Permanent Cross-Platform Development Jobs in the UK

1 to 25 of 108 Permanent Cross-Platform Development Jobs in the UK

React Native Developer

Coventry, England, United Kingdom
Whitehall Resources Ltd
The Role: Join a transformative retail journey by leveraging cutting-edge technologies like React Native and Redux to build impactful mobile solutions. Collaborate with top talent across mobile development, UX/UI design, and product teams to create seamless user experiences that enhance customer engagement. Thrive in a fast-paced environment that values creativity, experimentation, and continuous improvement … and recommend improvements. Code Optimization & Best Practices: Write and optimize JavaScript/TypeScript code, ensuring quality, maintainability, and scalability using best practices and design patterns. Cross-Platform Development: Develop applications for both iOS and Android platforms, ensuring consistent functionality and user experience. Collaboration: Work with UX/UI designers, product managers, and … pipelines (e.g., GitHub Actions) Proficiency in JSX and component design Experience with cloud services like AWS/Azure GitHub version control skills Effective communication and collaboration skills Cross-platform development expertise Problem-solving and analytical thinking Deep knowledge of JavaScript and TypeScript, including ES6+ Experience with third-party dependencies and debugging Familiarity with native More ❯
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MOBILE APPS DEVELOPER (iOS & Android)

Guildford, Surrey, United Kingdom
Petroleum Experts
PE Limited is a leading company specializing in the development and delivery of advanced geoscience and engineering software products, along with exceptional technical support for various energy and subsurface industries. As a market leader in integrated engineering and software solutions, we provide cutting-edge modeling and optimization products primarily to the global oil, gas, and mining sectors. Our … our systems. Qualifications A Bachelor's degree (BSc) in Computing Science, Computer Games Development, Geology, Engineering, or a related field. Proficiency in iOS or Android platform development skills; experience in both is preferable. Strong numerical, problem-solving, and organizational skills. Experience in C, C++, or Java programming, with a focus on object-oriented design. … of any/several of the following will be ideal: Familiarity with the Android Native UI or iOS Objective-C UI components. Familiarity with .NET MAUI for cross-platform development. Experience using Android Studio IDE (Windows) or Xcode IDE (macOS). Qt mobile GUI development skills using Qt, Qt Quick, or QML. Experience developing More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Software Engineer

City of London, London, United Kingdom
Searchability®
Platform/Unit Testing 2 days per week on site - multiple UK locations 07719 051889//ryan.horne@searchability.com About Us: The Engine team drives the development and evolution of our Documents & Biometrics digital identity verification product. This cutting-edge solution utilizes AI technologies for intelligent document processing, serving as the core engine behind our platform. … to-date knowledge in all stages of the SDLC and domain expertise. Ensure high-quality, high-performing code through rigorous testing and code review processes. Contribute to cross-platform development (Windows, Linux, Android, iOS, Mac) using CMake. Utilize unit testing frameworks like GTest/Catch and open-source libraries such as Boost and OpenCV. … the team. What We're Looking For: Proven experience in software development in a commercial environment. Strong proficiency in modern C++ development and cross-platform development. Familiarity with unit testing frameworks, open-source libraries, and code review processes. Working knowledge of .NET Core, Restful API, and scripting languages. Passion for problem-solving More ❯
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Software Engineer

London Area, United Kingdom
Searchability®
Platform/Unit Testing 2 days per week on site - multiple UK locations 07719 051889//ryan.horne@searchability.com About Us: The Engine team drives the development and evolution of our Documents & Biometrics digital identity verification product. This cutting-edge solution utilizes AI technologies for intelligent document processing, serving as the core engine behind our platform. … to-date knowledge in all stages of the SDLC and domain expertise. Ensure high-quality, high-performing code through rigorous testing and code review processes. Contribute to cross-platform development (Windows, Linux, Android, iOS, Mac) using CMake. Utilize unit testing frameworks like GTest/Catch and open-source libraries such as Boost and OpenCV. … the team. What We're Looking For: Proven experience in software development in a commercial environment. Strong proficiency in modern C++ development and cross-platform development. Familiarity with unit testing frameworks, open-source libraries, and code review processes. Working knowledge of .NET Core, Restful API, and scripting languages. Passion for problem-solving More ❯
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Staff Software Engineer, Mozilla VPN Remote UK

