1 to 25 of 180 Contract Software Engineering Jobs

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 … 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 … structures. Collaborate with other engineers, mentoring and sharing knowledge. Produce maintainable, clean code based on the "less is more" principle. Essential Skills & Experience Expert in TypeScript or a similar software development language , with strong back-end development experience. Extensive experience in applying well-known software design patterns. Proven ability to work independently with minimal guidance. Advanced algorithmic approach More ❯

Principal Technical Architect Software Engineering background £(Apply online only) per day, Outside I35 12 Month Contract Fully Remote (Must be UK based) Our exclusive Consulting partner urgently requires the services of a Principal/Lead Technical Architect on a Contract basis, to help deliver a high-profile project for a Government customer. We're looking for a highly … experienced Technical Architect with a strong Software Engineering background, and strong experience working on Public Sector projects. Skills & Experience for Principal Technical Architect: An expert-level Principal Technical Architect with a strong software engineering background who can define intentional architecture across complex, multi-programme environments. Must be capable of operating at a strategic, high-level while … Skills: Architecture Experience: Proven experience in defining and assuring architecture, specifically focusing on Capability Level Architecture for core business areas such as Order Management, Activity Management, and Application Processing. Software Engineering Foundation: Deep technical fluency gained from hands-on software development, ideally with experience governing applications built on strategic stacks, including Java (Spring Boot) and Python, and More ❯

main equipment LRI . Generate test plans & test documentation to undertake Design Verification testing . Planning/preparation for TE development, including test hardware (custom/COTS), tools & test software . Produce TE requirement specifications (i.e. test hardware and test software requirements ). Produce detailed TE design documentation , including drawings , BOM s, etc. Liaise with TE software engineer (s) to ensure TE software solution is delivered . Propose and see through to conclusion, any TE design changes/improvements required to meet test requirements. Undertake/support Safety & Cyber security analysis of DVT system. Produce required documentation for each stage of the TE development process . Prepare and present design data , status , risks , etc.. at … TE design reviews & ensure completion of actions . Release drawings , BOM s, etc.. for TE hardware and documentation ( VDD s, SRN s, etc..) for test software on customer s PDM system . Undertake/oversee qualification of TE solution and produce Qualification/acceptance test report . Produce user documentation for DVT system . Support initial Design Verification testing More ❯

Cutting-edge R&D Our Global client is seeking a highly motivated Automation Engineer to join a pioneering R&D team. You'll work at the intersection of robotics, software engineering and machine learning, helping to design and automate processes that validate next-generation product features. This is a hands-on, lab-based role, where you'll collaborate … closely with engineers to build and refine automated systems using robotic, camera and lighting technologies. If you enjoy solving complex 3D geometry challenges and creating elegant, efficient software to power real-world automation, this is an opportunity to make your mark. What You'll Bring: Master's degree in an engineering-related discipline. Industry experience in robotics or … software engineering. Proven expertise in developing autonomous robotic solutions and working with 3D geometry. Strong software engineering skills and a practical, problem-solving mindset. An interest in machine learning, computer vision or computer graphics. Comfortable working hands-on with hardware in a lab environment. If you're passionate about automation and excited by the opportunity to contribute More ❯

Job title: Senior Software Engineer Location: Full Remote (Very occasional travel to offices in Cheshire) Type: Contract/Outside IR35/6 months initial duration + possible renewals About the Role We’re looking for Senior Software Engineers to join our client's dynamic Engineering team and play a key role in building high-quality, scalable software solutions. As a senior member of the team, you’ll take ownership of full-stack development, contribute to software architecture, drive engineering best practices, and mentor junior team members. You’ll work closely with Product Owners, Architects, and DevOps to ensure delivery excellence across a diverse range of projects. What You'll Be Doing Software Development … Web APIs following best practices Use SQL Server, Entity Framework, and SQL for efficient data management Apply design patterns like OOP, SOLID, and Clean Code to write scalable code Engineering & Architecture Deliver high- and low-level estimations for projects Ensure software quality through unit and integration testing Perform code reviews and participate in pair programming Architect scalable, secure More ❯

a large-scale central government programme , supporting the delivery of high-quality, secure, and scalable digital services. You'll lead technical direction across development teams, ensuring best practice in software engineering, architecture, and delivery. This role requires hands-on Java expertise alongside the ability to mentor engineers and influence technical decisions across multiple workstreams. Key Responsibilities Provide technical … leadership and guidance to software engineering teams Define and implement best practices in software design, coding, testing, and deployment Lead the development of secure and scalable Java-based applications Collaborate closely with Product Managers, Architects, and Delivery Leads to ensure technical alignment Contribute to continuous improvement and innovation within a complex, multi-team environment Essential Skills & Experience More ❯

