65 software engineer jobs found in Bristol

Software Engineer - Verification Winfrith, near Dorchester (4 days on site per week) – 6 month duration – Outside IR35 We are looking for a Software Test Engineer to work for our defence client in Winfrith, near Dorchester. This can operate on an Outside IR35 basis and the main purpose is: delivery of Software Test activities (including planning, management, and testing) within the software development lifecycle. Knowledge and experience: Proven ability to support or lead software test activities within defence or other safety critical field Knowledge and understanding of Software Testing within Software development lifecycle Understanding of Open Systems Architectures and Principles Experience of Software Engineering Lifecycle processes and tools Ability to efficiently plan, manage and deliver robust Software test solutions including Manual and Regression Testing Experience in the testing of high integrity software to recognised standards –IEC61508, or equivalent...

Software Engineer/API/Microservices/Outside IR35 Brilliant opportunity available for a Senior Software Engineer, with experience of coding APIs/web services has become available with a business based in Oxfordshire. The role can be largely remote with up to once a week office work in Didcot and ideally starting mid December - early Jan click apply for full job details

Software Engineer / API / Microservices / Outside IR35 Brilliant opportunity available for a Senior Software Engineer, with experience of coding APIs/web services has become available with a business based in Oxfordshire. The role can be largely remote with up to once a week office work in Didcot and ideally starting mid December - early Jan. We need experience of - - Python or Rust are the preferred languages - Coding APIs/web services - Microservices - Ideally experience with Devops/Kubernetes and Azure Interviews can be scheduled right away with a view of starting mid December - early Jan Apply via the link below or email me with your CV (joss. Escott @ Roberthalf. co. uk) Software Engineer / API / Microservices / Outside IR35 Robert Half Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. Robert Half is committed to diversity, equity and inclusion. Suitable candidates with equivalent qualifications and...

Senior Software Engineer, App Experience, Contract, Outside IR35, Remote, My client, a global hospitality brand, is on the search for a Senior Software Engineer to join a cross-functional App Experience team, helping deliver a best-in class mobile experience and supporting the rollout of a new feature-flag platform. This role will be predominantly Back End work using Node, TypeScript and will involve working closely with API's, updating/refactoring. What you'll do Build and enhance Back End services powering a widely used customer mobile app Ensure applications are performant, scalable, and secure Participate in agile delivery: code reviews, testing, deployments Integrate enterprise systems into custom-built architecture Tech you'll work with Node.js, JavaScript, TypeScript, React Automated testing: Jest, React Testing Library, MSW, Maestro CI/CD & cloud tools such as Bitrise, GitHub Actions, Cloud Run, Cloud Build, Terraform React Native and observability...

Role: Developer Tech Stack: .NET, C#, AWS, MongoDB IR35 Status: Outside IR35 Day Rate: £400.00 Location: Remote Contract Length: 3 months (highly likely to extend to 6 months+) Start Date: Immediate We are seeking a Developer to join the agile delivery team supporting the development of a major government digital platform. You will be responsible for developing secure, performant, and maintainable features, working across both Front End and Back End elements of the system. This role is suitable for developers with a strong foundation in .NET and cloud-native engineering, and offers scope to grow technical ownership within a supportive, delivery-focused team. You'll be working in an environment that values collaboration, learning, and continuous improvement. Key Responsibilities Design, build, test, and deploy robust software components using modern development tools and approaches. Contribute to the evolution of the platform's services and...

PLC Software Engineer/PLC Safety Software Engineer/Safety Software Engineer - Siemens - 9 month contract - Hybrid 2 days a week in Hatfield, Hertfordshire - £Negotiable per day - Outside IR35 We're looking for PLC Software Engineers/PLC Safety Software Engineers (Siemens) to help design, develop, and optimise safety-critical control systems used across advanced automation environments. What You'll Do Develop and maintain safety-related PLC systems (Siemens; Beckhoff a bonus). Implement safety functions (E-Stops, interlocks, light curtains, etc.) to global standards. Support FAT/SAT testing, commissioning, and system optimisation. Produce technical documentation and collaborate across engineering disciplines. Experience Sought Proven experience in PLC programming with strong safety engineering expertise. Siemens Safety training. Strong knowledge of safety standards (ISO 13849, IEC 62061, IEC 61508). Skilled in TIA Portal and industrial comms...