United Kingdom
Hybrid / WFH Options
Mozilla Corporation
build and distribute open-source software that enables people to enjoy the internet on their terms. About this team and role: What you'll do: Drive the architecture, development, and optimization of the Mozilla VPN client across platforms (Windows, macOS, Linux, iOS, Android). Work closely with cross functional colleagues, providing technical insight to drive feature … role, you will contribute to the suite of products that make up the Mozilla VPN project, including browser extensions, browser integrations, and the Mozilla VPN client-a cross-platform application available on Windows, macOS, Linux, iOS, and Android. You will be responsible for implementing new features as well as improving the performance and the reliability of … proficiency in C/C++ Expertise in networking protocols and privacy and security best practices Extensive knowledge of core OS concepts of Windows or Mac Experience developing cross-platform applications (Windows, macOS, Linux, iOS, Android) Experience debugging network related problems with Wireshark, tcpdump, or similar tools Excellent communication skills and experience mentoring engineers Bonus points: Experience More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

React Native Developer

Coventry, England, United Kingdom
Avance Consulting
of a transformative retail journey where you'll leverage cutting-edge technologies like React Native and Redux to build impactful mobile solutions. Collaborate with top talent in mobile development, UX/UI design, and product teams to create seamless user experiences that drive customer engagement. Thrive in a fast-paced, innovative environment that values creativity, experimentation, and continuous … improvement, while applying your advanced mobile development skills to drive innovation and business value at a retail leader. Your responsibilities: Mobile App Development: Develop, optimize, and maintain React Native apps to deliver high-quality, performant, and scalable mobile experiences. Monitoring & Troubleshooting: Monitor and troubleshoot production mobile applications to ensure performance, reliability, and responsiveness. Team Collaboration: Foster … and continuous learning. Technology Updates: Stay updated with the latest trends and technologies in mobile development and recommend improvements for app performance and user experience. Cross-Platform Development: Develop cross-platform mobile applications using React Native, ensuring consistent functionality and user experience on both iOS and Android. Cross More ❯
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Senior Software Engineer, Mozilla VPN

London, England, United Kingdom
Hybrid / WFH Options
Mozilla
role, you will contribute to the suite of products that make up the Mozilla VPN project, including browser extensions, browser integrations, and the Mozilla VPN client—a cross-platform application available on Windows, macOS, Linux, iOS, and Android. You will be responsible for implementing new features as well as improving the performance and the reliability of … actively seeks opinions and ideas from their team members, including those with varied experiences and perspectives to improve more collective results. What you’ll do: Contribute to the development and optimization of the Mozilla VPN client across platforms (Windows, macOS, Linux, iOS, Android). Contribute to the Mozilla VPN extension for Firefox. Own features and collaborate cross … resolve software defects What you’ll bring: 6+ years of software engineering experience High level of proficiency in C++, Javascript, and full-stack web development. Experience developing cross-platform applications (Windows, macOS, Linux, iOS, Android) An understanding of privacy and security principles and best-practices Excellent communication skills and experience mentoring engineers Bonus points: Experience developing More ❯
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Web / Mobile Developer

Southampton, England, United Kingdom
Quilter
Mobile UX solutions using React, TypeScript, Next.js, and Ionic. Collaborate with UX designers to translate wireframes into polished implementations. Create and maintain component documentation using Storybook. Develop cross-platform features with Ionic framework. Write clean, maintainable code following team standards and best practices. Develop and maintain test coverage. Participate in code reviews and technical discussions. Work … within agile teams, participating in ceremonies and continuous improvement. Collaborate with backend teams on API integration. Act as a subject matter expert for UI/Mobile development within the Digital … teams. About You Experience in designing, developing, and maintaining mobile applications for iOS and Android, and Next.js applications. Proficiency in React and Next.js. Familiarity with hybrid/cross-platform development (Ionic). Experience with state management solutions (e.g., Context API). Understanding of version control using GitHub. Experience with frontend testing (Jest, React Testing More ❯
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Mobile Developer - Quilter

Southampton, England, United Kingdom
Quilter
UX solutions using React, TypeScript, Next.js and Ionic - Work closely with UX designers to translate wireframes into polished implementations - Create and maintain component documentation using Storybook - Build cross-platform features using Ionic framework - Write clean, maintainable code following team standards and best practices - Develop and maintain test coverage - Participate in code reviews and technical discussions - Work … participating in all ceremonies and contributing to continuous improvement - Collaborate with 'backend' teams on API integration and implementation - Act as subject matter expert for the UI/Mobile development within the Software Engineering Digital teams. About You - Solid experience of … the design, development, and maintenance of mobile applications for iOS and Android and Next.js applications - Strong proficiency in React and Next.js - Familiarity with hybrid/cross-platform development (Ionic) - Experience with state management solutions (Context API) - Understanding of version control using GitHub - Experience with frontend testing practices (Jest, React Testing Library) - Strong More ❯
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Junior Software Engineer - Cross-platform C++ - Multipass

