Freelancer UK
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides
  • Sign in
  • Sign up
  • All Jobs
  • Outside IR35
  • Agencies
  • Post a Job
  • Pricing
  • Guides

Email me jobs like this

Email me jobs like this
Refine Search
Search within
100 miles
10 miles 20 miles 50 miles 100 miles 200 miles
Refine by IR35 Status
Unknown Status 18 Outside IR35 8 Inside IR35 3
Refine by Categories
Engineering 21 Construction 6 Information Technology 1
Refine by Job Type
Contractor 29
London commissioning engineer

29 commissioning engineer jobs found in London

CL
Jul 23, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer 📍 London Region 📅 9-Month Contract 🪙 Outside IR35 I'm recruiting for an experienced BMS Commissioning Engineer to support a major project across the London region. This is an excellent opportunity for a commissioning engineer with a strong background in delivering BMS projects from pre-commissioning through to final handover. The Role: Commission, test, and optimise Building Management Systems (BMS) to ensure they operate efficiently and meet project specifications. Produce commissioning documentation, reports, and support final client demonstrations and handovers. Diagnose and resolve commissioning issues, making software and control strategy adjustments where required. Carry out point-to-point testing, functional testing, and system validation across HVAC plant and associated controls. Requirements: 5+ years' experience commissioning Building Management Systems. Strong understanding of HVAC systems, control strategies, and BMS principles....
IR35 Status:
Outside IR35

CV-Library London, UK 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
Jul 24, 2026  
Fire Alarm Commissioning Engineer – London - £45K
Fire Alarm Commissioning Engineer – London - £45,000 Salary Package: £40,000 - £45,000 Overtime Company Van – Private Use Travel Time – Give 30 mins EW Call Out Rota – 1 in 4 - £150 Standby 25 Days Holidays Plus Bank Holidays Healthcare Training & Courses   Area Of Cover: London & Home Counties   Responsibilities: Maintenance of large complex Fire Alarm Systems Commissioning and programming of complex cause and effect Carrying out reports Carrying out audits Fault Finding Remedials Small works
IR35 Status:
Unknown Status

CV-Library Central London, London WC2N 5DU, UK Contractor
CL
Jul 22, 2026  
BMS Commissioning Engineer
BMS Commissioning Engineer Location: North Acton, London Contract: Long-term Contract Start Date: Immediate We are currently seeking an experienced BMS Commissioning Engineer to join a leading controls specialist on a major, long-term critical infrastructure project in North Acton. This is an excellent opportunity to work on a high-profile project with work secured through to May next year, offering long-term stability and the chance to be part of a highly experienced engineering team. The Role As a BMS Commissioning Engineer, you will be responsible for the commissioning, testing and optimisation of Building Management Systems, ensuring systems are delivered safely, efficiently and to the highest standard. You will be working across a modern critical environment, carrying out commissioning activities, fault finding, software modifications where required, and supporting the project through to successful completion. Key Responsibilities Commission BMS systems on site Test,...
IR35 Status:
Unknown Status

CV-Library Acton, London Contractor
CL
Jul 22, 2026  
Electrical Commissioning Engineer
MPI is looking for an ELECTRICAL TEST / COMMISSIONING ENGINEER for our client based in St. Albans Contract: Temp to Perm Salary – to be discussed based on experience The Company is a manufacturer of low voltage switchgear. The position of Electrical Test / Commissioning Engineer would be based between the Company premises located in St Albans and the client’s project sites. The ideal candidate should have experience in the electrical testing of LV switchboards including such items as protection relays, controls and metering. Experience of PLC systems would be an advantage. The ability to read and understand electrical schematic diagrams is essential. The ability to test and demonstrate the operation of switchgear at client inspections, either at the Company premises or at project sites, is essential. The main roles with this position include (but are not limited to) the following: * Electrical test of LV switchgear and control panels. * Carry out tests witnessed by...
IR35 Status:
Unknown Status

