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Contractor 26
Inside IR35 software developer

26 software developer jobs found

CL
Jul 11, 2026  
Python Developer
Python / Azure Developer Rate: £550 per day (Inside IR35) Contract: Initial 6-month contract Start: ASAP Location: Remote with occasional travel (approximately 1 day per month alternating between Leeds and London) The Role We are looking for an experienced Python / Azure Developer to join a major public sector digital programme. You'll be responsible for designing, developing and supporting cloud-native applications and data solutions within a highly regulated environment. This role requires previous experience delivering solutions within the NHS, wider healthcare sector or UK Government and offers the opportunity to contribute to large-scale digital transformation initiatives. Key Responsibilities Design, develop and maintain applications using Python and Microsoft Azure Build and support cloud-native services, APIs and data processing solutions Develop scalable and secure solutions following public sector best practices Work closely with architects, product teams,...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
CL
Jul 09, 2026  
Backend Java Developer - SC Cleared
Backend Java Developer + 6 month initial contrac+t + Fully remote - occasional office visit + SC Cleared + £530 per day Inside IR35 Key Skills: + Spring Framework + Docker/Kubernetes + SC Cleared Java Software Engineer We are looking for a skilled Java Software Engineer to join our development team and help build high-quality, scalable applications. Key Skills & Experience: Strong commercial experience with Java development. Hands-on experience with the Spring Framework (or equivalent enterprise frameworks). Solid understanding of software design patterns and the ability to apply them appropriately. Excellent knowledge of modern software development processes and best practices. Experience with containerisation technologies, including Docker and/or Kubernetes. Proven experience implementing and working within Continuous Integration (CI) and Continuous Delivery (CD) environments. Passion for writing clean, maintainable, and high-quality code, with experience using...
IR35 Status:
Inside IR35

CV-Library Croydon, London Contractor
CL
Jul 04, 2026  
D365 F&O Developer
D365 F&O Developer Rate: £465/day (Inside IR35) Duration: 6 months Work Model: Hybrid (visit to office once every week) to begin with Location: Windsor We are seeking an experienced D365 F&O Developer to join a dynamic team delivering large-scale ERP solutions. This is a remote role, requiring to visit the Windsor office once every week only at the beginning of the project. Key Responsibilities: * Analyse, design, and enhance cloud-based software solutions in Billing, Payment Collection, and Finance. * Write and debug code using X++, .NET, and SQL technologies. * Engage with the latest Microsoft preview releases, including Dual Write and RSAT. * Lead technical deliverables within client-facing projects and ensure quality and traceability. * Collaborate with Solution Architects and stakeholders to validate designs. Key Skills: * Proficient in X++ for D365 Finance & Operations * Strong SQL knowledge * Full lifecycle D365 F&O...
IR35 Status:
Inside IR35

CV-Library SL4, Eton Wick, Royal Borough of Windsor and Maidenhead Contractor
CL
Apr 16, 2026  
DevSecOps Consultant
DevSecOps Consultant * Sheffield (3 days per week onsite) * Inside IR35 We're partnering with a leading financial services client to appoint a DevSecOps Consultant to drive secure engineering practices across large-scale, cloud-based platforms. This role is ideal for someone who has come from a hands-on DevSecOps Engineering background and has since transitioned into architecture/design and advisory, while still retaining strong technical depth. Key Responsibilities: * Define and implement secure architecture patterns across engineering platforms (CI/CD, build systems, runtime environments) * Conduct security assessments, threat modelling, and gap analysis across platforms and pipelines * Develop and embed DevSecOps best practices, including secure pipeline design and automated controls * Establish and enforce security baselines using policy-as-code * Build and deliver security roadmaps, prioritising risk and regulatory requirements * Partner with engineering and...
IR35 Status:
Inside IR35

CV-Library S1, Orchard Square, Sheffield Contractor
CL
Jul 11, 2026  
Electrical Building Services Engineer
Techniche Global are supporting a major global engineering, design consultancy to appoint an Electrical Building Services Engineer. This role will encompass a multi-sector experience, but expertise from working within the Commercial, Healthcare, Residential, Blue Light, Heritage, Education or Rail sectors might be a benefit. The opportunity will require candidates to be client-facing as well as being involved in the day-to-day design of projects. It is an exciting opportunity for a design engineer to further develop their career within a leading building design consultancy.    Rate:                    up to 55p/ hr UMB (inside IR35) Location:             Cardiff or Swansea - hybrid (3 days onsite/ 2 days WFH) Duration:             6 months initially with the potential to extend Working Hours:  37.5 hours per week Requirements: Eligible for SC Clearance (sole British, dual national or ILR visa holder who has worked and lived in the UK for the past 5 years)...
IR35 Status:
Inside IR35

