22 of 22 Contract Principal Engineer Jobs in the UK

Principal Engineer Databases Contract- 6 months with possible extension Location- Sheffield, UK (hybrid Role Overview: We are seeking an experienced Principal Engineer with deep expertise in database technologies and strong engineering skills to help accelerate the delivery of DBaaS in 2026. As a Principal Engineer … masters degree in computer science, Engineering, or a related field. 10+ years of engineering experience, with at least 5 years in a senior or principal engineering role. Expertise in infrastructure components, performance tuning, and capacity planning. Hands-on experience with microservices, software development, infrastructure automation, API development, and application ...

Principal Product Security Engineer 12 Month Contract (Hybrid, 2-3 days per week on site) - Frimley, Barrow or Weymouth Based £85.40 an hour Umbrella Inside IR35 This is a great opportunity to work within one of the UKs leading Defence companies based in Frimley. Hybrid, 2-3 days … week on site. Knowledge, Skills and Qualifications Knowledge: * The PSA Principal Engineer will have a good understanding of the applicable regulations, standards, policies and guidance on information risk management, to be able to identify, analyse and evaluate information risks. * They will be able to document and present risk ...

Title: Principal Systems Engineer (Facilities & Infrastructure Upgrades) Location: Boscombe Down WFH: 3 days onsite per week Duration: 6 months Clearance: SC to Start preferred IR35: Inside Day Rate: DOE Key Skills: Systems Engineering, Test, Trials, Training, Infrastructure, Engineering, Rail, Nuclear, Aviation, Military, Full Lifecycle, RIBA … About the Role We are seeking an experienced Principal Systems Engineer to lead the technical delivery and systems engineering of complex, high-value infrastructure projects supporting Test, Trials, Training and Evaluation. This includes facilities and infrastructure that supports the testing of aviation, land, and environmental systems. In this ...

Principal Firmware Engineer Edinburgh 12-month contract Paying up to 75p/h (inside IR35) The Opportunity We are seeking a Senior or Principal Firmware Engineer to join a high-performing engineering team delivering advanced digital systems within the Aerospace, Defence, and Security sector. At Senior … Principal level, you will also provide technical leadership, supporting the delivery of work across multiple engineers while contributing to process improvement and best practice development across FPGA/Firmware teams. Key Responsibilities Design and develop innovative VHDL-based FPGA architectures Apply advanced verification techniques using VHDL or SystemVerilog/ ...

Principal Systems Engineer Location: Luton Duration: 12 months Rate: Up to £75.00 UMBRELLA INSIDE IR35 On site: 4 days a week (options for compressed week) The Opportunity Our client has an opportunity for a Principal Systems Engineer to work in the modification, test and certification ...

Principal RF Engineer Client: BAE Systems Location: Cowes or Great Baddow Duration: 6 months with potential for extension Hourly Rate: £60 PAYE or £81.05 Umbrella Working Arrangements: Mon – Thurs on site The Role We are seeking a Principal RF Engineer to provide technical expertise ...

Principal Firmware Engineer Location: Edinburgh, Bristol or Luton. Duration: 12 months Rate: £102ph UMBRELLA INSIDE IR35 Clearance: Must be eligible for SC We are looking for a Firmware Engineer at Senior or Principal Level to join our team in Edinburgh as an experienced Firmware/FPGA … Engineer, you will work with the support of experts in their field, using world-class facilities to deliver click apply for full job details ...

Principal Firmware Engineer Location: Edinburgh, Bristol or Luton. Duration: 12 months Rate: £102ph UMBRELLA INSIDE IR35 Clearance: Must be eligible for SC We are looking for a Firmware Engineer at Senior or Principal Level to join our team in Edinburgh as an experienced Firmware/FPGA … Engineer, you will work with the support of experts in their field, using world-class facilities to deliver Firmware for complex digital systems that meet challenging future customer requirements. You will use or develop team leading experience to support the delivery of work from several engineers. Your expertise will ...

Principal Firmware Engineer Location: Edinburgh, Bristol or Luton. Duration: 12 months Rate: £102ph UMBRELLA INSIDE IR35 Clearance: Must be eligible for SC We are looking for a Firmware Engineer at Senior or Principal Level to join our team in Edinburgh as an experienced Firmware/FPGA … Engineer, you will work with the support of experts in their field, using world-class facilities to deliver Firmware for complex digital systems that meet challenging future customer requirements. You will use or develop team leading experience to support the delivery of work from several engineers. Your expertise will ...

