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Contractor 13
principal structural engineer

13 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
Mar 04, 2026  
Principal Structural Engineer
On behalf of our client, we are seeking to recruit a Principal Structural Engineer on an initial 12-month contract. As the Principal Structural Engineer, you will play a key role in delivering high-quality structural analysis across a range of advanced defence systems, supporting design development and ensuring compliance with critical structural requirements. Role: Principal Structural Engineer Pay: £50 per hour Via Umbrella Location: Stevenage Contract: Monday- Friday, 37 Hours per week, 12 Months Contract IR35 Status: Inside Security Clearance: SC Required before starting Responsibilities Perform and lead structural analysis using hand calculations and Finite Element methods. Provide technical expertise across static, dynamic, fatigue, and crash analysis. Develop and optimise FE models to support and improve design solutions. Deliver rapid structural assessments to support efficient design progression. Communicate analysis results clearly to influence design and...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 04, 2026  
Principal Structural Engineer
The Mechanical Analysis Group are looking for a Principal Structural Engineer to join its team in Stevenage. The group consists of over 30 engineers working across a wide spectrum of cutting-edge military systems. Working for an internationally recognised company, you will play a critical role in ensuring that products deliver the necessary performance against key structural. What are we looking for? * Degree qualified in a STEM subject. * Proven ability to carry out structural analysis through the application of hand calculations and Finite Element methods (e.g. Hypermesh, Optistruct, etc.) with experience in one or more of the following areas: * Static, dynamic, fatigue analysis; * Metallic/composite analysis; * Finite Element optimisation & Design of Experiments; * Assessment of mechanisms and multi body dynamics; * Crash analysis. * Ability to make quick/simple assessments to progress design activities in an efficient manner. * Self-motivated individuals, who are great...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 04, 2026  
Principal Structural Engineer 3167-1
Principal Structural Engineer Stevange, Hertfordshire Our client, a leading entity within the Defence & Security sector, is seeking a Principal Structural Engineer to join their esteemed Mechanical Analysis Group in Stevenage. This contract role promises to place you at the cutting edge of military systems engineering, working within a team of over fifty engineers. Key Responsibilities: Ensuring product performance against key structural requirements Carrying out structural analysis using hand calculations and Finite Element (FE) methods Working with the Altair FE toolset, and other FE codes such as NASTRAN or ANSYS Engaging in static, dynamic, and fatigue analysis Assessing both metallic and composite structures Optimising Finite Element models and conducting Design of Experiments Evaluating mechanisms and multi-body dynamics Performing crash analysis Job Requirements: Degree qualified in a STEM subject Proven structural analysis skills with experience in Altair, NASTRAN,...
IR35 Status:
Unknown Status

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 04, 2026  
Principal Structural Engineer
£50 UMB Overview of department: The Mechanical Analysis Group are looking for a Principal Structural Engineer to join its team in Stevenage. The group consists of over fifty engineers working across a wide spectrum of cutting-edge military systems. Responsibilities: Working for an internationally recognised company, you will play a critical role in ensuring that the organisation’s products deliver the necessary performance against key structural requirements. Skillset/experience required: • Degree qualified in a STEM subject. • Proven ability to carry out structural analysis through the application of hand calculations and Finite Element (FE) methods. Proven experience in the Altair FE toolset is preferred, although experience in alternative FE codes such as NASTRAN, ANSYS etc. will be considered. • Experience in one or more of the following areas: • Static, dynamic, fatigue analysis • Metallic/composite analysis • Finite Element optimisation &...
IR35 Status:
Unknown Status

