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Inside IR35 Contractor systems engineer

99 systems engineer jobs found

CL
Jun 19, 2026  
Systems Engineer
Systems Engineer 12 months £72.54 (Inside IR35) Christchurch (Dorset) 3-4 days on site ***CANDIDATES MUST BE ELIGIBLE FOR SC CLEARANCE*** "This role does not offer visa sponsorship. Applicants must already have the right to work in the UK. Your responsibilities will include: Providing Systems Engineering support to business development activities, including study/experimentation activities, system de-risking activities Development and implementation of technical solutions that meet the customer requirements Provision of realistic estimates for specified activities to the development lead Accurately report on progress Complete work to a high standard and to scope, quality and budget Support System Integration Activities Typical duties include : Providing Systems Engineering support to business development activities, including study/experimentation activities, system de-risking activities Development and implementation of technical solutions that meet the customer...
IR35 Status:
Inside IR35

CV-Library Christchurch, Dorset Contractor
CL
Jun 18, 2026  
Systems Engineer
Systems Engineer - 12 month contract - Christchurch, Dorset - £72.54 ph UMB or £53.73 ph PAYE (Inside IR35) The Umbrella rate quoted above is the Gross Umbrella rate (i.e. the rate we pay to the Umbrella Company inclusive of ALL employment costs). Please note, the rate paid by the Umbrella will be less, as will a Limited Deemed rate or Agency PAYE rate. Please get in touch to discuss the rates via these different payment vehicles. The Role Not limited to… Providing Systems Engineering support to business development activities, including study/experimentation activities, system de-risking activities Development and implementation of technical solutions that meet the customer requirements Provision of realistic estimates for specified activities to the development lead Accurately report on progress Complete work to a high standard and to scope, quality and budget Support System Integration Activities What are BAE Systems looking for from you? A strong Systems engineering...
IR35 Status:
Inside IR35

CV-Library Christchurch, Dorset Contractor
CL
Jun 07, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 07, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Bolton, UK Contractor
CL
Jun 07, 2026  
Mechanical Systems Engineer / Architect
World Class Defence Organisation is currently looking to recruit a number of Mechanical Systems Engineer / Architects on an initial 6 month contract.  The department can have the role based from either the Stevenage, Bristol or Bolton sites.   This role would suit a candidate who comes from a strong background of working as a Mechanical Design Engineer, Mechanical Systems Engineer, Mechanical Architect or has experience of Mechanical Systems Architecture.  A defence / aerospace background is ideal but not essential. DOORS experience would be great.    Rate: £60.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage, Bolton or Bristol depending on your preference Hybrid / Remote working: 3-4 days onsite needed. Will be 5 days onsite to begin with due to training needs Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella)...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
May 07, 2026  
Systems Engineer Manager
World Class Defence Organisation is currently looking to recruit a Head of FCAS Systems Design Co-Ordination ( Systems Engineer Manager ) subcontractor on an initial 6 month contract.    This position would suit a candite from the Defence / Aerospace industries and from a Systems Engineering Management background.   Rate: £80.00 per hour Location: Bristol, Stevenage or Bolton, depending on your preference.  Hybrid / Remote working: Hybrid, 3 days per week onsite (the department can offer a compressed 4 day week of Monday to Thursday) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview Head of FCAS Systems Design Co-Ordination Job Description:   FCAS is one of the largest, most exciting and challenging programmes within Defence – to design and deliver a Future...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
May 07, 2026  
Systems Engineer Manager
World Class Defence Organisation is currently looking to recruit a Head of FCAS Systems Design Co-Ordination ( Systems Engineer Manager ) subcontractor on an initial 6 month contract.    This position would suit a candite from the Defence / Aerospace industries and from a Systems Engineering Management background.   Rate: £80.00 per hour Location: Bristol, Stevenage or Bolton, depending on your preference.  Hybrid / Remote working: Hybrid, 3 days per week onsite (the department can offer a compressed 4 day week of Monday to Thursday) Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 6 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview Head of FCAS Systems Design Co-Ordination Job Description:   FCAS is one of the largest, most exciting and challenging programmes within Defence – to design and deliver a Future...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 14, 2026  
Systems Design Engineer
World Class Defence Organisation is currently looking to recruit 2x Systems Design Engineer subcontractors on an initial 12 month contract.   Rate: £80.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: The role can be based either from the companies Stevenage, Bolton or Bristol sites Hybrid / Remote working: circa 4 days onsite (more remote working may be 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   Systems Design Engineer Job Description: Seekers department develop RF Seekers for use in Missile products.  Responsibilities: Working as part of team developing system architecture and design utilising MBSE. Deriving and managing requirements Communicating with various stakeholders with the Seeker team and the external customer and suppliers Developing Physical...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jun 14, 2026  
Systems Design Engineer
World Class Defence Organisation is currently looking to recruit 2x Systems Design Engineer subcontractors on an initial 12 month contract.   Rate: £80.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: The role can be based either from the companies Stevenage, Bolton or Bristol sites Hybrid / Remote working: circa 4 days onsite (more remote working may be 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   Systems Design Engineer Job Description: Seekers department develop RF Seekers for use in Missile products.  Responsibilities: Working as part of team developing system architecture and design utilising MBSE. Deriving and managing requirements Communicating with various stakeholders with the Seeker team and the external customer and suppliers Developing Physical...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 14, 2026  
Systems Design Engineer
World Class Defence Organisation is currently looking to recruit 2x Systems Design Engineer subcontractors on an initial 12 month contract.   Rate: £80.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: The role can be based either from the companies Stevenage, Bolton or Bristol sites Hybrid / Remote working: circa 4 days onsite (more remote working may be 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   Systems Design Engineer Job Description: Seekers department develop RF Seekers for use in Missile products.  Responsibilities: Working as part of team developing system architecture and design utilising MBSE. Deriving and managing requirements Communicating with various stakeholders with the Seeker team and the external customer and suppliers Developing Physical...
IR35 Status:
Inside IR35

