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Contractor 77
commissioning engineer

77 commissioning engineer jobs found

CL
Aug 02, 2026  
Commissioning Engineer | CQV Engineer (Inside IR35)
Your new company A leading global life sciences organisation is undertaking a major capital investment programme and is seeking an experienced Commissioning Engineer to support the delivery of a new state-of-the-art laboratory and R&D facility. Working within a multidisciplinary project team, you will play a key role in ensuring complex building systems, laboratory environments and supporting infrastructure are safely commissioned and ready for operational handover Your new role As Commissioning Engineer, you will be responsible for planning, coordinating and executing commissioning activities from construction completion through to operational readiness. You will work closely with contractors, design teams, vendors and end-users to ensure systems perform to design intent and meet operational requirements.Key responsibilities include: Coordinating commissioning activities across HVAC, electrical, plumbing, automation controls, specialist laboratory systems and process...
IR35 Status:
Inside IR35

CV-Library Berkshire, UK Contractor
CL
Aug 02, 2026  
Installation & Commissioning Engineer
Installation& Commisioning Engineer Location: North Lanarkshire Salary: Base Salary + Quarterly Bonus + Overseas Travel Allowance + Enhanced Pension Job Type: Full-Time, Permanent Industry: Engineering / Special Purpose Machinery Travel: UK-wide and International Travel Required The Opportunity First Achieve Engineering is supporting a global engineering manufacturer specialising in ad vanced thermal processing and controlled atmosphere equipment used in highly regulated and demanding industries. With over 50 years of technical expertise and part of a larger international engineering group , our client designs, builds, installs and commissions bespoke capital equipment systems worl dwide. They are now seeking an Installation & Commissioning Engineer to join their UK- based engineering team. The Role This position will involve: * Supervising installation contractors on customer sites * Overseeing mechanical & electrical installation of capital...
IR35 Status:
Unknown Status

CV-Library Motherwell, North Lanarkshire Contractor
CL
Aug 01, 2026  
Commissioning Engineer
Commissioning Engineer – Water Sector (Contract) Location: Midlands (Severn Trent Water Sites) Contract: Temporary / Contract Rate: £450–£500 per day (Outside IR35 subject to determination) We are currently recruiting for an experienced Commissioning Engineer to support the delivery of water and wastewater infrastructure projects across the Severn Trent Water network in the Midlands. This is a site-based contract role, ideal for a commissioning professional with a strong MEICA background and proven experience working on UK water utility projects. The Role As a Commissioning Engineer, you will be responsible for testing, proving and bringing new water treatment facilities, wastewater treatment works and pumping stations into operation, ensuring systems are safe, reliable and fully operational before client handover. Key Responsibilities * Commissioning MEICA installations on water and wastewater treatment projects. * Carrying out Factory Acceptance Tests (FATs), Site...
IR35 Status:
Outside IR35

CV-Library CV7, Balsall Common, Solihull Contractor
CL
Aug 01, 2026  
Commissioning Engineer- Part time
Rubicon Consulting is currently recruiting for Commissioning Engineer Part time (Max 25hours per week) on a 6 Month Rolling contract, based in Staffordshire. Role Summary We are recruiting on behalf of a leading international construction and engineering contractor for an experienced Commissioning Manager to lead commissioning activities on a high-voltage substation project connected to the National Grid transmission network. This is a technically demanding role suited to a commissioning professional with a strong background in HV substation equipment, protection systems, and energisation works. You will take ownership of the commissioning process for substation assets — including switchgear, transformers, protection & control systems, and associated bay equipment — coordinating closely with client representatives, design teams, and multidisciplinary site teams through to final energisation and handover. Key Responsibilities * Develop and manage the commissioning...
IR35 Status:
Unknown Status

CV-Library Stafford, Staffordshire Contractor
CL
Jul 31, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Cardiff 9-Month Contract Outside IR35 Requirements: 5+ years' BMS commissioning experience Strong knowledge of HVAC systems and BMS principles Experience with BMS platforms Proven experience delivering commissioning projects ECS/CSCS Card (or equivalent) SMSTS or SSSTS SIS Modbus Certification If this is of interest, please get in touch for more information
IR35 Status:
Outside IR35