value.* Contributing to projects such as developing a digital high net worth insurance offering and/or creating a portfolio analysis tool. Responsibilities: * Participate in different phases of the software development lifecycle (SDLC) across multiple projects.* Design technical solutions and produce supporting documentation in line with internal delivery frameworks.* Comply with and help enforce design, coding, and testing standards … policies, and software engineering best practices.* Collaborate with testing teams during product test and UAT phases to resolve assigned defects.* Support code deployment and release processes across environments.* Report status, issues, and risks to technical leads regularly.* Troubleshoot and resolve issues arising during daily operations, providing timely solutions as required.* Enhance technical and software engineering skills More ❯

value. * Contributing to projects such as developing a digital high net worth insurance offering and/or creating a portfolio analysis tool. Responsibilities: * Participate in different phases of the software development lifecycle (SDLC) across multiple projects. * Design technical solutions and produce supporting documentation in line with internal delivery frameworks. * Comply with and help enforce design, coding, and testing standards … policies, and software engineering best practices. * Collaborate with testing teams during product test and UAT phases to resolve assigned defects. * Support code deployment and release processes across environments. * Report status, issues, and risks to technical leads regularly. * Troubleshoot and resolve issues arising during daily operations, providing timely solutions as required. * Enhance technical and software engineering skills More ❯

Mission Planning System (MPS) Engineering Lead Location: Abbey Wood/Hybrid Rate: Up to £570/day Contract Length: Until 31 December 2027 About the Role We are seeking an experienced Engineering Lead to oversee the design, procurement, and integration of a Mission Planning System (MPS) - a critical component of a multinational Electronic Warfare (EW) training capability. The … provides the core technical framework for exercise planning, equipment programming, command and control (C2), post-mission analysis, and data management across air, land, and maritime domains. As the MPS Engineering Lead , you will manage the system's full engineering life cycle, from concept and design through to delivery, ensuring it meets operational, security, and safety requirements and is … completed on schedule. Key Responsibilities Lead the engineering activities for the MPS, ensuring alignment with project objectives, standards, and milestones. Oversee contractor design and integration work, ensuring compliance with project and stakeholder requirements. Develop and maintain system architecture, information models, and supporting documentation. Collaborate with technical specialists, system architects, and cybersecurity professionals to ensure the MPS is secure, safe More ❯

Contract An incredible opportunity for an experienced Backend Engineer with advanced Go skills to join a prestigious tech client on a contract basis. This company is renowned for its engineering excellence - and it's not just the tech stack or the day rate that stands out. Contractors here regularly speak highly of the fast-moving, collaborative culture where autonomy … are front and centre. As a Backend Engineer, you'll be working on mission-critical, data-intensive applications that push the boundaries of technology, taking ownership of the full software engineering lifecycle, including design, development, and implementation. You'll join a product-focused team that works in tight feedback loops - small pull requests, quick reviews, and fast iteration. … place where engineers are encouraged to leave things better than they found them, whether it's a piece of code, a flaky test, or a README. Reporting into an Engineering Manager, the Backend Engineer will leverage modern technologies like AWS, Kubernetes, Docker, and Kafka, while also architecting and implementing microservices-based solutions in collaboration with cross-functional teams. You More ❯

re-join the workforce with training and career coaching included? Then you’ll want to hear about the UK’s leading Returners Programme and the opportunities to join our Software Engineering Practice. Our Returners Programme is specifically designed to support professionals returning to work after a career break. Having restarted over 550 careers since 2016, our Returners Team … have the confidence, skills and opportunity to step back into a successful and rewarding career in business or technology. You’ll be joining FDM as a Consultant within our Software Engineering Practice, where you will be delivering large-scale projects for our clients across a wide range of sectors and specialist areas. You could see yourself taking on … the role of Software Engineer, QA Engineer, Cloud Developer, DevOps/SRE and more. Whatever your experience, we can help you progress from where you left off, whether at mid, senior or lead consultant level. Within the FDM Skills Lab you’ll receive upskilling in programming languages and leading vendor technologies, like Microsoft and AWS, to help refresh your More ❯