CV-Library Bolton, UK Contractor
CL
Jun 20, 2026  
Lead Engineer - Cockpit Interior Systems
Order Ref: (phone number removed) Position Title: Off-Cycle Lead Engineer / Lead Engineer - Cockpit Interior Systems Duration: Contract - 10 Months Location: Gaydon OEM Rate: £27.21 per hour (Inside IR35) Duties: The purpose of this role is to drive the off-cycle engineering activities associated with Cockpit a-surface parts including trim, finisher and veneers. Off cycle teams are not typically aligned to vehicle programme timing, they are given the time and remit to drive short, medium and long term activities dedicated to growing the "body of knowledge" for Trim and a-surface Cockpit parts. This typically includes authoring and updating Bills of Design and DFMEA's, defining and progressing innovation and technology projects, writing commodity strategies and supporting Programme teams with in depth knowledge of their trim and a-surface parts. This may include support with resolving quality issues as well as some level of part releasing. Off-Cycle Lead Engineers will...
IR35 Status:
Inside IR35

CV-Library Warwick, Warwickshire Contractor
CL
Apr 17, 2026  
Systems Performance Modelling Engineer
World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract.  Your base site can be either Stevenage or Bristol, depending on your preference. The role can be worked on a 4 day week basis (Monday to Thursday) but due to the nature of the work, the position will need to be based onsite.     This role would be suitable for a Simulation and Modelling Engineer (Matlab / Simulink) ideally from the defence or aerospace industry.   Rate: £80.00 per hour Location: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: The role will based onsite.  A compressed 4-Day week of Monday to Thursday is possible Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Apr 17, 2026  
Systems Performance Modelling Engineer
World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract.  Your base site can be either Stevenage or Bristol, depending on your preference. The role can be worked on a 4 day week basis (Monday to Thursday) but due to the nature of the work, the position will need to be based onsite.     This role would be suitable for a Simulation and Modelling Engineer (Matlab / Simulink) ideally from the defence or aerospace industry.   Rate: £80.00 per hour Location: Your base site can be either Stevenage or Bristol, depending on your preference Hybrid / Remote working: The role will based onsite.  A compressed 4-Day week of Monday to Thursday is possible Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Apr 26, 2026  
Integration and System Validation Engineer
World Class Defence Organisation is currently looking to recruit 2x Integration and System Validation Engineer subcontractors on an initial 12 month contract.     The role would suit a candidate with the below experience: Network systems and protocols, experience of switch and router configuration and management Fault finding and route cause analysis at subsystem integration level Doors/ETM would be desirable Rate: £70.00 per hour Location: Bristol Hybrid / Remote working: 3-5 days on site; rest remote; lab-based position Contract: 37 Hours per week Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’ Duration: 12 Months (initially and then ongoing and long-term thereafter) IR35 status: Inside IR35 (Umbrella)                                                                                                                                           Interview Process: One stage Video Interview Integration and System Validation Engineer Job...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 19, 2026  
AWS DevOps Engineer
AWS DevOps Engineer +6 months + +Inside IR35 +£575 - £610 a day +SC cleared role - sole British nationals only due to nature of the project +Fully remote working CBSbutler are supporting a large organisation delivering a critical UK public sector programme and are looking for an experienced DevOps Engineer / DevOps SME to strengthen platform delivery, automation and secure release capability. What you'll be doing Designing and improving CI/CD pipelines to enable reliable, repeatable deployments Implementing and maintaining Infrastructure as Code (IaC) for automated environment provisioning Supporting containerised platforms and orchestration to improve scalability and resilience Embedding security and compliance controls into engineering workflows (DevSecOps) Driving observability improvements across monitoring, logging and alerting Advising engineering teams on DevOps best practice and helping remove delivery bottlenecks Essential experience Typically 5-10+ years in...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jun 18, 2026  
HV Power Electronics Engineer
Job Title: Senior HV Power Electronics Engineer Contract Duration: 12 Months Location: London Rate: £70–75 p/h DOE (Inside IR35) About the Role We are supporting an advanced engineering programme requiring a Senior HV Power Electronics Engineer with deep expertise in high-voltage system design, insulation coordination, and HV product validation. Key Responsibilities * Lead high-voltage creepage and clearance assessments across HV systems and subsystems. * Support the design and validation of high-voltage power conversion systems and associated power electronics. * Define and review insulation coordination strategies for complex electronic products. * Conduct HV risk analysis, DFMEA activities, and system-level design reviews. * Develop validation methodologies including HV withstand and insulation resistance testing. * Work closely with electrical, mechanical, safety, and systems engineering teams to resolve HV integration challenges. Required Experience *...
IR35 Status:
Inside IR35

