32 senior systems engineer jobs found

2 Senior Systems Engineers Inside IR35 £81.05 per hour 6 months initial term This is a senior technical role relating to the Electronic aspects of hardware design for systems engineering. A highly experienced professional engineer with a depth and breadth of knowledge in Electronics Engineering who speaks and acts authoritatively on matters pertaining to their discipline, leading and applying the principles of Electronics Engineering across the entire engineering development lifecycle from requirement definition to system integration and customer acceptance into system support and disposal. Employs a depth and breadth of expertise relating to Electronics Systems Engineering to the most complex engineering problems, challenges, and issues associated with the domain. Designs, develops, promotes and shares discipline knowledge and capability for implementation across the business and programmes, providing authoritative guidance to others relating to area of expertise. Acts as...

2 Senior Systems Engineers Inside IR35 £81.05 per hour 6 months initial term This is a senior technical role relating to the Electronic aspects of hardware design for systems engineering. A highly experienced professional engineer with a depth and breadth of knowledge in Electronics Engineering who speaks and acts authoritatively on matters pertaining to their discipline, leading and applying the principles of Electronics Engineering across the entire engineering development lifecycle from requirement definition to system integration and customer acceptance into system support and disposal. Employs a depth and breadth of expertise relating to Electronics Systems Engineering to the most complex engineering problems, challenges, and issues associated with the domain. Designs, develops, promotes and shares discipline knowledge and capability for implementation across the business and programmes, providing authoritative guidance to others relating to area of expertise. Acts as...

Senior Infrastructure Engineer £450 Per Day, Inside IR35 6-Month Contract Didcot, Oxfordshire Your new company We're supporting a nationally significant scientific research organisation recognised for delivering some of the most advanced and high-impact projects in the UK. Their digital platforms underpin cutting-edge experiments, secure collaboration and large scale data processing, and they rely on a modern, resilient infrastructure estate to keep these environments running safely and efficiently. As part of their ongoing investment in core services, they are seeking an experienced Senior Infrastructure Engineer to maintain, support and enhance their Microsoft 365, server, storage and authentication systems. This is a place where your technical expertise will directly contribute to work used across the UK science and innovation landscape. Your new role You'll take responsibility for the hands-on support and maintenance of both on-premise and cloud-based infrastructure....

Mechanical Design Engineer - Contract (12 Months) | Bedfordshire | Inside IR35 Looking to take on complex engineering challenges that genuinely push your technical capability? We're seeking experienced Mechanical Design Engineers to join a high integrity defence engineering programme focused on advanced platform integration and mission-critical systems. This is an opportunity to work on cutting-edge mechanical sub-systems, complex mechanisms, and high reliability components designed for demanding military environments. Location Ampthill, Bedfordshire On-site presence required Mondays and Tuesdays from September 2025 Contract Details Duration: 12 months Hours: 37.5 per week Schedule: 4-day week (Mon-Thurs) with flexible working Rate: Competitive per hour (inside IR35, inclusive of employer deductions) Clearance: BPSS to start; SC required later Eligibility: Sole UK nationals only (due to programme requirements) Role Overview As a Mechanical Design Engineer, you'll be...

Senior Product Engineer Belcan seeks an experienced Senior Product Engineer for a 12-month Inside IR35 contract in Pitstone. The role involves leading engineering work packages for the development, validation, and industrialisation of smart motor and power generation technologies. Key Responsibilities Lead and mentor multidisciplinary engineering teams to deliver robust, manufacturable solutions aligned with cost and weight targets. Oversee and approve design solutions; support design reviews per client governance and product introduction processes. Produce high-quality technical documentation, including CAD models, drawings, BOMs, and assurance reports. Drive risk management and continuous improvement through design investigations, root cause analysis, and lessons learned. Author, review, and approve technical documentation for engineering and through-life support. Provide training, mentoring, and leadership to engineering personnel. Deliver fit-for-purpose designs with a...

