1 to 25 of 28 Contract Principal Engineer Jobs

Principal Engineer – Fire Safety Location: Barrow (remote working, with occasional requirements for site visits to support specific project needs) Duration: 12 months Rate: £56.40 per hour PAYE or £76.16 per hour Umbrella Would you like to play a crucial role within fire safety to ensure the safe delivery of Royal Navy submarines? Our client is currently recruiting for … a Principal Engineer – Fire Safety in their submarines business. As a Principal Engineer – Fire Safety, you will act as a subject matter expert for fire safety and will be a key contributor in ensuring safe submarines by design. You will engage with a wide range of engineering stakeholders across our programmes to develop and embed fire More ❯

Principal Software Engineer – Cloud Platform Team Contract Inside IR35 Rate – 600 P/D - 700 P/D 6 Months Initially Wilmslow Based – 1 - 2 day a week onsite As a Principal Software Engineer, you will work in one of the Cloud platform teams, playing a key role in developing software which makes a real impact … are being worked on to support the new platform, such as developing monitoring using DataDog, security hardening using GitHub Actions, introducing Playwright for our automation testing. Responsibilities As a Principal Software Engineer within the Cloud platform, you would be part of the Informatics group producing software that is used by people worldwide for specialist measurement and scientific analysis. … JFrog Artifactory Ideally some software security best practices and implementation (e.g. OWASP, PKI, X509 Certificates, TLS) Software development for regulated environments (e.g. IVD/Medical devices). Not essential. Principal Software Engineer – Cloud Platform Team More ❯

Principal Software Engineer - Active NNPV3, SC, Java, Oracle, AWS Up to £635 per day (Inside IR35) London/Remote 6 to 12 Months My client is an instantly recognisable consultancy who require a Principal Software Engineer with Active NPPV3 and Active Security Clearance (SC), to join a business critical programme with an end client. Key Requirements … Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯

Principal Software Engineer - Active NNPV3, SC, Java, Oracle, AWS Up to £635 per day (Inside IR35) London/Remote 6 to 12 Months My client is an instantly recognisable consultancy who require a Principal Software Engineer with Active NPPV3 and Active Security Clearance (SC), to join a business critical programme with an end client. Key Requirements … Proven experience as a Principal Software Engineer Active NPPV3 and Active Security Clearance (SC) Proven experience in migration of legacy (Java) to modern versions (EE/EJB to Spring) Migration from Oracle to PostgreSQL, and from Data Centre to Cloud (AWS) Understanding of Java Standard Edition 8, Java Enterprise Edition 5, 6 and 11 Demonstrable experience with PL More ❯

Principal Systems Engineer (x2) Location: Basildon (3 days on site each week) Duration: 6 months Rate: £74.07 per hour Umbrella Our client is recruiting for two Principal Systems Engineers to be part of a team supporting their next generation Hostile Artillery Locating System development. Joining during a crucial part of the engineering lifecycle you will lead end … system designed to meet the increasing threat of electronic warfare based targeting and anti-radar weapon systems countering radar-based weapon locating systems. What you'll do as a Principal Systems Engineer: Contribute to requirements specification and management for complex, multi-faceted outputs. Participate in systems integration, verification, qualification & validation. Supporting junior engineers and contribute to technical excellence More ❯

Job Title: Principal Systems Engineer Duration: 12-Month Rolling Contract Location: On-site South West England (Hybrid with on-site presence required) Hourly Rate: £70.00 £80.00 (Inside IR35) Clearance: Current SC Clearance (or eligibility) required Principal/Senior Systems Engineer We are seeking an experienced Principal/Senior Systems Engineer to support a long … This role involves full lifecycle systems engineering, from requirements management through to integration, verification & validation, and delivery of complex platform-based systems. Requirements: Proven experience as a Senior or Principal Systems Engineer within defence, aerospace, or maritime sectors Strong understanding of systems engineering lifecycle, including requirements capture, architecture design, integration, and V&V Hands-on experience with integration More ❯

Principal Product Safety Engineer – Safety & Environmental Portsmouth or alternatively Filton, hybrid working 3-4 days on site per week – 6 month duration – Pay rate £55.31 p/h PAYE basic (£63.35 p/h including holiday pay) or £74.68 p/h Umbrella The Principal Engineer – Product Safety shall provide support to the Engineering Delivery Manager More ❯

Principal Data Engineer - Contract - Inside IR35 Spinks are working with a scaling Digital Transformation Consultancy who have an exciting new project with a leading Media & Entertainment provider. They're looking for multiple experienced Data Engineers to join on an initial 6 month contract basis, with scope for further extensions. -Python, AWS, dbt, SQL, -Principal Data Engineer More ❯

