74 mechanical commissioning technician jobs found

Mechanical Commissioning Technician – Major UK Infrastructure Project Location: Cumbria Contract: 4 months (Likely extension thereafter)  Rate: Negotiable (DOE)  Sector: Nuclear Decommissioning & Clean Energy A nationally significant environmental engineering programme is seeking a Mechanical Commissioning Technician to join the team delivering one of the UK’s most complex and important infrastructure projects. This long-term decommissioning initiative will ensure the safe processing and storage of legacy materials, supporting environmental protection for decades to come. Working closely with the Commissioning Engineer, you will play a hands-on role in preparing, testing, and bringing mechanical systems into operation. This includes process systems, vessels, pumps, and associated plant equipment. Key Responsibilities: Maintain safety as the highest priority, following nuclear, radiological, conventional, and environmental safety procedures. Carry out mechanical...

Exclusive Opportunity: Electrical Commissioning Engineer -  Wastewater Treatment Works Location: Thames Valley Rate: Up To £500 p/d Duration: 6-12 Months Sector: Water/Wastewater We are looking for a Commissioning Engineer with experience in the water/Wastewater sector. Who wants to Join our dynamic team and be involved in critical projects with a leading tier 1 contractor for a large Thames Water Portfolio in Thames Valley! The role is a minimum 6 months with a likely chance of extension to 12/18 months, the role is working on Thames Water Assets in the Thames Valley region ,supporting more remote operational areas for the end client, thames Water. Your Responsibilities: ·Conduct comprehensive commissioning activities on clean and Wastewater sites. ·Manage instrumentation and panel operations with precision and efficiency. ·Interpret complex technical documentation and execute various low voltage electrical tasks. ·Demonstrate proficiency in fault-finding, diagnostics,...

Exclusive Opportunity: Electrical Commissioning Engineer -  Wastewater Treatment Works Location: Thames Valley Rate: Up To £500 p/d Duration: 6-12 Months Sector: Water/Wastewater We are looking for a Commissioning Engineer with experience in the water/Wastewater sector. Who wants to Join our dynamic team and be involved in critical projects with a leading tier 1 contractor for a large Thames Water Portfolio in Thames Valley! The role is a minimum 6 months with a likely chance of extension to 12/18 months, the role is working on Thames Water Assets in the Thames Valley region ,supporting more remote operational areas for the end client, thames Water. Your Responsibilities: ·Conduct comprehensive commissioning activities on clean and Wastewater sites. ·Manage instrumentation and panel operations with precision and efficiency. ·Interpret complex technical documentation and execute various low voltage electrical tasks. ·Demonstrate proficiency in fault-finding, diagnostics,...

Role: Project Manager - Major Infrastructure / Construction Position: Contract Location: Hinkley Point C, Somerset Duration: Ongoing Contract Day Rate: Up to £537.08 p/d PAYE + 36 days annual leave // Up to £730 p/d Umbrella Play a Leading Role in the UK's Most Ambitious Infrastructure Project. Be part of a once-in-a-generation project shaping the future of the UK's clean energy landscape. Hinkley Point C is the first new nuclear power station to be built in the UK for over 25 years - a landmark project delivering low-carbon electricity to millions of homes. We're looking for a Project Manager to join the Construction & Site Common Services team, playing a key role in the planning and delivery of complex, multi-disciplinary engineering and construction packages on site. This is a chance to work on one of Europe's most exciting megaprojects - developing world-class skills and contributing to a legacy that will power Britain for decades. The Opportunity As a Project...

Commissioning Engineer – Slough – £450–£500/day (Outside IR35) Deliver Excellence in Water Infrastructure Commissioning The Role/About You We’re looking for a skilled and driven Commissioning Engineer to support the delivery of key water infrastructure upgrades within the Thames Water region. Based in Slough, this role is ideal for someone with a strong technical background in MEICA commissioning—particularly within wastewater treatment—and a proactive approach to project delivery. You’ll be responsible for managing commissioning activities across multiple sites, ensuring systems are tested, validated, and handed over in line with programme and compliance standards. The role requires excellent documentation skills, stakeholder coordination, and a hands-on approach to problem-solving. This is a fantastic opportunity for someone who thrives in a fast-paced environment and is confident working independently while collaborating with design, delivery, and client teams. The...

