1 to 25 of 36 Permanent Mobile Development Jobs in London

solutions that will delight our customers. Your ambition and enthusiasm will drive innovation and excellence both in Proton Pass and SimpleLogin products. Key responsibilities Develop and maintain cross-platform mobile applications for Android using a blend of cross-platform (Rust) and native technologies (Kotlin) Take end-to-end ownership of mobile application development projects: you'll be … scoping projects, walking back from deadlines and being able to discern the important from the superfluous Foster a culture of innovation by exploring new technologies, methodologies and approaches to mobile development - we tackle complex engineering challenges with creativity and ingenuity Optimise mobile applications for performance, usability and responsiveness across different devices and screen sizes Master memory management … and responsiveness of mobileapplications Design for scalability, considering factors such as data caching,network bandwidth and server load Prioritise customer satisfaction by maintaining a customer-centric mindset throughout the development process, continuously seeking feedback and iterating to improve the user experience The ideal candidate will bring Bachelor's degree in Computer Science, Engineering or related field (or equivalent work More ❯

our clients and their leaders transform employee experience that will attract, engage, and retain top talent through employee benefits, strategic reward and recognition, well-being, and much more. Our mobile development team is expanding, and we have an exciting opportunity for a Lead Engineer . We are looking for someone who is passionate about creating high-quality mobile … participating in design reviews, recommending improvements, and fostering consensus through clear communication and your strong technical skills to support your recommendations. Key Responsibilities Design, develop, and maintain high-quality mobile applications using React Native Collaborate with cross-functional teams, including Product, Design, and Backend Engineering, to ensure seamless integration of new features and improvements in our mobile applications … using TypeScript and React Native Continuously improve the user experience of our mobile applications Work in a team environment with shared code, ensuring disciplined use of source code control and process documentation Identify, analyse, and resolve performance bottlenecks and inefficiencies in the mobile application codebase Write and maintain comprehensive unit tests and documentation for the project Mentor junior More ❯

Lead Mobile/Flutter Developer On behlaf of a fantastic client, we're looking for an experienced Flutter Engineer to take ownership of mobile development and help shape the future of our apps. You'll lead a squad of talented engineers, drive technical excellence, and ensure our apps deliver a clean UI, smooth performance, and a great … user experience. The role Build and refine Flutter apps with strong focus on UI, animations, performance, and reliability Own the mobile architecture: state management, networking, CI/CD pipelines, testing frameworks, monitoring, and alerting Lead and mentor the squad: plan sprints, unblock engineers, coach junior developers, and raise risks early Collaborate with cross-functional teams to align technical decisions … code quality through reviews, feedback, and technical leadership What we're looking for 3+ years building and maintaining production Flutter apps at scale 5+ years in iOS and Android development (Swift, Java, Flutter) 10+ years of professional software engineering experience Deep knowledge of modern state management approaches Hands-on experience with monitoring tools (Firebase Crashlytics, Sentry, New Relic, or More ❯

financial freedom. You will build our next generation Unified Client Experience (UCX) frontend that will streamline client journeys across a range of products and services, in both web and mobile domains. It's an opportunity to design, architect and build a modern frontend using latest technologies and best practices to transform our savings and investment platform. The UCX team … part of the future of investing. Shape it with us. What You'll Be Doing Building and deploying scalable, secure, and compliant software at pace. Integrating HL web and mobile apps with existing and new systems to deliver a seamless client experience across a range of products and services. Delivering value iteratively, always focused on customer outcomes and short … or Wealth Management . Deep expertise in React or React Native , with hands-on experience in secure API integration , authentication flows , and frontend architecture . Strong proficiency in native mobile development using Swift (iOS) and/or Kotlin (Android) - capable of guiding mobile-first initiatives and bridging web-mobile experiences. Skilled in writing clean, maintainable, and More ❯

Technical Lead – Mobile (Flutter) Up to £120,000 + Benefits Central London, 4 Days On-Site + 1 Day Remote 80% Hands on/20% Leadership Can Provide Sponsorship We are working with an established SaaS business that has been driving innovation in the logistics and transport industry for over 25 years. Backed by significant investment in new products … they combine the buzz of a scale-up with the stability of a trusted name. Right now, they are looking for a Technical Lead (Mobile – Flutter) to take full ownership of their mobile ecosystem. Why this role stands out This is not just another hands-on coding position. You’ll be setting the technical direction, mentoring engineers, and … shaping mobile solutions that directly impact customers in a sector that keeps the world moving. You’ll be working up to £110k with a benefits package that supports both your career and your wellbeing. What you will be doing Own the delivery and architecture of all mobile apps Write clean, testable, high-performing code using Flutter and Dart More ❯

