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Contractor 37
Information Technology development engineer

37 development engineer jobs found

CL
Mar 26, 2026  
Cyber Security Engineer
We are supporting a major international industrial organisation in the search for a Senior Technical Security Engineer to strengthen their global cyber security capability. This is a senior technical role responsible for protecting critical IT infrastructure, business systems and corporate data by leading the engineering and operational delivery of security monitoring, detection and response capabilities. The successful candidate will play a key role in SOC architecture, SIEM engineering, threat detection and incident response, acting as a technical escalation point for the wider security team. This is an excellent opportunity to work within a large, complex global environment where cyber security is critical to business resilience. The Role Key responsibilities include: • Designing and maintaining SOC detection capabilities and SIEM engineering workflows • Creating and validating security detections, alerts and reporting use cases • Integrating security data sources and...
IR35 Status:
Unknown Status

CV-Library TS18, Preston-on-Tees, Stockton-on-Tees Contractor
CL
Mar 26, 2026  
Software Engineer
We are building a team of Software Engineers for a consultancy supporting a company in Portsmouth. Candidates will need active Security Clearance and to be a Sole British National Roles will be offered outside IR35 on an initial 6-12 month contract. Anticipated that it will be a hybrid working pattern (minimum 3 days onsite) Rates negotiable, circa £60-£70 ph Outside IR35. The Tasks: • Development of Software Design and UML Model for assigned tasks (candidate tasks below). • Verification and Integration Testing of developed software • Support to Test Events and Demonstrations Candidate development tasks may include: • Development of requirements, algorithms and implementation of autonomous UAV functions (e.g flight plans, low level flight) • Integration Machine Learning models into existing UAV C2 system • Integration of a UAV model into existing synthetic environment • Bug fixes following verification and integration testing Experience/Skills Required • Experience...
IR35 Status:
Outside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Mar 26, 2026  
Backend Software Engineer
Software Engineer - Active SC, Java, Microservices Up to £550 per day (Inside IR35) London / Remote 6 months My client is an instantly recognisable consultancy who require a strong Software Engineer with Active Security Clearance (SC) and with deep expertise in Java (Spring Boot) to join a large-scale, business‑critical microservices programme. Key Requirements: Proven experience working as a Java Software Engineer on large microservice architectures Active Security Clearance (SC) Strong capability building scalable RESTful APIs and backend services in Java (Spring Boot): Postgres (or other relational SQL databases) with solid understanding of schema design and SQL Docker: Confident containerising and deploying applications Test‑Driven Development (JUnit & Mockito or similar testing frameworks) CI/CD: Hands‑on experience with Jenkins or similar automated pipeline tooling Flexibility working in agile teams and collaborating closely with engineers, product, and design...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 26, 2026  
Contract Software Engineer
Contract Software Engineer (DV Cleared) 6 Months (Initially) Romsey OR Gloucester for On-site Work €(Apply online only) per day (Inside IR35) iO Associates is proudly partnering an R&D client, specialising in developing cutting-edge technology for our National Security. We are looking for a Software Engineer who holds a current DV clearance to join the team on an Initial 6 month basis (with a high likelihood of extension). The role itself will involve designing, developing and optimising OpenCPI components and application for SIGINT and RF Systems. Along with the additional tasks below: Integrate OpenCPI solutions onto FPGA-based and embedded SDR platforms. Support system architecture, trade studies, and technical design decisions. Ensure robust, scalable and reusable OpenCPI-based implementations.Key Responsibilities Involve: Engineering & Development Develop OpenCPI workers and containers in C/C++ and HDL (VHDL/Verilog where required). Integrate DSP chains...
IR35 Status:
Inside IR35

CV-Library Gloucester, Gloucestershire Contractor
CL
Mar 25, 2026  
System Monitoring & Observability Engineer (Prometheus / Grafana)
SRT Marine Systems plc (SRT) is a market leader in the domain of international marine surveillance technology and systems. We are a respected, established, and an ambitious multi-national company headquartered in the UK with a global customer base. The company has a worldwide impact in the marine sector by leading the next generation of maritime domain awareness technologies "MDA", products, and systems that significantly enhance security, safety, environmental protection, and sustainability. Our customers are global and range from the largest national coast guards to individual vessel owners. SRT is an exciting company where high-quality results are rewarded. We are ambitious and constantly seek to innovate in order to deliver better products and services to our customers. We strive to make SRT a rewarding and challenging place to work, where talented, hard-working individuals have the opportunity to make a real impact across the marine industry. Role overview of our System...
IR35 Status:
Unknown Status