Commissioning Engineer – Hertfordshire – £450–£500/day (Outside IR35) Deliver Excellence in Water Infrastructure Commissioning The Role/About You We’re looking for a skilled and driven Commissioning Engineer to support the delivery of key water infrastructure upgrades within the Thames Water region. Based in Slough, this role is ideal for someone with a strong technical background in MEICA commissioning—particularly within wastewater treatment—and a proactive approach to project delivery. You’ll be responsible for managing commissioning activities across multiple sites, ensuring systems are tested, validated, and handed over in line with programme and compliance standards. The role requires excellent documentation skills, stakeholder coordination, and a hands-on approach to problem-solving. This is a fantastic opportunity for someone who thrives in a fast-paced environment and is confident working independently while collaborating with design, delivery, and client teams. The...

M&E Project Engineer – Baldock – £400-£425/day Ltd (Negotiable) Drive the Delivery of Critical Wastewater Infrastructure Projects The Role/About You We’re seeking a highly organised and technically astute M&E Project Engineer to join the delivery team on two pivotal wastewater infrastructure schemes in Hertfordshire. This is a site-based coordination role, ideal for someone with strong stakeholder management skills and a solid understanding of mechanical and electrical systems within the water sector. You’ll be responsible for overseeing the full lifecycle of Non-Infra M&E packages—from early investigations through to commissioning and handover. Your day-to-day will involve coordinating design queries, managing subcontractors, reviewing health & safety documentation, and ensuring all technical deliverables are met to programme and budget. This is not a tools-based role, but rather a strategic and operational position requiring excellent documentation, planning,...

MEICA Project Engineer (Mechanical or Electrical) - Water Industry A leading tier-1 contractor working on delivering installation and maintenance projects within the water industry is looking for MEICA Project Engineers on their United Utilities framework. If you have experience delivering projects from design through to commissioning within water, or a similar chemical/process engineering industry, then this could be the perfect role for you! Duties for MEICA Project Engineer: * Work across multiple projects or one large scheme on the delivery of MEICA services in water * Ensure that commissioning teams are kept up to date with project progress * Overseeing RAMS * Assist in ensuring a quality service is provided to the client * Being involved in technical planning and programming the projects * Ensure the project is running on time and budget * Ensure health & safety is adhered to * Be responsible for site inspections and progress reports...

Location: Stevenage (On site) Department: Spacecraft Build & Test Contract Type: 6 Months (Likely to be extended) Hourly Rate: £45p/h Inside IR35 Role Overview The EGSE Engineer is responsible for specifying, procuring, and supporting electrical test racks used during spacecraft build and test activities. This includes validation, routine maintenance, and the configuration and administration of computers within the EGSE network. Key Responsibilities Perform maintenance and fault diagnosis on electronic and RF test racks. Administer computer systems and networks across Windows and Linux platforms. Develop and maintain scripts and programs to support automated testing. Participate in environmental and launch test campaigns. Prepare test specifications, review supplier documentation, and support design and non-conformance reviews of test equipment. Essential Skills & Qualifications Degree in Electrical Engineering or a related discipline, or equivalent experience...

Are you an electrical design engineer with experience on LV Rail renewals?   Have you worked on London Underground electrical infrastructure?   Location: London - Stratford - hybrid Rate: 450 per day - (Inside IR35) Contract length: Ongoing My client are looking for a electrical design engineer to join there APCD electrical team. You will play a key role in the design, review, and assurance of electrical systems that power some of the most complex and critical transport infrastructure in the UK. This position offers the opportunity to contribute to a wide range of projects, including Station and Depot renewals, Fleet Enabling, and Platform Train Interface (PTI) upgrades. Key Responsibilities ·Deliver LV electrical designs in line with LU standards and specifications. ·Review and assure designs produced by third parties. ·Provide on-site assurance and technical support during installation and commissioning. ·Work collaboratively with multi-disciplinary teams across...

