1 to 25 of 137 Contract Software Engineer Jobs in the UK

CONTRACT SENIOR SOFTWARE ENGINEER - eDV CLEARED NEW CONTRACT JOB OPPORTUNITY AVAILABLE WITHIN A LEADING NATIONAL SECURITY COMPANY FOR A SENIOR SOFTWARE ENGINEER WITH eDV CLEARANCE Contract job opportunity for a Senior Software Engineer Globally leading defence/cyber security company £500 - £750 per day (inside and outside IR35 roles available) London based organisation in … an easily accessible location Contract Senior Software Engineer To apply please call or email WHO WE ARE? We are recruiting multiple contract Senior Software Engineers to work with various clients in London ranging from R&D companies, Multi-National Consultancies to SME's and product based companies. Due to the nature of the work these clients do … you must hold enhanced DV Security Clearance. WHAT WILL THE SENIOR SOFTWARE ENGINEER BE DOING? As a Senior Software Engineer, you will work with an experienced agile team to design and deliver packages of bespoke work, work development teams and liaise with customers. You will work through the entire software development life cycle from requirements More ❯

Software Engineer Newcastle 12 Month Contract (Inside IR35) From £41 per hour *Must be eligible for SC Clearance* Belcan is excited to be looking for a Software Engineer! Belcan are looking for a Software Engineer to join our clients team in Newcastle who specialise in Aerospace manufacturing and innovation. They are a forward-thinking … Agile Scrum team, working on innovative Geospatial software, using the latest cloud-based technologies. The ideal Software Engineer will be involved in every stage of the software development lifecycle, from initial design through development, testing, and deployment, delivering robust, scalable cloud-based services. The role is based at our client's office in Newcastle. Flexible working … successful candidate is expected to be in the office 3 days a week, with the opportunity to work 2 days from home. What You'll Be Doing As a Software Engineer, these will be some of your key responsibilities, and day to day duties: Develop high-quality, readable, scalable and easily maintained code, using Java and related technologies More ❯

Backend Software Engineer UK Remote 6 Month Contract A fantastic contract role has opened up for a highly skilled Backend Software Engineer with strong expertise in Go. This is an exciting chance to join a leading technology company known for its high engineering standards and innovative approach to distributed systems. In this position, the Backend Software Engineer will play a central role in building and scaling mission-critical, data-heavy applications. You'll be involved across the full engineering lifecycle - from system design through to development and delivery - taking ownership of solutions that drive real impact. Working closely with an Engineering Manager and collaborating with cross-functional teams, the Backend Software Engineer … as AWS, Kubernetes, Docker, and Kafka. You'll also focus on improving performance, reliability, and scalability, contributing to design discussions, code reviews, and knowledge sharing across the team. Backend Software Engineer - Key Skills & Experience: Strong background in backend software engineering, with significant commercial experience Advanced proficiency in Go (Golang) and hands-on expertise with AWS, Kubernetes, and More ❯

Embedded Software Engineer (ADA) 6 month contract Based in Stevenage Offering £70ph Inside IR35 Do you have experience using ADA? Do you have experience in Embedded Software? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Embedded Software Engineer (ADA), 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: Developing Real Time Embedded Software in ADA on a power PC Testing the embedded Software Producing test requirements & test scripts for Unit, Subsystem, and System level testing on both host and target platforms Running tests, analysing results, and using target test facilities such as debuggers, probes, logic analysers, and oscilloscopes Documenting the Software Your skillset may include: Experience developing in the ADA More ❯

Senior Software Engineer (MongoDB/Django) 6-Month Contract Outside IR35 Fully Remote About the Role Were looking for a Senior Software Engineer with deep expertise in MongoDB to help solve complex integration challenges between Django and MongoEngine within a live production environment. This is a hands-on engineering role, suited to someone who can move … on effective MongoDB usage patterns and integration strategies. Help evolve internal tooling, libraries, and data access layers to streamline development. What Were Looking For Proven experience as a Senior Software Engineer with a strong focus on backend systems and database design. Advanced MongoDB knowledge schema design, aggregation pipelines, performance tuning, replication, and indexing strategies. Strong experience with Django More ❯

Embedded Software Engineer (C) 6 month contract Based in Stevenage Offering £68ph Inside IR35 Do you have experience using C? Do you have experience in Embedded Software? Do you want to work with an industry-leading company? If your answer to these is yes, then this could be the role for you! As the Embedded Software Engineer (C), 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: Developing, integrating, and testing embedded Software … using target test facilities such as debuggers, probes, logic analysers, and oscilloscopes Documentation and Design work in UML Your skillset may include: Experience with C Programming Language Experience testing software products for ARM based multi-core processing platforms Experience with communications protocols (e.g. SPI, UART, Ethernet, PCI-Express) Experience with DOORS Experience with test tools and techniques in both More ❯