Technical Lead – Mobile (Flutter) Up to £120,000 + Benefits Central London, 4 Days On-Site + 1 Day Remote 80% Hands on/20% Leadership Can Provide Sponsorship We are working with an established SaaS business that has been driving innovation in the logistics and transport industry for over 25 years. Backed by significant investment in new products … they combine the buzz of a scale-up with the stability of a trusted name. Right now, they are looking for a Technical Lead (Mobile – Flutter) to take full ownership of their mobile ecosystem. Why this role stands out This is not just another hands-on coding position. You’ll be setting the technical direction, mentoring engineers, and … shaping mobile solutions that directly impact customers in a sector that keeps the world moving. You’ll be working up to £110k with a benefits package that supports both your career and your wellbeing. What you will be doing Own the delivery and architecture of all mobile apps Write clean, testable, high-performing code using Flutter and Dart More ❯

Architect: NativeScript and Java GraphQL Location : London Job Type: Contract Required Qualifications Proven experience as a software architect, with a strong portfolio of successfully delivered mobile applications and backend systems. Extensive hands-on experience with NativeScript and a deep understanding of its core principles for cross-platform mobile development. Strong proficiency in Java and experience with modern Java … frameworks such as Spring Boot. In-depth knowledge of GraphQL for API development and data fetching. Experience with designing and building microservices architectures. Familiarity with both iOS and Android native development is a plus. Solid understanding of mobile UI/UX principles and best practices. Experience with cloud platforms (e.g., AWS, Google Cloud, Azure) and containerization technologies … e.g., Docker, Kubernetes). • Experience with implementing Analytics in Mobile Applications • Experience implementing Accessibility in Mobile Applications • POV/POC on leveraging GenAI in Mobile application Development More ❯

Architect: NativeScript and Java GraphQL Location : London Job Type: Contract Required Qualifications Proven experience as a software architect, with a strong portfolio of successfully delivered mobile applications and backend systems. Extensive hands-on experience with NativeScript and a deep understanding of its core principles for cross-platform mobile development. Strong proficiency in Java and experience with modern Java … frameworks such as Spring Boot. In-depth knowledge of GraphQL for API development and data fetching. Experience with designing and building microservices architectures. Familiarity with both iOS and Android native development is a plus. Solid understanding of mobile UI/UX principles and best practices. Experience with cloud platforms (e.g., AWS, Google Cloud, Azure) and containerization technologies … e.g., Docker, Kubernetes). • Experience with implementing Analytics in Mobile Applications • Experience implementing Accessibility in Mobile Applications • POV/POC on leveraging GenAI in Mobile application Development More ❯

skills. Demonstrated student service orientation. Full working rights for work in the UK. This role is fully based on campus. Desirable Criteria: Relevant industry experience in games programming/development pipeline and relevant software, specialisms including Unity or Unreal and C# or C++. Teaching experience, including the creation of session plans and preparation of materials. Specialisms including game engines … graphics programming, A.I., game optimisation, mobile development (Android &/or Swift), VR & AR, software development production, or other games development topics. Experience in project-based learning, using flipped teaching techniques and other contemporary forms of facilitating learning. Experience in using technology in learning, including virtual learning platforms. Ability to teach across other disciplines, including web, games … art, games design, and content creation. PlayStation development experience. Along with much of the creative sector, at SAE, we celebrate diversity and believe in the power of individuality. We're committed to providing a supportive and inclusive environment where every student can thrive, regardless of background or experience. As a key member of our team, you'll play an More ❯

