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Contractor 10
Engineering principal structural engineer

10 principal structural engineer jobs found

CL
Mar 04, 2026  
Principal Structural Engineer
World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a Principal Structural Engineer subcontractor on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.     Candidates with a FE / FEA background ( Structural Engineer / Structural Analysis / Stress Engineer ) ideally from the Defence / Aerospace industry would be suitable for this position. Rate: £50.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be onsite 4 days per week.  a 4-Day week of Monday to Thursday is possible. Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Principal Structural Engineer Job Description: The Mechanical Analysis Group are looking for a Principal...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Apr 24, 2026  
Principal Thermal Mechanical Engineer
The Principal Thermal Mechanical Engineer is a key role that leads the mechanical engineering aspects of the development of new radar technologies. Reporting to the Project Engineering Manager, this role must have an expert thermal mechanical knowledge with experience in the general design, build, integration and test of complex mechanical systems. The holder will themselves be a subject matter expert the area of Thermal Mechanical Systems, with experience in other mechanical areas for example, Computational Fluid Dynamics, Finite Element Analysis, Propulsion or Structures. They may also hold Mechanical Design Authority for the Future Radar Products. Experience and knowledge of the design and implementation of thermal management systems including heat exchangers is essential. Experience and knowledge of the design, build, test and use of composite structural materials is highly desirable. Familiarity with the content, applicability and use of relevant Standards is highly...
IR35 Status:
Unknown Status

CV-Library Isle of Wight, United Kingdom Contractor
CL
Apr 22, 2026  
Principal mechanical Engineer
The Principal Mechanical Engineer is a key role that leads the mechanical engineering aspects of the development of new radar technologies. Reporting to the Project Engineering Manager, this role must have an expert general mechanical knowledge with experience in the design, build, integration and test of complex mechanical systems. The holder will themselves be a subject matter expert in at least one area of Mechanical Engineering, for example, Computational Fluid Dynamics, Finite Element Analysis, Structures or Thermal Systems. They may also hold Mechanical Design Authority for the Future Radar Products. Experience and knowledge of the design, build, test and use of composite structural materials is essential. Familiarity with the use of relevant modelling and simulation tools for analysis of structure behaviours under static and dynamic load, shock and vibration is essential Experience and knowledge of the design and implementation of mechanical systems Familiarity with the...
IR35 Status:
Unknown Status

CV-Library Portsmouth, Hampshire Contractor
CL
Apr 22, 2026  
Principal mechanical Engineer
The Principal Mechanical Engineer is a key role that leads the mechanical engineering aspects of the development of new radar technologies. Reporting to the Project Engineering Manager, this role must have an expert general mechanical knowledge with experience in the design, build, integration and test of complex mechanical systems. The holder will themselves be a subject matter expert in at least one area of Mechanical Engineering, for example, Computational Fluid Dynamics, Finite Element Analysis, Structures or Thermal Systems. They may also hold Mechanical Design Authority for the Future Radar Products. Experience and knowledge of the design, build, test and use of composite structural materials is essential. Familiarity with the use of relevant modelling and simulation tools for analysis of structure behaviours under static and dynamic load, shock and vibration is essential Experience and knowledge of the design and implementation of mechanical systems Familiarity with the...
IR35 Status:
Unknown Status

CV-Library Chelmsford, Essex Contractor
CL
Apr 22, 2026  
Senior OHL Engineer
Job Purpose: Production of OHL designs from a scope provided by Project Managers, Customers or the Design Lead and will include project costings to customer requirements for time, quality and budget. Must have experience in the production of all designs, calculations, reports & drawings associated with the new build, refurbishment and diversions of overhead line projects from 11kV upto 132kV. These schemes are for OHL and cable diversions portfolio Connections (non-contestable) works, adhering to Power Networks design standards. The Senior OHL designer will liaise with the Project Manager, Electrical, Civil designers and PDC, ensuring compliance to design, CDM and relevant standards for both the regulated network solutions for all customers. The successful applicant shall be capable of satisfying the following general requirements: * Produce detailed OHL design packages compliant to required technical industry standards. Prepare calculations and technical / equipment...
IR35 Status:
Unknown Status