Contract Software Engineer - Enhanced DV Cleared New Contract Opportunity for a Software Engineer with Data experience in London with eDV Clearance New contract opportunity to work on operational projects across the National Security domain Enhanced DV Clearance required for high-side IT access London based (on site, minimum 4 days per week) Daily rate up to … To apply, get in touch: dominic./About Join a leading consultancy delivering innovative and secure technology solutions across highly operational national security projects . We're seeking a Software Engineer to support and enhance critical systems within a dynamic, high-performing team. You'll work across development and DevOps activities, supporting complex environments that underpin key national More ❯

A well-established business is looking for an accomplished Software Engineer with expert Python skills to join its organisation. Please note, this role is Outside IR35. The company embraces hybrid and flexible working so you will be able to work fully remotely, with occasional visits (perhaps once per month) to the office in London. Web, software, and … AI-enabled technology are fundamental to the success of the business so you must have proven experience of developing great software in Python and an interest in adopting cutting-edge technology. In order to be suitable for this Lead Software Engineer role you must be an accomplished developer with a passion for technology and desire to mentor … role of significant responsibility, you will be both a Lead Developer and guide 2 in-house developers and an offshore team. You will act as a technical authority on software written in Python, lead architectural discussions, code, ensure technical quality and deliver complex software projects. You will also partner with key stakeholders to drive forward technological innovation and More ❯

A well-established business is looking for an accomplished Software Engineer with expert Python skills to join its organisation. Please note, this role is Outside IR35. The company embraces hybrid and flexible working so you will be able to work fully remotely, with occasional visits (perhaps once per month) to the office in London. Web, software, and … AI-enabled technology are fundamental to the success of the business so you must have proven experience of developing great software in Python and an interest in adopting cutting-edge technology. In order to be suitable for this Lead Software Engineer role you must be an accomplished developer with a passion for technology and desire to mentor … role of significant responsibility, you will be both a Lead Developer and guide 2 in-house developers and an offshore team. You will act as a technical authority on software written in Python, lead architectural discussions, code, ensure technical quality and deliver complex software projects. You will also partner with key stakeholders to drive forward technological innovation and More ❯

Job Title: Contract Software Engineer – Commissioning (Siemens Platform) Salary: Day rate circa £55 per hour Location: Tadcaster, North Yorkshire Join a leading engineering and technical company for an exciting short-term project! We are looking for two contract Software Engineers with expertise in Siemens platforms to commission advanced software solutions. This hands-on role involves working … on-site and following a 1 pm to 9 pm shift, five days a week, with potential for weekend work as deadlines approach. Skills required for Contract Software Engineer: Siemens TIA V19 including Safety protocols Siemens WinCC Unified HMI Experience with Motion/Servo Drives PackML proficiency Keyence Vision Systems experience (preferred) Familiarity with Staubli Robots (beneficial but … not essential) The Contract Software Engineer will benefit from: Engaging in a cutting-edge commissioning project A collaborative work environment with potential for future opportunities Competitive contract rates If you are interested in this role and feel that you have the right skills, please click apply at the bottom of this advert. For further details, contact Andrew McFarlane More ❯

Carbon60 is currently looking for a Software Engineer to join a client of ours based in Newcastle. Our client is pronoun in the aviation, defence, and space sectors. They are looking for a Software Engineer to join their team on a contractual basis. This role will be 12 months, working 60% onsite. As a Software Engineer you will be responsible for developing robust and efficient code using Java and related technologies. Your primary duties will include: Developing reusable patterns and encouraging innovation to enhance team velocity Contributing to quality assurance by writing unit and automated tests Conducting design and code reviews to ensure adherence to coding best practices, unit testing, security, and scalability More ❯

Carbon60 is currently looking for a Software Engineer to join a client of ours based in Newcastle. Our client is pronoun in the aviation, defence, and space sectors. They are looking for a Software Engineer to join their team on a contractual basis. This role will be 12 months, working 60% onsite. As a Software Engineer you will be responsible for developing robust and efficient code using Java and related technologies. Your primary duties will include: * Developing reusable patterns and encouraging innovation to enhance team velocity * Contributing to quality assurance by writing unit and automated tests * Conducting design and code reviews to ensure adherence to coding best practices, unit testing, security, and scalability More ❯

