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Contractor 35
Inside IR35 senior design engineer

35 senior design engineer jobs found

CL
Mar 05, 2026  
Senior Design Engineer
This position is ideal for a technically strong engineer with deep expertise in engine component design, particularly major castings such as cylinder heads and cylinder blocks. Senior Design Engineer 📍 Peterborough (5 days onsite) 💰 £50.00 - £51.31 per hour (Inside IR35) 📅 24-Month Contract (Very Likely to Extend) We are seeking an experienced Senior Design Engineer to join a high-performing Component Engineering team during an exciting period of investment and new product introduction. The Opportunity This position is ideal for a technically strong engineer with deep expertise in engine component design, particularly major castings such as cylinder heads and cylinder blocks. Key Responsibilities Lead the design and development of Cylinder Heads and Cylinder Blocks for diesel and alternative fuel applications Deliver full layout architecture through to detailed 3D modelling for cost-effective, production-ready solutions Collaborate with global teams to ensure designs meet...
IR35 Status:
Inside IR35

CV-Library Peterborough, Cambridgeshire Contractor
CL
Mar 01, 2026  
Senior Design Engineer
Contract Senior Design Engineer We are seeking a highly skilled Contract Senior Design Engineer to support Design in Catia V5 for long-term Aircraft CAD based new projects for the future. This is based on development of wing structure definition to structural sizing, interface and project requirements Toolsets. This is an initial 12 month Inside IR35 contract supporting our end client based in our offices in Bristol. Key Requirements CAD capability to support parametric model generation and update CAD capability to support 2d drawing generation for detail parts and installations Understanding of modelling methodologies and processes Ability to interpret stress sizing data and project requirements to support CAD design solutions Interface management between wing structural components and systems Microsoft office applications - excel, ppt etc. Experience of Catia V5 and Catia V6/3DX Preferred Experience RnT project experience Wing structure design solutions...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 05, 2026  
Senior Site Engineer
Senior Site Engineer – Highways Location: Near Weston-super-Mare Direct Reports: Site Engineer Rate - Inside IR35  Role Overview We are seeking an experienced Senior Site Engineer to join our highways project team based near Weston-super-Mare. The successful candidate will support the Sub Agent in delivering highways and utilities works safely, on programme, and to the required quality standards. This role will involve managing day-to-day site engineering activities and overseeing a Site Engineer to ensure works are delivered in accordance with design, specification, and contractual requirements. Key Responsibilities Report directly to the Sub Agent and provide technical support to the site management team. Manage and mentor a Site Engineer, reviewing setting out, quality checks, and documentation. Oversee highways works including earthworks, drainage, kerbing, surfacing, S278/S106 works and associated infrastructure. Coordinate and manage utilities works (diversions,...
IR35 Status:
Inside IR35

CV-Library Banwell, UK Contractor
CL
Mar 05, 2026  
Senior AWS Platform Engineer (SC Cleared)
Day Rate: £(Apply online only)/day (Inside IR35) Contract Length: Until end of May 2026 (extension highly likely) Location: Remote, with occasional travel to London, Manchester, Leeds or Newcastle (~2 days/month) Clearance Required: Active SC clearance is essential A major public sector programme is seeking multiple Senior AWS Platform Engineers to support the development of a secure, scalable cloud hosting platform. Key Responsibilities: Design and build AWS infrastructure using Terraform Implement secure networking (VPC, ALB, Transit Gateway, WAF) Support CI/CD pipeline deployments and automation Deploy and manage containerised workloads (ECS, Docker) Contribute to observability (CloudWatch, Prometheus) Collaborate with architects and mentor junior engineersEssential Skills: Active SC clearance (mandatory) Strong AWS engineering experience in production environments Proficient in Terraform and Infrastructure as Code Solid understanding of IAM, security groups, KMS, and...
IR35 Status:
Inside IR35