CV-Library Cardiff, UK Contractor
CL
Jul 30, 2026  
EC&I Commissioning Engineer
Commissioning Engineer (EC&I) - Sellafield Site Location: Sellafield, Cumbria Pay: Up to £55 per hour (Inside IR35) Contract: Full-time, site-based (4 on 4 off rotation or standard site hours) Start Date: ASAP Duration: Until April 2027 About the Role We're seeking an experienced Commissioning Engineer (EC&I) to join the team at Sellafield. This position plays a vital role in ensuring the safe, compliant, and efficient commissioning of control, instrumentation, and electrical systems within one of the UK's most complex and highly regulated industrial environments. Key Responsibilities Witness and verify vendor testing at works test stage Prepare plant commissioning test specifications. Conduct early inspections of site installations to support timely system handovers. Execute testing activities during the Integrated Plant Commissioning phase. Identify faults, propose solutions, and implement corrective actions. Coordinate commissioning technicians and support...
IR35 Status:
Inside IR35

CV-Library Seascale, Cumbria Contractor
CL
Jul 29, 2026  
Audio Visual Installation/Commissioning Engineer
Experienced AV Installation / Commissioning Engineer Location: Manchester City Centre Contract: 1–2-year contract, with potential to become a permanent role Salary: Circa £35,000–£38,000 per annum, with potential flexibility for candidates with an extended skill set We are recruiting for an experienced AV Installation / Commissioning Engineer to support large-scale projects, working primarily on-site in Manchester City Centre. This is an excellent opportunity for a skilled AV professional with strong installation, commissioning and testing experience to join a busy project environment on a long-term contract basis. The Role As an AV Installation / Commissioning Engineer, you will be involved in the delivery of large AV projects, carrying out first and second fix installation work, structured cabling, testing, commissioning and quality checks. You will work from schematics and support the successful installation and handover of a range of AV systems and equipment. Key...
IR35 Status:
Unknown Status

CV-Library 3 Dickinson St, Manchester M1 4LF, UK Contractor
CL
Jul 29, 2026  
TP141 Commissioning Engineer
TP141 Commissioning Engineer (High Voltage) Outside IR35 | Competitive Day Rate | Long-Term Projects (2 Years) East Anglia & Oxfordshire Are you a TP141 Commissioning Engineer looking for your next long-term contract on major National Grid transmission projects? We are recruiting experienced TP141 Commissioning Engineers to support the delivery of two major substation projects in East Anglia and Oxfordshire, each offering approximately two years of work. This company is a specialist high-voltage engineering company delivering end-to-end power system solutions across the transmission and distribution sectors. Its expertise includes system design, manufacturing, installation, testing, commissioning and maintenance of HV substations and protection & control systems, supporting utility, renewable energy and critical infrastructure projects throughout the UK and internationally. Working on a subcontract basis, you will play a key role in the safe commissioning and...
IR35 Status:
Outside IR35

CV-Library Birmingham, West Midlands Contractor
CL
Jul 29, 2026  
TP141 Commissioning Engineer
TP141 Commissioning Engineer (High Voltage) Outside IR35 | Competitive Day Rate | Long-Term Projects (2 Years) East Anglia & Oxfordshire Are you a TP141 Commissioning Engineer looking for your next long-term contract on major National Grid transmission projects? We are recruiting experienced TP141 Commissioning Engineers to support the delivery of two major substation projects in East Anglia and Oxfordshire, each offering approximately two years of work. This company is a specialist high-voltage engineering company delivering end-to-end power system solutions across the transmission and distribution sectors. Its expertise includes system design, manufacturing, installation, testing, commissioning and maintenance of HV substations and protection & control systems, supporting utility, renewable energy and critical infrastructure projects throughout the UK and internationally. Working on a subcontract basis, you will play a key role in the safe commissioning and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jul 29, 2026  
Mechanical Commissioning Engineer
Commissioning Manager – District Heating / Energy Centre Bradford 2 days per week 3-month contract Day rate depending on experience August to October start We are supporting a growing low-carbon heat network developer with the appointment of a Commissioning Manager for a major district heating project in Bradford. The role is focused on independent client-side commissioning assurance across an energy centre & wider district heating network. This will involve reviewing contractor documentation, attending commissioning meetings, witnessing selected tests, monitoring progress, reporting risks & advising on handover readiness. The position will suit an experienced mechanical, MEP, district heating or energy centre commissioning professional who is confident reviewing, challenging & reporting on commissioning activity without directly delivering the works. Key responsibilities: Review commissioning programmes, strategies, procedures, method statements, RAMS...
IR35 Status:
Unknown Status