Software Engineer Newcastle, UK 12-month contract initially up to £55 per hour Inside IR35 Active SC Clearance required iO Associates is looking for a Software Engineer to join a global aerospace leader specializing in commercial and military aircraft, helicopters, defence, and space sectors. This role offers a chance to contribute to innovative projects within a … dynamic team, shaping the future of aviation and space systems. You'll play a key role within our Agile Scrum team, developing cutting-edge geospatial software and delivering scalable, cloud-based solutions across the full software development lifecycle. Skills & Experience: Proven Java development experience with clean, scalable code Strong background in Cloud Services development (AWS/Azure/ More ❯

MERITUS Talent are working with Europe's largest weapons systems manufacturer and integrator for the recruitment of a C++ Software Engineer to join their Bristol office on a contract basis. The role requires an active SC Clearance, and candidates must be a sole British national C++ Software Engineer - Bristol - Contract - 6 to 12 Months - £65 per … Responsibilities: This is a very hands-on role and requires the continued design and development of Command and Control architectures, and the instantiations for future products. Perfect for a Software Engineer who is proactive and takes the initiative. Skillset/experience required: A strong background in software engineering, its realisation and system wide impact. Experience of working … in C++ Collaborative, open approach to development and have the ability to work well in a team and maintain momentum during development. Experience of working across the entire software development process from engaging with requirement authorities to automated target integration and proving, supported with effective documentation Experience of new tools, techniques and approaches that might enable us to evolve More ❯

MERITUS Talent are working with Europe's largest weapons systems manufacturer and integrator for the recruitment of a C++ Software Engineer to join their Bristol office on a contract basis. The role requires an active SC Clearance, and candidates must be a sole British national C++ Software Engineer - Bristol - Contract - 6 to 12 Months - 65 per … Responsibilities: This is a very hands-on role and requires the continued design and development of Command and Control architectures, and the instantiations for future products. Perfect for a Software Engineer who is proactive and takes the initiative. Skillset/experience required: A strong background in software engineering, its realisation and system wide impact. Experience of working … in C++ Collaborative, open approach to development and have the ability to work well in a team and maintain momentum during development. Experience of working across the entire software development process from engaging with requirement authorities to automated target integration and proving, supported with effective documentation Experience of new tools, techniques and approaches that might enable us to evolve More ❯

MERITUS Talent are working with Europe's largest weapons systems manufacturer and integrator for the recruitment of a C++ Software Engineer to join their Bristol office on a contract basis. The role requires an active SC Clearance, and candidates must be a sole British national C++ Software Engineer - Bristol - Contract - 6 to 12 Months - £65 per … Responsibilities: This is a very hands-on role and requires the continued design and development of Command and Control architectures, and the instantiations for future products. Perfect for a Software Engineer who is proactive and takes the initiative. Skillset/experience required: A strong background in software engineering, its realisation and system wide impact. Experience of working … in C++ Collaborative, open approach to development and have the ability to work well in a team and maintain momentum during development. Experience of working across the entire software development process from engaging with requirement authorities to automated target integration and proving, supported with effective documentation Experience of new tools, techniques and approaches that might enable us to evolve More ❯

MERITUS Talent are working with Europe's largest weapons systems manufacturer and integrator for the recruitment of a C++ Software Engineer to join their Bristol office on a contract basis. The role requires an active SC Clearance, and candidates must be a sole British national C++ Software Engineer - Bristol - Contract - 6 to 12 Months - £65 per … Responsibilities: This is a very hands-on role and requires the continued design and development of Command and Control architectures, and the instantiations for future products. Perfect for a Software Engineer who is proactive and takes the initiative. Skillset/experience required: A strong background in software engineering, its realisation and system wide impact. Experience of working … in C++ Collaborative, open approach to development and have the ability to work well in a team and maintain momentum during development. Experience of working across the entire software development process from engaging with requirement authorities to automated target integration and proving, supported with effective documentation Experience of new tools, techniques and approaches that might enable us to evolve More ❯

Contract Software Engineer/Lead Developer - Expert The Role We're looking for an exceptional Software Engineer/Back-End Developer - a true "super dev" - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives … based. Rate: circa 680 per day (inside IR35) Duration: 6 months initially Start: ASAP September 2025 Key Responsibilities Lead the back-end development of a new platform. Apply advanced software engineering/development and design patterns Translate abstract concepts into working, production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data More ❯

