58 software engineer jobs found in Bristol

Geospatial Data Engineer - Contract Remote UK £420 per day 12 Months - the entirety of 2026 into 2027 Deemed Outside IR35 (pending QDOS assessment) This Contract Geospatial Data role is a fantastic opportunity to work on cutting edge data problems at a leading environmental risk consultancy click apply for full job details

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...

Guidance & Control Software Engineer (Interception Systems)Location: North London - HybridType: Contract - Outside IR35Rate: Starting at £50 per hour DOE About the Role Our client develops advanced autonomous weapon and interception technologies designed for high-speed target engagement in contested environments. The programme centres on a vision-guided one-way aerial system capable of autonomously detecting, tracking, and intercepting manoeuvring objects. The software architecture combines real-time perception with predictive guidance and control. This role will be central to the development of the onboard flight and guidance stack, implementing estimation, tracking and control algorithms in performance-critical C++ code. The engineer will work closely with perception, simulation and hardware teams to ensure reliable terminal behaviour under real-world conditions. The Guidance & Control Software Engineer position suits an engineer with experience in missile guidance,...

Senior Full-Stack Software Engineer (AI/ML Specialist) Contract role, 12 months duration Rate- £500/day Outside ir35, fully work from Home The role is with one of our Global Clients looking for a Senior Full-Stack Software Engineer with deep expertise in AI-powered application development to join their team. This is a senior individual contributor role with opportunities to work on complex, high-impact AI projects across Azure cloud Infrastructure, and AI/ML platforms. Responsibilities: - Design and build scalable, enterprise-grade full-stack multi-agent , agentic AI applications using modern frameworks including Python, Next.js, TypeScript and Node.js. Architect and integrate AI/ML capabilities including RAG pipelines, AI agent orchestration, and LLM-powered features using OpenAI, Azure OpenAI, and LangChain/LangGraph Lead technical design decisions across API design, microservices architectures, translating complex business requirements into clean,...

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...

Senior Power BI Consultant - Outside IR35 Location: Central London (2-3 days on-site) Contract: 6-12 months, Outside IR35 Industry: Oil & Gas/Commodity Trading Role Summary A leading energy & commodity trading business is looking for a Senior Power BI Consultant to support ongoing analytics and data-modelling work. The role blends hands-on BI development with business engagement. Key Responsibilities * Build and optimise Power BI dashboards, semantic models, and data flows. * Lead data modelling across complex trading datasets. * Translate business requirements into technical specifications for offshore developers. * Ensure best practice in DAX, SQL, and BI design. * Work within the organisation's Databricks environment (platform familiarity expected). * Provide leadership, guidance, and clear communication to both business and technical teams. Required Skills * Expert-level Power BI, DAX, and data modelling. * Strong SQL and experience with large datasets. *...

Senior Full-Stack Software Engineer (AI/ML Specialist) Contract role, 12 months duration Rate- £500/day Outside ir35, fully work from Home The role is with one of our Global Clients looking for a Senior Full-Stack Software Engineer with deep expertise in AI-powered application development to join their team. This is a senior individual contributor role with opportunities to work on complex, high-impact AI projects across Azure cloud infrastructure, and AI/ML platforms. Responsibilities: - Design and build scalable, enterprise-grade full-stack multi-agent , agentic AI applications using modern frameworks including Python, Next.js, TypeScript and Node.js. Architect and integrate AI/ML capabilities including RAG pipelines, AI agent orchestration, and LLM-powered features using OpenAI, Azure OpenAI, and LangChain/LangGraph Lead technical design decisions across API design, microservices architectures, translating complex business requirements into clean,...

Senior C# Software Engineer (Contract) Location: London (Hybrid) Rate: £500 per day IR35 Status: Outside IR35 Duration: 6 Months (Initial) The Opportunity Join a high-performing engineering team within a London-based powerhouse that is currently dominating its sector. This company has moved past the startup phase into a period of sophisticated, sustainable growth, and they are now maturing their global platform to be truly cloud-agnostic. This role is perfect for a Senior Engineer who thrives on architectural variety. You won’t just be maintaining a single environment; you will be building high-throughput systems that leverage the best features across AWS, Azure, and GCP . The Role As a Senior C# Engineer, you will lead the development of mission-critical services that form the backbone of a rapidly scaling infrastructure. Your focus will be: Backend Development: Writing clean, testable, and high-performance code using the latest...

Senior Software Engineer - Node & React Remote with very occasional client visits £420 - £440pd Outside IR35 3-month contract Our client, an established and successful Consultancy are looking for an experienced Developer to join them on a contract basis. With head offices in the north of the UK and branches spreading across the globe, they're a dynamic technology consultancy leader with a dedicated team of professionals, partnering with sector leaders This is a completely hands-on role where you will develop and maintain scalable, full-stack web applications using Next.js and Node.js We are looking for: Demonstrable and proven experience in full-stack applications (inc. working knowledge of a range of technologies such as React, Node.js and TypeScript). Experience with Azure and ARM templates including dev and deployment of supporting cloud infrastructure (inc. pipelines). Excellent, in-depth understanding of BDD, TDD and SOLID principles. In-depth...

