61 mechanical project engineer jobs found

Mechanical Project Engineer - Water Industry Location: Oxfordshire Contract Type: Freelance / Contract Salary/Rate: £(Apply online only) p/d - Ltd Company or CIS GRS are seeking a skilled Mechanical Project Engineer to work on high-value MEICA water projects across Oxfordshire. You'll join a Tier 1 contractor delivering key infrastructure upgrades for UK water authorities under major capital delivery programmes (e.g. AMP8). Responsibilities: * Manage mechanical installation works across water treatment and pumping station projects * Coordinate designs, site works, fabrication drawings, and subcontractors * Ensure mechanical scopes are delivered on time, to spec, and within budget * Interface with electrical and ICA teams to ensure integrated MEICA delivery * Attend site inspections, FATs, commissioning, and handover activities Requirements: * Mechanical engineering background with experience in water or wastewater...

Mechanical Project Engineer to work on a large substation project for the next 1 – 2 years in Ipswich, Suffolk Paying £425 – 450 a day + Outside IR35 + Site/ Home working + Long Term We are currently looking for an experienced Project Engineer with a strong mechanical background to support a major substation project based in Ipswich. This is a long-term contract opportunity offering over 1 – 2 years of work, with a planned start date in July/August 2026. Role Overview The successful candidate will play a key role in delivering substation works, coordinating engineering activities, supporting site teams, and ensuring projects are delivered safely, on time, and to specification. Key Requirements * Proven experience working as a Project Engineer within the utilities, power, or energy sector * Strong mechanical engineering background * Previous experience working on substation projects is essential * Ability to coordinate subcontractors, suppliers, and site...

Mechanical Commissioning Lead – Contract (Outside IR35) Location - North West England Contract Length - 6 Months - June start Outside IR35 H9 Talent Solutions are looking for an experienced Mechanical Commissioning Lead to support the delivery and commissioning of a new-build energy asset in the North West. This is a key site-based role responsible for leading mechanical commissioning activities through pre-commissioning, cold and hot commissioning, testing, and final handover phases. The successful candidate will work closely with the Commissioning Manager, EPC contractors, OEMs, construction teams, and client representatives to ensure safe and efficient commissioning execution across all mechanical systems. This role would suit an individual with a strong background in large-scale industrial, power generation, Energy from Waste, CHP, CCGT, process plant, or heavy industrial projects. Role & Responsibilities Lead and coordinate all mechanical commissioning activities...

Job Title: Mechanical Design Engineer (Building Services) - Contract Location: Hampshire Rate: £40 per hour (Outside IR35) Contract Length: Ongoing Sector: Local Authority Projects We are currently seeking an experienced Mechanical Design Engineer for a contract role with a well-established consultancy in Hampshire. This opportunity is outside IR35, offering a competitive rate of £40 per hour and the chance to work on a variety of local authority projects. Key Responsibilities: ✔️ Mechanical design for building services projects, including heating, ventilation, and public health systems ✔️ Ensuring designs comply with local authority regulations and industry standards ✔️ Experience with Legionella risk assessments and mitigation strategies ✔️ Collaborating with internal teams and external stakeholders to deliver high-quality solutions ✔️ Site visits and surveys as required Requirements: ✅ Proven experience as a Mechanical Design Engineer in the building services sector ✅...

Contract Mechanical Design Engineer CAD: Inventor Rate: £30–£40 per hour Start: Immediate Type: Contract Length: 3 months IR35: Outside Remote: Yes Contract Mechanical Design Engineer needed to support the design and manufacture of bespoke lifting, winching and hydraulic systems. You will be responsible for the mechanical design producing detailed designs and manufacturing drawings using Autodesk Inventor. Key requirements: • Strong Autodesk Inventor experience • Proven experience as a Mechanical Design Engineer • Experience designing bespoke mechanical systems and assemblies • Ability to produce detailed manufacturing drawings and BOMs • Experience working with fabricated structures and mechanical components • Understanding of practical manufacturing and installation processes • Comfortable working within fast paced project environments This is an immediate requirement for a Mechanical Design Engineer offering £30–£40 per hour depending on experience. Please...

