26 to 50 of 340 Mobile App Jobs in London

with Public Sector/Government clients. The ideal candidate will have extensive experience in developing Android applications and will be responsible for designing, developing, and maintaining high-quality mobile applications. You will be part of the Product Team and report to the Product Tech Lead. You will demonstrate your capabilities in the following areas: Essential Skills & Experience Eligible More ❯

ownership and drive real change. Constantly grow as you work hard for a mission that matters at a company where you matter. Your Impact As a Senior II Mobile Engineer , you will play a key role in bringing FUSUS real-time crime center capabilities to law enforcement agencies across the globe. With over 200 agencies already using this … platform and growing rapidly, your work will directly shape and scale the mobile experience that powers real-time public safety response. You'll help define and drive the mobile strategy across both iOS and Android platforms, leading high-impact architectural decisions and mentoring other engineers. This role is ideal for someone who thrives at the intersection … C) or Android (Kotlin/Java) , with working knowledge of the other. Proven ability to lead architecture discussions and contribute across large-scale mobile systems. Familiarity with app deployment processes, mobile CI/CD, and telemetry/observability in mobile environments. Strong understanding of mobile app UX principles, performance optimization More ❯

We are seeking an experienced Lead Mobile Engineer to support our clients in the strategy, development, and execution of mobile applications across platforms. This role will have different responsibilities depending on the project needs, which may include: Leading a team of talented engineers and collaborating with product, design, and other cross-functional teams to deliver world … class mobile experiences. Proposing technical architectures for new or evolving applications. Leadership & Strategy Serve as a mobile technology expert and advocate across the company. Maintain knowledge of the latest technical trends. Stay informed about market trends in mobile products. Build, lead, and mentor a high-performing mobile engineering team. Drive best practices … in coding, architecture, security, and performance across mobile platforms. Delivery & Execution Oversee development, deployment, and maintenance of mobile applications. Maintain a quality-driven approach to app stability, CI/CD pipelines, and automated testing. Ensure timely delivery of high-quality software using agile methodologies. Partner with Product Management and Design to scope features and set More ❯

Development Engineer, Ring Job ID: Evi Technologies Limited The Ring team is looking for a passionate and talented Android Software Development Engineer who has experience building world-class mobile apps. You will be responsible for developing mobile applications that interact seamlessly with our devices and delight our customers. You will join a team responsible for developing … to our customers, building solutions and supporting new products that help Ring on their mission to make neighbourhoods safer. Key job responsibilities - Design, develop and maintain our Android mobile applications - Work with team members to investigate design approaches, prototype technology and evaluate technical feasibility - Lead architecture and design of features, from conception to launch - Help to improve engineering … distributed cloud systems and home security devices. About the team Working on exciting new features and fully owning some of the most visited and core experiences in the Ring app, our team is always looking to learn and innovate. We frequently collaborate with cloud, firmware and other mobile teams to solve problems, come up with solutions and More ❯

Senior Android Developer - Android, Kotlin, MVVM, Java, XML - health care mobile apps Central London circa £80k DoE … + discretionary annual Bonus Hybrid working - 3-4 days per week in the office A cracking opportunity for a Senior Android Developer to join a small, acclaimed, highly creative app and technology company (circa 20) known for groundbreaking patented technology in the health care field, including several patents in the pipeline. The apps are truly innovative and positively impact … wearable devices Develop new features, improve existing code - work on ambitious projects ranging from low-level algorithms to high-level system design; plus the occasional development of a prototype app Utilise the latest Android SDKs and frameworks to implement scalable, maintainable and testable architectures Conduct code reviews and champion high-quality code by leveraging unit tests, continuous integration, and More ❯

within our 40+ microservice ecosystem, ensuring proper service boundaries and communication patterns Cross-stack development : Work across our full technology stack - from GraphQL APIs and gRPC services to mobile apps and infrastructure-as-code Code quality & mentorship : Drive code quality standards, conduct thorough code reviews, and mentor junior engineers on best practices and architectural decisions Product collaboration : Partner … our warehouse and deliver products efficiently to our network Access Control - we have an internal access control system that enables our technical teams to visit sites from the same app they use to do their work App & Web - Kitt's core customer experience is encapsulated in our native app and web products, which allows user's to … microservices gRPC & Protocol Buffers - Inter-service communication GraphQL - Client-facing API gateway MySQL, PostgreSQL, Redis - Data storage and caching Google Cloud Pub/Sub - Event-driven architecture Frontend & Mobile TypeScript - Primary frontend language React & Next.js - Web applications React Native & Expo - Mobile applications CSS, CSS-in-JS - Styling GraphQL Codegen - Type-safe API integration Artificial Intelligence OpenAI More ❯