Senior CE&I Engineer - Sellafield Projects Contract | £51-£56/hour (Inside IR35) Warrington | Hybrid - 3 days on site / 2 days remote Are you a Senior Control, Electrical & Instrumentation Engineer looking to apply your expertise within one of the UK's most complex nuclear environments? We are seeking a Senior CE&I Engineer to support a range of engineering and decommissioning projects across the Sellafield programme, delivering robust CE&I design and safety documentation within a highly regulated setting. This role offers the opportunity to contribute to nationally significant nuclear decommissioning work, supporting the delivery of safety-critical systems that underpin long-term hazard reduction at Sellafield. Key Responsibilities Deliver CE&I design work packages across a variety of nuclear engineering and decommissioning projects Produce and check design substantiation, safety documentation, and technical deliverables Provide expert CE&I input...

Mechanical Design Engineer - Contract (12 Months) | Bedfordshire | Inside IR35 Looking to take on complex engineering challenges that genuinely push your technical capability? We're seeking experienced Mechanical Design Engineers to join a high integrity defence engineering programme focused on advanced platform integration and mission-critical systems. This is an opportunity to work on cutting-edge mechanical sub-systems, complex mechanisms, and high reliability components designed for demanding military environments. Location Ampthill, Bedfordshire On-site presence required Mondays and Tuesdays from September 2025 Contract Details Duration: 12 months Hours: 37.5 per week Schedule: 4-day week (Mon-Thurs) with flexible working Rate: Competitive per hour (inside IR35, inclusive of employer deductions) Clearance: BPSS to start; SC required later Eligibility: Sole UK nationals only (due to programme requirements) Role Overview As a Mechanical Design Engineer, you'll be...

Mechanical Design Engineer - Contract (12 Months) | Bedfordshire | Inside IR35 Looking to take on complex engineering challenges that genuinely push your technical capability? We're seeking experienced Mechanical Design Engineers to join a high integrity defence engineering programme focused on advanced platform integration and mission-critical systems. This is an opportunity to work on cutting-edge mechanical sub-systems, complex mechanisms, and high reliability components designed for demanding military environments. Location Ampthill, Bedfordshire On-site presence required Mondays and Tuesdays from September 2025 Contract Details Duration: 12 months Hours: 37.5 per week Schedule: 4-day week (Mon-Thurs) with flexible working Rate: Competitive per hour (inside IR35, inclusive of employer deductions) Clearance: BPSS to start; SC required later Eligibility: Sole UK nationals only (due to programme requirements) Role Overview As a Mechanical Design Engineer, you'll be...

Project Engineer, National Grid Competent Person Power Networks Contract, Inside IR35, Umbrella, up to £70 per hour Swansea North, Felindre, Llangyfelach, Swansea SA5 7LU Job Ref: #(phone number removed) Project Engineer required for SCS Swansea North for 1 month who is familiar with Protection and can create rams for installing protection equipment. It is imperative that the person is - - National Grid Competent Person -Has experience working on National Grid Substations / is P&C literate. Start date 5th May 2026 Contract 1 month (possible extended to 6/7 weeks) Rate £70 ph Umbrella, IR35 Inside Location Swansea North (Felidre) Hours 50 per week Role and Scope The primary function of the role is to manage wiremen during internal panel modifications, requiring the candidate to be literate in protection and control systems. Key responsibilities include reading schemes and wiring diagrams and acting as a competent person on National Grid sites. The project does not...

Project Engineer, National Grid Competent Person Power Networks Contract, Inside IR35, Umbrella, up to £70 per hour Swansea North, Felindre, Llangyfelach, Swansea SA5 7LU Job Ref: #(phone number removed) Project Engineer required for SCS Swansea North for 1 month who is familiar with Protection and can create rams for installing protection equipment. It is imperative that the person is - - National Grid Competent Person -Has experience working on National Grid Substations / is P&C literate. Start date 5th May 2026 Contract 1 month (possible extended to 6/7 weeks) Rate £70 ph Umbrella, IR35 Inside Location Swansea North (Felidre) Hours 50 per week Role and Scope The primary function of the role is to manage wiremen during internal panel modifications, requiring the candidate to be literate in protection and control systems. Key responsibilities include reading schemes and wiring diagrams and acting as a competent person on National Grid sites. The project does not...