Mechanical Engineer Contract Aldermaston SC / DV Clearance Required Are you a Mechanical Engineer with experience supporting complex engineering projects within highly regulated environments? Do you enjoy producing technical documentation, engineering calculations and supporting projects from concept through to delivery? Would you like to work for a growing SME delivering specialist packages of work directly into AWE? What's in it for you? • ~ £60p/h DOE • Outside IR35 • Long term project work • Opportunity to work with a specialist engineering SME supporting AWE projects • Overtime opportunities available What will you be doing? • Producing mechanical engineering documentation and design deliverables • Supporting concept, scheme and detailed design activities • Carrying out engineering calculations, assessments and technical reports • Supporting project delivery across design, manufacture, installation and testing activities • Attending project meetings and design...

Project Details: 6 month contract Data Centre Fit out hall Starting Middle JunePackage: Circa £450 per day all-in rate, Outside IR35 Monday to Friday working pattern 10-hour working daysKey Responsibilities: Carry out mechanical QA/QC inspections across the project Ensure all installations are completed in line with project specifications, industry standards, and quality requirements Review and complete inspection test plans (ITPs), check sheets, and quality documentation Conduct inspections on mechanical systems including HVAC, pipework, ductwork, and associated services Identify non-conformances and support resolution processes Liaise closely with site teams, subcontractors, and client representatives Support commissioning and handover activities where required Maintain accurate QA/QC records and reporting throughout the project lifecycle Other Details Outside IR35 Need to have exp managing subcontractors / technical documentation etc Predominantly plant and equipment install

Astute is partnering with a renewable energy business in the anaerobic digestion sector who're looking for a Project Manager / Project Engineer on a 6-month contract to manage a small programme of works on an operational biogas site. The Project Manager / Project Engineer role comes with a day rate of up to £400 (Outside IR35). I'm particularly interested to speak to people with electrical or mechanical commissioning experience. Key skills Managing a programme of works around the commissioning of a CO2 recovery system Managing contractors on site, ensuring they're delivering as per the scope Ensuring the project is tracking on time and on budget Project administration duties, including progress reporting, documentation updates, meeting coordination, and maintaining accurate commissioning and project records. Location, remuneration and timeframe of the Contract Project Manager role Dungannon Outside IR35 Immediate Start Up to £400 a day (Ltd)Astute People are acting as an...

Mechanical Engineer - 12 Month Contract Birmingham / Hybrid Working Outside IR35 - £55 per hour Are you a Mechanical Engineer who enjoys working across the full project lifecycle? Do you have experience taking projects from front-end studies through to commissioning? Are you comfortable working in highly regulated industrial environments where safety and compliance are critical? What's in it for you? •£55 per hour • Outside IR35 contract • 12 month contract • Hybrid working - based from Birmingham or home • Long-term, technically challenging industrial project • Opportunity to work across concept, design and commissioning phases What will you be doing? • Supporting mechanical engineering activities across the full project lifecycle • Delivering front-end engineering studies and concept designs • Producing detailed mechanical design documentation • Supporting HAZOPs and other safety reviews • Working closely with multidisciplinary engineering teams •...

Mechanical Design Engineer Water Sector Outside IR35 Contract £500 per day Ltd We are currently recruiting for an experienced Mechanical Design Engineer to support the delivery of major water infrastructure projects within the UK water sector. This is an excellent opportunity to join a long-term AMP framework programme, working on a range of clean water and wastewater projects across the full project lifecycle. The role will involve producing and reviewing mechanical designs, supporting technical delivery, and working closely with multidisciplinary teams to ensure projects are delivered safely, efficiently, and in line with client requirements. The successful candidate will have previous experience delivering mechanical design solutions within the water sector and will be comfortable working across pumping stations, treatment works, pipework, dosing systems, and associated mechanical infrastructure. Experience working with Tier 1 contractors, design consultancies, or MEICA...