Full-Stack Java Software Engineer (Hybrid Cloud Transformation) I. Role Overview and Engagement This is a critical, hands-on engineering role within a major Financial Services institution focused on accelerating their Cloud Modernization and Migration Strategy . The successful candidate will be integral to developing and deploying enterprise-grade, secure, and scalable microservices within a complex Hybrid Cloud Architecture . Job Title: Full-Stack Java Software Engineer Location: Central London (Hybrid: 2 days onsite) Engagement Model: 1-Month Contract (Outside IR35) to Guaranteed Permanent Conversion Contract Rate: £450/day (during 1-month contract term) Urgency: URGENT – Interviews scheduled this week for ASAP start. Role Type: Highly Hands-on Contributor (Not a Lead position), requiring strong commercial awareness . II. Core Technical Mandate (Mandatory & Non-Negotiable) The engineer must possess recent, demonstrable...

Full-Stack Java Software Engineer (Hybrid Cloud Transformation) I. Role Overview and Engagement This is a critical, hands-on engineering role within a major Financial Services institution focused on accelerating their Cloud Modernization and Migration Strategy . The successful candidate will be integral to developing and deploying enterprise-grade, secure, and scalable microservices within a complex Hybrid Cloud Architecture . Job Title: Full-Stack Java Software Engineer Location: Central London (Hybrid: 2 days onsite) Engagement Model: 1-Month Contract (Outside IR35) to Guaranteed Permanent Conversion Contract Rate: £450/day (during 1-month contract term) Urgency: URGENT - Interviews scheduled this week for ASAP start. Role Type: Highly Hands-on Contributor (Not a Lead position), requiring strong commercial awareness . II. Core Technical Mandate (Mandatory & Non-Negotiable) The engineer must possess recent, demonstrable expertise in...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £600 to £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices click apply for full job details

Contract Senior Full Stack Software Engineer : Up to £500 Outside IR35 : Monthly Hybrid London : 6 months (rolling) A digital consulting partner of ours are looking for a Contract Senior Full Stack Software Engineer to design, build, and maintain scalable, high-performance software systems for their end customer. As a Contract Senior Full Stack Software Engineer you will lead technical decision-making by reviewing designs, mentoring engineers, and driving best practices in code quality, architecture, and tooling. Key Skills: Angular, Java, Node.js MuleSoft Cloud experience (AWS, Azure, GCP) Contract Details: Up to £500 per day, Outside IR35 6 months (rolling) Monthly Hybrid London This is an exciting opportunity for an experienced developer to apply their expertise in a fast-moving environment, shaping technologies that directly impact real time projects. Please note: Due to the high volume of applications, unfortunately, we may not be able...

Contract Senior Full Stack Software Engineer : Up to £500 Outside IR35 : Monthly Hybrid London : 6 months (rolling) A digital consulting partner of ours are looking for a Contract Senior Full Stack Software Engineer to design, build, and maintain scalable, high-performance software systems for their end customer. As a Contract Senior Full Stack Software Engineer you will lead technical decision-making by reviewing designs, mentoring engineers, and driving best practices in code quality, architecture, and tooling. Key Skills: Angular, Java, Node.js MuleSoft Cloud experience (AWS, Azure, GCP) Contract Details: Up to £500 per day, Outside IR35 6 months (rolling) Monthly Hybrid London This is an exciting opportunity for an experienced developer to apply their expertise in a fast-moving environment, shaping technologies that directly impact Real Time projects. Please note: Due to the high volume of applications, unfortunately, we may not be able to...

