Site Agent Civil Engineering & Infrastructure Outside IR35 Contract We are currently recruiting for an experienced Site Agent to support the delivery of major civil engineering and infrastructure projects. This role will see you taking responsibility for the safe, efficient, and high-quality delivery of works across a range of schemes, including earthworks, reinforced concrete structures, pipelines, drainage, utilities, and associated infrastructure. Working closely with project teams, subcontractors, and stakeholders, you will oversee day-to-day site operations, programme delivery, health and safety, quality assurance, and resource management. You will play a key role in coordinating multidisciplinary teams, managing construction activities, driving programme performance, and ensuring works are delivered in accordance with contractual, technical, and regulatory requirements. Previous experience working under NEC contracts and managing complex construction activities...

Senior Project Engineer (Civils) Location London, United Kingdom Overview We are seeking an experienced and highly motivated Senior Project Engineer (Civils) to support the successful delivery of major rail and infrastructure projects. The role will provide engineering leadership, assurance, and governance throughout the project lifecycle, ensuring that all design, construction, testing, and commissioning activities are delivered safely, efficiently, and in compliance with applicable legislation, industry standards, and company procedures. The successful candidate will play a key role in managing engineering assurance activities, supporting project teams, and ensuring technical excellence across complex civil engineering works. Key Responsibilities Engineering Leadership & Assurance Lead and manage the application of appropriate engineering standards across all project design and construction activities. Ensure compliance with relevant legislation, Network Rail...

We are currently recruiting for a Senior Engineer to join a tier-one joint venture on a flagship, multi-billion-pound marine and defence infrastructure programme based in Plymouth. This is a long-term assignment working within a high-integrity, secure environment, delivering complex deep-water berths and heavy civil engineering works. To support candidates traveling from outside the local area, a lodging allowance is paid . The Role Working within a highly regulated framework, you will provide essential technical leadership and engineering control on site, ensuring works meet strict quality and design specifications. Your day-to-day will involve: Technical Control: Managing and overseeing setting out, dimensional control, and engineering accuracy for major marine and heavy civil packages. Workforce & Subcontractor Management: Supervising and mentoring site engineers, direct labor, and specialist subcontractors to ensure safe and efficient delivery. HSEQ...

Job title: Electrical Engineer Job Type: Contract Start date: Immediate Duration: December 2026 (subject to extension) IR35 Status: Inside IR35 only Pay rate: Up to 405 PAYE or 550 Umbrella per day Location: Remote working - 1 day in the office and or on site required every 2 weeks, subject to client's request Role Overview: We are seeking a Senior Electrical Engineer to provide technical leadership and engineering support across a portfolio of Solar PV, Battery Energy Storage System (BESS), and private wire projects. The role involves supporting projects throughout the full lifecycle, from development and design through to construction, commissioning, and handover, ensuring solutions are safe, compliant, technically robust, and commercially viable. The successful candidate will provide technical assurance, review engineering deliverables, manage engineering risks, and work closely with multidisciplinary teams to drive successful project delivery and...

I am currently looking for an experienced Senior Engineer to join a major highways project in the Buckinghamshire area. Contract: End of June through to Christmas Requirement: 5 days per week on site Status: Outside IR35 determination (subject to review) Rate - £375 plus a day , depending on experience Role Overview We are seeking an experienced Senior /Site Engineer to join our highways project team based in Buckinghamshire. I am looking for Engineers with Highways experience. Key Responsibilities Report directly to the Sub Agent and provide technical support to the site management team. Manage and mentor a Site Engineer, reviewing setting out, quality checks, and documentation. Oversee highways works including earthworks, drainage, kerbing, surfacing, S278/S106 works and associated infrastructure. Coordinate and manage utilities works (diversions, installations, protection of services) in liaison with statutory undertakers and utility providers....

Senior Mechanical Engineer - Water Sector St Albans: Hybrid (3 Days Office) Contract: 45- 50/hr (Outside IR35) Advance TRS are supporting a rapidly growing consultancy in their search for a Senior Mechanical Engineer. Joining a newly formed London business unit, you'll have the unique opportunity to help build a team from the ground up, influence how projects are delivered, and play a significant role in the future growth of the business within the UK water market. You'll lead the mechanical design of clean water and wastewater projects, producing high-quality engineering solutions while mentoring junior engineers and coordinating multidisciplinary design teams. Key Responsibilities: Deliver mechanical design solutions for water and wastewater projects Produce calculations, reports, specifications and design drawings Lead and review work from junior engineers and CAD technicians Coordinate with suppliers, manufacturers and subcontract design teams Ensure...

Senior Engineer - Structures (Highways) Location : London / Birmingham / Manchester Rate : £50-60 per hour Inside IR35 Hours : Full-time, 37.5 hours per week, flexible hybrid working About the Role We are looking for a Senior Engineer to join a Structures Team delivering major highways projects across the UK. This role involves managing the delivery of technical outputs for multiple projects, ensuring design quality, compliance with standards, and overall technical excellence. Key Responsibilities Lead and deliver technical outputs for projects, including scheme investigation, detailed design, and construction supervision. Act as Lead Designer, reviewing and authorising design deliverables (drawings, specifications, reports, and contract documents). Conduct inspections, assessments, and feasibility studies of highway and bridge structures. Mentor and develop junior engineers, technicians, and graduates. Contribute to technical excellence, innovation, and...