live transcription, the mid-call intervention, the post-call summaries, that defines our premium user experience. You will own the app that we will showcase to the world at Mobile World Congress (MWC) 2026, and your work will be the primary driver for our monetization strategy. Key Responsibilities ? Conversational UI Architecture: Own the end-to-end development of … single application. Required Qualifications ? Education & Experience ? Bachelor's degree in Computer Science or a related field, or equivalent practical experience. ? 5+ years of hands-on experience in native Android development, with a strong portfolio of shipped, consumer-facing applications. ? Required Technical & UI/UX Skills ? Deep expertise in native Android UI/UX development, including Kotlin and modern … high-fidelity designs (e.g., Figma, Sketch) into beautiful, performant, and maintainable code. ? A strong understanding of Android UI performance optimization, memory management, and threading models. ? Experience with the full mobile development lifecycle, from ideation and prototyping to testing, release, and maintenance. Preferred Qualifications ? Advanced UI/UX & Conversational AI ? Prior experience designing or building conversational interfaces (e.g., chatbots More ❯

per day Location: London (Light hybrid) We’re looking for a seasoned Full Stack React Native Engineer with a proven track record of building and scaling high-quality mobile applications end-to-end. You’ll be joining a fast-paced product team delivering impactful mobile experiences to a global user base. What you’ll do Build and maintain … robust mobile apps using React Native and Expo Optimise app performance, implement modern architecture patterns, and handle push notifications, offline-first features, and state management Collaborate on backend APIs (REST or GraphQL) and integrate secure authentication methods - JWT, OAuth Deploy and manage cloud infrastructure and services on AWS, including Lambda, DynamoDB, S3, AppSync Support CI/CD pipelines and … ensure high-quality, monitored deployments What you bring 5+ years of professional software development experience 3+ years hands-on React Native and Expo experience Strong understanding of the mobile development lifecycle and app deployment processes Experience with database design (SQL or NoSQL) and backend integrations Proven AWS deployment experience and familiarity with Infrastructure as Code (CDK) Knowledge More ❯

from any where in Ireland - North and South Benefits package Career progression and skill up opportunities Plus more What do I need? Ability to write clean reusable code for mobile development in languages like Java or JavaScript, Kotlin etc Experience working on applications for deployment on Google Play/Android Store Fronts Have an interest or some knowledge … of Kotlin Experience testing and releasing new applications Great communication skills with ability to work closely with a development team to maintain and develop new features for core Android applications O.K. I'm in what's next? Apply with your latest CV below More ❯

from any where in Ireland - North and South Benefits package Career progression and skill up opportunities Plus more What do I need? Ability to write clean reusable code for mobile development in languages like Java or JavaScript, Kotlin etc Experience working on applications for deployment on Google Play/Android Store Fronts Have an interest or some knowledge … of Kotlin Experience testing and releasing new applications Great communication skills with ability to work closely with a development team to maintain and develop new features for core Android applications O.K. I'm in what's next? Apply with your latest CV below More ❯

from any where in Ireland - North and South Benefits package Career progression and skill up opportunities Plus more What do I need? Ability to write clean reusable code for mobile development in languages like Java or JavaScript, Kotlin etc Experience working on applications for deployment on Google Play/Android Store Fronts Have an interest or some knowledge … of Kotlin Experience testing and releasing new applications Great communication skills with ability to work closely with a development team to maintain and develop new features for core Android applications O.K. I'm in what's next? Apply with your latest CV below More ❯

We're looking for a Senior Software Engineer to join one of our multidisciplinary, cross-functional, lean delivery squads, focused on rapidly delivering value to our customers through our mobile app and website. Our ideal candidate will have extensive experience across different technologies and projects, combined with a desire to keep growing their skills - learning new languages, technologies and … way. You will lead by example; getting your hands dirty in the code, inspiring your peers & helping to educate your stakeholders. You are passionate about the craft of software development and contribute to technical and non-technical discussions that help shape the direction of digital product delivery. You are able to work independently, as well as collaboratively, on user … Responsibilities Providing engineering expertise and experience as a member of a cross functional delivery team, working alongside other engineers, designers, QA, delivery lead and a tech lead Employ modern development practices to ship high-quality software Ability to adapt to new languages and frameworks Choosing the right technology for the job, striving for simplicity Providing support for digital products More ❯