CV-Library United Kingdom Contractor
CL
Mar 05, 2026  
Contract Senior Structural Engineer
Contract Senior Structural Engineer Location: London (Hybrid Working) Rate: Up to c£50 per hour (Experience dependant) Contract Length: 6 Months Start Date: Immediate IR35 Status: Inside IR35 The Opportunity A leading international engineering consultancy based in Central London is seeking an experienced Contract Senior Structural Engineer to join their team on a high-profile, technically challenging portfolio of projects. This is an excellent opportunity for a hands-on design-focused engineer with a strong background in building structures to work within a respected global consultancy delivering complex and prestigious schemes across the UK and internationally. Key Responsibilities You will play a pivotal role in the technical delivery of a wide range of projects, including: * High-rise building developments * Major commercial and retail structures * Hotels and museum projects * Sports and entertainment complexes The role is heavily design-led and will involve...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 05, 2026  
Civil Technical Engineering Manager - Ancillary Works
Role: Civil Technical Engineering Manager - Ancillary Works Location: London or Bristol - With travel to SZC site Duration: Ongoing Contract Pay: TBC - Inside IR35 (PAYE / Umbrella) Shape One of the UK's Most Important Infrastructure Projects Few engineering roles offer the chance to leave a legacy that genuinely matters. Sizewell C is the UK's next major nuclear power station - a nationally significant project that will deliver low-carbon electricity to around six million homes for at least 60 years, playing a critical role in the UK's journey to Net Zero. Following the successful delivery of Hinkley Point C, Sizewell C has now entered construction and is progressing through one of the most complex and technically demanding phases of delivery. We are looking for an experienced Civil Technical Engineering Manager (Ancillary Works) to take technical leadership of critical civil infrastructure that underpins the wider nuclear programme. This is a senior, influential role...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 05, 2026  
Network SRE
Senior Network SRE (Contract) Location: On-site 5 days a week in London Rate: £500 per day Contract: Inside IR35 We're looking for a Senior Network Site Reliability Engineer (SRE) to join a global network operations team supporting large-scale, business-critical infrastructure. This is a hands-on, high-impact contract role where you'll play a key part in keeping complex network environments reliable, scalable, and performant. You'll take ownership of major incidents, troubleshoot deep technical issues, and drive automation and observability across a multi-vendor estate. The role: Lead incident management for critical network issues, owning resolution during outages and high-pressure situations Troubleshoot complex network problems across routing, switching, firewalling, and wireless environments Provide technical leadership, setting direction and mentoring other engineers Operate in a 24/7 environment, participating in a shift-based support model Work across a multi-vendor...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 05, 2026  
Principal Research Engineer
Senior Principal Research Engineer Composite Materials / Advanced Materials Contract Length: 6 months Rate: £60 per hour Umbrella IR35 Status: Inside IR35 Location: Hybrid (2 days per week from home) Clearance required: DV - 10 years residency in the UK with no more than 3 months out of the country in one period. Strong technical knowledge of composite materials, including design, processing, and performance characteristics. Proven experience leading R&D projects and delivering successful outcomes. Industry experience-ideally within defence, aerospace or other high-performance sectors. Excellent communication, stakeholder engagement, and project leadership capabilities. About the Role We are seeking a highly skilled Principal Research Engineer with expertise in advanced composite materials / CMC's to lead and deliver cutting-edge research programmes. This role is ideal for an experienced materials specialist who is passionate about pushing the boundaries of composite...
IR35 Status:
Inside IR35

CV-Library Bristol, UK Contractor
CL
Mar 04, 2026  
RF Design Engineer
Job Title Senior RF Electronics Design Engineer Location Onsite UK Contract Details 12 month contract £75 per hour Inside IR35 Overview A leading engineering organisation operating in the defence and advanced communications sector is seeking a Senior RF Electronics Design Engineer to take technical ownership of complex RF electronics designs. This role sits at the heart of a multi discipline development environment and requires someone who is genuinely hands on across design, test and verification. You will act as the design lead for specific RF electronics assemblies, working closely with system, software, mechanical and production teams to ensure successful integration and delivery. Key Responsibilities Technical ownership of assigned RF electronics designs from concept through to delivery. Hands on design, test, validation and proving of RF electronics hardware. Effective interface management with system stakeholders, design authorities and cross functional...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Mar 04, 2026  
Quantitative Developer
Job Title: Job Title: Quantitative Developer Location: London, UK (Hybrid – 3 days onsite per week) Contract Type: Inside IR35 Experience * 10+ years of professional experience as a Quantitative Developer or Senior Software Engineer within financial services. Role Overview We are seeking an experienced Quantitative Developer to build and enhance high-performance trading and analytics platforms. The role involves close collaboration with quantitative researchers and trading teams to deliver robust, scalable, and production-ready systems in a fast-paced environment. Key Responsibilities * Design, develop, and maintain high-performance trading, pricing, and analytics systems * Implement quantitative models and strategies using C/C++ and Python * Optimise applications for low latency, high throughput, and stability * Work extensively in Linux environments, including automation via shell scripting * Collaborate with quants,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 04, 2026  
FPGA Engineer
Job Title: Senior / Principal FPGA Engineer Duration: 6 Month (Contract) Location: Bristol Rate: £70 (Inside IR35) About the role We are looking for an experienced Senior / Principal FPGA Firmware Engineer to support the design, development, and verification of firmware for complex, safety-critical systems within a regulated engineering environment. You will work closely with systems, hardware, and software teams to deliver robust FPGA-based solutions for advanced electronic systems. Key Responsibilities * Design and develop FPGA firmware using VHDL (Verilog/SystemVerilog desirable). * Verify and debug firmware designs at module, hardware, and system level. * Translate system and hardware requirements into detailed firmware requirements. * Support integration, validation, and troubleshooting of FPGA designs. * Work with FPGA toolchains across Xilinx, Intel (Altera), and Microsemi devices. * Produce clear technical...
IR35 Status:
Inside IR35