Project Engineer, National Grid Competent Person Power Networks Contract, Inside IR35, Umbrella, up to £70 per hour Swansea North, Felindre, Llangyfelach, Swansea SA5 7LU Job Ref: #(phone number removed) Project Engineer required for SCS Swansea North for 1 month who is familiar with Protection and can create rams for installing protection equipment. It is imperative that the person is - - National Grid Competent Person -Has experience working on National Grid Substations / is P&C literate. Start date 5th May 2026 Contract 1 month (possible extended to 6/7 weeks) Rate £70 ph Umbrella, IR35 Inside Location Swansea North (Felidre) Hours 50 per week Role and Scope The primary function of the role is to manage wiremen during internal panel modifications, requiring the candidate to be literate in protection and control systems. Key responsibilities include reading schemes and wiring diagrams and acting as a competent person on National Grid sites. The project does not...

12 Month Contract £40.64 per hour umbrella (Inside IR35) Hybrid Working – 1 – 2 days per week on site Job Role: The Senior HVAC Engineer will lead the design, integration, and technical assurance of numerous HVAC systems across a complex marine platform. They will apply deep expertise in system performance, capacity assessment, and optimisation to deliver robust, compliant, and customer focused solutions throughout the shipbuilding lifecycle. The role ensures high engineering standards by driving improvements to processes, supporting technical investigations, and providing evidence-based decision making. Strong HVAC and marine/building services systems experience is essential to ensuring system reliability and capability across the platform. Key Responsibilities: Preparing specifications and developing HVAC system designs in accordance with project requirements, technical standards, and quality expectations. This includes Heat Load Calculations, Psychrometrics, Pressure Drop...

Job Title: Senior Backend Engineer Location: Dunton Essex - 4 days minimum mandatory onsite Rate: £67.15ph Umbrella Co Basis (Inside IR35) Employment Type: Contract (31.12.26) Hours: Standard 37.5 Hours Per Week Reference: F56475 The Senior Backend Engineer plays a pivotal role in driving the technical success in our backend teams. This position involves architecting scalable, resilient, and secure backend solutions and overseeing the technical completion of critical development tasks, often in ambiguous situations. The Senior Backend Engineer is responsible for ensuring that backend code and architectural reviews are aligned with organisational goals, facilitating productive technical discussions, and making decisions to resolve complex backend engineering issues effectively. In this role, the Senior Backend Engineer supports the technical direction for backend development, offering guidance to team members and exemplifying technical excellence in backend practices....

Job Title: Rolling Stock Project Engineer - Multi DisciplineLocation: Central London (with UK and occasional international travel) Rate: £475 per day (inside IR35) Contract Duration: Until 31st December 2025 (potential extension) Overview An opportunity has arisen for a Multi-Disciplinary Rolling Stock Project Engineer to join a major urban rail organisation's Fleet Heavy Overhaul Engineering team. The role will support the delivery of safe, compliant, and efficient rolling stock overhaul engineering activities, working across multiple disciplines within a complex rail environment. You will contribute to technical delivery, engineering assurance, and stakeholder coordination across overhaul projects. This position is based in Central London, with occasional travel within the UK and internationally to support project delivery. Key Responsibilities Lead and support engineering activities within rolling stock overhaul programmes. Produce and review technical documentation and...

We have a contract opportunity working for Luxury Automotive OEM based in Gaydon, Warks Please review details below Job title: Suspension Engineer (C) Location: Gaydon Duration: 12 months Hourly rate: £27.21 p/h INSIDE IR35 (Via Umbrella Solutions) Duties: Apply engineering theories and principles to perform complex work in research and development of suspension engineering systems, including the design, characterization, and iterative refinement of suspension devices. Work with powertrain engineering to develop industrialized products. Level: A Senior Professional (P3) applies advanced knowledge of job area typically obtained through advanced education and work experience. Responsibilities typically include: * Managing projects / processes, working independently with limited supervision. * Coaching and reviewing the work of lower-level professionals. * Problems faced are difficult and sometimes complex. If you want to know more about this exciting contract...