Job Title: Site Engineer - NG Person Location: Cellarhead Substation, Stoke-on-Trent Staffordshire Duration: 6 months+ Sector: National Grid Infrastructure Rate: Up to 450/day DOE Pay Method: CIS Start Date: 6/7/2026 Role Overview: We are seeking an experienced Setting Out / Site Engineer to join a major National Grid infrastructure project at Sellahead 400kV Substation in Leek. The successful candidate will be responsible for setting out and surveying activities across a range of civil engineering and electrical infrastructure works associated with the delivery of a new BESS facility and substation development. This is an excellent opportunity for an engineer with previous experience on National Grid, DNO, renewable energy, power transmission or heavy civil engineering projects. Roles & Responsibilities: Carry out accurate setting out for foundations, structures, drainage, duct routes, cable trenches and associated civils works. Establish and maintain site control points...

Senior Quantity Surveyor (Plymouth) Fulltime An opportunity to work on our MOD project in Plymouth, delivering major redevelopment works over the coming years. PAYE basis Paid Holidays: 30 days per year (including bank holidays) Must Have : • Professionally qualified operator with at least 3 years post qualification experience or 5+ years relevant experience. • Academic Qualifications in Quantity Surveying (HNC, BSc, MSc or equivalent). • CSCS White PQP/AQP Card. • Bachelor s degree in Quantity Surveying, Construction Management, Civil Engineering or related field. • Extensive experience within construction or infrastructure projects. • Strong knowledge of construction contracts, procurement methods and cost control techniques. • Experience preparing cost estimates, budgets and financial forecasts. • Experience reviewing and negotiating contracts, subcontracts and variations. • Experience managing procurement processes and subcontractor packages. • Strong...

Astute's Power Team are partnering with a Leading EPC Contractor within the Energy Sector. We are currently recruiting for a HV Electrical Commissioning Engineer to join their Open Cycle Gas Turbine project based in Stewartby, Bedfordshire. The HV Electrical Commissioning Engineer position comes with a day rate from 550.00 to 575.00 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 298MW OCGT 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...

Location: Reigate, Surrey (UK) IR35 Status: Outside IR35 (Pending satisfactory QDOS Assessment) Duration: 12 Months+ (Long-term framework assignment) Sector: Tier 1 Civil Engineering (Water / Wastewater Infrastructure) About the Role We are seeking an experienced, contract Site Agent to lead the successful execution of major civil engineering packages on a long-term utility framework in Reigate. Reporting directly to the Project Manager, you will operate as the primary technical and operational lead for your section of works, managing site teams, programming, and commercial reporting. You will bring proven experience managing multi-disciplinary civil works with complex interfaces This role offers a secure, minimum 12-month assignment with a premier Top Tier contractor. Key Responsibilities Package Delivery & Autonomy: Manage and deliver large-scale civil infrastructure packages from inception to handover, supporting and reporting directly to the...

Principal Mechanical Engineer - Water Sector St Albans: Hybrid (3 Days Office) Contract: 55-65p/h (Outside IR35) Advance TRS are supporting a rapidly growing consultancy in their search for a Principal Mechanical Engineer. Joining a newly formed London business unit, you'll have the unique opportunity to help build a team from the ground up, influence how projects are delivered, and play a significant role in the future growth of the business within the UK water market. You'll lead the mechanical design of clean water and wastewater projects, producing high-quality engineering solutions while mentoring junior engineers and coordinating multidisciplinary design teams. Key Responsibilities: Deliver mechanical design solutions for water and wastewater projects Produce calculations, reports, specifications and design drawings Lead and review work from junior engineers and CAD technicians Coordinate with suppliers, manufacturers and subcontract design teams...

Site Agent Location: Norwich Rate: 400 - 500 per day (LTD or CIS) Start: Immediate Duration: Long-term project Project Overview We are seeking an experienced Site Agent to lead a section of works on a major highway project in Norwich. This is a long-term contract offering an immediate start, with lodge accommodation or a daily lodge allowance fully funded by the client for those travelling. You will have total operational responsibility for your section, managing the engineering team, supervising subcontractors, and driving production. Extensive experience delivering major roadworks under National Highways specifications is essential. Key Responsibilities Section Delivery: Take full ownership of your assigned highway package, managing the program, resources, and subcontractors to hit key milestones. Team Leadership: Manage and mentor the section site engineers and supervisors, ensuring accurate engineering control and compliance. Planning &...

Commissioning Engineer Water & Wastewater Location: Southern Water Region, UK Contract Type: Contract About CMDP+ CMDP+ has secured the AMP8 Capital Programme Strategic Delivery Partner Framework with Southern Water, continuing the successful joint venture between Costain and MWH Treatment. Between , CMDP+ will deliver critical investment in Water and Wastewater infrastructure, including upgrades to Treatment Works, Pumping Stations, and Reservoirs. The Role We are seeking a highly skilled Commissioning Engineer to lead and deliver commissioning activities across Water and Wastewater projects. You will manage the installation, testing, and handover of process plant and equipment, ensuring projects are completed safely, on time, and to the highest quality standards. You will liaise with design teams, contractors, and suppliers, and will be responsible for FAT/SAT testing, defect close-out, and the preparation of commissioning documentation and client...