Principal Product Safety Engineer – Safety & Environmental Barrow-in-Furness, Cumbria (Frimley or Filton are alternative locations) hybrid working circa 2 days on site per fortnight – 12 month duration – Pay rate £55.31 p/h PAYE basic (£63.35 p/h including holiday pay) or £74.68 p/h Umbrella We are looking for a Safety Engineer to … work at Principal Engineer level on Product Safety and Environmental Engineering tasks for our defence client on Submarine systems. You will be working as part of an Integrated Development Team, established to develop and deliver submarine systems/capability. Typical Responsibilities: Focusing on ensuring that Product Safety tasking and activities are completed across multiple systems in support of … Integrated Development Team operates within the project Safety Management System. Liaising with other Integrated Development Teams and the Whole Boat Safety Team. Requirements: Practical ability as a Product Safety Engineer in the maritime defence sector is preferable, although experience in other sectors will be considered. An understanding of 'Safety and Systems Engineering' and of the 'Engineering Life Cycle Management More ❯

Principal Systems Engineer Location: Cowes Duration: 12 months Rate: £60 per hour PAYE or £81.05 per hour Umbrella Responsibilities Develop novel solutions to evolving technical challenges and emerging issues for complex phased array Radar Systems that customers and end-user communities are facing. Conduct system design analysis to manage trade-offs of principle system parameters to characterise and More ❯

Principal Systems Engineer Location: Cowes or Broad Oak (full time on site, 4 day consolidated week available) Duration: 12 months Rate: £60 per hour PAYE or £81.05 per hour Umbrella Responsibilities Develop novel solutions to evolving technical challenges and emerging issues for complex phased array Radar Systems that customers and end-user communities are facing. Conduct system design More ❯

Principal Systems Engineer Basildon Paying up to £75p/h (Inside IR35) Responsibilities : Contribute to requirements specification and management for complex, multi-faceted outputs. Participate in systems integration, verification, qualification & validation. Supporting junior engineers and contribute to technical excellence across the organisation. Ensure compliance with Mil Std?s, Industry Std?s and regulatory requirements. Supporting activities including design More ❯

Principal Systems Engineer (x2) Location: Basildon (3 days on site each week) Duration: 6 months Rate: £74.07 per hour Umbrella As a Systems Engineer, you will bridge the gap between the theoretically possible and the practically implementable. Our client is recruiting for a number of roles from a variety of backgrounds and skillsets. Based upon your skills … and foundation knowledge, they will assess where your knowledge and skills would best fit and discuss the options with you. System Engineer(s) Strong technical understanding of System architectures. Good proven ability in design of communication systems & Radar architectures & configuration. Knowledge in RF comms and/or Radar systems ideal, but not essential. Understanding how to produce system design … evidence gathering and presentation for CDR & other Engineering lifecycle events. Demonstrate compliance to customer & devolved system requirements through linked evidence. Take full ownership & responsibility for all tasks. ITEA System Engineer Strong technical understanding of System architectures. Capable of deriving & producing technical descriptions from a system architecture. Able to write test a strategy & test planning & procedures. Familiar with system test More ❯

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 and architecture from system requirements A structured approach to firmware More ❯

Principal Systems Engineer Southampton 6-month contract Paying up to 75p/h (Inside IR35) Responsibilities : Strong technical understanding of System architectures Good experience in design of communication systems & Radar architectures & configuration Experience in RF comms and/or Radar systems ideal, but not essential Understanding how to producing system design documentation primarily for evidence gathering and presentation More ❯

Principal Systems Engineer Basildon 6-month contract Paying up to 75p/h (Inside IR35) Responsibilities : Strong technical understanding of System architectures Good experience in design of communication systems & Radar architectures & configuration Experience in RF comms and/or Radar systems ideal, but not essential Understanding how to producing system design documentation primarily for evidence gathering and presentation More ❯

Principal Systems Engineer Basildon 6-month contract Paying up to £75p/h (Inside IR35) Responsibilities : Strong technical understanding of System architectures Good experience in design of communication systems & Radar architectures & configuration Experience in RF comms and/or Radar systems ideal, but not essential Understanding how to producing system design documentation primarily for evidence gathering and presentation More ❯

We are recruiting for a Principal Systems Engineer to be part of a team supporting our next generation Hostile Artillery Locating System development. Joining during a crucial part of the engineering lifecycle you will lead end-to-end systems engineering efforts, from concept through to deployment. Collaborating across cross-functional teams to support integration and qualification of technical … solutions. What you'll do as a Principal Systems Engineer : Contribute to requirements specification and management for complex, multi-faceted outputs. Participate in systems integration, verification, qualification & validation. Supporting junior engineers and contribute to technical excellence across the organisation. Ensure compliance with Mil Std's, Industry Std's and regulatory requirements. Supporting activities including design reviews and peer More ❯