CV-Library Cardiff, UK Contractor
CL
Jul 11, 2026  
Senior Procurement Manager
Senior Procurement Manager - IT / Digital Contract Length: 6 months Location: Warwick or Wokingham (1-2 days on site) Pay Rate: £750 per day via umbrella (Inside IR35) Lead high-value technology procurement at scale - shaping strategy, influencing CIO-level decisions, and delivering real impact from day one. About the Opportunity This is a senior interim leadership role within a highly regulated, nationally significant organisation operating at the forefront of digital and infrastructure transformation. You'll take ownership of IT and digital procurement across a complex, high-value environment - covering software, cloud, telecoms, and critical infrastructure technologies. Working closely with the CIO and senior leadership team, you'll play a key role in enabling large-scale digital initiatives through commercially sound, compliant sourcing strategies. This is a visible, business-critical position where your expertise will directly influence major investment decisions and...
IR35 Status:
Inside IR35

CV-Library Wokingham, Berkshire Contractor
CL
Jul 11, 2026  
ITEA System Engineer
Copello is recruiting for a ITEA Systems Engineer on a contract basis for a defence organisation in Buckinghamshire on a 6 month contract. The Systems Engineer is responsible for supporting the integration, testing, verification, and acceptance of airborne radio communication systems, with a strong emphasis on hands-on RF testing and system verification activities. Key Responsibilities * Lead physical and functional integration, verification, and acceptance activities for airborne radio communication systems. * Develop functional test procedures at subsystem and system level for radio communication systems. * Execute testing in accordance with approved test procedures and continuously improve procedures to increase efficiency and effectiveness. * Maintain a clear and organised view of test progress, risks, issues, and dependencies. * Operate RF laboratory test equipment, including signal generators, spectrum analysers, oscilloscopes, noise sources, and associated...
IR35 Status:
Inside IR35

CV-Library High Wycombe, Buckinghamshire Contractor
CL
Jul 10, 2026  
Senior Drainage Engineer
Senior Drainage Engineer Contract - Inside IR35 Rate: £400.00 - £450.00 per day (Umbrella PAYE) Length: 6 Month Initial Contract Hours: 37.5 Per Week Locations: · Speke, Liverpool · Wymondham, Norfolk Arrangement: Hybrid Working - Typically 2-3 Days Per Week in the Office Driving Licence Required: Yes (for project/site travel, mileage claimable) Are you an experienced drainage design engineer looking for your next contract opportunity? This role is suited to a Senior Drainage Engineer with strong technical expertise in drainage and SuDS design, who enjoys taking ownership of design delivery across infrastructure projects. You will be working on a variety of civil engineering schemes, contributing to drainage strategy development, detailed design, and coordination with wider multidisciplinary teams. The position requires someone confident in delivering high-quality drainage solutions from concept through to detailed design, with the ability to manage technical outputs...
IR35 Status:
Inside IR35

CV-Library Speke, Liverpool, UK Contractor
CL
Jul 09, 2026  
Principal Bridge Engineer
Principal Bridge Engineer Location: Leeds (Hybrid Working Available) Contract: 12 Months +  Hours: 40 Hours per Week Rate: £55.00 - £65.00 per hour Umbrella (Inside IR35) Overview We are seeking an experienced Principal Bridge Engineer to provide technical leadership and deliver bridge and structural engineering projects across a range of infrastructure programmes. Working within a multidisciplinary environment, you will be accountable for the quality, programme delivery, and technical oversight of defined work packages, ensuring successful project outcomes for clients and stakeholders. This role is ideal for an experienced Senior or Principal Engineer with a strong background in bridge design, assessment, inspection, and asset management who is looking to play a leading role in the delivery of complex infrastructure projects. Role Summary Experienced Senior / Principal Engineer providing technical leadership to deliver defined packages of bridge and structural...
IR35 Status:
Inside IR35