Contract Software Engineer/Lead Developer - Expert The Role We're looking for an exceptional Software Engineer/Back-End Developer - a true 'super dev' - with proven Design Patterns expertise and a deep understanding of software engineering/development. This is a high-level contract role, suitable for someone operating at a Principal Engineer or Lead Engineer level. You'll join a small, highly skilled team building a new platform driven by innovative algorithms, clever data structures, and design patterns-based architecture. Working closely with the Head of Architecture, you'll take abstract concepts and requirements, distil them, and deliver high-quality, elegant solutions. This is a role for someone who thrives … based. Rate: circa £680 per day (inside IR35) Duration: 6 months initially Start: ASAP September 2025 Key Responsibilities Lead the back-end development of a new platform. Apply advanced software engineering/development and design patterns Translate abstract concepts into working, production-ready solutions. Employ Test-Driven Development (TDD) and SOLID principles. Build robust, scalable algorithms and efficient data More ❯

Job Title: Software Engineer/Senior Software Engineers – Linux, C++, Networking, Python (All Levels) Location: Bristol - Hybrid Type: Full-time, 12 month FTC Salary: Competitive, commensurate with experience Whether you have 18 months or 5+ years of relevant experience, if you’re passionate about building high-performance systems in a dynamic environment, we’d love to hear … from you. About the Role We are partnering with a well-established high-tech scale-up to find experienced Software Engineers to join their dynamic and innovative team. This is a hands-on engineering role where you’ll be instrumental in the design, development, and maintenance of advanced systems and associated platforms. You’ll work across planned software feature development, real-time troubleshooting, and complex systems integration. This is a great opportunity to deepen your skills in high-performance software and modern infrastructure while working in a collaborative, fast-paced environment. Key Responsibilities Develop, enhance, and maintain robust software solutions for mission-critical systems. Design and implement multithreaded C++ applications for data processing. Script tools More ❯

The banks expertise and services span across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Software Engineer (AI Prompts) for a 6 month contract based in either the bank's London or Edinburgh office on a remote first working model. Purpose of the role … The Software Engineer (AI Prompts) will help build and support intelligent automation use cases end-to-end and will be pivotal in engaging with business stakeholders to understanding requirements, crafting effective prompts and ensuring governance, quality and maintainability throughout the life cycle. Responsibilities of the Software Engineer (AI Prompts): Design and optimise prompts for AI language More ❯

Software Engineer Special Purpose Machinery Milton Keynes (On-site) 12-month contract Outside IR35 available We re supporting a special purpose machine builder in Milton Keynes with the appointment of three Software Engineers for a long-term contract assignment. This is an opportunity to join a growing engineering team delivering complex automation projects for high-precision machinery. … IR35). Location: On-site in Milton Keynes, Monday to Thursday. Remote: Fridays are remote working. Duration: Initial 12-month contract with potential extension. If you're an experienced software engineer looking for a technically engaging contract in the automation or machinery sector, this could be a great fit. More ❯

Software Engineer Newcastle, UK 12-month contract initially up to £55 per hour Inside IR35 Active SC Clearance required iO Associates is looking for a Software Engineer to join a global aerospace leader specializing in commercial and military aircraft, helicopters, defence, and space sectors click apply for full job details More ❯

Full Stack Software Engineer Full Stack Software Engineer The location of the role is London (hybrid working) . The duration of the contract is 6 months . The pay rate on offer is £750 - £880 per day (via Umbrella - inside IR35) . Key responsibilities Front end implementation for a React application Visualizing and interacting with scientific … data and workflow progression Integration of AI/ML components with frontend, backend, data and compute infrastructure Responsible for high quality software implementations according to best practices, including automated test suites and documentation Develop, measure, and monitor key metrics for all tools and services and consistently seek to iterate on and improve them Participate in code reviews, continuously improving … staff and data engineers in the team and across allied teams, to build an end-to-end pipeline consuming other data products Basic qualifications: 5+ years' experience with frontend software development (e.g. React) Demonstrated experience of Python development (e.g. using FastAPI) Bachelor's degree in a relevant field (including computational, numerate or life sciences), or equivalent experience Cloud experience More ❯

World Class Defence Organisation based in Stevenage is currently looking to recruit an Embedded C Software Engineer subcontractor on an initial 6 month contract. This role can be worked on a 4 day week basis. Hourly Rate: £68.00ph (Umbrella). Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at ‘time and a … . Duration: 6 Months with very likely extension. Contracts are often ongoing and long-term thereafter. IR35 status: Inside IR35 (Umbrella) Interview process: One stage video interview Embedded C Software Engineer Job Description: Join a growing Software team in Stevenage, working as part of a dynamic team to develop, test and deliver innovative solutions by exploiting a … wide portfolio of software technologies. You will work as part of a small team and be empowered to work individually with little supervision.You will need to be able to work independently and be self driven whilst providing some technical leadership. You will need to be very proactive and comfortable working with teams outside of the SW department, and be More ❯