351 software developer jobs found

Contract Software Developer – AI‑Powered Portal Overview: Join us as a Contract Software Developer to build and optimize an AI‑powered portal. You will design, develop, and integrate secure, scalable features and APIs across cloud platforms in a fast‑paced, collaborative environment. Duties: Develop, test, and deploy high‑quality web applications and RESTful APIs for the portal. Integrate third‑party and custom APIs, ensuring secure, real‑time data exchange. Build intuitive front‑end interfaces and dashboards for AI‑driven features. Optimize performance and reliability on AWS/Azure and maintain existing services. Use Git‑based version control and Agile practices to deliver features iteratively. Skills: Strong experience with modern languages and web technologies (e.g., Java, C#, Python, JavaScript, SQL). Hands‑on experience with RESTful APIs, front‑end frameworks, and cloud platforms (AWS/Azure). Familiarity with CI/CD, version...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside...

Full job description Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Enterprise Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and...

The Cabinet Office supports the Prime Minister and ensures the effective running of government. The Cabinet Office is also the corporate headquarters for the government, in partnership with HM Treasury, and takes the lead in certain critical policy areas. More information about the Cabinet Office can be found on its website at: www.gov.uk/government/organisations/cabinet-office As a Principal Software Developer, your main responsibilities will be: Essential: You will be responsible for the development of frontend and backend services, applying a rigorous testing approach to ensure applications are functionally sound, secure, performant, and maintainable. You will design code to operate in different host environments, with the ability to effectively debug production issues. You will need to collaborate effectively in a fast-paced, agile environment with other technical and non-technical stakeholders, and proactively input technical detail to architectural designs and...

SC Clearance is an essential requirement for this role , as a minimum you must be willing & eligible to undergo checks. Please note, d ue to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance.   As a  Software Developer (JavaScript & Python) , your main responsibilities will be: Plan and lead development of sets of related user stories Find ways to improve system robustness, resilience and stability Design, code, test, and document software solutions Collaborate with other disciplines to fully understand the software requirements   Essential: Programming and build (software engineering).  You can collaborate with others, when necessary, to review specifications. You can use the agreed specifications to design, code,...

Contract Software Developer – AI‑Powered Portal Overview: Join us as a Contract Software Developer to build and optimize an AI‑powered portal. You will design, develop, and integrate secure, scalable features and APIs across cloud platforms in a fast‑paced, collaborative environment. Duties: Develop, test, and deploy high‑quality web applications and RESTful APIs for the portal. Integrate third‑party and custom APIs, ensuring secure, real‑time data exchange. Build intuitive front‑end interfaces and dashboards for AI‑driven features. Optimize performance and reliability on AWS/Azure and maintain existing services. Use Git‑based version control and Agile practices to deliver features iteratively. Skills: Strong experience with modern languages and web technologies (e.g., Java, C#, Python, JavaScript, SQL). Hands‑on experience with RESTful APIs, front‑end frameworks, and cloud platforms (AWS/Azure). Familiarity with CI/CD, version...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Enterprise Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550 - £600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops.   About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more...

Senior Java/React Full Stack Developer Location: London or Newcastle, UK (Hybrid - ~1 day per week in office / onsite) Contract: Contract - 6 months with view to extend Day Rate: £550 - £600 per day - Outside IR35 About Appvia Appvia is a specialist cloud, platform, and solutions engineering consultancy. We work with organisations to improve software quality, reliability, and delivery outcomes through modern engineering and testing practices. Our teams focus on reducing risk in complex systems by improving automated testing, architectural clarity, and developer feedback loops.   About the Role We are seeking a consultative Senior Software Developer in Test with hands-on experience in React and Java to join Appvia as a hands-on testing and quality engineering consultant. This role is centred on modernising automated test strategies for Java/React-based applications, moving away from brittle, heavyweight end-to-end testing towards more...

Contract Software Developer – AI‑Powered Portal Overview: Join us as a Contract Software Developer to build and optimize an AI‑powered portal. You will design, develop, and integrate secure, scalable features and APIs across cloud platforms in a fast‑paced, collaborative environment. Duties: Develop, test, and deploy high‑quality web applications and RESTful APIs for the portal. Integrate third‑party and custom APIs, ensuring secure, real‑time data exchange. Build intuitive front‑end interfaces and dashboards for AI‑driven features. Optimize performance and reliability on AWS/Azure and maintain existing services. Use Git‑based version control and Agile practices to deliver features iteratively. Skills: Strong experience with modern languages and web technologies (e.g., Java, C#, Python, JavaScript, SQL). Hands‑on experience with RESTful APIs, front‑end frameworks, and cloud platforms (AWS/Azure). Familiarity with CI/CD, version...

Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance.    As a  Software Developer (AI) , your main responsibilities will be: Design, develop, and maintain software applications that support operational needs. Design, code and test, software applications according to specifications and standards. Fix faults following agreed procedures and carry out agreed maintenance tasks on infrastructure. Effectively document all work using required standards, methods, and tools, including prototyping tools where appropriate. Work on more complex integration as part of a wider team. Prioritise and define approaches to understand...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work alongside...