Principal Safety Engineer – Product Safety Barrow-in-Furness, Cumbria hybrid working 1-2 days on site per month – 12 month duration – Pay rate £55.31 p/h PAYE basic (£63.35 p/h including holiday pay) or £74.68 p/h Umbrella The Principle Engineer – Product Safety shall provide support to the Engineering Delivery Manager in the More ❯

Principal FullStack Engineer - NPPV3, SC, Java, 4GL, Java Script Up to £635 per day (InsideIR35) London/Remote 12 Months My client is an instantly recognisable consultancy who require a Principle/Lead FullStack Engineer with Java, C#, Java Script and Active Security Clearance (SC), as well as Active NPPV3, to lead a team of Engineers in … a critical project for an end client.Key requirements: Principal FullStack engineer with experience leading teams of engineers on complex projects Active Security Clearance (SC) and Active NPPV3 Full stack experience in C#, Java (Spring Boot, JPA/Hibernate), Rest APIs Experience in building microservices and knowledge of SOLID principles Understanding of 4GL (fourth generation programming language) Experience in More ❯

Role: Principal Engineer Start Date: August 2025 Contract Length: 12 Months Work Location: Remote IR35 Status: Inside IR35 Security Clearance: SC & NPPV3 Cleared Join a major government programme where you’ll lead multiple engineering teams, develop critical digital services, and support 24/7 live systems. This is a leadership role within a SAS team, focused on building More ❯

Senior Systems Engineer £70ph (Inside IR35) Basildon (4 days p/w on site) Initial 9 months HALO (Hostile Artillery Locating System) is a state-of-the-art long-range acoustic weapon locating system designed to meet the increasing threat of electronic warfare based targeting and anti-radar weapon systems countering radar-based weapon locating systems. We are recruiting … for a Senior Systems Engineer to be part of a team supporting our next generation Hostile Artillery Locating System development. Joining during a crucial part of the engineering lifecycle you will lead end-to-end systems engineering efforts, from concept through to deployment. Collaborating across cross-functional teams to support integration and qualification of technical solutions. What you'll … do as a Senior Systems Engineer: Contribute to requirements specification and management for complex, multi-faceted outputs. Participate in systems integration, verification, qualification & validation. Supporting junior engineers and contribute to technical excellence across the organisation. Ensure compliance with Mil Std's, Industry Std's and regulatory requirements. Supporting activities including design reviews and peer reviews. Development of the software More ❯

Senior Systems Engineer - Radar/Comms/RF/ITEA £70ph (Inside IR35) Southampton or Basildon (4 days p/w on site) Initial 6 month Our Systems Engineers span across range of activities that help pull together all the necessary engineering and technology strands into a high-performance system. As a Systems Engineer, you will bridge the … of backgrounds and skillsets. Based upon your skills and foundation knowledge, we will assess where your knowledge and skills would best fit and discuss the options with you. System Engineer(s) Strong technical understanding of System architectures Good experience in design of communication systems & Radar architectures & configuration Experience in RF comms and/or Radar systems ideal, but not … evidence gathering and presentation for CDR & other Engineering lifecycle events. Demonstrate compliance to customer & devolved system requirements through linked evidence Take full ownership & responsibility for all tasks ITEA System Engineer Strong technical understanding of System architectures Capable of deriving & producing technical descriptions from a system architecture Able to write test a strategy & test planning &procedures Familiar with system test More ❯

Our client is looking for a number of Principle Site Reliability Engineers to join their team on a initial six month contract, working a couple days onsite in Wokingham a week and the rest remotely. This role is Inside IR35 More ❯

Senior Systems Engineer - Radar/Comms/RF/ITEA £70ph (Inside IR35) Southampton or Basildon (4 days p/w on site) Initial 6 month Our Systems Engineers span across range of activities that help pull together all the necessary engineering and technology strands into a high-performance system. As a Systems Engineer, you will bridge the … of backgrounds and skillsets. Based upon your skills and foundation knowledge, we will assess where your knowledge and skills would best fit and discuss the options with you. System Engineer(s) Strong technical understanding of System architectures Good experience in design of communication systems & Radar architectures & configuration Experience in RF comms and/or Radar systems ideal, but not … evidence gathering and presentation for CDR & other Engineering lifecycle events. Demonstrate compliance to customer & devolved system requirements through linked evidence Take full ownership & responsibility for all tasks ITEA System Engineer Strong technical understanding of System architectures Capable of deriving & producing technical descriptions from a system architecture Able to write test a strategy & test planning &procedures Familiar with system test More ❯