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91 freelance software developer jobs found

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Contract Spy
Mar 18, 2026
Hourly/Freelance
Systems Architect - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Systems Architect 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 a...
Contract Spy
Mar 18, 2026
Hourly/Freelance
Game Engine Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Game Engine 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...
Contract Spy
Mar 18, 2026
Duration not stated
Arduino Prototype Developer (Software & Hardware) at SafeDental, West Kirby/Remote, £Hourly Rate
Contract Spy Hybrid (Hilbre Ct, S Parade, West Kirby, Wirral CH48 3JU, UK)
Job Overview We are seeking a talented and motivated software & hardware developer to join in the prototyping, trials & final product development of a new device. The successful candidate will assist by supporting the originator with coding, construction, testing & developing the product, within the guidance & functional requirements that evolve. This role offers an excellent opportunity, for anyone locally situated, whether still studying or experienced, to work on an innovative project & to progress to sharing ownership of the resultant company. Responsibilities Analyse requirements and translate them into functional software. Source & construct components for prototyping. Develop & test, clean, efficient, code using AI systems & manual refinement. Collaborate with the developer to deliver seamless solutions. Opportunities This is a rare opportunity to assist in developing a technological solution to a medical...
Contract Spy
Mar 18, 2026
Hourly/Freelance
Software Engineer Analyst - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Engineer Analyst 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...
Contract Spy
Mar 18, 2026
Hourly/Freelance
Data Scientist - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Data Scientist 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 a...
Contract Spy
Mar 17, 2026
Hourly/Freelance
Mobile App Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Mobile App 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...
Contract Spy
Mar 17, 2026
Hourly/Freelance
Programming Analyst - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Programming Analyst 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...
Contract Spy
Mar 17, 2026
Hourly/Freelance
UI/UX Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 UI/UX 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 a...
Contract Spy
Mar 17, 2026
Hourly/Freelance
Web Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Web 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 a...
Contract Spy
Mar 17, 2026
Hourly/Freelance
Quality Assurance Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Quality Assurance 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...
Contract Spy
Mar 16, 2026
Duration not stated
Delphi Developer at Test Yantra Software Solutions Private Limited, London, £500 per day
£500 per day
Contract Spy London, UK
Role Overview We are looking for a Senior Delphi Developer with deep expertise in Delphi 10.4 or later , strong understanding of software development life cycle (SDLC) , and hands-on experience in Oracle PL/SQL and RDBMS . The ideal candidate will be responsible for designing, developing, and maintaining enterprise-grade business applications, while also contributing to build automation and deployment processes using tools such as TeamCity and Octopus . This role requires excellent debugging skills, experience in developing custom controls, and collaboration with cross-functional teams to deliver robust and scalable software solutions. Experience: 10–14 years Key Responsibilities Design, develop, and maintain business applications using Delphi 10.4 or newer versions . Participate in the full Software Development Life Cycle (SDLC) — from requirements gathering to deployment and support. Configure and maintain automated build and deployment pipelines using...
Contract Spy
Mar 16, 2026
Hourly/Freelance
API Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 API 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 a...
Contract Spy
Mar 16, 2026
Hourly/Freelance
AI/ML Developer - AI Trainer at DataAnnotation, Remote, £Contract Rate
Contract Spy Remote
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 AI/ML 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 a...
Contract Spy
Mar 16, 2026
Hourly/Freelance
Front-End Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Front-End 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...
Contract Spy
Mar 13, 2026
Duration not stated
Senior Software Developer at The Cosec House, United Kingdom, £250 a day
£250 per day
Contract Spy United Kingdom
At The Cosec House, we provide expert company secretarial services to businesses across the UK. Our mission is to simplify corporate governance through smart automation and user-friendly software that saves our clients time and ensures full compliance. We are seeking an experienced Senior Software Developer to join our growing team. You’ll play a key role in the continued development of our Laravel-based platform, which automates and streamlines company secretarial workflows. A major focus of this role is the modernisation of functionality from a legacy system. You’ll be responsible not just for building features, but for understanding existing processes and code, reviewing how they operate today, planning the work required to recreate and improve them on the new platform, and then delivering those improvements end-to-end. This is a hands-on role with a strong emphasis on technical ownership, planning, and structured delivery. You’ll help shape how work is broken down into...
Contract Spy
Mar 11, 2026
Duration not stated
Arduino prototype developer at SafeDental (Morley), West Kirby and Thurstaston CH48 3JU, £Contract Rate
Contract Spy Hilbre Ct, S Parade, West Kirby, Wirral CH48 3JU, UK
Job Overview We are seeking a talented and motivated software & hardware developer to join in the prototyping, trials & final product development of a new device. The successful candidate will assist by supporting the originator with coding, construction, testing & developing the product, within the guidance & functional requirements that evolve. This role offers an excellent opportunity, for anyone locally situated, whether still studying or experienced, to work on an innovative project & to progress to sharing ownership of the resultant company. Responsibilities Analyse requirements and translate them into functional software. Source & construct components for prototyping. Develop & test, clean, efficient, code using AI systems & manual refinement. Collaborate with the developer to deliver seamless solutions. Opportunities This is a rare opportunity to assist in developing a technological solution to a medical...
Contract Spy
Mar 10, 2026
Duration not stated
Power Platform Developer at Test Yantra, London, £300-£330 per day
£300 - £330 per day
Contract Spy London, UK
Job Description: 6+ years exp with Power Platform development Extensive experience in building workflows using Power automate and experience in using Power Apps Power BI experience is a nice to have Exp in automating process workflows and demonstrating the benefits of automating the workflows Exp in design, development, integration, Coding, Unit & Integration testing, deployment Exp in integrating Power Platform solutions with other systems Ability to work autonomously and in collaboration with business and IT stakeholders Experience working in an Agile environment Job Type: Freelance Pay: £300.00-£330.00 per day
Contract Spy
Mar 10, 2026
Hourly/Freelance
Web Developer- AI Trainer at DataAnnotation, Remote, From £29.61 an hour
£200 - £240 per day
Contract Spy Remote (London, UK)
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  Web 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...
Contract Spy
Mar 06, 2026
Duration not stated
Software Developer at Glocal Corporate Research & Investigations Pvt Ltd, Kilmarnock, £Contract Rate
Contract Spy Kilmarnock, UK
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...
Contract Spy
Mar 05, 2026
Hourly/Freelance
Back End Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote
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 Back End 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...
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