CV-Library Stevenage, UK Contractor
CL
Mar 04, 2026  
Principal Structural Engineer
Job Title Principal Structural Engineer Stevenage 4 days onsite, 1 WFH Contract Details 12 month contract £50 per hour Inside IR35 Overview A leading engineering organisation operating in the defence and advanced systems sector is looking to engage a Principal Structural Engineer to support complex mechanical analysis activities. You will join an established structural analysis function working on high integrity, safety critical products. This role suits someone who is technically strong, decisive, and comfortable owning complex analysis tasks from concept through to delivery. Key Responsibilities You will be responsible for delivering high quality structural analysis to ensure products meet demanding performance and regulatory requirements. The role involves supporting design teams with both detailed and rapid assessments to enable efficient design progression. Required Skills and Experience Degree qualified in a STEM subject. Strong background in structural analysis...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 05, 2026  
Principal Structural Mechanical Engineer
Principal Structural Mechanical Engineer JOB LOCATION: Stevenage SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months (Possible Extension) WORK PATTERN: Min 4 Days a Week on Site; Possibly 1 Remote - Compressed Week Potentially Available. PAY RATE: £ 50 Per Hour Umbrella Inside IR35 Essential QUALIFICATIONS Ideally degree qualified; STEM subjects. TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Ideally Def/Aero background. Open to others if skillset matches. Essential Skillset & Tools Alter FE toolset; experience in alternative FE codes would be considered (). As Seen on JD. Overview: The Mechanical Analysis Group are looking for a Principal Structural Engineer to join its team in Stevenage. The group consists of over fifty engineers working across a wide spectrum of cutting-edge military systems. Responsibilities: Working for an internationally recognised company, you will play a critical role in ensuring that products deliver...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 08, 2026  
Civils Design Consultant
NES Fircroft continue to support their long term HV Cabling client in the UK. We are partnered to find a Lead Contractor Design Approval Engineer. Responsible for reviews and accepts/rejects design deliverables coming from designers, subcontractors, and suppliers before the work is built. In that environment, “Lead Contractor Design Approval Engineer” is best understood as the Principal Contractor’s Technical Assurance / Design Acceptance lead: the person who runs the contractor-side “acceptance for construction (AFC/IFC)” gates and makes sure what arrives on site is buildable, coordinated, safe-to-construct, and compliant with the Employer’s/Network standards. Core purpose                                       To ensure anything the contractor is about to build has a controlled, coordinated, compliant design package and that design changes don’t quietly create safety, programme, cost, or interface failures. Typical responsibilities (what “design approval” means in...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 05, 2026  
Site Delivery Lead
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...
IR35 Status:
Inside IR35

CV-Library Leiston, Suffolk Contractor
CL
Mar 04, 2026  
Principal Mechanical Design Engineer
Principal Mechanical Design Engineer JOB LOCATION: STEVENAGE OR BRISTOL SECURITY: SC - Potential BPSS start (UKEO) DURATION: 6+ Months (Extension Possible if Meeting Expectations) TYPE: Contract WORK PATTERN: 4 days a week on site; 1 remote (flexible over start/finish time). PAY RATE: £ 50 /hr (Umbrella Inside IR35) Essential QUALIFICATIONS Beneficial- HND or HNC in Mech Engineering TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered * Preferable for Def/Aero; if hitting the skills on JD, open to others; automotive, oil & gas etc. Essential Skillset & Tools * Experience using Creo 3D design tool Essential- Knowledge of the following: * Manufacturing processes * Tolerance studies * Mass property calculations * Material selection * FMEA * Design for Manufacture/Assembly * Structural design * Product Lifecycles * Industrial validation * An ability to work as part of a multifunctional...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 04, 2026  
Senior OHL Design engineer
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 implementation,...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 07, 2026  
Senior or Principal Mechanical Engineer
Contract Opportunity: Senior / Principal Mechanical Engineer Sellafield MSSS-OBLM Projects £51-£61 per hour (Inside IR35) Hybrid - 3 days per week in Warrington Sector: Nuclear | MSSS-OBLM Programme Are you an experienced Senior or Principal Mechanical Engineer looking to play a key role on one of Sellafield's most critical programmes? This opportunity sits within the MSSS-OBLM (Multi-Storey Seismic Stores - On-Balance Legacy Materials) projects, delivering essential mechanical engineering support to safety-critical, legacy nuclear infrastructure. You'll provide technical leadership and delivery assurance across task-based mechanical work packages, supporting the safe progression of complex designs within a highly regulated environment. The role offers a hybrid working model, balancing collaboration in Warrington with remote working flexibility. Key Responsibilities Deliver and manage mechanical engineering tasks across MSSS-OBLM project scopes Develop, review and approve...
IR35 Status:
Inside IR35

CV-Library Cumbria, UK Contractor
CL
Mar 05, 2026  
Principal Firmware Engineer
Principal Firmware Engineer Luton Paying up to £80p/h (Umbrella) Responsibilities: Artificial Intelligence, including machine learning and genetic algorithms Auto-generated code using model-driven engineering using MATLAB and Simulink tools Design tools such as Xilinx, TCL, Verilog, System Verilog and UVM Derivation of detailed Firmware requirements and architecture from system requirements A structured approach to firmware design (RTCA DO-254 or similar) Experience required: FPGA architectures such as Xilinx 7. Xilinx UltraScale; Intel (Altera) or Microsemi (Actel). Fast interfaces such as PCIe, Ethernet, and JESD is also required. Cryptography and anti-tamper techniques Electronics test methods and equipment HNC/HND or Undergraduate Degree (Electronic Engineering, Computer Science, AI, Games Programming, Physics, or Applied Physics), or you may just have lots of skills and experience gained through your hard work. Due to the nature of our work, any candidate must have 5...
IR35 Status:
Outside IR35

CV-Library Luton, Bedfordshire Contractor
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