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Contract Onsite principal engineer
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Engineering  (12)
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ERSG Ltd
23 Feb, 2026
Contract
Senior OHL Design engineer
£600 - £750 daily
ERSG Ltd United Kingdom
Your primary focus in the role of Principal Overhead Line Engineer to provide project technical support and leadership for the overhead lines teams on transmission projects. This team will work on various projects encompassing overhead transmission lines up to 400kV. Provide technical support and lead the team in delivering overhead line design on complex multi-discipline projects. Provide technical expertise in bids and proposals and represent the company in client meetings as Principal Engineer, applying your experience and expertise to a range of exciting and interesting projects. Take full responsibility for project scope and technical delivery of overhead line works. Provide expert technical evaluations and offer problem-solving solutions to different team members. Support in writing proposals and outlining all project details, including the timeline, resources, budget, objectives, and goals. Provide the technical support and input throughout the project...
Eden Brown
01 Mar, 2026
Contract
Senior Electrical Design Engineer
£50.00 - £65.00 hourly
Eden Brown 39 Holloway Rd, London N7 8JP, UK
We are working with a leader in the hyper scale global data centre space -their portfolio includes hyperscale facilities for global tech giants, multi-megawatt data halls, and cutting-edge colocation sites. This is an opportunity to work with a team that sets the benchmark for technical excellence and innovation in the data centre sector. The data centres are at stage two and three so a good time to become involved. The position is as a Senior or Principal Electrical Engineer, you will play a key role in designing and delivering complex electrical systems for large-scale data centres collaborating with multidisciplinary teams to ensure resilient, high-performance solutions for some of the most advanced facilities in the industry. What you'll need to succeed Strong experience in HV, LV, generators, and UPS systems, or a willingness to learn and develop in these areas. Proven background in electrical design within building services. Ability to manage projects and mentor...
Rullion Managed Services
24 Feb, 2026
Contract
M&E Engineer
£300 - £350 daily
Rullion Managed Services Somerset, UK
Job Purpose / Overview The role will operationally report to the Transverse Discipline Lead within the Integrated Transverse Team, and functionally report to an Engineering Lead within the MEH and Civils Operational Branch of JDO, Bridgwater. Start : ASAP Location: Bridgwater, Somerset Pay: Day rate depending on experience - PAYE or Umbrella. Will be discussed in more detail The Transverse Engineering team is formed of client, UK engineers and Responsible Designer engineers from EPR Engineering. The post-holder will be a Mechanical or Materials Engineer, contributing to the nuclear safety assessment and technical assessment of engineering queries raised by the site Contractor on the M&E scope across the CI/BOP and Nuclear Island buildings. The role will consist of both client and responsible designer activities. The role will be focused on the mechanical discipline but will be interfaced with other disciplines and with several parties, such the site...
Damia Group Ltd
23 Feb, 2026
Contract
Mechanical Engineer
£475 - £500 daily
Damia Group Ltd Leven KY8, UK
Mechanical Engineer (Standalone Mechanical Role) - 6 months - Leven - 505 per day inside IR35 Key Responsibilities: Overseeing installation of mechanical equipment involved in the new production line Working closely with contractors, principal contractor, and principal designer Providing mechanical expertise across project stages Participating in technical discussions and decision-making Preferred Background: FMCG, ideally bottling industry experience Qualifications: Mandatory: Time-served apprenticeship or strong mechanical engineering experience Preferable: HND/degree in Mechanical Engineering Hours: Mon-Thu: 8am-5pm Fri: Typically finish between 3-4pm Mechanical Engineer (Standalone Mechanical Role) - 6 months - Leven - 505 per day inside IR35 Damia Group Limited acts as an employment agency for permanent recruitment and employment business for the supply of temporary workers. By applying for this job you accept our Data Protection...