Senior Software Engineer, App Experience, Contract, Outside IR35, Remote, My client, a global hospitality brand, is on the search for a Senior Software Engineer to join a cross-functional App Experience team, helping deliver a best-in-class mobile experience and supporting the rollout of a new feature-flag platform. This role will be predominantly backend work using Node, TypeScript and will involve working closely with API’s, updating / refactoring. What you’ll do Build and enhance backend services powering a widely used customer mobile app Ensure applications are performant, scalable, and secure Participate in agile delivery: code reviews, testing, deployments Integrate enterprise systems into custom-built architecture Tech you’ll work with Node.js, JavaScript, TypeScript, React Automated testing: Jest, React Testing Library, MSW, Maestro CI/CD & cloud tools such as Bitrise, GitHub Actions, Cloud Run, Cloud Build, Terraform React Native and...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements Strong .NET / C# background Significant experience integrating and communicating with hardware devices Ability to handle Windows devices, drivers, and communication layers 8+ years of experience at a staff-level , capable of working autonomously Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience gRPC , REST APIs , HTTP Integrating devices in Life Sciences Robotics integration (robotic arms, 6-axis systems) If you're interested, please...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements Strong .NET/C# background Significant experience integrating and communicating with hardware devices Ability to handle Windows devices, drivers, and communication layers 8+ years of experience at a staff-level , capable of working autonomously Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience gRPC , REST APIs , HTTP Integrating devices in Life Sciences Robotics integration (robotic arms, 6-axis systems) If you're interested, please respond...

Role: Staff Software Engineer Sector: Life Sciences Location: London Days Onsite: 3 per week Day Rate: £600 to £800 Outside IR35 Duration: 4 Months then to extend or go Permanent iO Associates have partnered with Life Science Manufacturing company on their search for a Staff Software Engineer who has a strong background in integrating Medical Devices. This role will give you the opportunity to make a real impact in Healthcare and Life Sciences. Essential Requirements Strong .NET / C# background Significant experience integrating and communicating with hardware devices Ability to handle Windows devices, drivers, and communication layers 8+ years of experience at a staff-level , capable of working autonomously Not a web-focused developer; needs to be fully hardware-integration oriented Beneficial Experience gRPC , REST APIs , HTTP Integrating devices in Life Sciences Robotics integration (robotic arms, 6-axis systems) If you're interested,...

Role: Senior Software Engineer - Backend Contract Rate: C.£550 Outside IR35 Per day Location: Leeds - Hybrid (2x days on site) Length: 3-6 months About Us: We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers click apply for full job details

Role: Senior Software Engineer - Backend Contract Rate: C.£550 Outside IR35 Per day Location: Leeds - Hybrid (2x days on site) Length: 3-6 months About Us: We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. Role Overview: As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. Key Responsibilities: Design, implement, and maintain backend services, APIs, and databases. Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. Ensure systems are scalable, reliable, and maintainable. Write clean, testable, and efficient code following best practices. Requirements: Strong programming...

Role: Senior Software Engineer - Backend Contract Rate: C.£550 Outside IR35 Per day Location: Leeds - Hybrid (2x days on site) Length: 3-6 months About Us: We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. Role Overview: As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining server-side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. Key Responsibilities: Design, implement, and maintain backend services, APIs, and databases. Collaborate with product managers, frontend engineers, and other stakeholders to deliver features end-to-end. Ensure systems are scalable, reliable, and maintainable. Write clean, testable, and efficient code following best practices. Requirements: Strong programming skills...

Role: Senior Software Engineer - Backend Contract Rate: C.£550 Outside IR35 Per day Location: Leeds - Hybrid (2x days on site) Length: 3-6 months About Us: We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers. Role Overview: As a Senior Software Engineer, you will be responsible for designing, developing, and maintaining Server Side applications and services. You'll work closely with cross-functional teams to ensure our systems are performant, secure, and deliver a great user experience. Key Responsibilities: Design, implement, and maintain Back End services, APIs, and databases. Collaborate with product managers, Front End engineers, and other stakeholders to deliver features end-to-end. Ensure systems are scalable, reliable, and maintainable. Write clean, testable, and efficient code following best practices. Requirements: Strong programming...

Role: Senior Software Engineer - Backend Contract Rate: C.£550 Outside IR35 Per day Location: Leeds - Hybrid (2x days on site) Length: 3-6 months About Us: We are working with a growing, forward-thinking technology company dedicated to building scalable, reliable, and high-performing solutions for our customers click apply for full job details