CV-Library Leeds, UK Contractor
CL
Jul 09, 2026  
Systems Engineer
On behalf of our client, we are seeking to recruit a Systems Engineer on an initial 6 -month contract. As the Systems Engineer will join a team who is responsible for the satellite communication solutions which include antenna equipment and management software. In this role you will Support the Systems Engineering process, culture, competency and discipline, on day-to-day business activities, enabled by adequate Methods & Tools (M&T) products and services. Role: Systems Engineer Pay: £60 per day Via Umbrella Location: Portsmouth Contract: Monday- Friday, 37 Hours per week, 6 Months contract IR35 Status: Inside Security Clearance: Security Clearance required on submission, UK eyes only Essential Responsibilities Identify the stakeholder for the solution to be developed and capture their needs and expectations. Identify boundary of the solution to be developed. Elicit and validate requirements whilst considering the complete system lifecycle. Design and define...
IR35 Status:
Inside IR35

CV-Library Portsmouth, Hampshire Contractor
CL
Jul 09, 2026  
Principal CE&I Protection Engineer -Nuclear
Principal CE&I Protection Engineer - Hybrid (Sellafield Project) Location: Warrington - 1 day per week on-site, 4 days WFH (with occasional site visits) £60-67/hour Inside IR35 Project: Sellafield Electrical Distribution Network Upgrade - Infrastructure Strategic Alliance The Opportunity: Join the CE&I design team delivering power systems and protection engineering for a high-profile Sellafield project. You'll play a key role in shaping the Electrical Distribution Network Upgrade through cutting-edge modelling, fault analysis, and protection system design. Key Responsibilities: Develop and maintain the project's working ETAP model Produce and review fault calculations Support protection and control system design for 11kV & 400V networks Collaborate with multidisciplinary teams to deliver high-quality designs Essential Experience: Strong knowledge of BS EN 60909 Fault Calculations Skilled in power distribution modelling software Hands-on experience with...
IR35 Status:
Inside IR35

CV-Library Warrington, Cheshire Contractor
CL
Jul 09, 2026  
Principal Bridge Engineer
Principal Bridge Engineer Location: Manchester (Hybrid Working Available) Contract: 12 Months +  Hours: 40 Hours per Week Rate: £55.00 - £65.00 per hour Umbrella (Inside IR35) Overview We are seeking an experienced Principal Bridge Engineer to provide technical leadership and deliver bridge and structural engineering projects across a range of infrastructure programmes. Working within a multidisciplinary environment, you will be accountable for the quality, programme delivery, and technical oversight of defined work packages, ensuring successful project outcomes for clients and stakeholders. This role is ideal for an experienced Senior or Principal Engineer with a strong background in bridge design, assessment, inspection, and asset management who is looking to play a leading role in the delivery of complex infrastructure projects. Role Summary Experienced Senior / Principal Engineer providing technical leadership to deliver defined packages of bridge and structural...
IR35 Status:
Inside IR35

CV-Library Manchester, UK Contractor
CL
Jul 09, 2026  
Aircraft Maintenance Administrator
Aircraft Maintenance Administrator 6 month contract Based in Carterton Offering £29.07ph Inside IR35 Do you have experience of data entry software and record keeping? Do you have in aircraft maintenance or aviation data management? Do you want to work with an industry-leading company? If your answers are yes to these, then this could be the role for you! As the Aircraft Maintenance Administrator, you will be working alongside a market-leading Defence and Aerospace company who are constantly growing and developing. They are always looking to bring on new talents such as yourself and further develop your skills to enable you to grow within the company and industry! You will be involved in: Create component assets and link associated airworthiness data Accurately enter and update maintenance data into the digital system Review and verify maintenance records for completeness and accuracy Coordinate with maintenance technicians to ensure timely data entry Generate and...
IR35 Status:
Inside IR35

CV-Library Carterton, Oxfordshire Contractor
CL
Jul 08, 2026  
C / C++ Software Engineer
World Class Defence Organisation based in Stevenage is currently looking to recruit 2x Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: Our ever-evolving team powers the business across Europe and brings the next generation of defence solutions to life. Together we experiment, innovate and create across the full product lifecycle. And, in a collaborative and close-knit culture, we support...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 08, 2026  
Embedded Software Engineer
World Class Defence Organisation based in Stevenage and Bolton is currently looking to recruit 2x Embedded Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage or Bolton (depending on your preference) Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: We supply a full range of hard real time software solutions for the next generation of missile and defence solutions. This unique and exciting opportunity will allow you to develop technical...
IR35 Status:
Inside IR35