Principal Mechanical Engineer Nuclear Manufacturing Company | Near Manchester Up to £58.50 per hour | Outside IR35 4-Day Working Week (4 x 10-hour days) A specialist nuclear manufacturing company near Manchester is seeking a Principal Mechanical Engineer to support the delivery of innovative engineering solutions within a regulated industry environment. You'll play a key role in the design, compliance and delivery of complex mechanical systems, including gloveboxes and similar engineered equipment. Key Responsibilities Lead mechanical engineering design and project delivery activities Support UKCA / CE Marking compliance and technical file generation Ensure engineering solutions meet safety and regulatory standards Coordinate with multidisciplinary teams and project stakeholders Support manufacture, testing, installation and commissioning activities What We're Looking For Strong understanding of UKCA / CE Marking Experience within regulated engineering sectors Glovebox or...

Mechanical Design Engineer & Mechanical Draughtsman  3–6-month contract  Rate: £35.00 - £42.50p/h Middlesborough / Darlington / Hartlepool / Sunderland SolidWorks / PDM I am currently recruiting on behalf of a key client-based Teesside who are globally recognised engineering and manufacturing business operating across several high-profile industries including defence, marine & offshore. Due to a new project win, they are looking for experienced Mechanical Design Engineers & Draughtsman to join their team on an interim basis for an initial 3–6-month contract. For this position, you will be required to conduct the following daily duties: 3D modelling in SolidWorks - designing enclosure modifications, bespoke brackets, manifolds and internal component layouts Supporting, updating and maintaining existing 3D models and engineering drawings Finalising and issuing manufacturing drawings to the required standard Defining and applying appropriate tolerances across all...

ADDISON PROJECT PLC – Senior Project Engineer, Thornton-Cleveleys For over 25 years, Addison Project plc has delivered innovative, sustainable engineering solutions across the chemical, pharmaceutical, energy, and food & beverage sectors. As a family‑owned business with UK‑wide coverage, we combine technical excellence with a collaborative, client‑focused approach. Our fully integrated EPCM capability supported by strong CDM and HSSEQ leadership and accredited management systems ensures projects are delivered safely, efficiently, and to the highest standards from concept through to commissioning and start‑up. If you're passionate about engineering and want to join a dynamic, people‑focused consultancy driving progress and sustainability across the UK’s manufacturing and process industries, Addison Project is the place for you. Role: Senior Project Engineer (Contract outside IR35) Location: Thornton-Cleveleys Contract: 12 months Start Date: Spring 2026 WORKSCOPE Addison...

An excellent opportunity has arisen for an experienced Electrical Design Engineer to join a well-established building services consultancy in London on an contract basis outside IR35. This hybrid role will involve working as part of a multidisciplinary building services engineering team, supporting the delivery of electrical design solutions across a range of building projects. The successful Electrical Design Engineer will contribute to the development of electrical building services designs, technical documentation and coordinated BIM models. This role is based in the London office with hybrid working available, offering the chance to work on high-quality building services projects alongside experienced engineers and consultants. Key Responsibilities · As an Electrical Design Engineer, your responsibilities will include: · Producing electrical building services designs for a variety of building projects · Developing electrical schematics, layouts and...

Pipe Stress Engineer Location - Leatherhead Work pattern – 4 days office – 1 day remotely. Rate - £60 p/hr – Outside IR35 Duration – 6 months Start - ASAP Job Responsibilities: During Detail Engineering, perform Piping Stress Analysis of high temperature piping systems using a combination of practical experience and commercially available software. Implement project specifications. Work as part of a team to ensure Isometrics are being checked in a timely manner Ensure a consistent and compliant approach to project execution. FEA Analysis of specialist piping components. Analysis of new and existing piping systems on Greenfield and Brownfield Projects. Work individually or as part of a team in the home office and abroad. Communicate effectively with other engineering disciplines. Committed to multi-centre project execution. Adhere to the companies WAY engineering standards and procedures as well as provide input to their development and enhancement. Skills / Experience:...