Lead SAP (Senior Authorised Person) - Offshore Wind 📍 Home-Based + Site & Vessel Visits | Office Attendance in Central Belt Scotland as Required 💼 12-Month Contract | £900-£950/day (Inside IR35 via Umbrella) 🚀 Start: ASAP Are you ready to lead commissioning on one of the most exciting offshore wind projects in the UK? We're looking for a Lead SAP to take charge of mechanical and electrical commissioning across onshore and offshore substations, export cables, and array cabling. You'll be the driving force behind safe, efficient, and high-quality execution-both on land and at sea. This is a senior-level role with real impact. You'll work closely with EPC contractors, commissioning engineers, and project teams to shape the delivery of transmission assets before they even leave the yard. From ABB SCADA integration to managing multi-disciplinary teams, this is your chance to lead from the front. 🔧 Key Responsibilities Oversee commissioning activities across transmission...

Electrical Manager About the Project - We are seeking an experienced Electrical Manager to oversee electrical works on a prestigious high-end residential development. This project involves delivering luxury apartments and bespoke residential fit-outs to exceptional standards of quality, safety, and technical excellence. The ideal candidate will have a proven background managing electrical installations within high-spec residential environments and a strong focus on quality assurance, compliance, and client satisfaction. Key Responsibilities * Lead and manage all on-site electrical activities, ensuring works are delivered to the highest quality and safety standards. * Coordinate and supervise subcontractors and electricians, ensuring adherence to project programmes and specifications. * Review and interpret electrical drawings, designs, and technical documents to ensure accuracy and compliance. * Conduct regular quality inspections and audits,...

We are currently seeking an experienced Wireman to join our team on a National Grid (NG) project site. The successful candidate will be responsible for the installation, termination, and testing of electrical control and protection wiring associated with substations and HV equipment. Wireman Key Responsibilities: * Carry out wiring, glanding, and termination of multicore cables in substations * Work from wiring diagrams and schematic drawings * Assist with control panel installation and connection work * Ensure all work complies with NG safety and technical standards * Participate in site testing and commissioning activities * Maintain high standards of safety, quality, and housekeeping Wireman Requirements: * Proven experience as a Wireman on National Grid or HV substation projects * NG Person / BESC / Competent Person (CP) authorisation (in-date) * Gold ECS card * Full UK Driving Licence...

Technology Project Manager - Fixed-Term, Full-time vacancy until December 2026 (37.5 hours) £75,953 - £79,950 Farringdon, London - the post holder may also be required to attend weekly team meetings at our Twickenham office (TW1 3RP). This is a hybrid working role, requiring office attendance at least 2 days per week. About Us: Metropolitan Thames Valley Housing is one of the UK's leading providers of affordable housing and care and support services. We employ over 1,900 people to manage and develop our large portfolio of nearly 56,000 homes serving over 75,000 customers across London, the East Midlands, Southern and the East of England. About the Role: The Cyber Security Project Manager will lead the delivery of the Cyber Essentials Security Programme, focusing on achieving compliance and certification with Cyber Essentials Plus. This role is responsible for managing the project from inception to launch, ensuring all technical planning, documentation, and governance processes are...

Project Engineering Manager - Nuclear & Defence £65 per hour | Outside IR35 | 3 days Manchester / 2 days North Wales Looking for your next challenge? We're seeking an experienced Project Engineering Manager to lead multi-discipline design and delivery on a major nuclear decommissioning project - a first-of-its-kind initiative transforming UK infrastructure in North Wales. You'll help shape the future of sustainable engineering, working with leading experts on a project that's both technically complex and environmentally significant. 🔧 What you'll do Coordinate multi-discipline engineering design and temporary works Oversee lifting operations and technical reviews Drive collaboration across design, construction & supply chain teams Ensure all work meets safety, quality, and regulatory standards Support and mentor other engineers 🎯 What you'll bring Degree in Civil or Structural Engineering (Chartered status a plus) Strong experience in temporary works and...