deep technical expertise with a genuine love for design as we create the next generation of educational experiences. Key Responsibilities Build and maintain features for our React Native (Expo) mobile application Create smooth, delightful animations and micro-interactions that enhance the user experience Implement pixel-perfect designs with obsessive attention to detail Collaborate closely with design teams to bring … concepts to life with technical excellence Develop and maintain features across our mobile app and Next.js web platform Build robust, scalable solutions that handle our rapidly growing user base Optimize performance and ensure smooth user experiences across all platforms Integrate with AI/ML services and educational content delivery systems Think like an interaction designer - considering user flows, edge … improvements Requirements Technical Expertise: Expert-level proficiency in JavaScript and relevant frameworks such as Next.js Design Sensibility: Demonstrated passion for exceptional UI/UX design, animations, and micro-interactions Mobile Development: React Native experience would be helpful, but is not essential B2C Experience: Track record in building consumer-facing applications with high engagement and retention Full-Stack Capabilities More ❯

deep technical expertise with a genuine love for design as we create the next generation of educational experiences. Key Responsibilities Build and maintain features for our React Native (Expo) mobile application Create smooth, delightful animations and micro-interactions that enhance the user experience Implement pixel-perfect designs with obsessive attention to detail Collaborate closely with design teams to bring … concepts to life with technical excellence Develop and maintain features across our mobile app and Next.js web platform Build robust, scalable solutions that handle our rapidly growing user base Optimize performance and ensure smooth user experiences across all platforms Integrate with AI/ML services and educational content delivery systems Think like an interaction designer - considering user flows, edge … improvements Requirements Technical Expertise: Expert-level proficiency in JavaScript and relevant frameworks such as Next.js Design Sensibility: Demonstrated passion for exceptional UI/UX design, animations, and micro-interactions Mobile Development: React Native experience would be helpful, but is not essential B2C Experience: Track record in building consumer-facing applications with high engagement and retention Full-Stack Capabilities More ❯

I'm looking for a Flutter Technical Lead to take ownership of a mobile development function. In this role, you’ll combine hands-on coding with strategic leadership, guiding the team in building scalable, high-performance mobile apps using Flutter. My end client is a B2B SaaS business that are both well-backed & established but still have … an engineering function that operates much like an agile start-up. Technical Leadership & Delivery Own the technical direction and architecture of all mobile applications Break down business requirements into clear, actionable implementation tasks Write clean, efficient, and testable code in Dart using Flutter Enforce secure coding practices and modern architectural standards Lead code reviews, maintain high test coverage, and … app performance Team & Cross-Functional Collaboration Mentor and support engineers through 1:1s and technical guidance Proactively remove blockers and help the team stay focused on priorities Represent the mobile team in senior technical meetings and planning sessions What You Bring 4/5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider More ❯

I'm looking for a Flutter Technical Lead to take ownership of a mobile development function. In this role, you’ll combine hands-on coding with strategic leadership, guiding the team in building scalable, high-performance mobile apps using Flutter. My end client is a B2B SaaS business that are both well-backed & established but still have … an engineering function that operates much like an agile start-up. Technical Leadership & Delivery Own the technical direction and architecture of all mobile applications Break down business requirements into clear, actionable implementation tasks Write clean, efficient, and testable code in Dart using Flutter Enforce secure coding practices and modern architectural standards Lead code reviews, maintain high test coverage, and … app performance Team & Cross-Functional Collaboration Mentor and support engineers through 1:1s and technical guidance Proactively remove blockers and help the team stay focused on priorities Represent the mobile team in senior technical meetings and planning sessions What You Bring 4/5+ years commercial experience with Flutter 1+ years leading technical teams of 3-5 (will consider More ❯

and validation of software solutions that will allow some of the largest companies in the world do more business online testing and troubleshooting customer integrations, Desktop/Laptop and mobile fingerprinting, API Integrations Policies and rules, escalation and enforcement workflow design. Following prescribed software workflow and processes when addressing customer questions and ensuring that the Service continues to function … or ASP.Net Excellent analysis, troubleshooting and debugging skills, in particular with web workflow and websites Ability to handle a wide variety of sometimes demanding and complex issues SDK/Mobile Development Android/IOS/Java (desirable) Working for you: We know that your wellbeing and happiness are key to a long and successful career. These are some … days, giving you time to support the charities and causes that matter to you Access to employee resource groups with dedicated time to volunteer Access to extensive learning and development resources Access to employee discounts scheme via Perks at Work More ❯