and design specifications, execute test cases, and analyze and report test results to the teams. Focus on building efficient solutions for web applications, services/APIs, databases, and mobile testing requirements. Actively participate in functional, system, and regression testing activities. Contribute to the identification, creation, execution, and automation of test scenarios with a quality-first mindset. Serve as … C#, Java, or other relevant languages. Experience in designing and developing automated tests, with knowledge of testing across various application layers, including user interface, service, data layers, and mobile applications. Ability to advise the team on identifying automatable test cases across different layers, with a collaborative approach to working with developers to create automation and performance-friendly code. More ❯

new tools and languages quickly and enjoy venturing into unknown tech stacks. Requirements 5+ years of experience in product development, building a range of Marketing sites, SaaS and mobile apps. Right to work in the UK and proficient in English, written and spoken. Proficiency with TypeScript, Next.js, Node.js and React Native. Experience deploying to Google Cloud, Vercel, or More ❯

more resilient organisations to improve people’s daily lives. Our shared mission guides our every action and charts a sustainable path to a better future. As the Head of App Engineering, you will lead the development of a cohesive mobile app experience, consolidating three existing applications into a unified app platform. You will focus on … building and maintaining a world-class app experience that is seamless, intuitive, and engaging for our users. You will oversee a talented team of engineers, ensuring the delivery of a high-quality, scalable, and secure solution across mobile platforms. You will drive the adoption of best practices in app development, set technical direction, and collaborate with … regulatory standards in the consolidated platform. Identify risks associated with integration efforts and develop mitigation strategies. Emphasise a user-centric approach in all development efforts to ensure the unified app platform delivers an exceptional end-user experience. Regularly communicate progress, challenges, and achievements to stakeholders, aligning engineering efforts with business goals. Stay abreast of emerging technologies and trends in More ❯

more resilient organisations to improve people's daily lives. Our shared mission guides our every action and charts a sustainable path to a better future. As the Head of App Engineering, you will lead the development of a cohesive mobile app experience, consolidating three existing applications into a unified app platform. You will focus on … building and maintaining a world-class app experience that is seamless, intuitive, and engaging for our users. You will oversee a talented team of engineers, ensuring the delivery of a high-quality, scalable, and secure solution across mobile platforms. You will drive the adoption of best practices in app development, set technical direction, and collaborate with … regulatory standards in the consolidated platform. Identify risks associated with integration efforts and develop mitigation strategies. Emphasise a user-centric approach in all development efforts to ensure the unified app platform delivers an exceptional end-user experience. Regularly communicate progress, challenges, and achievements to stakeholders, aligning engineering efforts with business goals. Stay abreast of emerging technologies and trends in More ❯

more resilient organisations to improve people’s daily lives. Our shared mission guides our every action and charts a sustainable path to a better future. As the Head of App Engineering, you will lead the development of a cohesive mobile app experience, consolidating three existing applications into a unified app platform. You will focus on … building and maintaining a world-class app experience that is seamless, intuitive, and engaging for our users. You will oversee a talented team of engineers, ensuring the delivery of a high-quality, scalable, and secure solution across mobile platforms. You will drive the adoption of best practices in app development, set technical direction, and collaborate with … regulatory standards in the consolidated platform. Identify risks associated with integration efforts and develop mitigation strategies. Emphasise a user-centric approach in all development efforts to ensure the unified app platform delivers an exceptional end-user experience. Regularly communicate progress, challenges, and achievements to stakeholders, aligning engineering efforts with business goals. Stay abreast of emerging technologies and trends in More ❯

a unique SaaS platform. You'll optimise performance, integrate with backend services, and ensure high-quality code delivery. Your contribution will be key to scaling the mobile app, driving product enhancements, and improving the overall user experience. In this role, you will develop and implement new features in our React Native mobile application for iOS … and Android, collaborating with product managers and designers to translate requirements into scalable and maintainable code. You'll be responsible for optimising the app's performance, reliability, and responsiveness across different devices and platforms. You'll also work closely with backend engineers to integrate RESTful APIs, ensuring seamless data flow between the mobile app and backend … services. Additionally, you will conduct thorough testing, debugging, and code reviews to ensure the app is stable and performs well. In collaboration with designers, you will implement pixel-perfect UI designs, ensuring the best possible user experience. Furthermore, you will participate in agile development processes, including daily stand-ups, sprint planning, and retrospectives. Required Skills & Qualifications: Proven experience as More ❯

and deployment challenges. Key job responsibilities Design AI-powered test automation frameworks that leverage machine learning for intelligent test case generation, predictive analytics, and autonomous test maintenance across mobile and cloud platforms Architect next-generation test infrastructure that combines traditional CI/CD pipelines with AI-driven decision making for optimized test selection, parallel execution, and automated result … At Blink, you'll work within a fully integrated engineering ecosystem where you can test across multiple layers - from algorithms and ASICs to hardware, firmware, AWS infrastructure, and mobile applications. As part of the Amazon Devices family, you'll collaborate with teams across Ring, Kindle, Fire, and Echo platforms. We maintain a strong quality-first culture where every … from scratch - Advanced experience in building and maintaining automated testing infrastructure using AWS services - Strong understanding of cloud architecture patterns and testing strategies - Experience in developing mobile app testing frameworks and tools - Proven track record of improving test coverage and testing efficiency through automation Amazon is an equal opportunities employer. We believe passionately that employing a diverse More ❯