Manchester, England, United Kingdom
Hybrid / WFH Options
Canonical
Junior Software Engineer - Cross-platform C++ - Multipass Join to apply for the Junior Software Engineer - Cross-platform C++ - Multipass role at Canonical Junior Software Engineer - Cross-platform C++ - Multipass 2 days ago Be among the first 25 applicants Join to apply for the Junior Software Engineer - Cross … source community and support customers when needed Travel internationally for up to two weeks, twice a year, for company events What we are looking for in you Cross-platform development experience on macOS and/or Windows Expertise in modern C++ development Experience with software testing and test-driven development … values and ideals. We balance our programs to meet local needs and ensure fairness globally. Distributed work environment with twice-yearly team sprints in person Personal learning and development budget of USD 2,000 per year Annual compensation review Recognition rewards Annual holiday leave Maternity and paternity leave Employee Assistance Programme Opportunity to travel to new locations to More ❯
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Senior Technical Writer

United Kingdom
Hybrid / WFH Options
Avalonia UI
Company Description Avalonia is an open-source UI framework that allows developers to create cross-platform applications using C# and XAML. With Avalonia, developers can build apps for Windows, macOS, Linux, iOS, Android, and the Web from a single codebase. The framework is trusted by industry leaders such as JetBrains, GitHub, Unity, and Schneider Electric. We … the creation and maintenance of all documentation and educational materials for Avalonia. This is a pivotal role where you'll shape how developers worldwide learn to build cross-platform applications with our framework. As our documentation lead, you'll transform complex technical concepts into clear, actionable guidance that empowers developers to succeed with Avalonia. You'll … development and the .NET ecosystem Proficiency with XAML and experience with at least one XAML-based framework (WPF, MAUI, Xamarin.Forms, UWP, or similar) Understanding of cross-platform development challenges and solutions Exceptional written communication skills with ability to explain complex technical concepts clearly Experience creating documentation for developer audiences Familiarity with documentation More ❯
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Flutter Developer (Full Time Job)

Tipton, West Midlands, United Kingdom
Purezza Technologies
fast-growing and forward-thinking technology company dedicated to delivering cutting-edge digital solutions to clients around the globe. Our areas of expertise include cybersecurity services , custom website development , AI/ML-based tools , UI/UX design , and comprehensive digital marketing strategies . With a strong focus on innovation and client satisfaction, we work closely with businesses … be a part of a dynamic team that is shaping the digital future. Position Overview A Flutter Developer is responsible for designing, developing, and maintaining high-quality cross-platform mobile applications using the Flutter framework and Dart language. This role involves collaborating with designers, product managers, and other developers to deliver robust, scalable, and user-friendly … apps for both Android and iOS platforms Key Responsibilities Design and develop cross-platform mobile applications using Flutter and Dart. Translate UI/UX designs and wireframes into high-quality, responsive code. Integrate APIs and third-party services to enhance app functionality. Optimize app performance and ensure compatibility across devices and operating systems. Troubleshoot, debug, and More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Developer Hybrid/London, UK

London, England, United Kingdom
Hybrid / WFH Options
Fatfish Digital Ltd
A Purpose-Driven Development Agency in the Health and Wellbeing Sector Hybrid/London, UK About Us Fat Fish Digital is a digital agency specialising in creating innovative solutions for the health and wellbeing sector. Our mission is to improve people's lives by leveraging cutting-edge technology and user-centred design. With a strong focus on creating … community for a nation of pet owners. Carradale Futures , which offers a range of digital services to transform digital health care. About the Role We use leading cross-platform development environments (React, React Native, NodeJs- serverless cloud functions), as well as developing bespoke native solutions on iOS, Android and the web. We are looking … for a passionate developer specialising in cross-platform development using React/React Native and Serverless framework (Node.js) to join our team. If you have any of the skills listed below or just have a passion to make great products we want to hear from you. We are working on a range of projects More ❯
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Graduate Software Engineer

Surrey, England, United Kingdom
Hybrid / WFH Options
Christy Media Solutions
apply your skills in a real-world environment — this one's for you. 🔧 What You’ll Work On : Develop high-performance audio software in C++ Work with cross-platform tools (Linux/macOS/iOS) Build slick user interfaces using Qt/QtQuick Explore multithreaded and TCP/IP-based communications Collaborate within an Agile/… Be part of live streaming and real-time audio systems 🌱 What You Bring : Solid grasp of C++ and other Object-Oriented Programming languages Some exposure to multithreading & cross-platform development Basic understanding of networking (TCP/IP) Enthusiasm for audio, technology, or both! Willingness to learn and grow in a collaborative team ✨ Nice to More ❯
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Mobile Application Developer