CV-Library Cardiff, UK Contractor
CL
Mar 23, 2026  
Software Engineer
DV Cleared Software Engineer (DBA / Data-Focused) Contract: 12 months Location: Cheltenham (5 days per week onsite, occasional travel to Gloucester) Rate: £600 - £750 per day (Umbrella, Inside IR35) UK Eyes only Must hold live UKIC DV clearance used within the last 12 months About the Role An exciting opportunity has arisen for an experienced Software Engineer with a strong DBA background to support a growing national security programme based in Cheltenham. This role sits within a high-performing technical team delivering solutions that have real-world impact across the UK Government sector. You'll work on data-focused systems, contributing across the full software lifecycle while supporting and improving secure Oracle-based platforms and automation using Ansible. Key Responsibilities Design, develop, test, document and support software components within a secure system environment Provide accurate estimates for development effort from given specifications Work with a...
IR35 Status:
Inside IR35

CV-Library Cheltenham, Gloucestershire Contractor
CL
Mar 22, 2026  
Principal Firmware Engineer
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 or 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 / UVM Work with currentFPGA technologies from: Xilinx Intel (Altera) Microsemi (semiconductor manufacturer) Develop and integrate high-speed interfaces, including PCIe, DDR3, Ethernet and JESD Analyse system-level documentation to derive detailed firmware requirements Adopt a structured, methodical approach to...
IR35 Status:
Inside IR35

CV-Library Edinburgh, UK Contractor
CL
Mar 22, 2026  
Java Software Engineer II
Software Engineer II Hybrid: Manchester (1 day a week) Inside IR35: £500 Duration: 6 months Tech Stack: Java / Spring Boot, SQL Server, AWS, Kubernetes, CI/CD. Node.js/Python and SSIS experience is a bonus. A technology‑driven team is seeking an experienced Software Engineer II to support the design, build and operation of backend services within a financial data environment. This role is ideal for someone who values strong engineering practices, autonomy, and cross‑functional collaboration. You will help develop and operate backend systems that deliver accurate, timely financial data to critical enterprise processes. The role includes hands-on development, production support, and ensuring compliance with key regulatory frameworks such as SOX and GDPR/PII. Java / Spring Boot Python & Node.js Microsoft SQL Server, SQL optimisation SSIS (bonus) AWS Kubernetes, Docker CI/CD tooling Infrastructure as Code (TypeScript, AWS CDK) Exposure to Apache Spark is a plusIf this sounds...
IR35 Status:
Inside IR35

CV-Library Manchester, Greater Manchester Contractor
CL
Mar 22, 2026  
Data Engineer
Contract Data Engineer – AWS Ncounter is supporting a specialist consultancy delivering secure, cloud-native data platforms across Defence and public sector programmes. We are seeking an experienced SC Cleared Contract Data Engineer to join a delivery team building scalable, production-grade data services within highly secure environments. This is a hands-on engineering role with a strong emphasis on AWS data tooling. You will be responsible for designing, developing and optimising resilient data pipelines that support operational and analytical use cases across complex programmes. The focus is on clean engineering, performance, security and long-term maintainability. Key experience required: • Active SC Clearance • Deep expertise across AWS data services such as Glue, Lambda, S3, Redshift, EMR, Athena and Step Functions • Strong Python and SQL development capability • Proven experience designing and building ETL or ELT pipelines in cloud environments • Experience working with...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 21, 2026  
FPGA Engineer
FPGA Engineer - 6-Month Contract (Outside IR35) Location: Cambridge, UK (Office-based) Rate: £60 - £80 per hour We are seeking an experienced FPGA Engineer to join a pioneering technology consultancy in the defence and security sector. This role offers the opportunity to work on cutting-edge projects, developing and implementing FPGA-based solutions that have real-world impact. You will collaborate with multi-disciplinary teams on projects ranging from proof-of-concept prototypes through to working systems, covering the full product lifecycle from design to delivery. Key Responsibilities: Develop and implement FPGA firmware (VHDL/Verilog) using toolchains such as Vivado or Quartus Contribute to design, testing, and documentation of FPGA-based systems Support the creation of prototypes and working hardware for advanced technology projects Apply knowledge of DSP/system modelling, embedded software, or communications applications where relevant Collaborate with engineers and...
IR35 Status:
Outside IR35