CV-Library Bristol, City of Bristol Contractor
CL
Mar 01, 2026  
FPGA Engineer
Job Title: Senior / Principal FPGA Engineer Duration: 6 Month (Contract) Location: Edinburgh Rate: £70 (Inside IR35) About the role We are looking for an experienced Senior / Principal FPGA Firmware Engineer to support the design, development, and verification of firmware for complex, safety-critical systems within a regulated engineering environment. You will work closely with systems, hardware, and software teams to deliver robust FPGA-based solutions for advanced electronic systems. Key Responsibilities * Design and develop FPGA firmware using VHDL (Verilog/SystemVerilog desirable). * Verify and debug firmware designs at module, hardware, and system level. * Translate system and hardware requirements into detailed firmware requirements. * Support integration, validation, and troubleshooting of FPGA designs. * Work with FPGA toolchains across Xilinx, Intel (Altera), and Microsemi devices. * Produce clear technical documentation and...
IR35 Status:
Inside IR35

CV-Library Edinburgh, City of Edinburgh Contractor
CL
Mar 01, 2026  
Technology Resilience Architect
We are recruiting for a Technology Resilience Architect for a leading IT Service provider in one of their UK Office locations. We are currently seeking an experienced professional to join our team in the role of Technology Resilience Lead Enterprise Architect. The ideal candidate is passionate about technology resilience, with knowledge of how the ways that a service is designed, built, and run contribute to overall resilience. They will work on the big global resilience initiatives and play a key role in uplifting the quality and availability of service for our customers. Responsibilities: Contribute to the Technology Resilience strategy and sub-strategies, considering all aspects of resilience: application, infrastructure, security, data, observability, operations and culture. Collaborate with Technology teams on building best practice resilience design patterns and solutions, for re-use. Build strong feedback loops from production incident data to the best practice for...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Feb 27, 2026  
PES Lead Engineer/Principal Engineer
PES Lead Engineer/Principal Engineer Hybrid/Warrington (3 days per week in office - Mon/Tue/Wed), with occasional visits to Sellafield Site, Suppliers, and Contractors' facilities £55-61/hour Inside IR35 About the Role We are seeking an experienced SNM PES Lead Engineer to act as the Subject Matter Expert (SME) for Programmable Electronic Systems (PES) across the SNM project portfolio. This key role will see you delivering PES projects from concept through to handover, ensuring all deliverables meet Sellafield Ltd's high standards of quality, safety, and compliance. You will work closely with Senior/Responsible Engineers, operators, maintainers, safety case managers, and the wider Integrated Project Team (IPT) to define requirements, manage stakeholders, and deliver complex PES solutions. The role also involves overseeing supply chain delivery, verifying and validating technical outputs, and managing internal PES resources. Typical projects include: North Transfers Project -...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Feb 26, 2026  
Lead Control Systems Engineer
We have an exciting opportunity for a Lead Control Systems Engineer to be based full time onsite at Warrington or Cumbria. This is a contract role inside IR35 at the market rates. Candidates can start with BPSS security clearance whilst higher level clearance is being undertaken. You should be British Citizens and passport holders and not have worked outside the UK during the past 5 years. ROLE SUMMARY: We are looking for an experienced Lead Control Systems Engineer to take technical leadership of control systems design, implementation, testing, commissioning, and ongoing support across multidisciplinary projects. You will be the technical authority for control systems engineering, ensuring robust, compliant, and high-quality solutions, and driving engineering excellence across the project lifecycle. This is a hands-on leadership role with strategic influence - ideal for engineers who want to shape architecture, mentor others, and make high-impact decisions. KEY...
IR35 Status:
Inside IR35