Senior Software Engineer - Node & React Remote with very occasional client visits £420 - £440pd Outside IR35 3-month contract Our client, an established and successful Consultancy are looking for an experienced Developer to join them on a contract basis click apply for full job details

Embedded Software Contractor As a Software engineer with my client will be at the forefront of innovation, helping to defend and protect the UK from the latest technological and cyber threats.You will get to explore pioneering concepts by collaborating with elite multi-disciplinary teams of highly educated and skilled scientists, engineers, and designers. You'll see ideas become a reality as you create prototypes. Requirements: - Active SC or DV clearance. - Experience using: Python, Linux, C++, GUIs, Embedded C Key details: - Onsite based in Cambridge - 4 day compressed work week is an option - Outside IR35 - Open rate - 6 month length + extension If this role is of interest then please apply or reach out to Ollie Hawkins

Embedded Software Contractor As a Software engineer with my client will be at the forefront of innovation, helping to defend and protect the UK from the latest technological and cyber threats.You will get to explore pioneering concepts by collaborating with elite multi-disciplinary teams of highly educated and skilled scientists, engineers, and designers. You'll see ideas become a reality as you create prototypes. Requirements: - Active SC or DV clearance. - Experience using: Python, Linux, C++, GUIs, Embedded C Key details: - Onsite based in Cambridge - 4 day compressed work week is an option - Outside IR35 - Open rate - 6 month length + extension If this role is of interest then please apply or reach out to Ollie Hawkins

Embedded Software Engineer | 6-Month Contract (Outside IR35) | Cambridge Location: Cambridge, UK Contract Type: 6 months (Outside IR35) Rate: Competitive (DOE) Security Clearance: SC Clearance required About the Role We are working with a leading UK defence and security technology consultancy, engaged in developing cutting-edge solutions that protect the UK from emerging technological and cyber threats. As an Embedded Software Engineer, you’ll work alongside a multi-disciplinary team of scientists and engineers to design, develop, test, and deliver prototype solutions. This is a hands-on, technically challenging role where your work will have real-world impact. Responsibilities: Develop embedded software for high-tech systems, primarily in C (Linux environment) Collaborate with teams on design, prototyping, and full product lifecycle development Debug and optimise software and hardware interfaces Contribute to technical problem-solving and innovative solutions Required...

Embedded Software Engineer - Contract - Outside IR35 The successful embedded software engineer will be operating at the boundary of technological exploration through inventions and cutting-edge technology. Typically, this will involve going through the whole product life cycle. The successful embedded software engineer will capture, design, develop, document, test, and deliver through to the prototype production. This will use all your experimental and problem-solving skills. You will get to enjoy a broad range of technically demanding projects with the freedom to find solutions. Requirements / Nice to have: Embedded Linux, Yocto or Petalinux Zynq Ultrascale FPGAs C++ QT Embedded C exposure would be beneficial Python would also be beneficial Key details: 4 days a week in Cambridge. Active SC clearance would be ideal but lapsed clearance would be okay. 2 stage interview process. Outside IR35. Initial 6 months with view to extend for a...

PLC Software Engineer Location: Heybridge, Essex, Full time on site Duration: 18 months Rate negotiable on application Outside IR35 Job description The implementor should have a fundamental knowledge in programming with Codesys as well as in all corresponding programming languages eg Structured text click apply for full job details

Contract Full Stack Engineer 3-Month Contract (Potential Extension) £500pd Outside of IR35 Leeds / Hybrid WRK Digital have partnered with an innovative technology consultancy supporting a cutting-edge end client delivering groundbreaking work in the AI space. If you're a React, Next.JS engineer with a passion for AI and want to work on meaningful digital transformation projects at the forefront of emerging technology, this is a contract worth exploring. The Role You’ll be developing high-impact features using React, Next.js, and TypeScript while integrating advanced AI capabilities through LLMs and Claude APIs. If you’re excited by modern JavaScript frameworks and practical AI engineering, this one’s for you. The end client is a financial services organisation. The use of AI is to speed up the companies KYC process, so experience in this type of project is really advantageous. The right candidate will have commercial AI experience and be a...

Contract Full Stack Engineer 3-Month Contract (Potential Extension) £500pd Outside of IR35 Leeds/Hybrid WRK Digital have partnered with an innovative technology consultancy supporting a cutting-edge end client delivering groundbreaking work in the AI space. If you're a React, Next click apply for full job details

Java Developer Contract – 6 Months Outside IR35 Hybrid - 1 day per month in London office We’re looking for an experienced Java Developers to join a fast-paced engineering team on an initial 6-month contract (Outside IR35). You’ll be contributing to the development and enhancement of scalable backend systems in a collaborative, delivery-focused environment. Responsibilities Design, develop, and maintain high-quality Java applications Build and improve backend services and APIs Write clean, testable, and efficient code Collaborate with engineers, QA, and stakeholders to deliver features Participate in code reviews and technical discussions Requirements Strong commercial experience with Java Solid understanding of object-oriented design principles Experience building backend systems and APIs Familiar with unit testing and best coding practices Comfortable working in an agile development environment Ideal for a contractor who...

Software Test Automation Engineer Remote £competitive outside IR35 rate Contract Test, Quality Assurance, ISTQB, Selenium, Cypress, Playwright, Azure Devops, Postman Our client are seeking an experience Test Engineer/Test Automation professional to preside over business-wide test activities - test automation and API testing will be in amongst the main duties of the role. We are looking for a proactive Quality Assurance professional to drive higher software standards through shift-left testing and early requirement analysis. You will plan, design, carry out tests in alignment and conjunction with existing technical and business teams and be the champion of Quality and seamless UAT throughout the business. Key Tools Selenium, Cypress, Playwright, Postman, Azure DevOps Test Plans, Jira + Zephyr/Xray, TestRail, HP ALM. Test Automation Knowledge of test automation frameworks (eg, Selenium, Cypress, Playwright). Understanding of CI/CD...

DV Cleared Senior Software Engineer Aldermaston - Onsite 12-month contract Outside IR35 Are you a DV cleared Software Engineer who can take full ownership of software delivery on site? Do you enjoy building Siemens PLC solutions from scratch in secure, regulated environments? Looking for a long-term contract with a strong on-site engineering focus? What's in it for you £650 to £750 per day Outside IR35 1 click apply for full job details