A global leader in large-scale engineering and construction projects within the energy and infrastructure sectors is seeking an experienced Civil QC Supervisor to join a major decommissioning and carbon capture initiative in the Liverpool Bay area. You will oversee a small team of inspectors (4-5) and ensure the effective implementation of Quality Control Plans for civil activities, working closely with project stakeholders to maintain high standards of safety, compliance, and delivery. Key Responsibilities Supervise and witness inspections for civil works, ensuring approved Quality Control Plans and documentation are implemented effectively. Verify and maintain Quality Records, ensuring compliance across subcontracted activities. Oversee the preparation of work dossiers for final handover and documentation control. Ensure proper handling, calibration, and traceability of materials, consumables, and equipment. Support the evaluation and qualification of inspection personnel...

We are partnering with a leading consultancy and professional services firm specialising in delivering innovative, modern data centre solutions. They are expanding their engineering team and seeking Intermediate and Senior Electrical Design Engineers to help deliver a wide range of technically challenging and high-value projects. This is an exciting opportunity to join a business that champions innovation, collaboration, and long-term professional development. You'll take responsibility for the design and delivery of electrical systems, from concept through to commissioning, ensuring robust and high-quality solutions for mission-critical environments. You'll be involved in a variety of consultancy packages including: * Strategic consultancy, feasibility studies, and master planning * Detailed electrical design and specification * Engineering, commissioning, and IST management * Certifications, compliance, and performance validation...

We are seeking an experienced Mechanical Fitter to join a well-established engineering team on a long-term contract near Norwich. The successful candidate will be responsible for the decommissioning, repair and assembly of mechanical systems and assemblies in a large scale industrial environment. Key Responsibilities: Assemble and fit mechanical components according to engineering drawings and specifications Carry out planned and reactive maintenance on machinery and equipment Diagnose faults and carry out repairs efficiently Ensure all work is completed to high standards and complies with health and safety regulations Collaborate with other team members and departments to ensure smooth operations Maintain accurate records of work carried out and parts used Requirements: Proven experience as a Mechanical Fitter in an industrial or manufacturing setting Strong understanding of mechanical systems, hydraulics, and pneumatics Ability to read and interpret technical drawings and...

Location: Bristol 💷 Rate: £500-£600 per day + accommodation (if required) 📅 Start: Mid-November 📄 Contract: 12-16 months (Ltd Company or CIS) The Opportunity We are seeking an experienced Senior Technical Services Manager (TSM) to join a leading Main Contractor on a mission-critical project in Bristol. With an MEP package value of approximately £10m, this is a high-profile, fast-paced scheme requiring strong technical leadership and proven delivery experience. Key Responsibilities Lead the coordination, management, and delivery of all MEP (Mechanical, Electrical, Public Health) systems. Oversee subcontractor performance, design coordination, installation quality, and commissioning activities. Work closely with design teams, client representatives, and the main contractor's project leadership to ensure technical excellence and programme compliance. Manage project documentation, testing, commissioning, and handover in line with client standards and compliance requirements....

Our client, a leader within the defence sector, is seeking an Electronics Engineer to join our Calibration & Maintenance Team, to service Electrical and Electronic Test Equipment, including Special to Type Test Equipment (STTE). These tasks include fault finding and repair of test equipment, supporting routine calibrations, commissioning of Test Equipment and drift analysis. The successful candidate will be working within an experienced team of Calibration & Maintenance Engineers supporting complex test platforms in the manufacture and test of complex missile systems. They will be trained to calibrate and support special to type factory test equipment using a range of technologies, DC to Microwave. What we're looking for from you: Minimum qualification: HNC/HND in Electrical & Electronics Engineering. Experience and knowledge in the calibration of test equipment and maintenance of test systems to component level. Able to utilise instructions, handbooks, drawings or...