Oxfordshire, United Kingdom
Hybrid / WFH Options
hireful
expanding, recently invested into SaaS product company in the UK? Adept at both iOS & Android development, with an eye for clean UI/UX for cross-platform development? We are really expanding our development team & there will be plenty of new feature development for you to get stuck … office, 2 days home. Good commutes form Oxford, Rugby, Warwick, Milton Keynes, Northampton, Coventry, etc. We d look for experience in the below: - Extensive knowledge about mobile app development and the entire application lifecycle (concept, design, test, release and support) - Extensive knowledge of the mobile platforms on which the app runs, e.g., Android, iOS, etc - Proficiency with writing More ❯
Employment Type: Permanent
Salary: GBP 50,000 - 60,000 Annual
Posted:

Mobile Application Developer

Banbury, Oxfordshire, South East, United Kingdom
Hybrid / WFH Options
Hireful
expanding, recently invested into SaaS product company in the UK? Adept at both iOS & Android development, with an eye for clean UI/UX for cross-platform development? We are really expanding our development team & there will be plenty of new feature development for you to get stuck … office, 2 days home. Good commutes form Oxford, Rugby, Warwick, Milton Keynes, Northampton, Coventry, etc. We'd look for experience in the below: - Extensive knowledge about mobile app development and the entire application lifecycle (concept, design, test, release and support) - Extensive knowledge of the mobile platforms on which the app runs, e.g., Android, iOS, etc - Proficiency with writing More ❯
Employment Type: Permanent, Work From Home
Salary: £55,000
Posted:

Software Engineer

Barrow Gurney, England, United Kingdom
Dynisma
Software Development Engineer Dynisma is revolutionising the automotive and motorsport driving simulator market with its disruptive motion generator technology. Our cutting-edge approach to simulator design delivers more data about vehicle dynamics and ride to drivers and passengers with less latency and more accurately than any other motion simulators available. ABOUT THE ROLE As a Software Development … experience. Design and build software for a variety of platforms, including Windows/Linux, the web and real-time PLCs Contribute to continuous improvement of Dynisma’s software development processes, tools and automations Develop features and rectify bugs across a variety of Dynisma’s software projects, on both new and existing codebases Write clean, testable, and maintainable code … e.g. Python, C# , Java, Typescript) for at least 2-3 years, either professionally, academically or through suitable experience An interest in areas such as Graphics, UX and cross-platform development Familiarity with modern collaborative development tools including Git and Jira Experience or interest in modern DevOps practices, such as cloud compute, containerisation More ❯
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Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
Vennre
app UX and onboarding journeys Helping Vennre scale across geographies and asset classes 🎯 Responsibilities Build and maintain features across our React-based web and mobile apps Develop cross-platform experiences using Remix and Capacitor (iOS/Android) Integrate securely with backend APIs and third-party platforms like Supabase Write clean, maintainable, well-documented code Optimise for … experience in software engineering (startup or fintech preferred) Strong command of React, TypeScript, Node.js, and SQL Experience working with Remix, Supabase, or Capacitor a plus Familiarity with mobile development and responsive design Strong problem-solving skills and ability to work autonomously Comfortable working across time zones with async teams 🚀 Why Join Vennre Contribute to a purpose-driven platform More ❯
Posted:

Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
Vennre
app UX and onboarding journeys Helping Vennre scale across geographies and asset classes 🎯 Responsibilities Build and maintain features across our React-based web and mobile apps Develop cross-platform experiences using Remix and Capacitor (iOS/Android) Integrate securely with backend APIs and third-party platforms like Supabase Write clean, maintainable, well-documented code Optimise for … experience in software engineering (startup or fintech preferred) Strong command of React, TypeScript, Node.js, and SQL Experience working with Remix, Supabase, or Capacitor a plus Familiarity with mobile development and responsive design Strong problem-solving skills and ability to work autonomously Comfortable working across time zones with async teams 🚀 Why Join Vennre Contribute to a purpose-driven platform More ❯
Posted:

