleshooting experiences and how you've optimised systems in the past. Real-world examples will impress your interviewers.
We think you need these skills to ace Smart Building Commissioning Engineer (BMS / Controls) London in Slough
Some tips for your application 🫡
Show Off Your Skills:Make sure to highlight your hands-on experience with BMS and smart building systems in your CV. We want to see your technical depth, so don’t hold back on the details about the platforms and protocols you've worked with!
Tailor Your Application:Take a moment to customise your CV and cover note for this role. Mention specific projects or experiences that relate directly to the job description. This shows us you’re genuinely interested and have done your homework!
Be Clear and Concise:When writing your application, keep it straightforward and to the point. We appreciate clarity, so avoid jargon unless it’s relevant to the role. Make it easy for us to see why you’re a great fit!
Apply Through Our Website:Don’t forget to submit your application through our website! It’s the best way for us to receive your CV and cover note, and we can’t wait to see what you bring to the table.
How to prepare for a job interview at OKTO Technologies
✨Know Your Tech Inside Out
Make sure you brush up on your knowledge of BMS, AV, IT, and the various communication protocols like BACnet and Modbus. Be ready to discuss specific projects where you've applied this knowledge, as it shows you're not just familiar with the terms but have real-world experience.
✨Showcase Your Troubleshooting Skills
Prepare examples of how you've tackled complex issues in past roles. Whether it's a hardware glitch or a software hiccup, being able to articulate your problem-solving process will impress the interviewers and demonstrate your hands-on capabilities.
✨Understand the Company’s Projects
Do some homework on OKTO and their recent projects. Knowing about their work in data centres and healthcare estates can help you tailor your answers and show that you're genuinely interested in contributing to their mission.
✨Communicate Clearly and Confidently
As a commissioning engineer, you'll need to explain technical concepts to clients and team members. Practice articulating your thoughts clearly and confidently, so you can convey your ideas effectively during the interview.