CV-Library Cambridge, Cambridgeshire Contractor
CL
Mar 20, 2026  
Azure Cloud Engineer
Azure Cloud Engineer (SC Cleared) London (Hybrid) 6 Month Contract to £550/day-£600/day (Inside IR35) Azure Cloud Infrastructure Engineer needed with active SC Security Clearance, AZURE Terraform code. 6 Month Contract based in Central London (Hybrid). Start ASAP in March 2026. Hybrid Working - 2 days/week remote (WFH), and 3 days/week working on-site from the London office. A chance to work with a leading global IT and Digital transformation business specialising in Government projects: Experienced Azure Cloud Engineer required to support cloud transformation programme. Must have in-depth experienced in AZURE Terraform code, GitHub Actions, implementation of both CI/CD.                                                                                          Hands-on experience in Software Development. Experience implementing or maintaining a CI/CD pipeline using Github Actions, Terraform, and Azure. Good working knowledge of PowerShell, SQL of the installation and...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Mar 20, 2026  
Principal Systems Engineer
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 of radar trials (rig-based and flight trials). Key Responsibilities: Work with large datasets from rig and flight trials, and use analytical techniques to evaluate radar performance against requirements and raise Systems Problem Reports (SPR) for detailed investigation. Apply signal processing, image processing, and object classification techniques to extract actionable insights. Investigate system anomalies using real trial data, ensuring performance meets specifications. Work collaboratively with multidisciplinary teams to develop and prototype cutting-edge defence solutions. Contribute to System Verification & Validation (V&V) activities as part of the continuous...
IR35 Status:
Inside IR35

CV-Library Edinburgh, UK Contractor
CL
Mar 20, 2026  
C# / .net Software Engineer
C# / .net Software Engineer Milton Keynes - first few days for training then 1 site visit a month 6 Months Contract £550 per day We are looking for an experienced C# Software Engineer to join the team and support us on our journey in transforming our application landscape to provide a modern, cloud hosted finance platform. This exciting opportunity offers the chance for you to work for a fantastic brand and to help shape our digital future. About the role As a key part of the scrum team, you will help to shape the company's core products, working on green and brownfield solutions using the latest technologies. You will play an important role in the product lifecycle, contributing to design, from development through to delivery. About you We are looking for a good communicator and strong team player with skills aligned to our tech stack. We would expect you to have strong experience in most of the following: Tech Stack C# .Net Core Typescript React Web API Kubernetes /...
IR35 Status:
Unknown Status

CV-Library Milton Keynes, Buckinghamshire Contractor
CL
Mar 20, 2026  
Vehicle Efficiency Attribute Engineer
Expleo is seeking a technically strong and analytically minded Vehicle Efficiency Attribute Engineer to support one of our leading automotive clients in Warwickshire. This role offers the opportunity to work at the forefront of vehicle efficiency strategy and development, contributing to the delivery of future mobility solutions. You'll be responsible for strategic target setting, verification coordination, and cross-functional collaboration to ensure vehicle efficiency targets are met across programmes. Key Responsibilities: Conduct strategic target setting for vehicle efficiency, including benchmarking, customer data analysis, and legislative reviews. Coordinate and contribute to virtual verification and data analysis activities. Assess and negotiate target compatibility between efficiency attributes and energy node owners. Influence and define strategic technology roadmaps aligned with efficiency goals and customer trends. Support governance and risk/opportunity management...
IR35 Status:
Unknown Status

CV-Library Warwickshire, UK Contractor
CL
Mar 20, 2026  
Human Factors Engineer
Expleo is seeking a talented Physical Controls Human Factors Engineer to join our team on a contract basis, working onsite with our automotive customer in Gaydon. This is a fantastic opportunity to contribute to the development of intuitive and user-friendly vehicle interfaces, ensuring optimal driver experience and safety. Key Responsibilities Support the development, cascading, and ownership of Human Factors requirements for User Controls, including updates as appropriate Support the analysis of quality data relating to User Controls and use it to support requirement development and issue resolution Assist with Human Factors input into the development of new physical user interfaces, ensuring Human Factors requirements are met Support the timely completion of Human Factors assessments (such as Human Error, Workload) Completion of requirement testing and report writing Support the resolution of issues with stakeholders Support competitor benchmarking as well as attribute...
IR35 Status:
Unknown Status