Principal Firmware Engineer Location: Edinburgh, Bristol or Luton. Duration: 12 months Rate: £102ph UMBRELLA INSIDE IR35 Clearance: Must be eligible for SC We are looking for a Firmware Engineer at Senior or Principal Level to join our team in Edinburgh as an experienced Firmware/FPGA … Engineer, you will work with the support of experts in their field, using world-class facilities to deliver Firmware for complex digital systems that meet challenging future customer requirements. You will use or develop team leading experience to support the delivery of work from several engineers. Your expertise will ...

Principal Cloud Platform Engineer - Contract Location: Hybrid (60% office/40% remote) Rate: £580 - £618 per day - Inside IR35 Engagement: PAYE via Umbrella Company only Role Overview We are seeking an experienced Principal Cloud Platform Engineer to help shape the future of our cloud security ...

Description Role Summary The Principal Engineer is the senior technical authority responsible for setting the engineering direction, ensuring platform reliability, and driving innovation across a critical enterprise technology domain. This role provides deep technical leadership, shapes long term strategy, and ensures that engineering teams deliver secure, scalable … resilient services that underpin the organisations digital ecosystem. The Principal Engineer acts as the highest level hands on expert, partnering with architects, product owners, and engineering squads to define standards, modernise platforms, and embed automation and DevOps practices across all services. Technical Leadership Serve as the domains foremost ...

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 ...

Principal Firmware Engineer Luton Paying up to £80p/h (Umbrella) Responsibilities : Artificial Intelligence, including machine learning and genetic algorithms Auto-generated code using model-driven engineering using MATLAB and Simulink tools Design tools such as Xilinx, TCL, Verilog, System Verilog and UVM Derivation of detailed Firmware requirements ...

Principal Systems Engineer Edinburgh OR Newcastle - fully onsite 12-month contract Paying up to 70p/h (Inside IR35) Role overview : Our client is looking for an experienced Systems Engineers to contribute to the continued development of an in-service radar system, by supporting the planning and analysis ...

Principal Architect – Data Platforms/Data Lakes/Cloud/Python – 12 Month Contract – £700 p/d Inside IR35 – London A global digital media organisation are looking for a Principal Architect to join their Data Foundation & Product Analytics team on an initial 12-month contract. This role ...

Principal Software Engineer/Senior Software Engineer/Backend/Developer/Development/C#/C#.NET/.NET Core/Azure/Cloud/CI/CD pipelines/Terraform/GitHub/Hybrid Warwickshire/Remote/£550 650 per day Inside IR35. … leading clients is looking to recruit a Principal Software Engineer. Location Hybrid Warwickshire/Remote (couple of days per month in the office) Duration 6 months Day Rate £550 650 per day Inside IR35 You will be designing, building, and managing cutting-edge cloud based software platforms. Experience: C# ...

Role: Principal Safety Engineer Location : Plymouth(Hybrid) Duration : 12 months Inside IR35 : Umbrella About our client: Our client in Devonport is a leading engineering and maritime organisation specialising in the maintenance, repair, and overhaul of naval vessels. The site operates with a skilled workforce across mechanical, electrical ...

Engineer Location: Edinburgh Working Pattern: 90% onsite Contract Length: 6 months IR35: Inside IR35 Rate: £65p/h PAYE (£74.45p/h inc. holiday rate) OR £88.63p/h Umbrella We seek an engineer who has worked in a military/defence environment/industry within the last … months Role Overview We are seeking an experienced Senior or Principal RF Engineer to support the design and development of advanced RF and microwave hardware within a leading defence technology environment. The successful candidate will work across the full hardware lifecycle, from system concept and detailed design through ...

This is an exciting opportunity, potentially extending to around two years, for a Lead/Principal Technical Safety Engineer to join our clients new Aberdeen office supporting the necessary upgrades for the INEOS FPS Kinneil terminal to carry it through to end of life operation beyond 2040. … safety documentation in line with agreed project budgets and timescales. You will initially join a technical safety project team comprising an experienced Lead/Principal Technical Safety Engineer and a Technical Safety Engineer from the companys Manchester office (working remotely) but will soon be expected ...

highly knowledgeable professional engineer with a depth and breadth of knowledge in Systems Engineering. Applies the principles of Systems Engineering to Radar system development across the entire engineering development lifecycle from requirement definition to system integration and customer acceptance into system support and disposal. This role entail analysis ...

highly knowledgeable professional engineer with a depth and breadth of knowledge in Systems Engineering. Applies the principles of Systems Engineering to Radar system development across the entire engineering development lifecycle from requirement definition to system integration and customer acceptance into system support and disposal click apply for full ...