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50 mobile app developer jobs found

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Contract Spy
Jan 12, 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
Jan 05, 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
Dec 24, 2025
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
Jan 12, 2026
up to 6 Months
Mobile App Developer at Medilogic, Remote, 3 Months, £Contract Rate
Contract Spy Remote
Job Overview We are seeking a talented and motivated Application Developer to join our dynamic IT team. The successful candidate will be responsible for designing, developing, and maintaining innovative mobile applications across multiple platforms, including Android and iOS. This role offers an exciting opportunity to work on cutting-edge projects, utilise a broad range of programming languages and frameworks, and contribute to enhancing user experience through effective application development. The position is paid and suitable for individuals with a passion for creating seamless, user-friendly applications. Duties Develop, test, and deploy mobile applications for Android and iOS platforms using languages such as Java, Kotlin, Swift, Objective-C, C#, and JavaScript. Collaborate with cross-functional teams to define application requirements and translate them into technical specifications. Integrate third-party APIs and RESTful services to enhance application...
Contract Spy
Jan 16, 2026
up to 6 Months
Senior Optimizely Developer at CI&T, London, £Contract Rate
Contract Spy London, England, United Kingdom
We are tech transformation specialists, uniting human expertise with AI to create scalable tech solutions.   With over 8,000 CI&Ters around the world, we’ve built partnerships with more than 1,000 clients during our 30 years of history. Artificial Intelligence is our reality.    We are currently seeking a talented Developer with strong expertise in Optimizely to join our team for a 2-month contract.   Key Responsibilities: Collaborate with the development team to implement and optimize solutions using Optimizely. Leverage strong Optimizely experience to enhance our CMS capabilities. Participate in community discussions and contribute to best practices within the Optimizely ecosystem. Develop and maintain applications in hybrid and headless Optimizely CMS modes. Work with the latest CMS version 12 and provide insights based on practical experience. Assist in testing and providing feedback on the...
Contract Spy
Jan 15, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London, £Freelance Rate
Contract Spy 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...
Contract Spy
Jan 14, 2026
Duration not stated
Senior Front End Developer at Bridebook, Remote, £Competitive Day Rate
Contract Spy Remote
Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...
Contract Spy
Jan 09, 2026
6 Months or more
Full Stack Web Developer at Brightbulb Design, Isle Of Wight, 12 Months, £Competitive Rate
Contract Spy Isle Of Wight, England, United Kingdom
About Brightbulb Brightbulb is a creative digital agency delivering thoughtful, high-quality websites, applications, and digital experiences for a wide range of clients. We pride ourselves on clean code, strong collaboration, and building solutions that are both elegant and practical. The Role We’re looking for a highly competent Full Stack Web Developer to join us on a 12-month contract. You’ll work closely with designers and project managers to deliver bespoke web solutions, primarily using PHP, WordPress, and Laravel, while contributing to technical decisions across projects. This is a hands-on role suited to someone comfortable working across the full stack — from backend architecture and databases to polished, responsive front-end builds. Key Responsibilities Develop and maintain bespoke WordPress themes and plugins (no page builders) Build and support Laravel-based applications Write clean, secure, and maintainable PHP Collaborate...
Contract Spy
Jan 08, 2026
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London, £Freelance Rate
Contract Spy 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...
Contract Spy
Jan 07, 2026
Duration not stated
Senior Front End Developer at Bridebook, Remote, £Competitive Day Rate
Contract Spy Remote
Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...
Contract Spy
Dec 31, 2025
Hourly/Freelance
Software Developer (Java) - Quality Assurance (AI Trainer) at Mindrift, Remote, £Freelance Rate
Contract Spy Remote (United Kingdom)
This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency. At Mindrift, innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI. 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 GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as an AI Tutor in Coding, you'll have the opportunity to collaborate on these projects. Although every project is unique, you might typically: Code generation and code review Prompt evaluation and...
Contract Spy
Dec 31, 2025
Hourly/Freelance
Android Developer for Digital Asset Marketplace App at Fliprly, London, £Freelance Rate
Contract Spy 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...
Contract Spy
Dec 30, 2025
Duration not stated
Senior Front End Developer at Bridebook, Remote, £Competitive Day Rate
Contract Spy Remote
Senior Front-End React Developer At Bridebook, we're digitising the wedding industry! Join us in transforming the wedding planning experience for engaged couples around the world. Full-time Contractor · Remote · Competitive Day Rate Who is Bridebook anyway? Bridebook is a revolutionary wedding planning platform that seeks to make wedding planning an enjoyable, intuitive, and rewarding experience for couples, guests, and industry partners. Launched in the UK, Bridebook has over 1,000,000 planning couples and has been featured in major outlets such as the New York Times, the BBC, and the App Store. After seven years and many iterations later, we have 2 in 3 engaged UK couples and 1 in 3 engaged German couples using Bridebook, and have recently expanded into the French and Irish markets. While we serve a very emotional and creative industry, we are disrupting the wedding industry by leveraging cutting-edge technology to provide seamless and...
Contract Spy
Jan 16, 2026
Hourly/Freelance
Senior Game Developer at Voodoo, Remote, £Freelance Rate
Contract Spy Remote
About Voodoo Founded in 2013, Voodoo is a tech company that creates mobile games and apps with a mission to entertain the world. Gathering 800 employees, 7 billion downloads, and over 200 million active users, Voodoo is the #3 mobile publisher worldwide in terms of downloads after Google and Meta. Our portfolio includes chart-topping games like Mob Control and Block Jam, alongside popular apps such as BeReal and Wizz. This position can be Paris-based, Barcelona-based, Amsterdam-based, or fully remote within CET +/-2h.   Team Our Gaming team is made up of hybrid-casual, casual, and mid-core experts. Our 'Core' games team supports internal and external studios worldwide in creating, developing, and launching new hit games, whilst our 'Live' games team focuses on delivering higher engagement on our existing and successful games. Joining our Live games team means collaborating with gaming industry experts on globally renowned, enduring games while...