CV-Library W1, Marylebone High Street, Greater London Contractor
CL
Jun 18, 2026  
Project Engineer - Software Integration
Location: Bristol (4-5 days per week onsite) Duration: 12 month initial contract Rate: £50ph UMB (Inside IR35) Candidates must hold or be eligible to obtain UK SC clearance. Role details: Our client, a key player in the defence and security sector, is currently looking for a Project Engineer to join their team in Bristol on a contract basis. This role supports the delivery of integration tools to customers, acting as the liaison between the Systems Engineering section and Manufacturing. The position demands a proactive approach to ensure timely delivery of critical path activities. This position is for 12 months with the possibility of extension. Key Responsibilities: Supporting the delivery of integration tools to customers by liaising between Systems Engineering and Manufacturing Working with Project Leads and development teams to ensure timely delivery of critical path activities Collaborating within an agile development team of mixed discipline engineers to deliver...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 07, 2026  
Human Factors Engineer
World Class Defence Organisation based in Bristol (the role will be split between working from home and onsite) is currently looking to recruit a Human Factors Engineer subcontractor on an initial 6 month contract.   Rate: £90.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Bristol Hybrid / Remote working: circa 3 days onsite Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Human Factors Engineer Job Description: The military operating environment is becoming more complex and new technological capabilities are required to ensure operational advantage. We believe that integration of Human Factors is critical to the development of safe, usable and effective weapon systems. The Human Factors department is responsible for ensuring that user capability is fully considered in...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 20, 2026  
System Integration Lead Engineer
System Integration Lead Engineer - (phone number removed) - £35.93/hr (Umbrella Rate - Inside IR35) Step into a dynamic and rewarding career with an opportunity to become a **System Integration Lead Engineer**. This role offers the chance to work on cutting-edge projects within a forward-thinking organisation that values innovation, collaboration, and excellence. If you're passionate about engineering and want to make a tangible impact, this position could be the perfect fit for you. With competitive remuneration and the chance to work on exciting vehicle programmes, this is your chance to elevate your career in the automotive industry. What You Will Do: - Manage the integration of features and systems on test assets, ensuring seamless functionality. - Support cross-functional teams to deliver integrated software to vehicle programmes. - Lead and participate in problem-solving initiatives to address complex integration challenges. - Coordinate with multiple business functions...
IR35 Status:
Inside IR35

CV-Library Gaydon, Warwick CV35, UK Contractor
CL
Jun 20, 2026  
System Test & Validation Engineer
Expleo is seeking a driven and passionate System Test & Validation Engineer to support our prestigious automotive customer based in Warwickshire on a contract basis(Inside IR35). This is an exciting opportunity to work at the heart of a connected car platform that powers next-generation digital experiences across luxury vehicles. You will play a pivotal role in validating system features, ensuring quality, robustness, and a seamless end-user experience from concept through to delivery. If you are passionate about the automotive industry, thrive in a fast-paced engineering environment, and enjoy taking ownership of quality and validation activities, this could be the ideal contract for you. The Role As a System Test & Validation Engineer, you will take ownership of validating system features across the connected car ecosystem, ensuring they are delivered to the highest standards of quality and performance. You will be responsible for defining validation strategies,...
IR35 Status:
Inside IR35

CV-Library Warwickshire, UK Contractor
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