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19 api developer jobs found

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United Kingdom Hourly/Freelance api developer
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Contract Spy
May 21, 2026
Hourly/Freelance
Integration Developer (API Specialist) - AI Trainer at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled Integration Developers (API Specialists) to join the Tendem project (https://tendem.ai/) and build robust system integrations within our hybrid AI + human environment. In this role, as an AI Pilot - that's how we refer to this position at Mindrift - you'll collaborate with Tendem Agents that handle repetitive tasks, while you provide system integration expertise, structured thinking, and quality control to ensure reliable and scalable data connectivity across platforms. This part-time remote opportunity is ideal for professionals with hands-on experience in APIs, webhooks, and building multi-system data pipelines. What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe. About the Role This is a freelance role for a Tendem project. As an Integration Developer (API Specialist),...
Contract Spy
Jun 09, 2026
Hourly/Freelance
Full-Stack Web App Developer at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project (https://tendem.ai/) and build interactive browser-based applications within our hybrid AI + human environment. In this role, as an AI Pilot - that 's how we refer to this position at Mindrift - you 'll collaborate with Tendem Agents that handle repetitive tasks, while you provide full-stack engineering expertise, architectural judgment, and quality control to ensure web apps are functional, robust, and ready for real users. This part-time remote opportunity is ideal for professionals with hands-on experience in modern frontend frameworks, backend APIs, databases, and shipping interactive web products end-to-end.   What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.  ...
Contract Spy
Jun 04, 2026
Hourly/Freelance
AI Native Shopify Developer at ZOEVA GmbH, Remote, 6-12 Months, £Freelance Rate
Contract Spy Remote (United Kingdom)
Job Title: AI-Native Shopify Developer (Freelance, 6–12 months) Department: Technology Location: Remote Position Type: Freelance · Project-based · Shopify Plus   Job Description: ZOEVA is a prestige EU+UK beauty brand with a fast-scaling DTC business on Shopify Plus. We run lean, move fast, and operate with AI embedded across our workflows — from analytics to campaign execution. We are looking for a senior Shopify developer who actively uses AI tools such as Claude Code and Codex as a core part of their development workflow — not as add-ons, but as the foundation of how they build, iterate, and ship code. This role involves taking AI-generated concepts, prototypes, or functional ideas and transforming them into clean, production-grade Shopify implementations that perform in a live environment.   Key Responsibilities: Architect and build within Shopify Plus across...
Contract Spy
May 28, 2026
Hourly/Freelance
Full-Stack Web App Developer at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled Full-Stack Web App Developers (JavaScript/TypeScript + Python or Node) to join the Tendem project (https://tendem.ai/) and build interactive browser-based applications within our hybrid AI + human environment. In this role, as an AI Pilot - that 's how we refer to this position at Mindrift - you 'll collaborate with Tendem Agents that handle repetitive tasks, while you provide full-stack engineering expertise, architectural judgment, and quality control to ensure web apps are functional, robust, and ready for real users. This part-time remote opportunity is ideal for professionals with hands-on experience in modern frontend frameworks, backend APIs, databases, and shipping interactive web products end-to-end.   What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.  ...
Contract Spy
Jun 02, 2026
Hourly/Freelance
Bot Developer at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled Bot Developers (WhatsApp Business API, Telegram Bot API, Discord API) to join the Tendem project (https://tendem.ai/) and build conversational bots and messaging-platform integrations within our hybrid AI + human environment. In this role, as an AI Pilot - that 's how we refer to this position at Mindrift - you 'll collaborate with Tendem Agents that handle repetitive tasks, while you provide bot engineering expertise, conversational design judgment, and quality control to ensure bots are reliable, useful, and ready for real users. This part-time remote opportunity is ideal for professionals with hands-on experience building messaging bots, working with platform APIs and webhooks, and implementing conversational logic.   What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe....
Contract Spy
Jun 09, 2026
Hourly/Freelance
Mobile App Developer (iOS/Android) at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
Mindrift is looking for skilled Mobile App Developers (React Native, Flutter, Swift, or Kotlin) to join the Tendem project (https://tendem.ai/) and build native and cross-platform mobile applications within our hybrid AI + human environment. In this role, as an AI Pilot - that 's how we refer to this position at Mindrift - you 'll collaborate with Tendem Agents that handle repetitive tasks, while you provide mobile engineering expertise, platform-specific judgment, and quality control to ensure apps are stable, performant, and ready for real users on real devices. This part-time remote opportunity is ideal for professionals with hands-on experience shipping iOS and/or Android apps, working with platform APIs, and handling the full mobile development lifecycle.   What We Do The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the...