Contract Spy
Jan 16, 2026
Duration not stated
Project Manager (Connected Services) at Honda Motor Europe Ltd, Bracknell, £Contract Rate
Contract Spy Bracknell, England, United Kingdom
At Honda we embrace inclusion in our various policies, so whilst our contracts state that the hours are as required to fulfil the role with a minimum of 35 hours per week, we offer flexibility for when you work. The regular office hours are 08:00 – 16:00 Monday to Thursday with a half hour lunch break & 08:00 – 13:00 on a Friday. However, we offer flexibility of when you work with our daily flex-time start of between 07:00 and 11:00 providing that there is no business requirement. Whilst there is no contractual right to work from home, the flexibility we offer is that you can request to work from home 2 days per week, again providing there is no business requirement to attend the office. Role Responsible for the successful delivery of key artefacts required for the GC5.0 Programme of work. This includes planning, execution, and delivery of activities in collaboration with internal stakeholders, HM and external development partners. The role requires strong...
Contract Spy
Jan 16, 2026
Hourly/Freelance
Crypto Mobile Application Developer - React Native at Token Metrics Inc., Remote, £Hourly Rate
Contract Spy Remote
  We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.   Responsibilities   Build pixel-perfect, buttery smooth UIs across both mobile platforms. Leverage native APIs for deep integrations with both platforms. Diagnose and fix bugs and performance bottlenecks for performance that feels native. Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things. Maintain code and write automated tests to ensure the product is of the highest...
Contract Spy
Jan 15, 2026
Duration not stated
Web Designer – HTML & CSS (Single Page Landing Pages) at Fliprly, Remote, £Contract Rate
Contract Spy Remote
Company: Fliprly.com – The World’s Best Domain Marketplace Portal Location: Remote Employment Type: Freelance/Full-Time/Part-Time (Flexible options available) About Us: Fliprly.com is the world’s leading marketplace for buying and selling domains, websites, and mobile apps. As we continue to expand our platform, we’re looking for a creative and detail-oriented Web Designer to join our dynamic team. Your work will directly impact the user experience by creating stunning single-page landing pages that attract and convert our audience. Job Overview: We are seeking a skilled Web Designer with expertise in HTML and CSS to craft visually appealing and highly functional single-page landing pages. You will be responsible for translating our branding and marketing needs into compelling designs that drive engagement and conversions. Key Responsibilities: Design and develop visually appealing single-page landing pages using HTML and CSS . Ensure...
Contract Spy
Jan 15, 2026
Duration not stated
iPhone/iPad App Tester at Fliprly, Remote, £Contract Rate
Contract Spy Remote
Location: Remote Job Type: Freelance on Hourly Rate. Company Overview: At Fliprly , we are dedicated to delivering world-class mobile applications that prioritize functionality, user experience, and reliability. We’re seeking a detail-oriented and experienced iPhone App Tester to join our team. This role is ideal for someone who is passionate about mobile apps, possesses a sharp eye for detail, and enjoys uncovering bugs and usability issues. Key Responsibilities: Perform comprehensive testing of iPhone and iPad applications, including functionality, features, and UI/UX. Conduct end-to-end app testing, ensuring all features work seamlessly across iOS devices running version 15.0 or later. Test in-app purchase flows to verify successful transactions and error handling. Identify, report, and document bugs, glitches, and inconsistencies with detailed steps and evidence (screenshots, recordings, logs). Collaborate with developers and designers to ensure...
Contract Spy
Jan 15, 2026
Hourly/Freelance
Full Stack Interactive Platform Developer at Oxyile Corporation Limited, Remote, Short-Term, £Freelance Rate
Contract Spy Remote
We are seeking an experienced and creative web developer for the position of Full Stack Interactive Platform Developer (Freelance). Your primary role will be to build a modern, engaging, and fully functional game-based platform for our website. This platform will be the central hub for people to understand how lending and borrowing platform works. Platform must be multiplayer where they can interact. Project Overview & Scope The core requirement is to develop a robust, scalable, and visually appealing web platform that can host and manage multiple interactive games. Key Features Required: User Authentication: Secure login/registration, and persistent user profiles. Game Module Integration: Ability to host at least 2 initial HTML5/JavaScript games within the platform interface. Real-Time Leaderboards: A system to track and display user scores across all games, updated in real-time. Database Integration: Implementation of a robust backend (e.g.,...
Contract Spy
Jan 15, 2026
Duration not stated
Senior Full Stack Engineer at AND Digital, Bristol, £Contract Rate
Contract Spy Bristol, UK
Who we are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. We’ve been helping organisations build better digital products and stronger digital teams since 2014. We believe our work should always make a remarkable impact for our clients. We do this through our regional offices (or ‘Clubs’) building strong relationships with our partners, so that they are always prioritised by a team within close proximity. This unique model has driven success for our clients and ourselves, evidenced by our remarkable organic growth since 2014. Today we number more than 1,300 people with Clubs all over the UK, Europe and the USA with plans for global expansion in the next couple of years. About the Role: Design, document, and evolve architecture, ensuring modularity, scalability, resilience, and extensibility across micro-frontends and microservices. Lead end-to-end system design,...
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