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Contractor systems engineer

523 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 19, 2026  
Senior Systems Engineer
The RLE INTERNATIONAL Group is one of the world's leading providers in the fields of vehicle development, technology and consulting. On the basis of more than 40 years of development & consulting, we provide innovative and effective solutions for our UK customers in the area of Automotive Engineering. RLE INTERNATIONAL is represented at locations close to its customers in Europe, Asia and USA. Job Title: Senior Systems Engineer – Energy Storage Systems Rate: Negotiable (in line with experience) Location: Oxford/Banbury – 3 months (potential to extend) Job Description: We are seeking a Systems Engineer to support the development and integration of an energy storage program utilizing electric motors, power inverters, and battery systems. The Systems Engineer will be responsible for defining system requirements, ensuring subsystem integration, managing technical risks, and supporting the full system lifecycle from concept through deployment and operation. Key...
IR35 Status:
Unknown Status

CV-Library Oxford, Oxfordshire Contractor
CL
Jun 18, 2026  
Combat Systems Engineer
Our client, a leading organisation in the Defence & Security sector, is currently seeking a talented and experienced Combat Systems Engineer to join their team on a contract basis. This is a unique opportunity to work on mission-critical projects that help protect and secure national interests. Key Responsibilities: Designing, developing, and implementing combat systems within various defence projects Conducting in-depth analyses and assessments of system performance and capabilities Collaborating with multidisciplinary teams to deliver integrated system solutions Providing technical guidance and expertise to support ongoing project developments Ensuring compliance with industry standards and regulatory requirements Preparing detailed technical documentation and reports Participating in testing, evaluation, and validation of combat systems Maintaining up-to-date knowledge of emerging technologies and advancements in the field Job Requirements: Significant experience in the...
IR35 Status:
Unknown Status

CV-Library Bristol, UK 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 17, 2026  
Control Systems Engineer
Controls Engineer UK Wide £48-55 an hour Outside IR35 Essential Skillset: Experienced in SCADA, OT controls and utility-scale infrastructure projects including BESS, substations and renewable energy systems. Strong knowledge of PLCs, RTUs, industrial networking and communication protocols including Modbus, DNP3 and IEC 61850. Able to read and interpret electrical schematics, control drawings, network architectures and system layouts to support commissioning and integration activities. Skilled in fault finding, testing, commissioning support and QA documentation within HV and critical infrastructure environments
IR35 Status:
Outside IR35

CV-Library United Kingdom 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 17, 2026  
Fuel Systems Engineer
Fuel Systems Engineer Certain Advantage are hiring for a Fuel Systems Engineer based in Filton on a hybrid basis. The role will entail engineering activities associated with continued product development. The successful individual will need to have a background in aerospace engineering with a good knowledge of the associated regulations, system design principles and verification & validation. Your responsibilities: Equipment qualification – Support the review of new Equipment Design Evolution Sheets from supplier, Specification updates and qualification of equipment due to scope creep of requirements in service Production Support – Support queries from the various production lines on items such as test failures and improvement projects Development modifications support – Work on providing inputs to modifications required for the development of the system including engineer variant changes, performance changes and changes related to equipment updates Problem...
IR35 Status:
Unknown Status

CV-Library Filton, 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 19, 2026  
Systems Test Engineer
OLG Recruitment are currently looking for a Systems Test Engineer for our client located in Stallingborough. This is a contract opportunity up to October. As a Systems Test Engineer, you'll be embedded in the test engineering team, working alongside firmware, hardware, and compliance engineers. Your day-to-day work spans from functional bring-up and interface characterisation through to scripting automated test suites and expanding the HIL (Hardware-in-the-Loop) test system to accommodate new product variants. Summary You are an experienced test or embedded systems engineer comfortable working across hardware bring-up, software/firmware interface testing, and test automation. You're at home with a logic analyser in one hand and a Python script in the other : equally able to characterise a new PCB's wireless interface and write the automated test that will verify it on every future build. You'll work alongside the myenergi test team to validate new product variants from...
IR35 Status:
Unknown Status

