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Engineering Inside IR35 principal engineer

6 principal engineer jobs found

CL
Dec 27, 2025  
Principal Thermal Engineer
Principal Thermal Engineer JOB LOCATION: Stevenage SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months Minimum WORK PATTERN: 3 days min a week on site; depending on project workload it could be full time on site (Please assume full time onsite when talking to candidates). Overtime: Yes (Project dependant) PAY RATE: £ 50 Per Hour Umbrella Inside IR35 TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Defence would be beneficial; open to aero, electronics. As long as thermal skillset is apparent. ALTERNATIVE JOB TITLES IN OTHER COMPANIES OR INDUSTRIES (“Thermal Engineer” OR “Aerothermal Engineer” OR “Heat transfer Engineer”) Overview: The Mechanical Analysis Group are looking for a Principal Thermal 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Dec 24, 2025  
Principal Thermal Engineer
Principal Thermal Engineer 12 month contract Based in Stevenage Offering £50ph Inside IR35 Do you have experience carrying out thermal analysis of electronics? Do you have experience with MATLAB/Simulink? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Principal Thermal Engineer, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry. You will be involved in: Take ownership of delivering packages of thermal analysis work Provide mechanical analysis support to develop designs and deliver thermal performance evidence Deliver analysis evidence in clear reports with firm conclusion statements Participate in team meetings and design reviews Manage workload against time schedules and...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Dec 24, 2025  
Principal Thermal Engineer
Job Title: Principal Thermal Engineer Location: Stevenage Pay Rate: Up to £50p/h Inside IR35 Contract Length: 12 Months - Likely To Extend Key Skills: Thermal Analysis, Finite Element Analysis (FEA), MATLAB / SIMULINK, Thermal Design Authority, Defence, Engineering Join Our Team as a Principal Thermal Engineer and Drive Thermal Design to New Heights! Are you a meticulous Principal Thermal Engineer with a passion for precision and excellence? Are you ready to play a pivotal role in ensuring top-tier standards in a well-established engineering organization? Look no further! We invite you to join our team in Stevenage and be a key driver of engineering excellence. About Us: As a distinguished leader in the engineering industry, we are dedicated to delivering innovative solutions and pioneering projects. Our commitment to excellence has earned us a strong reputation, and we're looking for a talented Thermal Engineer to contribute to our continued success. The Role: So, what...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Dec 24, 2025  
Principal Thermal Engineer
Our client, an Aerospace and Defence supplier is looking for a Principal Thermal Engineer to join them on a contract basis at their site in Stevenage. Due to the nature of the role, applicants must hold the British nationality and be willing to obtain full SC Clearance ahead of starting. 12 month initial contract. Fully onsite in Stevenage. £50 p/h Umbrella, inside IR35.Responsibilities: Take ownership for delivering packages of thermal analysis work. Provide mechanical analysis support to develop designs and deliver thermal performance evidence. Deliver analysis evidence in clear reports with firm conclusion statements. Participate in team meetings and design reviews. Manage workload against time schedules and report progress regularly to stakeholders. Responsible for dealing and collaborating with project stakeholders (internal & external).Skillset/experience required: Degree qualified in a STEM subject. Proven ability to carry out thermal analysis through the application...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Dec 24, 2025  
Principal Thermal Engineer
World Class Defence Organisation based in Stevenage, Hertfordshire is currently looking to recruit a Principal Thermal Engineer Subcontractor on an initial 12 month contract.   Hourly Rate: £50.00  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 likely be onsite 3 days per week. Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage onsite interview   Principal Thermal Engineer Job Description: The Mechanical Analysis Group are looking for a Principal Thermal 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...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Dec 24, 2025  
Site Agent Concrete
An excellent opportunity, inside IR35, for a traditional Site Agent that can demonstrate the ability to effectively deliver major heavy civil structures, for a tier one principal Contractor. Previous experience as a Site Agent that has progressed through the Site Engineering route is sought.  Experience managing a nominated subcontractor constructing reinforced concrete bridges, viaducts retaining walls etc would be advantageous. Duties include – Drive the delivery to ensure the delivery dates are met. Manage the delivery team including subcontractors Report on the costs and progress Ensuring safety and quality is adhered to Maintain good working relationships with stakeholders Requirements for this post include – Must have progressed from a Site Engineer to Agent for a tier one or principal Contractor Must have similar experience for a UK contractor on a JV type project A proven record of taking projects from beginning to hand over. Excellent staff management...
IR35 Status:
Inside IR35

CV-Library West Yorkshire, UK Contractor
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