BMS Commissioning Engineer in London

Better places, thriving communities.

Location: London & South (South of Milton Keynes)

Hours: 40 per week (8-5, M-F)

Contract: Full-time | Permanent

The Opportunity

Join a leading national team delivering cutting-edge Building Management System (BMS) solutions across the UK. In this role, you'll take ownership of full project lifecycles — from initial design and mobilisation through to commissioning and client handover. Working with industry-leading platforms such as Trend, Tridium (Niagara), and Distech, you'll play a key role in delivering high-quality, tailored solutions to a diverse client base. This is a hands-on position suited to a proactive engineer who thrives in a fast-paced environment, enjoys solving complex technical challenges, and takes pride in delivering exceptional results. You'll be part of a dynamic National BMS Projects & Operations Team, collaborating with over 50 engineers, managers, and support staff nationwide.

The Role

As a BMS Project & Commissioning Engineer, you will be responsible for the successful delivery of BMS projects from start to finish, ensuring systems are designed, integrated, and commissioned to the highest standards.

Key Responsibilities

• Deliver end-to-end BMS projects, from site mobilisation through to final commissioning and handover
• Design and configure effective control strategies tailored to client requirements
• Conduct site surveys and assess system requirements
• Commission BMS systems, including graphics and head-end interfaces
• Integrate systems using open protocols such as Modbus, M-Bus, and BACnet
• Support and mentor junior engineers, promoting best practices
• Build and maintain strong relationships with clients, suppliers, and internal teams
• Ensure projects are delivered on time, within scope, and to client expectations

What We're Looking For

• Niagara Framework Certification – Ideally Certified or Advanced, with strong experience in Wire Sheets and control strategy development
• Protocol Integration Expertise – Proven ability to integrate systems using Modbus, M-Bus, BACnet, and other open protocols
• Strong IT & Networking Knowledge – Solid understanding of IP configuration and network infrastructure
• Design & Commissioning Experience – Skilled in developing control strategies, schematics, and commissioning complete BMS solutions
• Leadership & Communication Skills – Comfortable mentoring junior engineers and engaging with clients and stakeholders

Why Join Us?

• Be part of a well-established national team with a strong project pipeline
• Work on innovative, high-profile BMS projects
• Opportunity to mentor and develop others while advancing your own career
• Collaborative and supportive working environment

We are an accredited Real Living Wage Employer. This means every role at Mitie is paid at or above the independently calculated Real Living Wage, reflecting our commitment to fair pay and responsible employment. Our market-leading offering provides you with benefits that suit your lifestyle.

We have a virtual GP on hand for you and members of your household. So you can get expert advice by video or phone without having to leave your home. We offer financial wellbeing assistance through our Salary Finance scheme. For example, you could access 50% of your earned pay before payday for a small fee. Salary Finance also offers competitive loans.

When you join us, we’ll give you a link to our flexible lifestyle benefits platform, Choices. You might choose to purchase up to five extra days’ holiday each year. You might buy critical illness insurance, seek dental treatment or buy technology products at an affordable cost. There are many choices! We give you access to high street discounts from thousands of well-known retailers, gyms and more through our MiDeals platform. And we have a cycle-to-work scheme. Life cover of up to four times your salary is available. We also offer enhanced pension contributions, a save-as-you-earn scheme, and a Mitie Matching Share Plan (you could even be awarded free shares in Mitie).

We award our employees with Mitie Stars as recognition for their hard work. There are cash prizes up for grabs each month and at the end of the year there’s a chance to scoop a top prize of £10,000! Our success is a direct result of the experience and quality of our people. Progressing your career is therefore a top priority for us. We offer a diverse variety of training and development avenues via a wide selection of learning resources to suit you.

Since 1987, Mitie’s 80,000 employees have been maintaining companies globally. We are the UK’s leading facilities management and professional services company, and our clients range from household names in banking, critical government sites as well as hospitals and schools.

Join our Mitie Team. Together our diversity makes us stronger.