An inside IR35 contract role is available for a Setting out Site Engineer to support the delivery of a major £300 million reinforced concrete package on a cutting-edge carbon capture facility in Teesside. The position involves providing engineering expertise across several key structures, including the turbine hall, condenser plant, and carbon capture unit. Reporting to the Section Engineers, your key responsibilities will be to -   Work safely and in line with approved systems, raising any concerns around safety, environment, or quality. Proactively challenge unsafe practices and carry out safety observations when needed. Perform accurate setting out for complex concrete structures, earthworks, roads, and utilities. Support the Senior Engineers/Section Engineers with material take-offs, stock control, and order scheduling. Prepare Inspection and Test Plans (ITPs), ensure they’re followed, and brief relevant team members. Liaise with the materials team to monitor...

Applications Engineer - HV Substations - Stafford - £70-£75 per hour (Umbrella) - 12-Month Contract - Inside IR35   An opportunity is available for an Applications Engineer to support the preparation of tenders, bids and technical proposals for electrical substation projects. The role focuses on developing technical solutions for HV substation systems and preparing high-quality documentation to support competitive bid submissions.   You will work closely with both engineering and commercial teams during the tendering process, helping define technical scope, equipment specifications and overall system solutions.   Key responsibilities include: Preparing tenders, bids and technical proposals for HV substation projects Developing technical solutions and defining equipment specifications Producing technical documentation to support bid submissions Working collaboratively with commercial and engineering teams during tender stages Supporting the development of competitive...

Safe System of Work (SSOW) Planner Glasgow £400 per day (Inside IR35) 3‑month contract The Role A fantastic opportunity has arisen for an experienced SSOW Planner / Safe System of Work Planner to join a rail contractor based in Glasgow on a 3‑month contract. This role offers £400 per day (Inside IR35) and is critical to the safe and efficient delivery of planned works across the rail infrastructure. You will take ownership of producing compliant Safe System of Work (SSOW) packs, coordinating with project teams, and ensuring all activities are undertaken in line with industry legislation, standards, and best practice. Key Responsibilities Produce accurate and comprehensive SSOW packs to safeguard personnel working on or near the railway. Carry out detailed risk assessments, identifying hazards and implementing suitable control measures. Liaise closely with project managers, engineers, delivery teams, and external stakeholders to ensure seamless planning and integration....

Senior EC&I Designer - Sellafield Ponds Programme Contract | £51-£56/hour (Inside IR35) Warrington | Hybrid - 3 days on site / 2 days remote Sector: Nuclear Decommissioning | Sellafield Ponds We are seeking an experienced Senior EC&I Designer to support major engineering works within the Sellafield Ponds Programme, one of the most complex and high-hazard decommissioning challenges in the UK nuclear sector. This role will see you taking a senior position within the EC&I design team, leading the development, review, and delivery of high-integrity design packages for safety-critical systems. You will play a key role in ensuring designs meet strict nuclear safety, regulatory, and engineering standards while supporting project delivery across multidisciplinary teams. Working within a collaborative engineering environment, you will provide technical guidance to designers and engineers, contribute to design reviews, and ensure the production of high-quality EC&I...

CE&I Safety System Design Engineer Silos MSSS SEP 1 & 2 | Nuclear & High-Hazard Environment Warrington Hybrid - 3 days on site £51-£56/hour | Inside IR35 Are you a CE&I Safety System Design Engineer looking to make a real impact on nationally significant infrastructure? This is a high-profile opportunity to join the Silos MSSS SEP 1 & 2 programme, working at the heart of safety-critical design in a complex, regulated environment. You'll be part of a specialist CE&I design team, delivering and checking Safety System design packages that underpin safe operations - while also supporting commissioning activities and mentoring the next generation of engineers. The Role You'll play a key role in: Delivering and checking CE&I Safety System design packages to meet safety, functional and business requirements Supporting and reviewing designs produced by other engineers within the team Working across disciplines to ensure compliant, integrated solutions...