Lead Commissioning Engineer

Parker Jones Group Ltd; Greater London; On-site; GBP 50,000 - 70,000; Full time

Job summary

A leading engineering company in London is seeking a Lead Commissioning Engineer to oversee commissioning activities across data centre sites. Applicants should have at least 3 years of experience in HVAC or electrical systems, alongside relevant certifications. Key responsibilities include managing documentation, ensuring project compliance with industry standards, and collaborating closely with project teams. This role provides competitive salary and comprehensive benefits, including a pension scheme and development opportunities.

Benefits

Competitive Salary

25 Days Holiday (+ Bank Holidays & Holiday Purchase Scheme)

Pension Scheme

Life Assurance Scheme

Cycle to Work Scheme

Long Service Awards

Employee Assistance Programme & Mental Health Support

Learning & Development Opportunities

Qualifications

• HVAC practical experience or a degree in Mechanical Engineering.
• 3+ years of experience in commissioning HVAC/electrical systems.
• Proficient in testing, troubleshooting, and validating performance.

Responsibilities

• Lead commissioning activities across data centre sites.
• Oversee equipment delivery and installation.
• Manage commissioning documentation and schedules.

Skills

HVAC practical experience or a degree in Mechanical Engineering

3+ years commissioning HVAC/electrical systems

Proficient in system testing and performance validation

Knowledge of electrical safety standards

Comfortable with Office365 and document control platforms

Willingness to travel across EMEA

Education

Relevant mechanical/electrical certifications

F-Gas qualification

Tools

MODBUS

BMS systems

Job description

Lead Commissioning Engineer

London, NW10 | Site Based

What You’ll Be Doing

• Leading commissioning activities across data centre sites, ensuring timely and high-quality delivery.
• Overseeing equipment delivery, installation, and handover in line with project specifications.
• Executing commissioning scripts and validating HVAC and electrical system performance.
• Collaborating with our internal project teams, contractors, and clients to maintain safety, quality, and technical standards.
• Managing documentation including RAMS, HSE reports, test logs, and commissioning schedules.
• Identifying and communicating risks related to resources, timelines, and budgets.
• Supervising deep cleaning operations and ensuring client satisfaction.

Additional Responsibilities

• Commissioning critical infrastructure such as AHUs and cooling systems.
• Ensuring compliance with ASHRAE standards (L1-L5) and industry best practices.
• Conducting site audits and inspections to verify installation quality.
• Troubleshooting and resolving commissioning issues to keep projects on track.
• Participating in twice daily site meeting, providing detailed progress updates and other meetings as required.
• Building strong relationships with stakeholders including GC, CxA, CxM, and client reps.
• You will report directly to our Project Manager, liaising also with our onsite Project Engineer.

What You Bring

• Technical Expertise: HVAC practical experience or a degree in Mechanical Engineering, plus relevant mechanical/electrical certifications. F‑Gas qualification is a strong plus.
• Industry Experience: 3+ years commissioning HVAC/electrical systems in construction or critical infrastructure. Data centre experience and familiarity with ASHRAE L1‑L5 commissioning stages are highly desirable.
• Skills & Knowledge: Proficient in system testing, troubleshooting, and performance validation. Strong grasp of airflow principles, technical drawings, and commissioning documentation.
• Safety & Compliance: Knowledge of electrical safety standards including LOTO procedures. CSCS card required; SSSTS/SMSTS and other certifications are a bonus.
• Tech Savvy: Comfortable with Office365 and document control platforms. Experience with MODBUS and BMS systems is advantageous.
• Mobility & Adaptability: Willingness to travel across EMEA, work at height/in confined spaces, and perform physical tasks. A full driving license is essential.

What's in It for You?

• Competitive Salary
• 25 Days Holiday (+ Bank Holidays & Holiday Purchase Scheme)
• Pension Scheme
• Life Assurance Scheme
• Cycle to Work Scheme
• Long Service Awards
• Employee Assistance Programme & Mental Health Support
• Learning & Development Opportunities