CV-Library St Albans, Hertfordshire Contractor
CL
Jul 25, 2026  
EC&I Commissioning Engineer
About this position: We are looking for a Hands-On Commissioning Engineer to support commissioning activities at AWE Burghfield. This site-based contract requires experience with low voltage electrical systems and instrumentation. DV clearance is preferred, but SC-cleared candidates will also be considered. Job Responsibilities: * Commission and test LV electrical systems and field instrumentation. * Carry out loop checks, I/O checks, functional testing, and fault finding. * Test and commission control valves, actuated valves, pressure transmitters, pressure switches, temperature sensors, flow meters, and level instruments. * Verify calibration and operation of instrumentation. * Complete commissioning documentation and support system handovers. * Ensure all work is carried out safely and in line with site procedures. Experience Required: * Proven commissioning experience within nuclear, defence, process, or industrial environments. * Strong hands-on...
IR35 Status:
Unknown Status

CV-Library Burghfield, West Berkshire Contractor
CL
Jul 25, 2026  
TP141 Commissioning Engineer
Rubicon Consulting is currently recruiting for TP141 Commissioning Engineer on a 1 Month Contract, based in Norwich. Role Summary We are seeking an experienced TP141 Commissioning Engineer to support commissioning activities across high-voltage electrical substations. The ideal candidate will have hands-on experience working on 132 kV, 275 kV, and 400 kV systems and a strong background in testing, commissioning, and energisation of substation equipment. Key Responsibilities * Execute commissioning, testing, and energisation of substation equipment at 132/275/400 kV/KVA * Conduct functional testing of protection and control systems, switchgear, transformers, and associated substation equipment. * Review and interpret technical drawings, schematics, and commissioning documentation. * Prepare detailed commissioning procedures, test sheets, and reports. * Coordinate with project managers, construction teams, system operators, and client representatives to ensure...
IR35 Status:
Unknown Status

CV-Library East of England, UK Contractor
CL
Jul 25, 2026  
TP141 Commissioning Engineer - National Grid
TP141 Commissioning Engineer Location: Bramford Substation, Suffolk Rate: £115.00 per hour Contract: Outside IR35 (LTD) Start Date: 13th July 2026 End Date: 9th August 2026 Hours: 50 Hours Per Week Duration: 4 Weeks+ (Extensions Probable) Overview: We are currently recruiting for an experienced TP141 Commissioning Engineer to support the energisation activities on the EA3 Substation project at Bramford. Working on behalf of my client, you will play a key role in the safe commissioning and energisation of high voltage electrical systems, ensuring all works are completed in accordance with TP141 procedures, project specifications and National Grid standards. This is an excellent opportunity for an experienced Commissioning Engineer looking to work on a major UK transmission infrastructure project on an Outside IR35 contract. Key Responsibilities: Plan and carry out commissioning and testing activities on HV electrical systems. Act as an authorised TP141 Commissioning Engineer...
IR35 Status:
Outside IR35

CV-Library Ipswich, Suffolk 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
May 12, 2026  
BMS Project Manager
We have a fantastic contract opportunity for an experienced BMS Project Manager to join an exciting project in London. On offer for the successful BMS Project Manager is a 12 month contract, £350 - £450 per day, and the opportunity to work for a successful BMS intelligent integration business. The BMS Project Manager role:- As a BMS Project Manager, you will be a highly skilled, professional and driven individual who has a wealth of knowledge and background in the BMS sector. You will be required to liaise confidently and positively with the client delivering a fantastic service, attending progress meetings, managing sub-contractors, commissioning engineers, and covering all aspects of project management. To apply you must have a proven track record of managing large BMS projects. Key Skills required of BMS Project Manager:- * Exceptional knowledge and background in the BMS industry. * Proven track record of managing large BMS projects, all aspects. * Strong commercial and...
IR35 Status:
Outside IR35

