Commissioning Engineer - Mission Critical Projects

About the role

Johnson Controls' Silent-Aire business delivers mission-critical infrastructure solutions for large technology and data centre operators. The Commissioning Engineer is responsible for the installation verification, testing, commissioning, troubleshooting and handover of electrical and associated mechanical systems on mission-critical projects, ensuring they are commissioned safely, efficiently and in line with project specifications, industry standards, client requirements and company procedures. The role supports project teams across an assigned customer base.

Key responsibilities

• Support project delivery from installation and commissioning through to client handover.
• Collaborate with engineering, design and QA/QC teams to understand operational requirements and identify improvements.
• Develop and run commissioning, qualification and SAT protocols.
• Prepare system impact assessments, qualification documentation and validation reports.
• Review project documentation for technical accuracy, compliance and GMP requirements.
• Ensure systems are safe and ready for start-up, testing and qualification.
• Perform installation verification, system start-up and functional testing.
• Monitor progress, coordinate daily activities and ensure milestones are met.
• Build relationships with client teams and site stakeholders on health and safety, quality, commissioning and handover.

Required profile

• Minimum 3-5 years of experience in engineering and project-related activities, ideally in manufacturing, construction or mission-critical environments.
• Willingness and ability to travel internationally and regularly to project sites in the UK and abroad, including active construction sites.
• Flexible hours to support commissioning and critical project milestones.
• Strong organisational skills, attention to detail and ability to manage multiple priorities and deadlines.

Required skills

• Electrical engineering qualification.
• Experience with HVAC systems and data centre projects is desirable.
• Controls or Building Management Systems (BMS) experience is an advantage.
• Advanced proficiency in Microsoft Office.