CV-Library Yorkshire, UK Contractor
CL
Jul 28, 2026  
Commissioning Engineer
Role purpose: To provide 3rd line support within the MES SPEN Project Engineering team with the ability to understand bespoke, detailed customer designs and technical ownership to the businesses high profile accounts through the utilisation of specialist technical expertise. To add value, in terms of technical skills, through the issuing of detailed network solutions as well as technical leadership and implementation support. Commissioning Engineers are responsible for Project Delivery and Integration along with Project services (Design, Build and Deploy). Key accountabilities and decision ownership: * To support the development and evolution of customers products, continuously seeking to improve the customer experience through the product lifecycle. * Documenting, carrying out administrative tasks and commissioning tasks * Receive implementation plans from Project Engineers for peer review * Assess network toplogy and circuitry for project planning * Write and...
IR35 Status:
Unknown Status

CV-Library Glasgow, Glasgow City Contractor
CL
Jul 28, 2026  
Lead Mechanical Commissioning Engineer
Astute's Power Team are partnering with a Leading EPC Contractor within the Energy Sector. We are currently recruiting for a Lead Mechanical Commissioning Engineer to join their Combined Cycle Gas Turbine plant based in Adamow, Poland. The Lead Mechanical Commissioning Engineer position comes with a day rate from €500.00 to €550.00 per day outside of IR35. Role responsibilities and key skills for the role: * Lead and coordinate all mechanical commissioning activities associated with the CCGT power plant, ensuring safe, efficient and timely delivery in line with the overall commissioning programme and key project milestones. * Develop, review and execute detailed mechanical commissioning plans, procedures and system turnover strategies, ensuring activities are correctly sequenced and aligned with the wider project commissioning schedule. * Lead the pre-commissioning and commissioning of major mechanical plant and systems, including gas turbines, steam turbines, HRSGs, steam and...
IR35 Status:
Outside IR35

CV-Library Turek, Greater Poland Contractor
CL
Jul 27, 2026  
Lead Electrical Commissioning Engineer
Astute's Power Team are partnering with a Leading EPC Contractor within the Energy Sector. We are currently recruiting for a Lead Electrical Commissioning Engineer to join their Combined Cycle Gas Turbine plant based in Adamow, Poland. The Lead Electrical Commissioning Engineer position comes with a day rate from €500.00 to €550.00 per day outside of IR35. Role responsibilities and key skills for the role: Lead and coordinate all high-voltage (HV) commissioning activities associated with the 600MW CCGT plant, ensuring safe, compliant, and efficient delivery in line with project milestones. Execute detailed HV commissioning plans, switching schedules, and energisation procedures, aligned with the overall project commissioning strategy and grid connection programme. Supervise and manage pre-commissioning and commissioning of HV systems, including GIS/AIS switchgear, power transformers, generator step-up (GSU) transformers, protection & control systems, and grid interface...
IR35 Status:
Outside IR35

CV-Library Turek, Greater Poland Contractor
CL
Jul 26, 2026  
BMS Commissioning Engineer
I’m currently recruiting for a BMS Commissioning Engineer to join a well-established engineering company supporting a major long-term project based around the St Austell area. This is an outside IR35 contract with work expected to continue through until 2028, making it a strong option for contractors looking for long-term, stable work rather than short-term project moves. The company delivers BMS design, installation, commissioning and maintenance across a range of large-scale projects, working with blue-chip clients in sectors including data centres, aviation, life sciences and commercial buildings. They’re looking for an experienced BMS Commissioning Engineer with strong knowledge of Schneider EcoStruxure. You’ll ideally be confident writing software from scratch, carrying out full commissioning activities, and have solid industry experience within the BMS industry. Engineers don't need to be based in the area, so if you're happy travelling or staying away during the week,...
IR35 Status:
Outside IR35