CV-Library Warrington, UK Contractor
CL
Feb 11, 2026  
Electrical Commissioning Engineer
OLG Recruitment are recruiting for an Electrical Commissioning Engineer to work for a major client based in Immingham. This is a temporary contract role, working 40 hours per week, with an approximate duration of 12 months. This role will be inside of IR35. Basic Purpose: Ensures that all high-voltage (HV) and low-voltage (LV) electrical systems and equipment are installed, tested, and verified to meet design specifications, safety standards, and operational requirements. Primary purpose is to lead pre-commissioning (FAT) and commissioning (SAT) activities, troubleshoot issues, and confirm readiness for safe and reliable integration into existing infrastructure and unit startup. Primary Responsibilities: * Develop commissioning plans and lead the execution of FAT and SAT procedures for HV and LV equipment and distribution systems. * Provide technical support for project electrical Supervisors and Technicians. * Coordinate and lead activities between Electrical resources...
IR35 Status:
Inside IR35

CV-Library Immingham, North East Lincolnshire Contractor
CL
Mar 05, 2026  
Principal Software Engineer
Principal Software Engineer Edinburgh 12-Month Contract Paying up to £87p/h (Inside IR35) Please note - due to the nature of the work, you will need to hold or be eligible to obtain a high level of UK Security clearance - please only apply if suitable Key Responsibilities: Create and deliver software solutions within a defined work package area, ensuring that the package meets all stakeholder requirements Establish and mature stakeholder needs, associating/attributing priority, interest, influence and trading-off needs to determine optimum capability to solve stakeholders? problems Create high quality and robust code; for fully documenting and recording your work products; keeping them under configuration management and providing plans and reports on progress to your line manager Work closely with internal and external stakeholders to ensure architecture alignment with other elements of the programme. Ensure the application of appropriate tools / techniques for test...
IR35 Status:
Inside IR35

CV-Library Edinburgh, UK Contractor
CL
Mar 05, 2026  
Storage Senior DPS SME
Storage Senior DPS SME +Hybrid working in Sheffield +Inside IR35 +£425 - £450 a day Skills: +Commvault +Veritas NetBackup We are seeking an experienced Storage Senior DPS SME to join a major financial services organisation. This role sits within the bank's data protection services function and will focus on automation, monitoring, and engineering support across enterprise-scale data protection platforms. You will play a key role in designing and supporting automation solutions, enhancing monitoring and reporting, evaluating new product capabilities, and providing technical leadership within the team. Key Responsibilities Design, develop, test, and support automation for enterprise data protection services Build and maintain reporting and monitoring capabilities for automated solutions Provide engineering support for the bank's data protection products and standard usage models Evaluate products, new features, and new versions to support continuous improvement Produce...
IR35 Status:
Inside IR35

CV-Library Sheffield, South Yorkshire Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer (Military Packaging Design)
World Class Defence Organisation is currently looking to recruit a Mechanical Design Engineer (Military Packaging Design) subcontractors on an initial 12 month contract. This role would suit a Mechanical Design Engineer who comes from a strong Defence or Aerospace background has strong Creo / PRO-E skills.         Job Title:  Mechanical Design Engineer Rate: £50.00 per hour Location: Stevenage Hybrid / Remote working: Hybrid, 2-3 days min on site. Although this can change due to workload. Can be continually reviewed. 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) Mechanical Design Engineer - Military Packaging Design Job Description: An opportunity to become part of Europe’s No. 1 Missile Systems Designer, as a Mechanical Design Engineer. You will work closely with other functional teams, to develop...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Mar 04, 2026  
Mechanical Design Engineer (Military Packaging Design)
Mechanical Design Engineer (Military Packaging Design) JOB LOCATION: STEVENAGE SECURITY: SC - Potential BPSS start DURATION: 12+ Months Likely to extend TYPE: Contract WORK PATTERN: Hybrid, 2-3 days min on site. Although this can change due to workload. Can be continually reviewed. 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 Can be open to industry experience as ling as they have the skillset. Def/Aero can be beneficial, but other areas such as: * Automotive Essential Skillset & Tools * Ideally Degree, HND, or HNC in Mechanical Engineering (or equivalent) with relevant industry experience * Robust hands-on experience with design methodologies such as DFMEA, DFA, and DFM * Strong communication skills with the ability to influence, negotiate, and make technical decisions * Experience engaging...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
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