Commissioning Engineer (Mechanical)

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We are seeking an experienced Commissioning Engineer with Mechanical experience to support a major defence project at a secure, highly regulated site near Reading. This is a mid-level role, supporting the management team; site-based and requiring a high level of technical expertise, and experience in commissioning, testing, and assurance of mechanical systems and equipment within safety-critical environments.

Role: Commissioning Engineer – Mechanical Bias – Location: Reading (site-based) – Salary: £40 per hour (based on year's experience)

Key Responsibilities

  • Commissioning, testing, and validation of mechanical equipment on a complex defence project and on occasion provide mentorship to junior commissioning engineers and site teams.
  • Follow commissioning strategies, test procedures, and method statements, alongside supporting functional testing, fault finding, and troubleshooting of complex mechanical systems.
  • Ensure all commissioning activities comply with project requirements, CDM regulations, and site safety procedures.
  • Produce and follow high-quality technical reports, test records, and handover documentation and lead technical reviews, progress meetings, and commissioning coordination sessions.
  • Support the resolution of technical issues, non-conformances, and commissioning shortfalls while acting as a key technical interface between commissioning, design, construction, and safety teams.

Essential Experience & Skills

  • Proven experience in a Commissioning Engineer (Mechanical bias) role within a highly regulated industry (defence, nuclear, petrochemical, utilities, or similar).
  • Strong technical knowledge of mechanical engineering commissioning processes, standards, and best practice.
  • In-depth understanding of CDM regulations and formal permit-to-work systems.
  • Strong fault-finding and problem-solving capability on complex systems.

Please note that this role requires Security Clearance, if clearance is not held, this role will not be suitable for you!

#J-18808-Ljbffr”, “datePosted”: “2026-04-29”, “hiringOrganization”: { “@type”: “Organization”, “name”: “Carrington West”, “sameAs”: “https://uk.whatjobs.com/pub_api__cpl__417348970__4861?utm_campaign=publisher&utm_medium=api&utm_source=4861&geoID=424” }, “jobLocation”: { “@type”: “Place”, “address”: { “@type”: “PostalAddress”, “addressLocality”: “Reading” } } }
Company: Carrington West
Apply for the Commissioning Engineer (Mechanical)
Location: Reading
Job Description:

We are seeking an experienced Commissioning Engineer with Mechanical experience to support a major defence project at a secure, highly regulated site near Reading. This is a mid-level role, supporting the management team; site-based and requiring a high level of technical expertise, and experience in commissioning, testing, and assurance of mechanical systems and equipment within safety-critical environments.

Role: Commissioning Engineer – Mechanical Bias – Location: Reading (site-based) – Salary: £40 per hour (based on year’s experience)

Key Responsibilities

  • Commissioning, testing, and validation of mechanical equipment on a complex defence project and on occasion provide mentorship to junior commissioning engineers and site teams.
  • Follow commissioning strategies, test procedures, and method statements, alongside supporting functional testing, fault finding, and troubleshooting of complex mechanical systems.
  • Ensure all commissioning activities comply with project requirements, CDM regulations, and site safety procedures.
  • Produce and follow high-quality technical reports, test records, and handover documentation and lead technical reviews, progress meetings, and commissioning coordination sessions.
  • Support the resolution of technical issues, non-conformances, and commissioning shortfalls while acting as a key technical interface between commissioning, design, construction, and safety teams.

Essential Experience & Skills

  • Proven experience in a Commissioning Engineer (Mechanical bias) role within a highly regulated industry (defence, nuclear, petrochemical, utilities, or similar).
  • Strong technical knowledge of mechanical engineering commissioning processes, standards, and best practice.
  • In-depth understanding of CDM regulations and formal permit-to-work systems.
  • Strong fault-finding and problem-solving capability on complex systems.

Please note that this role requires Security Clearance, if clearance is not held, this role will not be suitable for you!

#J-18808-Ljbffr…

Posted: April 29th, 2026