of sustainable fusion energy and maximise scientific and economic impact. The Computing Division underpins this mission by delivering secure, scalable, and innovative digital solutions across scientific computing, modelling, simulation, software engineering, business systems, data acquisition, and core IT services. Within the Computing Division, the Enterprise Infrastructure Solutions unit is responsible for the design, delivery, and management of centrally … supported IT infrastructure and applications. This includes enterprise compute platforms, data networks, UNIX/Linux/Windows environments, cloud services, data centres, commercial software solutions, Cyber Security and end-user support across all UKAEA sites. The UNIX Systems Group sits within the Enterprise Infrastructure Solutions Unit in the Computing Division and is Responsible for the technical design integration, smooth … and file servers o Good understanding of networking o A knowledge of current techniques and trends in Linux systems and IT in general (e.g. cloud computing) o Experience with software engineering processes and best practices o Experience supporting assurance activities or government-mandated reviews o Strong stakeholder engagement and communication skills with an ability to produce technical reports More ❯

Low-Level Embedded Software Engineer Location: Bristol, UK Duration: 6-month contract Rate: £65/hour (Umbrella) OR £49.70/hour (+£7.22/hour Holiday pay) Work Pattern: Fully on-site, compressed hours available We seek an engineer who has worked in a military/defence environment/industry within the last 12 months or who is capable … of obtaining security clearance (SC level minimum) Role Overview We are seeking a skilled Low-Level Embedded Software Engineer to support ongoing engineering programmes. This role involves the development, verification, and integration of embedded software solutions, ensuring high standards of quality, performance, and compliance across the full engineering lifecycle. Key Responsibilities Develop and maintain embedded software using C for real-time systems. Contribute to verification activities to ensure robust and reliable software delivery. Support integration of software on ARM-based processing platforms. Produce and review technical documentation, including design specifications. Engage with stakeholders to ensure technical alignment with project goals. Apply software engineering best practices and adhere to relevant industry standards. More ❯

Market Rates (Outside IR35) Location: Manchester/Hybrid Start: ASAP Skills -Previously served as a Programme Manager leading large-scale digital transformation or complex technology programmes. -Demonstrate understanding of software engineering, software development, or project management fundamentals that affect code implementation and customer experience. -strong understanding of programme governance principles and practices, including risk management and governance. More ❯

Rate: Market Rates (Outside IR35)Location: Manchester/HybridStart: ASAP Skills -Previously served as a Programme Manager leading large-scale digital transformation or complex technology programmes.-Demonstrate understanding of software engineering, software development, or project management fundamentals that affect code implementation and customer experience.-strong understanding of programme governance principles and practices, including risk management and governance. More ❯

World Class Defence Organisation based in Bristol is currently looking to recruit a Technical Software Documentation Officer subcontractor on an initial 12-month contract. ** The department are not looking for a Software Engineer (this is not an engineer position). They are looking for someone with Documentation experience, ensuring all is correct for software releases. The role … will require an understanding of the software process. ** Rate: £65 per hour Overtime Rate: Hours worked over the standard 37 hours per week, will be paid at time and a quarter Location: Bristol Hybrid/Remote working: The role will be onsite but the department are happy for the role to be worked on a 4-day week (Monday … basis 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 process Technical Software Documentation Officer Job Description: Capable, self-driven and flexible software professional to support multiple development teams in project management and software delivery. It would suit someone who More ❯

Senior Software Developer - Ruby -hybrid - SC - 12mths - 6-650pdy inIR35) Our client is seeking an experienced Senior Software Developer (Ruby) with significant experience in software engineering, including leading the development of production-level web services. A hybrid role with 2 days p/wk on site in either London or Manchester. You will work within … a multi-disciplinary product team and lead the design, development, and maintenance of robust, scalable open data services and APIs Provide strategic technical leadership by setting software architecture, engineering practices, and technical direction across the Team Define and evolve scalable, secure design patterns and coding standards, ensuring alignment with GDS standards and cross-government platforms Experience required: Strong 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 ❯

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 life cycle - 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 … 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 Back End software engineering, with significant commercial experience Advanced proficiency in Go (Golang) and hands-on expertise with AWS, Kubernetes More ❯

Embedded C Software Engineer Location: Stevenage Contract: 6-Month Contract (Likely Extension) Rate: £51.98/hour PAYE (£59.54/hour incl. holiday) or £68/hour Umbrella We seek an engineer who has worked in a military/defence environment/industry within the last 12 months or who is capable of obtaining security clearance (SC level minimum) Overview … This engineering role focuses on the development and implementation of embedded C software solutions for real-time systems. The successful candidate will work on-site within a collaborative engineering environment, contributing to the design and programming of embedded systems operating on bare-metal and real-time operating systems. Key Responsibilities Design and develop embedded software using … C for real-time applications. Implement and debug bare-metal software solutions. Develop software within real-time operating systems such as FreeRTOS. Apply UML methodologies for structured software design. Manage and trace software requirements using DOORS. Support testing, integration, and validation of embedded software. Collaborate with multidisciplinary engineering teams throughout the software lifecycle. Ensure More ❯