and validation of software solutions that will allow some of the largest companies in the world do more business online testing and troubleshooting customer integrations, Desktop/Laptop and mobile fingerprinting, API Integrations Policies and rules, escalation and enforcement workflow design. Following prescribed software workflow and processes when addressing customer questions and ensuring that the Service continues to function … or ASP.Net Excellent analysis, troubleshooting and debugging skills, in particular with web workflow and websites Ability to handle a wide variety of sometimes demanding and complex issues SDK/Mobile Development Android/IOS/Java (desirable) Working for you: We know that your wellbeing and happiness are key to a long and successful career. These are some … days, giving you time to support the charities and causes that matter to you Access to employee resource groups with dedicated time to volunteer Access to extensive learning and development resources Access to employee discounts scheme via Perks at Work More ❯

iOS Developer - Build the Next Generation of Mobile Banking London/Hybrid Make a Real Impact in a Prestigious Private Bank Ready to build something that genuinely matters? An exceptional opportunity has opened with one of Britain’s most historic private banks as they fast-track their digital transformation and you could play a key role in delivering an … outstanding mobile banking experience for high-net-worth customers who expect nothing but excellence. They are modern, ambitious, and investing heavily in technology. Now, they’re searching for an iOS Developer who wants to create real impact, push boundaries, and help shape the future of premium digital banking. Why This Role Is Special This isn’t just another app … discerning, digitally engaged customers. Developing cutting-edge features using Swift, Objective-C, and modern iOS frameworks. Bringing fresh ideas to enhance UX, security, reliability, and performance. Embedding testing throughout development to ensure an exceptional customer experience. Working within a modern agile squad, contributing to planning, refinement, and continuous improvement. Taking ownership across the full lifecycle: concept code test release More ❯

React Native Engineer with experience with either Android or iOS - £110k + Bonus - Full Remote In this role as Lead Mobile Developer, you will act as the key technical partner to the Mobile Team Lead, focusing on integrating React Native applications and unifying mobile experiences from various acquired entities within our luxury yachting and lifestyle platform. The … working outside of an office environment and be used to working in a business where you'll get autonomy. Your day-to-day work will centre on hands-on development in React Native, where you will refactor and merge codebases from acquisitions, transitioning iOS components written in Objective-C or Swift and Android elements in Java or Kotlin into … Firebase Auth—and standardising them via a unified backend integration using GraphQL with Apollo Client for real-time queries. On the user journey side, you will map and streamline mobile pathways, merging fragmented experiences like payment processing—perhaps one app uses Stripe's older SDK while another integrates Adyen—into a single, compliant flow adhering to UK FCA regulations More ❯

React Native Engineer with experience with either Android or iOS - £110k + Bonus - Full Remote In this role as Lead Mobile Developer, you will act as the key technical partner to the Mobile Team Lead, focusing on integrating React Native applications and unifying mobile experiences from various acquired entities within our luxury yachting and lifestyle platform. The … working outside of an office environment and be used to working in a business where you'll get autonomy. Your day-to-day work will centre on hands-on development in React Native, where you will refactor and merge codebases from acquisitions, transitioning iOS components written in Objective-C or Swift and Android elements in Java or Kotlin into … Firebase Auth—and standardising them via a unified backend integration using GraphQL with Apollo Client for real-time queries. On the user journey side, you will map and streamline mobile pathways, merging fragmented experiences like payment processing—perhaps one app uses Stripe's older SDK while another integrates Adyen—into a single, compliant flow adhering to UK FCA regulations More ❯

React Native Engineer with experience with either Android or iOS - £110k + Bonus - Full Remote In this role as Lead Mobile Developer, you will act as the key technical partner to the Mobile Team Lead, focusing on integrating React Native applications and unifying mobile experiences from various acquired entities within our luxury yachting and lifestyle platform. The … working outside of an office environment and be used to working in a business where you'll get autonomy. Your day-to-day work will centre on hands-on development in React Native, where you will refactor and merge codebases from acquisitions, transitioning iOS components written in Objective-C or Swift and Android elements in Java or Kotlin into … Firebase Auth—and standardising them via a unified backend integration using GraphQL with Apollo Client for real-time queries. On the user journey side, you will map and streamline mobile pathways, merging fragmented experiences like payment processing—perhaps one app uses Stripe's older SDK while another integrates Adyen—into a single, compliant flow adhering to UK FCA regulations More ❯