Rullion Managed Services
23 Feb, 2026
Contract
Integration Engineer
£345 - £468 daily
Rullion Managed Services Nether Stowey, Bridgwater TA5, UK
Role: Integration Engineer Position: Contract Location: Bridgwater - SDC / HPC Duration: Ongoing Contract Pay: 345 p/d PAYE + 36 Days Annual Leave 468.92 p/d Umbrella Shape the Infrastructure of the UK's Largest Construction Project Rullion is supporting the HPC Delivery Integration Team in appointing a Civil Integration Engineer to help coordinate and de-risk infrastructure works across the site. This role sits within the Safety & Schedule Assurance / PMO function , supporting the planning and coordination of major civil and infrastructure works outside the main buildings - including access routes, utilities corridors, drainage, earthworks, enabling works and supporting structures. This is not a pure design role. It is a delivery-facing integration role focused on ensuring work is sequenced, resourced, and buildable before it hits site. The Role As an Integration Engineer (Civils), you will support the Area Integration Senior...
Advance TRS
23 Feb, 2026
Contract
M&E Project Engineer (Rail experience)
£500 - £550 daily
Advance TRS Birmingham, UK
Project Engineer - M&E / Building Services (Railway Buildings) Contract Inside IR- 550 p/day Birmingham (Hybrid) We're seeking an experienced M&E / Building Services Project Engineer to support a portfolio of UK railway building projects . This role is based in Birmingham with 1-2 days a week in the office and occasional site visits. Responsibilities Deliver and coordinate M&E / Building Services packages across railway buildings. Manage contractors & consultants, technical queries, and compliance with railway standards. Oversee services such as M&E systems such as lighting, small power, LV, fire systems, Support assurance, inspections, and safe delivery in operational rail environments. Experience Required Proven M&E / Building Services experience on railway buildings (stations, depots, operational buildings). Background with Principal Contractors or client-side rail organisations . Experience managing building...
Millbank Holdings
23 Feb, 2026
Contract
Senior Mechanical Engineer
£40.00 - £60.00 hourly
Millbank Holdings Manchester, UK
Senior Mechanical Engineer (water sector) Ready to take the lead on complex mechanical design projects? Do you have extensive experience in hydraulic design and a strong background in the water industry? Are you confident guiding teams and delivering high-quality engineering solutions? The Opportunity We re seeking a Senior Mechanical Engineer to join a leading engineering consultancy, working on innovative water sector projects. This is a chance to influence design standards and mentor the next generation of engineers. The Role This role would suit candidates currently working as Mechanical Design Engineer, Senior Design Engineer, Project Engineer, Hydraulic Engineer, Principal Mechanical Engineer, Mechanical Project Manager, Water Engineer, M&E Engineer, Design Lead, or Engineering Consultant. We would also welcome applications from professionals in power generation, process engineering, utilities, infrastructure, or environmental engineering. Your...
Eden Brown
23 Feb, 2026
Contract
Senior Electrical Design Engineers
£50.00 - £70.00 hourly
Eden Brown London, UK
Great opportunity with a market leader to join their mission critical team working on key long term projects within the DC space - both hyper scale and co-lo. They are a global player with an outstanding market leader with a great pipeline of future work They are looking for experienced senior/ principal or associate level design engineers to join them or a long term basis working on a hybrid or semi-remote basis (by agreement) You should have current and developed experience as an electrical design engineer within the building services space and also with the mission critical / data centre space. Excellent rates and position outside ir35 Your expert recruitment consultant is Trevor Parsons, call today on (phone number removed) or email (url removed) Eden Brown is committed to equality in the workplace and is an equal opportunity employer. Eden Brown is acting as an Employment Business in relation to this vacancy.
Rullion Managed Services
23 Feb, 2026
Contract
Site Delivery Lead
Rullion Managed Services Leiston IP16, UK
We have a current opportunity for a Site Construction Delivery Lead/ Construction Director on an inside ir35 contract basis. The position will be based in Suffolk with some hybrid working. For further information about this position please apply. Reporting to the Site Delivery Director, this post is responsible for supporting the overarching direction & leadership of activities associated with the full life cycle delivery of a section of the Site Delivery footprint including Capital Works delivery and Principal Contractor responsibilities. You will have responsibility to lead/manage a group of Senior Managers, with delegated principal contractor responsibility for delivery of scope including Enabling works, Major Civils, Networks and Buildings. The role will entail management of a matrix team of wider disciplines forming the project Area Management Delivery team eg: the SZC quality team, safety team and suppliers. Focus of scope includes areas across the Site Delivery...