Embedded C Software Engineer Location: Stevenage Contract: 6-Month Contract (Likely Extension) Rate: £51.98/hour PAYE (£59.54/hour incl. holiday) or £68/hour Umbrella We seek an engineer who has worked in a military/defence environment/industry within the last 12 months or who is capable of obtaining security clearance (SC level minimum) Overview … This engineering role focuses on the development and implementation of embedded C software solutions for real-time systems. The successful candidate will work on-site within a collaborative engineering environment, contributing to the design and programming of embedded systems operating on bare-metal and real-time operating systems. Key Responsibilities Design and develop embedded software using … C for real-time applications. Implement and debug bare-metal software solutions. Develop software within real-time operating systems such as FreeRTOS. Apply UML methodologies for structured software design. Manage and trace software requirements using DOORS. Support testing, integration, and validation of embedded software. Collaborate with multidisciplinary engineering teams throughout the software lifecycle. Ensure More ❯

Summer-Browning Associates are currently supporting our Central Government client who are seeking a Senior Software Engineer who is highly proficient with Ruby programming on an initial 12 month contract (London or Manchester - hybrid) As a Senior Software Developer you'll: Work within a multi-disciplinary product team and lead the design, development, and maintenance of robust, scalable … open data services and APIs Provide strategic technical leadership by setting software architecture, engineering practices, and technical direction across the Team Define and evolve scalable, secure design patterns and coding standards, ensuring alignment with standards and cross-government platforms Collaborate with teams to select technologies, shape roadmaps, and deliver resilient, maintainable digital services that meet programme goals Represent … forums, open-source communities, and government working groups Ensure delivery aligns with the Service Standard, Technology Code of Practice, and departmental governance processes Who you are: As a Senior Software Developer you'll have: Significant experience in software engineering, including leading the development of production-level web services. Strong coding ability in Ruby and at least one More ❯

Senior Python Software Developer (SC Cleared) Duration: 12 Months Location: London & remote (hybrid) Rate: £650 per day IR35 Status: Inside Start: ASAP A Senior Python Software Developer (SC Cleared) is required for our government client, where you will be working on a specific project where they are transforming and redesigning their data hub, which provides access to a … will work within a multi-disciplinary product team and lead the design, development, and maintenance of robust, scalable open data services and APIs Provide strategic technical leadership by setting software architecture, engineering practices, and technical direction across the team Define and evolve scalable, secure design patterns and coding standards, ensuring alignment with government standards and cross-government platforms … Service Standard, Technology Code of Practice, and departmental governance processes Essential Skills & Experience required: As the Senior Python Developer (SC Cleared) you will possess the following: Significant experience in software engineering, including leading the development of production-level web services. Strong coding ability in Python/Ruby and at least one other modern language Strong experience working with More ❯

Software Engineer (AI Focused) | 6 Month Contract | Remote (UK only) I'm partnering with an innovative AI-driven start-up that's transforming how data and reporting are handled across the commercial real estate industry. We're looking for a Software Engineer with a strong back-end focus and full-stack versatility - someone who thrives in fast-paced … direction. Location: Remote (UK only) Contract: 6 Months (likely extension) Rate: £375-425 p/day (OIR35) Start date: ASAP What we're looking for: 4+ years' experience in software engineering (SaaS or start-up background preferred) Strong proficiency in Python and C#, with hands-on experience in API design and cloud architecture (Azure). Experience with Excel More ❯

Software Engineer (AI Focused) | 6 Month Contract | Remote (UK only) I'm partnering with an innovative AI-driven start-up that's transforming how data and reporting are handled across the commercial real estate industry. We're looking for a Software Engineer with a strong back-end focus and full-stack versatility - someone who thrives in fast-paced … direction. Location: Remote (UK only) Contract: 6 Months (likely extension) Rate: £375-425 p/day (OIR35) Start date: ASAP What we're looking for: 4+ years' experience in software engineering (SaaS or start-up background preferred) Strong proficiency in Python and C#, with hands-on experience in API design and cloud architecture (Azure). Experience with Excel More ❯