CV-Library St Austell, Cornwall Contractor
CL
May 12, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Contract We have a fantastic contract opportunity for an experienced Tridium BMS Commissioning Engineer to join an exciting and prestigious project in London. On offer is an initial 6 month contract (with the potential to extend), c£40 - £48 per hour, and the opportunity to work on one of London’s most interesting new projects in central London The BMS Commissioning Engineer position:- As a BMS Commissioning Engineer, you will have fantastic experience and knowledge of commissioning Building Management Systems, in particular Tridium Niagara.  You will be required to perform software modifications and full commissioning. The project is in central London and is a very prestigious refurbishment of a historical building. The project is a mixed use development incorporating a hotel, high end luxury residences, and shops and will be using state of the art new smart building technology. Key skills of the BMS Commissioning Engineer:- Exceptional technical...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 12, 2026  
BMS Commissioning Engineer
We have a fantastic contract opportunity for an experienced BMS Commissioning Engineer to join an exciting project in London. On offer is an initial 3 to 6  month contract (with the potential to extend), £300 - £340 per day (outside IR35), and the opportunity to work for a successful BMS integration business. The BMS Commissioning Engineer position: - As a BMS Commissioning Engineer, you will have fantastic experience and knowledge of commissioning Building Management Systems, in particular Trend and Tridium systems.  You will be required to perform software modifications, writing, and generating graphics, working alongside a team engineers. Key skills of the BMS Commissioning Engineer: - Exceptional technical knowledge and experience of the BMS sector. Proven experience commissioning BMS systems Qualifications and experience with Trend and Tridium or Delta Ability to write and manipulate software and graphics. CSCS Skill card or equivalent Benefits of the BMS Commissioning...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 12, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer, Cylon or Tridium London £330 to £400 per day, Weekly pay Our client requires an accomplished BMS (Building Management Systems) Commissioning Engineer with Cylon Controls (or Tridium) experience to work on a major prestigious project in Central London. The work will involve the commissioning of Fan Coils Units using Cylon Controls, with on-going major plant commissioning works available thereafter. This contract will initially run for 6 months, however opportunity for extension and to join exciting projects in the future will be available for the right candidate. Role Profile The successful applicant for this BMS Commissioning Engineer role will need to have experience of using Cylon or Tridium controls to commission Fan Coil Units and major plant Key skills required:- * Experienced in the Commissioning of Building Management Systems (BMS) * Qualified and experienced with Cylon or Tridium Control systems. * CSCS Skill Card or equivalent. £330 - £400...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
May 12, 2026  
BMS Commissioning Engineering
BMS Commissioning Engineer, Tridium, Trend or Siemens Immediate start 4 - 6 month contract £300 - £360 per day Our client requires an accomplished BMS Commissioning Engineer with Tridium, Trend or Siemens Building Management Controls experience to join their team on either a project in London or a site in Hertforshire . There are several roles and projects currently available in: the City, East London and also in Hertfordshire, the best site would depend on your location and experience for each project. This is on a contract basis and will initially run for 4 to 6  months. To start immediately and is likely to be extended on a rolling basis.  This position could also be as the Lead Commissioning Engineer if you have the right experience and the rate would then reflect this. Key skills required:- Experienced in the Commissioning of Building Management Systems ( BMS ) Qualified and experienced with Tridium ,Trend or Siemens Control systems. CSCS Skill Card or equivalent is...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jul 29, 2026  
BESS Electrical Engineer
An urgent opportunity has opened for a BESS Electrical Engineer to support a live battery energy storage project that is now entering a critical final design and commissioning phase. The project has already been through delays and now needs an experienced BESS specialist who can step in quickly, take ownership of the remaining electrical design work, resolve final technical issues and help drive the project through to delivery. This is a remote outside IR35 contract with occasional site visits to Scotland, an immediate start preferred, and genuine potential for extension or a permanent role afterwards. For the right Senior BESS Electrical Engineer, there is the likelihood for contract extension and/or a permanent opportunity after the initial assignment. This is not a routine design-office role. It is a live, high-priority BESS project where your electrical design and commissioning experience will make an immediate impact. You will be joining at the point where the project needs...
IR35 Status:
Outside IR35

CV-Library G1, Glasgow, Glasgow City Contractor
CL
Jul 29, 2026  
BESS Electrical Engineer
Location: Remote - Rare site visits to Scotland (Only when essential) * Contract Duration: 6 months initially - extension &/or offer of permanent role likely thereafter * IR35: Outside IR35 * Rate: £650–£750 per day * Start: Immediate preferred, but candidates on up to 4 weeks’ notice considered An urgent opportunity has opened for a BESS Electrical Engineer to support a live battery energy storage project that is now entering a critical final design and commissioning phase. The project has already been through delays and now needs an experienced BESS specialist who can step in quickly, take ownership of the remaining electrical design work, resolve final technical issues and help drive the project through to delivery. This is a remote outside IR35 contract with occasional site visits to Scotland, an immediate start preferred, and genuine potential for extension or a permanent role afterwards. For the right Senior BESS Electrical Engineer, there is the likelihood...
IR35 Status:
Outside IR35

CV-Library Edinburgh, City of Edinburgh Contractor
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