CV-Library Warwickshire, UK Contractor
CL
Mar 19, 2026  
Senior Cloud Full Stack Developer
If you are a versatile and highly skilled Senior Cloud & Full Stack Engineer ready to work, support and advance this UK leading companies modern application ecosystem, then please, do read on! This role requires strong expertise across cloud infrastructure, backend microservices, frontend development, and legacy system support. The ideal candidate will possess comprehensive skills in all these areas, ensuring a well-rounded and robust contribution to our technology landscape. Duration: temporary contract for 3-6months or so This is a paid per hour PAYE temporary role Rate of Pay PH: £33-43ph plus holiday pay (circa £60-80,000 if salaried) Location: hybrid. Need to work in the office in Central Bedfordshire for meetings, reviews and handovers, which will be once a week or so. Hours: 35 hrs per week 9am-5pm (1 hr lunch) Days: Mon-Fri Benefits: - free parking - electric vehicle charge points - holiday pay accrual - wfh most of the time - pension after a qualifying period...
IR35 Status:
Unknown Status

CV-Library Houghton Regis, Central Bedfordshire Contractor
CL
Mar 19, 2026  
PowerBI Developer (Remote Contract)
BI Engineer / Power BI Developer — Contract Remote (Ireland based preferred) 6 months contract, multiple extensions expected Excellent daily rate on offer Overview We’re hiring a BI Engineer / Power BI Developer to support a global manufacturing group’s EU technology hub. The role focuses on improving existing reporting and automation solutions and supporting longer-term BI projects. The organisation is investing heavily in various digital systems and want to have the latest and greatest reporting services / capabilities functioning effectively. Responsibilities Resolve backlog items across BI and automation Improve performance and reliability of Power BI reports Refactor and improve Power Platform solutions Reduce technical debt in reporting and workflows Support cloud migration of reporting systems Assist with reporting architecture improvements Improve ERP data integration and automation Tech Stack: Power BI Power Apps Power Automate Microsoft data stack /...
IR35 Status:
Unknown Status

CV-Library United Kingdom Contractor
CL
Mar 06, 2026  
Embedded Ada Software Engineer
World Class Defence Organisation based in Bristol is currently looking to recruit 2x Embedded ADA Software Engineer subcontractors on an initial 12 month contract.  The role will likely be required to be onsite, but it can be worked on a 4-day week basis.   Essential - ADA, Background in safety critical software. Desirable - Linux, Doors, Dimensions, UML, Mascot etc.   Contract Duration: 12 Months initially and then ongoing. Hourly Rate: £68.00ph (Umbrella).   Overtime rate: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’   Embedded ADA Software Engineer Job Description: We work on technology that is at the forefront of European missile system design, delivering safe, secure, and reliable products to our customers. The System software department covers all aspects of command and control software (C2) for both land and maritime missile systems. We are expanding the Sea Viper and Sea Ceptor missile C2 team for the development of the next generation of...
IR35 Status:
Unknown Status

CV-Library Bristol, UK Contractor
CL
Feb 21, 2026  
Software Engineer
Software Engineer (Java) SC Clearance Required Certain Advantage are hiring for a Software Engineer based in Portsmouth. This role is on an initial 12-month contract and is required to be onsite 3 days a week.   Your responsibilities: Contribute across the full software development lifecycle, including design, development, testing, and deployment. Design software solutions using UML/SysML and contribute to technical architecture within a microservices environment. Develop high-quality Java applications using Spring Boot, Spring Framework and related technologies. Implement and maintain RESTful web services over HTTPS within distributed systems. Write and maintain automated tests, ensuring quality and reliability are built into the solution from the outset. Participate in Agile ceremonies including sprint planning, estimation, reviews and retrospectives. Collaborate closely with team members and wider stakeholders to design, implement and test new product features. Contribute...
IR35 Status:
Unknown Status

CV-Library Portsmouth, UK Contractor
CL
Feb 15, 2026  
Human Factors Engineer
Human Factors Engineer – Physical Controls Gaydon, Warwickshire (2–3 days on-site per week) 12-month contract Rate: Negotiable (DOE)  An exciting opportunity has arisen for a Human Factors Engineer to support the development of physical user controls within a leading automotive engineering environment. This role focuses on ensuring that human factors, ergonomics and usability principles are embedded throughout the development of physical user interfaces, working closely with engineering, UX and product teams. Key Responsibilities:  Support the development, cascading and ownership of Human Factors requirements for physical user controls Analyse quality and usage data to support requirement development and issue resolution Provide Human Factors input into the development of new physical user interfaces Support the timely completion of Human Factors assessments (e.g. human error, workload) Complete requirement testing, reporting and documentation Support issue resolution through...
IR35 Status:
Unknown Status

CV-Library Warwickshire, UK Contractor
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