Join the DataAnnotation team and contribute to developing cutting-edge AI systems, while enjoying the flexibility of remote work and setting your own schedule. We are looking for a proficient Enterprise Software Developer to help advance AI development. As a member of DataAnnotation’s coding team, you’ll be part of a growing community of over 100,000 professionals — including front-end, back-end, full-stack, machine learning, and other engineers — who are driving real-world impact in AI development. Our platform offers an engaging blend of flexibility and challenge: you’ll work closely with state-of the art AI models to take on programming tasks that include creating and solving challenging coding problems, building beautiful apps with rich functionality, and synthesizing insights through data analysis and visualization. Your work directly contributes to refining intelligent systems that learn, adapt, and evolve. Some team members fit this work...

Software Developer (Python / FastAPI / Azure) – Outside IR35 only. Contract length: 3 months (with potential extension) Rate: £200–£250 per day Location: Remote in North Lanarkshire (UK-based preferred with access to office if required). IR35 Status: Outside IR35 only Start: ASAP Job Summary We’re looking for a skilled contract Python developer to support ongoing delivery across a mix of client and internal projects. You’ll be building, extending, and maintaining APIs and complex backend services in a delivery-driven environment. You’ll be working closely with a small technical team, so clear communication and ownership are crucial. The initial contract is 3 months , with a possibility of extension depending on workload. Outside IR35 only - must be willing to work from a Private Limited Company / Ltd. Duties: Building and maintaining backend services using Python Developing APIs with FastAPI...

Please submit your CV in English and indicate your level of English proficiency. Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment. What this opportunity involves While each project involves unique tasks, contributors may: Design and maintain automated tests to ensure the quality, performance, and reliability of Kotlin and Android applications. Collaborate with developers to identify, reproduce, and resolve functional, performance, and UI issues across multiple environments. Define and improve quality standards across build pipelines, ensuring smooth CI/CD integrations and release stability. Monitor app behavior in production and use data xe2 driven insights to guide testing priorities and improvements. Apply professional judgment to assess AI responses. What we look for This opportunity is...

SC Clearance is an essential requirement for this role, as a minimum you must be willing & eligible to undergo checks. Please note, due to the exceptional requirements of this position (short-term nature of this role and speed at which we require a postholder in situ) preference may be given to candidates who meet all of the essential criteria and hold active security clearance.    As a  Software Developer , your main responsibilities will be: Design, develop, and maintain software applications that support operational needs. Design, code and test, software applications according to specifications and standards. Fix faults following agreed procedures and carry out agreed maintenance tasks on infrastructure. Effectively document all work using required standards, methods, and tools, including prototyping tools where appropriate. Work on more complex integration as part of a wider team. Prioritise and define approaches to understand the...

Competitive Daily Rate - Inside IR35 Initial 3 month contract All HMRC Locations   With 50 million customers to serve, over 60 thousand colleagues to support and £600 billion to collect to fund UK Services (such as our NHS, Education System, and much more), our IT operation is far-reaching and has a direct impact on the tax collection and supporting those in need. Here at HMRC we’re looking to enhance our IT for outbound customer communications by centralising document composition and clearly delineate responsibilities between our communications and IT departments The post has been created to support with Centralising one-off mailings into a single inhouse solution Developing a Proof of Concept for business users to change the content of customer communications   As a Quadient Software Developer, you will: Create and amend output, using Quadient (GMC) Inspire for composition and orchestration activities for both print...

Software Developer - Contract At TÜV SÜD we are passionate about technology. Innovations impact our daily lives in countless ways, and we are dedicated to being a part of that progress. We test, we audit, we inspect, we advise. We never stop challenging ourselves for the safety of society and its people. We breathe technology, we strive for professional excellence, and we leave a mark. We take the future into our hands. We are TÜV SÜD. As a contract engineer you will be developing a software-based solution to a specific set of business problems with the support of a small team of full-stack software engineers. This solution will be aimed at ensuring TUV SUD is well placed to deliver future services in a timely, efficient and competitive manner.  You will be developing software that will be used internally to support the business as we push to digitize and automate our internal processes. You will...

Contract Software Developer – AI‑Powered Portal Overview: Join us as a Contract Software Developer to build and optimize an AI‑powered portal. You will design, develop, and integrate secure, scalable features and APIs across cloud platforms in a fast‑paced, collaborative environment. Duties: Develop, test, and deploy high‑quality web applications and RESTful APIs for the portal. Integrate third‑party and custom APIs, ensuring secure, real‑time data exchange. Build intuitive front‑end interfaces and dashboards for AI‑driven features. Optimize performance and reliability on AWS/Azure and maintain existing services. Use Git‑based version control and Agile practices to deliver features iteratively. Skills: Strong experience with modern languages and web technologies (e.g., Java, C#, Python, JavaScript, SQL). Hands‑on experience with RESTful APIs, front‑end frameworks, and cloud platforms (AWS/Azure). Familiarity with CI/CD, version...