Contract QA/QC Solar Engineer  Utility Scale (Midlands) Location Midlands, UK (Site-based) Contract Length 12 Months Day Rate Competitive DOE Overview We are supporting a leading renewable energy Developer delivering utility-scale solar PV projects across the UK and are seeking an experienced QA/QC Engineer for a live project in the Midlands. This is a site-based quality role covering both civil and electrical works, ensuring full compliance from construction through to commissioning and handover. This role sits at the interface between delivery and client — so beyond technical QA, we are looking for someone who understands what it means to operate on behalf of a developer or asset owner, not just an EPC contractor. What you’ll be doing Leading QA/QC activities across a utility-scale solar site (30MW+) Managing quality inspections across:  Civils (earthworks, piling, cable routes, structures) Electrical (DC/AC installation, inverters, cabling, containment) Ensuring...

Contract Solar Site Manager – Utility Scale (Midlands) Location Midlands, UK (Site-based) Contract Length 12–24 Months Day Rate Competitive DOE Overview We are supporting a major renewable energy developer / contractor delivering multiple utility-scale solar PV projects across the Midlands and wider UK network. We are seeking an experienced Solar Site Manager to take full responsibility for day-to-day site delivery on a live utility-scale solar farm. This is not a “labouring supervision” role — this is a leadership position on a high-value renewable asset where you will be expected to run site operations, coordinate subcontractors, and act as the key interface between delivery teams and the client / developer / asset owner. What you’ll be doing Day-to-day management of a utility-scale solar PV construction site (30MW+) Coordinating civils, electrical, and mechanical subcontractors on site Driving programme delivery and ensuring key milestones are achieved Managing site...

M&E Design Manager - Mechanical & Electrical Location: Birmingham (Site & Home-Based) Contract: 12 Months (Outside IR35) Highly Competitive Day Rate Are you an experienced M&E Design Manager with a strong technical background in managing a team of mechanical and electrical engineers? Are you confident overseeing complex M&E design packages on large-scale construction or utilities projects? We are recruiting for a Mechanical & Electrical Design Manager to join a major infrastructure project in Birmingham, managing a team delivering new water infrastructure projects. This role is key to ensuring the design and technical integration of M&E systems align with the client's requirements, industry standards, and delivery programme. This is a 12-month contract, offering a highly competitive day rate. Reporting directly to the Programme Director, you'll work closely with design consultants, contractors, and internal teams to manage the full lifecycle...

Process Engineer - 12 Month Contract Birmingham / Hybrid Working Outside IR35 - £55 per hour Are you a Process Engineer who enjoys working across the full project lifecycle? Do you have experience taking projects from front-end studies through to commissioning? Are you comfortable working in highly regulated industrial environments where safety and compliance are critical? What's in it for you? •£55 per hour • Outside IR35 contract • 12 month contract • Hybrid working - based from Birmingham or home • Long-term, technically challenging industrial project • Opportunity to work across concept, design and commissioning phases What will you be doing? • Supporting process engineering activities across the full project lifecycle • Delivering front-end engineering studies and process design activities • Producing process calculations, mass balances and technical documentation • Supporting HAZOPs and other process safety reviews • Working closely with...

A growing technology company is looking for a freelance design engineer to support the development and production scaling of innovative consumer products. This is a North West UK-based, part-time contract, Outside IR35 with a competitive hourly rate. The successful applicant will be working with a small multidisciplinary team across concept development, prototyping, supplier coordination, and manufacturing readiness. Key Responsibilities Develop and refine product and packaging concepts for manufacture Produce CAD models, technical drawings, and prototype specifications Support testing and production integration activities Coordinate suppliers and partners Assist with tooling, assembly methods, and production process improvements Help transition products from prototype through manufacture to scaled production Experience Required Background in product design, mechanical engineering, or packaging development Experience working with manufacturers and production environments...