CV-Library Suffolk, UK Contractor
CL
Apr 25, 2026  
Site Engineer
A long term, inside IR35, opportunities exist for a Site Engineer on a major rail project in West Yorkshire. Civil Site Engineers experienced in improving and upgrading of over and underpasses, tunnels, reinforced concrete structures, bridges, embankments, earthworks, drainage etc on rail projects for tier one principal Contractors, on major rail projects, are sought. Regular duties will include Accurate setting out of the works under high pressure situations Interpreting the drawings and ensuring construction is to the specifications. Ensuring Quality as well as H&S standards are achieved. Management of subcontractors Produce records, as-builts and maintain a daily dairy. Ensure WPP and TBs are adhered to. Requirements: HND or Degree in Civil Engineering Solid experience gained working for a tier one or principal contractor on rail projects Competent in setting out and producing as-builts. Proven experience in a similar post Valid PTS is preferred....
IR35 Status:
Inside IR35

CV-Library Huddersfield, UK Contractor
CL
Apr 25, 2026  
Principal Engineer Mechanical
Role: Principal Mechanical Engineer Location: Devonport(2 days in a month onsite) Duration: 12 months Inside IR35 Umbrella About our client: Our client in Devonport is a leading engineering and maritime organisation specialising in the maintenance, repair, and overhaul of naval vessels. The site operates with a skilled workforce across mechanical, electrical, and technical disciplines, delivering high-quality and complex engineering projects. It offers a structured and collaborative working environment with opportunities for hands-on experience and professional development. The purpose of the Principal Engineer - Mechanical post is: To manage the delivery of mechanical engineering work packages to the required scope, quality, schedule and cost. Day-to-day, you'll be supporting the engineering capability of the new systems through the design lifecycle in accordance with the design process: Applying systems engineering approach to develop and validate design requirements...
IR35 Status:
Inside IR35

CV-Library Plymouth, Devon Contractor
CL
Apr 25, 2026  
Sub Agent
A freelance opportunity inside IR35 exists for a Sub Agent, who has progressed through the ranks from Site Engineer to Section Engineer to Sub Agent, on major civil engineering infrastructure projects for a tier one or principal Contractor. Your proven delivery experience on heavy reinforced concrete structures like viaducts/bridges etc and earthworks fill, would be advantageous. Your duties will include - Oversee and guide Section, Site and Assistant Engineers to ensure effective engineering control and the proper documentation of activities. Foster positive relationships with stakeholder and joint venture partners as well as the supply chain. Encourage a cost-conscious mindset by efficiently utilizing company resources. Assist the Agent in managing the cost system, creating schedules, and preparing Quality Files (QF). Collaborate with commercial staff to ensure timely and accurate preparation of records for measurement and payment purposes. Promote the use of Building...
IR35 Status:
Inside IR35

CV-Library West Yorkshire, UK Contractor
CL
Apr 24, 2026  
Senior Product Design Engineer
Job Purpose - To develop innovative mechanical design solutions, to current and future aerospace industry challenges, on existing and next generation smart motor and power generation technologies. To lead and deliver project based engineering work-package activities, by ensuring mature and robust mechanical solutions, designed to meet manufacturing, cost and weight targets. Responsibilities - Primary responsibility is to create and support the definition of robust mechanical design solutions, for R&D / R&T project/s, by ensuring the designs are technically robust, fit for purpose and meet both the business and customer needs. - Responsibility for the oversight and approval of design solutions, delivered by other Product Engineers within designated teams. Where necessary, support other senior, Principal and Senior Principal Engineering teams with design review and approval. - Support and/or ownership of, one or more Engineering Work Packages, for the Mechanical...
IR35 Status:
Unknown Status

CV-Library Pitstone, UK Contractor
CL
Apr 23, 2026  
Temporary Works Coordinator (TWC)
The position: The Temporary Works Coordinator (TWC) must demonstrate a proven track record of successfully delivering temporary works on large-scale civil engineering projects. The ideal candidate will possess extensive knowledge and experience, supported by strong interpersonal, organisational, and teamwork skills, as well as the ability to communicate clearly and effectively. In this role, you will manage a team of Temporary Works Supervisors (TWS) and construction supervisors, reporting to the Area Temporary Works Manager and providing full support as required. The position relates to one of the three principal construction sites within the MWCC S1/S2 project. You will be responsible for ensuring that all Temporary Works are properly designed, constructed, implemented, and dismantled in full compliance with project procedures and safety requirements. A solid working knowledge of BS 5975 is essential, along with an awareness of PAS 8811 and PAS 8812 standards. Key...
IR35 Status:
Unknown Status

CV-Library London, UK Contractor
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