Rullion Managed Services
23 Feb, 2026
Contract
Fire Safety Engineer
£555 - £750 daily
Rullion Managed Services Somerset, UK
Role: Fire Safety Engineer Position: Contract Location: Hinkley Point C, Somerset Duration: 12 months plus Pay: 555 (paye), 750 umbrella The Role The Fire Safety Specialist is part of a team of dedicated fire safety and compliance professionals reporting to the Head of Site Environment, Fire Safety, Radiation Protection & Harbours. The main purpose of the job is to determine and document the fire safety strategy, develop supporting project standards and guidance, drive improvements in safety culture, management systems, performance and to coordinate and cooperate with the NNB Fire Safety Team to assist them in delivering their aims effectively. This will include, but is not limited to, problem solving and establishing innovative solutions to fire safety challenges faced during construction and commissioning, recommending temporary fire safety solutions to include temporary compartmentation, smoke control, fire barriers, fire water supply, fire alarm and...
Rullion Managed Services
23 Feb, 2026
Contract
Configuration Engineer
£220 - £300 daily
Rullion Managed Services Nether Stowey, Bridgwater TA5, UK
Role: Configuration Engineer Position: Contract Location: Hinkley Point C and SDC, Somerset Duration: 12 Months Rolling Rate: Circa 220 p/d PAYE + 36 days annual leave Circa 300 p/d Umbrella Job Purpose / Overview As a Configuration Engineer , you will be part of a growing multidisciplinary team responsible for delivering Work Management Support and maintaining the digital As-Built configuration required to build, commission, and operate Hinkley Point C Power Station. This role focuses on data extraction, validation, and assembly into datasets aligned with business rules and ready for submission to Asset Suite 9 (HPC's chosen Enterprise Asset Management (EAM) system). You will support the population of the Project's Master Equipment List and ensure accurate attribute data within HPC's EAM tool. Principal Accountabilities Population of the Equipment module in Asset Suite 9 with accurate asset identifiers and attributes. Performing data quality assurance...
Rullion Managed Services
23 Feb, 2026
Contract
Fire Safety Advisor
£280 - £380 daily
Rullion Managed Services Somerset, UK
Role: Fire Safety Advisor Position: Contract Location: HPC, Somerset Duration: Ongoing Pay: 280 paye pd - 380 umbrella pd Build the Future with the UK's Largest Infrastructure Project Rullion is proud to partner with one of the UK's most ambitious energy projects - Hinkley Point C (HPC) - in search of a highly capable Fire Safety Advisor to join the Fire Safety Team. The Role The Fire Safety Advisor is part of a team of specialist fire safety and compliance professionals reporting to the Fire Safety Manager. The main purpose of the job is to provide advice and guidance on fire safety matters to the Principal Contractor (NNB GenCo) to ensure fire safety standards are set and assure the maintenance of these standards across the HPC project. The post holder will also support and promote the development of a positive Fire safety culture amongst a wide array of Contractors and stakeholders, support the development and implementation of fire safety systems and...
ATA Recruitment
23 Feb, 2026
Contract
Site Manager
£375 - £400 daily
ATA Recruitment Oadby, UK
Site Manager (CSCS Black Card, IOSH/NEBOSH, SMSTS or SSSTS are essential) Location: Leicester Contract Type: 7 Month Contract (with potential extension) Working Hours: Monday to Friday, (7:00 AM 5:00 PM) Rates: £375-£400 per day Our client is a company that turns waste into products, helping reduce waste, pollution, and conserve resources. In the UK, they process 1.97 million tonnes of waste a year, recycling 73% and aiming to keep 85% out of landfills. Globally, they handle 15 million tonnes of waste annually, recycling 90% and preventing 3 million tonnes of carbon pollution. Key Responsibilities: The successful candidate will primarily support overseeing on-site construction activities to ensure compliance with Principal Contractor responsibilities under the CDM Regulations 2015. Supervising contractors on-site to ensure adherence to safety rules and site protocols. Reviewing and accepting Risk Assessments and Method Statements (RAMS). Coordinating daily activities...
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