CV-Library London, UK Contractor
CL
Jul 19, 2026  
Project Engineer
Role: Project Engineer (Civil or Mechanical Engineering Bias) Location:London (multiple positions/areas) Rate: £475 p/d (inside IR35/Umbrella PAYE) Duration: 12 months+/Ongoing Industry: Water/Wastewater Are you ready to take the next step in your engineering career and play a key role in delivering complex, high-value infrastructure projects? We are seeking driven and capable Project Engineer's to support the successful delivery of a major Multi discipline projects for a leading partner to Thames Water. As a Project Engineer, you will be involved throughout the full project lifecycle, from initial planning and design coordination through to construction, commissioning and handover. Working closely with Project Managers, site teams, subcontractors and clients, you will help ensure projects are delivered safely, on time, within budget and to the highest quality standards. This role offers a varied mix of technical, commercial and operational responsibilities, providing...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jul 01, 2026  
Mechanical Project Engineer
Mechanical Project Engineer Tier 1 MEP Contractor | Data Centre Projects 📍 East London 💷 Permanent or Freelance (CIS / Ltd) I’m currently representing a market-leading Tier 1 MEP Contractor with a strong presence across the UK and Europe, delivering complex projects across the Data Centre, Commercial, Infrastructure and Life Sciences sectors. Due to continued growth and a secured pipeline of mission critical projects, they are now looking to appoint a Mechanical Project Engineer to join the delivery team on a major Data Centre development in East London. This is an excellent opportunity to work on a technically challenging, fast-paced project with a highly experienced delivery team and genuine long-term progression opportunities within one of the industry’s most sought-after sectors. The Opportunity Working alongside Senior Project Managers and site teams, you’ll play a key role in the delivery and coordination of mechanical building services packages across a large-scale...
IR35 Status:
Unknown Status

CV-Library E1, Whitechapel, Greater London Contractor
CL
Jul 25, 2026  
QA/QC Engineer
We are currently representing a leading M&E contractor delivering one of London's flagship hyperscale data centre developments in North West London Due to continued growth, we are looking to appoint experienced QA/QC Engineers to join the project delivery team. The current scheme is scheduled to run until January 2027, with a brand-new project already secured, offering excellent long-term continuity for the successful candidates. Whether you're looking for a permanent position or a long-term contract, this is an excellent opportunity to join a business with a strong pipeline of mission-critical projects across London and the South East. Key Responsibilities * Implement and maintain project QA/QC procedures and inspection processes. * Review and manage Inspection & Test Plans (ITPs), check sheets and quality documentation. * Carry out inspections to ensure installations comply with project specifications, drawings and industry standards. *...
IR35 Status:
Unknown Status

CV-Library Ealing, Greater London Contractor
CL
Jul 25, 2026  
QA/QC Manager
We are currently representing a leading M&E contractor delivering one of London's flagship hyperscale data centre developments in North West London Due to continued growth, we are looking to appoint experienced QA/QC Manager to join the project delivery team. The current scheme is scheduled to run until January 2027, with a brand-new project already secured, offering excellent long-term continuity for the successful candidates. Whether you're looking for a permanent position or a long-term contract, this is an excellent opportunity to join a business with a strong pipeline of mission-critical projects across London and the South East. Key Responsibilities * Implement and maintain project QA/QC procedures and inspection processes. * Review and manage Inspection & Test Plans (ITPs), check sheets and quality documentation. * Carry out inspections to ensure installations comply with project specifications, drawings and industry standards. *...
IR35 Status:
Unknown Status