Contract Spy
Jun 03, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London/Remote, £Freelance Rate
Contract Spy Hybrid (London, UK)
About Fliprly Fliprly is the world’s first and only mobile app dedicated to buying and selling domains, websites, mobile apps, and other digital assets. Our iOS app and web platform are live, and we’re now ready to expand our reach with a robust Android app. Join us on this exciting journey to revolutionize the digital asset marketplace! What We’re Looking For We’re seeking a skilled Android Developer (freelancer or agency) to build the Android version of Fliprly from scratch. You’ll work closely with our existing team and leverage our iOS/web apps as references for functionality and design consistency. Responsibilities Build a high-performance Android app using Java. Translate our iOS design and features into the Android ecosystem. Integrate APIs and backend services (already available). Ensure a smooth, responsive, and bug-free user experience. Requirements Proven experience building Android apps (at...
Contract Spy
May 27, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London/Remote, £Freelance Rate
Contract Spy Hybrid (London, UK)
About Fliprly Fliprly is the world’s first and only mobile app dedicated to buying and selling domains, websites, mobile apps, and other digital assets. Our iOS app and web platform are live, and we’re now ready to expand our reach with a robust Android app. Join us on this exciting journey to revolutionize the digital asset marketplace! What We’re Looking For We’re seeking a skilled Android Developer (freelancer or agency) to build the Android version of Fliprly from scratch. You’ll work closely with our existing team and leverage our iOS/web apps as references for functionality and design consistency. Responsibilities Build a high-performance Android app using Java. Translate our iOS design and features into the Android ecosystem. Integrate APIs and backend services (already available). Ensure a smooth, responsive, and bug-free user experience. Requirements Proven experience building Android apps (at...
Contract Spy
May 19, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London/Remote, £Freelance Rate
Contract Spy Hybrid (London, UK)
About Fliprly Fliprly is the world’s first and only mobile app dedicated to buying and selling domains, websites, mobile apps, and other digital assets. Our iOS app and web platform are live, and we’re now ready to expand our reach with a robust Android app. Join us on this exciting journey to revolutionize the digital asset marketplace! What We’re Looking For We’re seeking a skilled Android Developer (freelancer or agency) to build the Android version of Fliprly from scratch. You’ll work closely with our existing team and leverage our iOS/web apps as references for functionality and design consistency. Responsibilities Build a high-performance Android app using Java. Translate our iOS design and features into the Android ecosystem. Integrate APIs and backend services (already available). Ensure a smooth, responsive, and bug-free user experience. Requirements Proven experience building Android apps (at...
Contract Spy
May 12, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London/Remote, £Freelance Rate
Contract Spy Hybrid (London, UK)
About Fliprly Fliprly is the world’s first and only mobile app dedicated to buying and selling domains, websites, mobile apps, and other digital assets. Our iOS app and web platform are live, and we’re now ready to expand our reach with a robust Android app. Join us on this exciting journey to revolutionize the digital asset marketplace! What We’re Looking For We’re seeking a skilled Android Developer (freelancer or agency) to build the Android version of Fliprly from scratch. You’ll work closely with our existing team and leverage our iOS/web apps as references for functionality and design consistency. Responsibilities Build a high-performance Android app using Java. Translate our iOS design and features into the Android ecosystem. Integrate APIs and backend services (already available). Ensure a smooth, responsive, and bug-free user experience. Requirements Proven experience building Android apps (at...
Contract Spy
Jun 09, 2026
Hourly/Freelance
Full Stack Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote (United Kingdom)
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 proficient programmers 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 full-time...
Contract Spy
May 26, 2026
Hourly/Freelance
C++ 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 C++ Developer - AI Trainer 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
May 18, 2026
Hourly/Freelance
Full Stack Developer - AI Trainer at DataAnnotation, Remote, £Hourly Rate
Contract Spy Remote (United Kingdom)
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 proficient programmers 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 full-time...
Contract Spy
Jun 05, 2026
Hourly/Freelance
Artificial Intelligence Tutor at LONDON VESTA COLLEGE, London, £Freelance Rate
£100 - £200 per day
Contract Spy London E1 5HZ, UK
Freelance Hybrid Flexible Working We are seeking an experienced and knowledgeable Freelance AI Tutor to deliver high-quality, engaging training aligned to the Artificial Intelligence (AI) and Automation Practitioner Apprenticeship Standard. This role is ideal for an industry professional with strong commercial experience in AI, automation, data, or digital technologies, combined with proven teaching or training delivery experience. The successful candidate must be capable of equipping apprentices with current industry knowledge, practical technical skills, and professional workplace behaviours relevant to modern AI and automation roles. Role Overview You will deliver a blend of practical and theoretical training covering core AI and automation concepts. This includes machine learning fundamentals, data handling, automation technologies, and the ethical and responsible use of AI solutions within business environments. Training delivery will include:...