Junior Software Engineer – Cross-platform C++ – Multipass

London, England, United Kingdom
Hybrid / WFH Options
畅敲潭整
source community and support customers when needed Travel internationally for up to two weeks, twice a year, for company events What we are looking for in you Cross-platform development experience on macOS and/or Windows Expertise in modern C++ development Experience with software testing and test-driven development … values and ideals. We balance our programs to meet local needs and ensure fairness globally. Distributed work environment with twice-yearly team sprints in person Personal learning and development budget of USD 2,000 per year Annual compensation review Recognition rewards Annual holiday leave Maternity and paternity leave Employee Assistance Programme Opportunity to travel to new locations to More ❯
Posted:

Software Engineer

Oxfordshire, England, United Kingdom
Hybrid / WFH Options
Oscar
UI/UX Software Engineer – Oxfordshire (Hybrid) An established and growing technology company in Oxfordshire is looking for an experienced UI/UX Software Engineer to join their development team. This is a fantastic opportunity to help shape the next generation of scientific software, working alongside a multidisciplinary team of engineers and domain experts. In this role, you … scientists, and product stakeholders to understand user requirements and optimize workflows Conduct user testing and iterate on UI designs for maximum usability and clarity Debug and maintain cross-platform desktop applications (Linux and Windows) Document UI systems and development practices for maintainability and onboarding Stay up to date with trends in UX design and … in UI/UX development for desktop applications using Qt and C++ Solid understanding of UI principles and best practices for technical users Familiarity with cross-platform development and basic Python integration Strong problem-solving and communication skills; team-oriented mindset Desirable Experience Background in developing software for scientific, engineering, or research More ❯
Posted:

UI/UX Software Engineer

Oxfordshire, South East, United Kingdom
Hybrid / WFH Options
Oscar Associates (UK) Limited
/UX Software Engineer. We're looking for a talented UI/UX Software Engineer with strong proficiency in Qt, QML and C++ to lead the design and development of intuitive, modern user interfaces for their product. In this role, you'll collaborate with a team of scientists and engineers to ensure their software is as user-friendly … and optimize workflows Test, debug, and refine interface features to deliver seamless user experiences Document UI components and workflows for maintainability and onboarding Support broader software and product development initiatives as needed Keep up to date with trends in UX design, scientific software, and Qt best practices Essential Qualifications & Experience Degree in … Computer Science, Digital Design, or a related discipline Proven experience developing UIs with Qt and C++, with a focus on clean, thoughtful design Familiarity with Python and cross-platform development (Linux and Windows) Strong communication and collaboration skills Proactive, hands-on approach to problem-solving and teamwork Preferred Experience Background in scientific software development More ❯
Employment Type: Permanent, Work From Home
Salary: £60,000
Posted:

Senior GPU Software Engineer

London Area, United Kingdom
Hybrid / WFH Options
microTECH Global LTD
related field. Proven experience in video processing or similarly performance-critical applications. Hands-on experience with Vulkan or other modern GPU APIs. Strong background in C/C++ development, both in building new systems and enhancing existing ones. Genuine enthusiasm for new ideas, a willingness to trust … innovation, and the drive to execute effectively. Responsibilities: Translate high-level mathematical models and research into production-ready encoder implementations using C++ and GPU compute technologies. Develop cross-platform solutions for operating systems including Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C Python). Integrate third-party commercial and open More ❯
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Senior GPU Software Engineer

City of London, London, United Kingdom
Hybrid / WFH Options
microTECH Global LTD
related field. Proven experience in video processing or similarly performance-critical applications. Hands-on experience with Vulkan or other modern GPU APIs. Strong background in C/C++ development, both in building new systems and enhancing existing ones. Genuine enthusiasm for new ideas, a willingness to trust … innovation, and the drive to execute effectively. Responsibilities: Translate high-level mathematical models and research into production-ready encoder implementations using C++ and GPU compute technologies. Develop cross-platform solutions for operating systems including Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C Python). Integrate third-party commercial and open More ❯
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Senior GPU Software Engineer

Slough, England, United Kingdom
Hybrid / WFH Options
JR United Kingdom
related field. Proven experience in video processing or similarly performance-critical applications. Hands-on experience with Vulkan or other modern GPU APIs. Strong background in C/C++ development, both in building new systems and enhancing existing ones. Genuine enthusiasm for new ideas, a willingness to trust … innovation, and the drive to execute effectively. Responsibilities: Translate high-level mathematical models and research into production-ready encoder implementations using C++ and GPU compute technologies. Develop cross-platform solutions for operating systems including Windows, Linux, iOS, and Android. Enhance, maintain, and expand existing codebases (C/C Python). Integrate third-party commercial and open More ❯
Posted:
Cross-Platform Development
10th Percentile
£55,125
25th Percentile
£59,063
Median
£66,250
75th Percentile
£74,688
90th Percentile
£76,375