CV-Library Ealing, Greater London Contractor
CL
Jul 22, 2026  
Fire Protection Engineer
MEP Fire Protection Engineer Contract: Inside IR35 (Umbrella PAYE) Location: Full-time onsite NW London Hours: Mon-Fri, 07:30-17:30 We are looking for an experienced MEP Fire Protection Engineer to support the delivery of Passive & Structural Fire Protection works across 12 Tunnel assets. Reporting to the MEP Delivery Manager and Passive Fire Package Manager, you will ensure works are delivered safely, on programme, and to the highest quality standards. Key Requirements: Proven experience delivering Passive & Structural Fire Protection systems. Strong knowledge of design, installation, testing, commissioning, and handover. Degree or equivalent in Fire, Electrical, or Civil Engineering. Experience working under NEC contracts. Strong stakeholder, subcontractor, and programme management skills. Proficient in MS Office, Revit, and Navisworks. CSCS Card and SMSTS/SSSTS certification required.Join a major infrastructure project and play a key role in delivering critical...
IR35 Status:
Inside IR35

CV-Library Ruislip, London Contractor
CL
Jul 18, 2026  
Electrical Engineer
Electrical Engineer – Heathrow Airport Start Date: Monday 6th July Location: Heathrow Airport Job Type: Long-Term Contract Hours: Monday to Friday £27.00 - £33.75ph We are currently recruiting an experienced Electrical Engineer for a long-term project based at Heathrow Airport, with an immediate start available on Monday 29th June. This is an excellent opportunity to join a well-established team working on industrial electrical installations within a fast-paced airport environment. Applicants must be able to provide a five-year verifiable employment history and be eligible to obtain an airside pass. Key Responsibilities * Installation, wiring, and termination of industrial electrical systems. * Working on large industrial control panels and associated equipment. * Fault finding, testing, and commissioning where required. * Reading and interpreting electrical drawings and schematics. * Ensuring all work is completed safely and in line with current regulations....
IR35 Status:
Unknown Status

CV-Library Hillingdon, Greater London Contractor
CL
Jul 22, 2026  
Electrical Project Engineer
MPI is looking for an ELECTRICAL PROJECT ENGINEER for our client based in St. Albans Contract: Temp to Perm Salary: £40,000 to £50,000 / Annum The Company is a manufacturer of low voltage switchgear. The position of Electrical Project Engineer would be based at the Company premises located in St. Albans, Hertfordshire. The ideal candidate should be experienced in the electrical design of LV switchgear and package sub-stations. These can typically incorporate such items as protection relays and power factor correction equipment. Some experience would also be beneficial in the electrical design of control and monitoring systems together with electrical schematic diagrams. Ability to use AutoCAD is desirable. Knowledge of MV switchgear, which is supplied by the Company as part of a contract, would be an advantage. The main roles with this position include (but are not limited to) the following: * Controlling projects from receipt of contract to installation and...
IR35 Status:
Unknown Status

CV-Library St Albans, Hertfordshire Contractor
CL
Jul 23, 2026  
EC&I Engineer
We are seeking an experienced EC&I Engineer, working within a small team of multi disciplined engineers, you will be responsible for developing electrical and instrumentation design drawings, ensuring compliance with industry standards, and collaborating with engineers and project teams to deliver high-quality solutions. This is a full-time position, based in our Grimsby offices with occasional travel. Key Responsibilities will include * Creating detailed E&I designs, schematics, and layouts using CAD software (AutoCAD, EPLAN, etc.). * Develop wiring diagrams, loop diagrams, P&IDs, and panel layouts for industrial projects. * Assist in the selection of cables, instrumentation, control systems, and power distribution equipment. * Ensure designs comply with relevant industry standards (e.g. BS, IEC ATEX). * Collaborate with engineers, project managers, and site teams to ensure design accuracy. * Perform site surveys and incorporate field data into...
IR35 Status:
Unknown Status

CV-Library Hertford, Hertfordshire Contractor
  • Follow us on:
  • Facebook
  • Twitter
  • Instagram
  • LinkedIn
  • Home
  • Contact
  • About Us
  • Terms & Conditions
  • Employer
  • Post a Job
  • Search Resumes
  • Sign in
  • Job Seeker
  • Find Jobs
  • Outside IR35
  • Create Resume
  • Sign in
© 2008-2026 Powered by SmartJobBoard Job Board Software