CV-Library Stevenage, UK Contractor
CL
Jul 08, 2026  
Embedded Software Engineer
World Class Defence Organisation based in Stevenage and Bolton is currently looking to recruit 2x Embedded Software Engineer subcontractors on an initial 12 month contract, with very likely extension.  The role will be onsite 4 days per week.  A 4 day working week is OK (Monday to Thursday).   Rate: £65.00 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a quarter’ Location: Stevenage or Bolton (depending on your preference) Hybrid / Remote working: The role will be onsite 4 days per week. A 4 day working week is OK (Monday to Thursday).  Duration: 12 Months with very likely extension. Contracts are often ongoing and long-term thereafter.  IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview   Job Description: We supply a full range of hard real time software solutions for the next generation of missile and defence solutions. This unique and exciting opportunity will allow you to develop technical...
IR35 Status:
Inside IR35

CV-Library Bolton, UK Contractor
CL
Jul 08, 2026  
Global Marketing Procurement Manager
The Global Marketing Procurement Manager will be responsible for managing procurement activities and supplier relationships within the sector. This temporary role is based in North West London and requires expertise in media and market insights procurement. Client Details This organisation is a well-established, global organisation. They are known for their commitment to excellence in procurement and supply chain operations, providing innovative solutions to meet market demands. Description As Global Marketing Procurement Manager, duties will include, however, not be limited to: Develop and execute procurement strategies for media and market insights categories. Manage supplier relationships to ensure optimal value, quality, and service delivery. Conduct market analysis to identify cost-saving opportunities and drive innovation. Negotiate contracts and manage supplier agreements in line with company policies. Collaborate with internal stakeholders to align procurement...
IR35 Status:
Inside IR35

CV-Library North West London, London Contractor
CL
Jul 06, 2026  
Software Engineer C C
Software Engineer JOB LOCATION: Stevenage SECURITY CLEARANCE LEVEL: SC to Start DURATION: 12+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) RATE: £ 65.00 Per hr on Umbrella (Inside IR35) Essential Skillset & Tools * Previous software engineering experience in the development of test solutions * Strong ability to write software in C / C++; scripting languages would be an advantage to our future direction. * Previous experience working in an agile development team. * A good understanding of automation, continuous integration * Knowledge of electronics measurement and debug techniques using equipment such as oscilloscopes and spectrum analysers Overview: * Technology matters more at MBDA. Our ever-evolving team powers the business across Europe and brings the next generation of defence solutions to life. Together we experiment, innovate and create across the full product lifecycle. And, in a collaborative and...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 06, 2026  
Software Engineer C, C++ / ADA
Software Engineer JOB LOCATION: Stevenage & Bolton SECURITY CLEARANCE LEVEL: SC to Start DURATION: 6+ Months (Extension Possible) WORK PATTERN: Full Time ONSITE (Compressed Option Available) RATE: £ 70.00 Per hr on Umbrella (Inside IR35) TARGET INDUSTRIES AND COMPANIES. Is Defence a must? If not what industries can be considered Open to all industries where skillset is apparent; Def/Aero would be ideal however. Essential Skillset & Tools * C/C++ EXPERIENCE (ADA WOULD BE A DESIRABLE ON TOP OF THIS, BUT NOT ESSENTIAL) * An awareness of developing and deploying software on real-time Operating Systems, Risc-V and ARM-based processing platforms. * Excellent analytical and design ability, including review and critical analysis. * Knowledge of modern software development practices Overview: * The growing workload within MBDA UK has created an exciting opportunity within the Embedded Software team . * We supply a full range of hard real time software...
IR35 Status:
Inside IR35

CV-Library Stevenage, Hertfordshire Contractor
CL
Jul 05, 2026  
Lead Software Engineer / Senior Software Engineer
Lead Software Engineer / Senior Software Engineer (Python & Django) Contract Length: 12 Months Rate: Up to £750 per day (Umbrella) IR35 Status: Inside IR35 Clearance Required: Active SC Clearance Working Pattern: Hybrid – 2 days per week onsite Locations London Manchester Birmingham Cardiff Darlington The Opportunity We are seeking an experienced Lead Software Engineer / Senior Software Engineer with strong Python and Django expertise to join a major digital transformation programme operating within a secure and highly regulated environment. This is an exciting opportunity to contribute to the design, development, and delivery of secure, scalable digital services supporting business-critical systems. Working within a modern agile delivery environment, you will play a key role in shaping technical solutions, leading engineering activities, and collaborating across multidisciplinary teams. The successful candidate will be a hands-on technical leader with a passion...
IR35 Status:
Inside IR35

CV-Library London, UK Contractor
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