Contract Spy
Jun 01, 2026
Hourly/Freelance
Senior Web Engineer at Human Made, United Kingdom, £Freelance Rate
Contract Spy United Kingdom
Freelancing at Human Made Join Human Made as a freelancer and you'll feel like part of the team. You'll be working on interesting and complex projects, alongside some of the industry's top talent. We're fully remote, and have been for over 10 years, so you can expect well established ways of working, and a vibrant online culture. It's no wonder that freelancers often choose to join our team on a more permanent basis. Once you are qualified, you'll be added to our freelance talent pool, and be invited to projects that suit your availability and expertise as soon as they become available, which might not be immediately. Nevertheless, you will integrate as part of the team, so you are expected to join team meetings and activities (although we have a strong emphasis on asynchronous communication) once you start participating in projects. About Us Human Made is a globally distributed company that helps organisations drive customer engagement, reinforce brand value and improve...
Contract Spy
May 29, 2026
Hourly/Freelance
Artificial Intelligence Tutor at LONDON VESTA COLLEGE, London, £Freelance Rate
£100 - £200 per day
Contract Spy London E1 5HZ, UK
Freelance Hybrid Flexible Working We are seeking an experienced and knowledgeable Freelance AI Tutor to deliver high-quality, engaging training aligned to the Artificial Intelligence (AI) and Automation Practitioner Apprenticeship Standard. This role is ideal for an industry professional with strong commercial experience in AI, automation, data, or digital technologies, combined with proven teaching or training delivery experience. The successful candidate must be capable of equipping apprentices with current industry knowledge, practical technical skills, and professional workplace behaviours relevant to modern AI and automation roles. Role Overview You will deliver a blend of practical and theoretical training covering core AI and automation concepts. This includes machine learning fundamentals, data handling, automation technologies, and the ethical and responsible use of AI solutions within business environments. Training delivery will include:...
Contract Spy
May 28, 2026
Hourly/Freelance
ASO Manager (iOS/Android) at DEPT, London Canary Wharf, 6 Months, £Freelance Option
Contract Spy Canary Wharf, London, UK
ASO Manager (6m FTC/Freelance) DEPT® is a Growth Invention company built to help the world’s most ambitious brands grow faster. Operating at the intersection of technology and marketing, our 4,000+ specialists deliver growth invention services across Brand & Media, Experience, Commerce, CRM, and Technology & Data. We’re 50|50 tech and marketing, partner-led, and first to move. Clients include Google, Lufthansa, Meta, eBay, and OpenAI. We have been certified B Corp and Climate Neutral since 2021. JOB PURPOSE This is an embedded role working directly within the marketing team of a leading consumer mobile app brand, based at their offices in Canary Wharf. We are open to either a 6 month fixed-term contract, or freelance engagement, for 2–3 days per week, with the potential to extend. As an ASO Specialist, you will lead and optimise the app store presence across both iOS and Android platforms, helping drive organic visibility,...
Contract Spy
May 28, 2026
Hourly/Freelance
Senior Software Engineer AI at Moneyfarm, England, 12 Months, £Freelance Rate
Contract Spy England, UK
Who we are: We are a rapidly growing pan-European digital wealth manager, serving over 167,000 active investors with more than £5.5 billion invested on our platform. We began in Milan in 2011 with the purpose to help more people improve their financial well-being by making personal investing simple and accessible through technology. Fast forward to today, and we are recognised as one of the most innovative fintechs, headquartered in the heart of London. With a team of 220+ people across 4 offices in Italy and the UK, we are proudly backed and funded by major partners including Poste Italiane, Cabot Square Capital, United Ventures, and Allianz. Our vision Our vision is to combine passion, expertise, and technology to provide best-in-class investment solutions and advice that protects and grows client wealth over time. Our Core Values: We've built our business on three Principles: Relationships are our first asset: We're one team, built on trust,...
Contract Spy
May 21, 2026
Hourly/Freelance
Artificial Intelligence Tutor at LONDON VESTA COLLEGE, London, £Freelance Rate
£100 - £200 per day
Contract Spy London E1 5HZ, UK
Freelance Hybrid Flexible Working We are seeking an experienced and knowledgeable Freelance AI Tutor to deliver high-quality, engaging training aligned to the Artificial Intelligence (AI) and Automation Practitioner Apprenticeship Standard. This role is ideal for an industry professional with strong commercial experience in AI, automation, data, or digital technologies, combined with proven teaching or training delivery experience. The successful candidate must be capable of equipping apprentices with current industry knowledge, practical technical skills, and professional workplace behaviours relevant to modern AI and automation roles. Role Overview You will deliver a blend of practical and theoretical training covering core AI and automation concepts. This includes machine learning fundamentals, data handling, automation technologies, and the ethical and responsible use of AI solutions within business environments. Training delivery will include:...
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