CV-Library Stallingborough, Grimsby, 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 14, 2026  
Systems Design Engineer
Systems Design Engineer 12 month contract Based in Stevenage (Bristol or Bolton possible) Offering up to £80ph Inside IR35 Do you have experience generating functional and physical architecture? Do you have experience with tools such as DOORS, Rhapsody, or Capella? Do you have experience with MATLAB or Simulink? If your answer to these is yes, then this could be the role for you! As the Systems Design 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: Developing system architecture and design utilising MBSE Deriving and managing requirements Communicating with various stakeholders, the external customer, and suppliers internal to the business Developing Physical and Functional Architecture using SysML techniques...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jun 13, 2026  
Systems Integration and Test Engineer
Solutions Developer (Systems Integration & Test) £72.54 per hour (Inside IR35) 12 months Bristol - full time on site The Solution Developers will provide the core integration resource within a lab-based development environment, bringing with them a technical background in systems integration, communication systems engineering and networking. Typical duties include : * Integrating hardware and software components into tactical military communication systems. * Support the Solution Architect in creating the System Architecture and lower-level system and sub-system designs * Develop and integrate communication systems against designs. * Perform unit testing and debugging in support of verification and validation. * Support the Solution Tester in defining appropriate Tests. * Collaborating with wider project and engineering stakeholders to realise requirements into solutions. Knowledge: ▪ Windows/Linux based management systems responsible for the provisioning of...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Jun 19, 2026  
Mechanical Systems Installation Design Engineer - 3062
Electrical Design Engineer Filton (hybrid) £50 per hour  Initially until May 2027  1-stage interview – virtual or F2F Flexible working hours Certain Advantage is collaborating with a prominent aerospace company in search of an experienced Electrical Design Engineer. In this role, you will join the Test Centre and will contribute to the development of architectures and specifications for data acquisition and control systems for a new test facility and several new test benches focused on Hydrogen testing. What you will be doing: Develop Architecture and design solutions for data acquisition and control systems Develop Electrical Component and electrical schematics Specify Instrumentation for a range of different measurements (Pressure, Flow, Voltage, Current, etc.) Produce requirement and specification documentation for data acquisition and control systems  Your background: Electrical Design Tools (AutoCAD, AutoCAD Electrical, KiCad) Understanding of Electrical design...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Jun 17, 2026  
Systems Design Engineer
Systems Design Engineer Malmesbury £40,000 - £45,000 per annum Our client based in Malmesbury is looking for a talented Systems Design Engineer to join their growing engineering team. Systems Design Engineer Roles and Responsibilities: * Produce initial layout designs integrating machinery and conveyor systems into complete process lines * Develop detailed 3D models of mechanical process lines and structures using CAD software * Create accurate 2D drawings including plans, elevations, and civil layouts * Prepare specifications for civil works and steel frame structures, including dimensions and load calculations * Review and verify drawings to ensure accuracy, completeness, and compliance with project requirements * Manage and track design revisions using version control processes * Generate 3D rendered models and preliminary layouts within building designs * Produce process flow diagrams * Maintain and manage design data using Autodesk Vault * Track design...
IR35 Status:
Unknown Status

CV-Library Malmesbury, Wiltshire Contractor
CL
Jun 14, 2026  
AI Engineer - LLM & Agentic Systems
AI Engineer - LLM & Agentic Systems * London - Hybrid. * Circa £500 – £675 per day (and negotiable DOE) * Contract (Outside IR35) * Mid-level, Senior & Lead. * Agentic AI / Machine Learning. Company: Our client is a globally established B2B information and professional services business, operating across multiple high-value industry sectors. They have established data science and machine learning engineering teams already delivering in production, and are now expanding their AI capability significantly across the global organisation. This is a role for people who ship. If you've built LLM-powered systems and agentic workflows that are live in production - not demos, not prototypes - and you want to do that at genuine scale, this is worth applying for. What you'll be working on as an AI Engineer - LLM & Agentic Systems: * Designing and building AI agents and agentic workflows - combining LLMs, RAG, reasoning, memory and tool orchestration to solve...
IR35 Status:
Outside IR35

CV-Library SW1V, Victoria, Greater London Contractor
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