customers and a Trustpilot rating of 4.8, they're entering an exciting new growth phase-investing heavily in tech and launching a brand-new mobile app in September 2025. They're now hiring a Senior React Native Developer to join a small, collaborative team and play a central role in delivering a high-performance mobile product. This is a hands-on opportunity to help shape an app used daily by thousands, reporting directly to the CTO. Key Responsibilities Design, build, and support the flagship React Native mobile app Deliver scalable, reusable components and front-end libraries Translate UI/UX designs into performant, production-ready code Own releases for … both iOS and Android platforms Work with native modules when required Ideal Candidate 5+ years of mobile development experience with React Native Proven app delivery to iOS & Android app stores Strong understanding of mobile performance, architecture, and design patterns Solid grasp of domain-driven design, clean code principles, and MVC frameworks STEM or creative More ❯

compliance. Drive an agile and iterative approach, using data-driven insights, experimentation, and user feedback to refine and improve the mobile experience. Ensure the mobile app integrates seamlessly with existing portals, platforms, and APIs, supporting a connected digital ecosystem for our clients. Stakeholder & Cross-Functional Collaboration Work closely with senior stakeholders, engineering teams, designers, and … customer success teams to drive adoption, engagement, and retention for mobile users. Analytics, Performance & Compliance Define and monitor KPIs and success metrics to track mobile app performance, user engagement, and feature adoption. Work with data and analytics teams to derive insights and optimise the user experience through continuous improvements. Ensure the mobile app … platforms, authentication flows, and mobile security best practices. Product & Technical Skills Deep knowledge of mobile product management best practices, including user experience, feature development, and app store optimisation. Experience working with analytics tools, A/B testing, and performance tracking to drive mobile product decisions. Ability to balance user needs, commercial goals, and More ❯

credit landscape and empower thousands of customers. You'll join a lean, agile engineering team, playing a pivotal role in a major tech transformation including a brand-new mobile app. If you're a hands-on technical leader who thrives on impact and is excited by fintech and AI, this is your chance. THE COMPANY: This profitable fintech … core responsibilities will include: Architecting, designing, and building scalable web platforms and APIs using Python. Collaborating in 2-week sprint cycles on diverse projects, from greenfield mobile app development to core platform enhancements. Contributing to testing strategies, CI/CD pipelines, and influencing architectural decisions. Mentoring peers and championing rapid, iterative development in a lean, fast-paced More ❯

content. Better products. And better careers. Working in Tech, Product or Data at Sky is about building the next and the new. From broadband to broadcast, streaming to mobile, SkyQ to Sky Glass, we never stand still. We optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do … CD pipelines , driving innovation across cloud-native microservices and edge computing. Architect and implement mission-critical software components , collaborating with cross-functional teams to deliver seamless integration between mobile apps, infrastructure, and IoT devices. Champion engineering excellence "by defining and enforcing coding standards, test automation practices, and DevOps strategies that ensure robust, maintainable, and secure codebases. Mentor and … taster: Sky Q, for the TV you love all in one place The magic of Sky Glass at an exclusive rate A generous pension package Private healthcare Discounted mobile and broadband A wide range of Sky VIP rewards and experiences Inclusion & how you'll work We are a Disability Confident Employer, and welcome and encourage applications from all More ❯

UK fintech helping over 800,000 customers improve their financial health. Backed by strong leadership and AI-driven innovation, the company is building a brand-new mobile app and scaling its engineering team to support rapid product delivery. They're now hiring a Senior Python Engineer to join this lean, high-impact team and help shape the More ❯

Engineer who will be a key member of the Engineering unit at Reward Gateway.You will work in a team with QAs, Designers, and Backend developers to build an app that RG provides to its clients. Your team will stay organised using the Scrum methodology and deliver short-term incremental updates to the project at hand. Key Responsibilities 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 Stay up-to-date with the latest industry trends and technologies related to mobile development Skills 2 years of experience as More ❯

Mobile Engineer Join the ANNA Money Team: Revolutionising Business Administration for UK Freelancers and SMEs. At ANNA Money, we're more than just a mobile app and business current account. We're a dynamic solution designed explicitly for UK-based freelancers, small businesses, and the creatively inclined. Our mission is to streamline the daunting world … businesses approach admin and banking - making it smarter, faster, and more efficient for everyone. What You'll Do Take ownership of the quality, performance, and stability of our Android app Lead technical decision-making and guide the team in maintaining clean, scalable architecture Collaborate closely with product and design teams to align implementation with strategic objectives Ensure consistent UX … and functionality across Android, iOS, and web platforms Identify edge cases, resolve bugs, and maintain high standards of test coverage Shape and evolve ANNA's mobile development practices and CI/CD workflows Provide technical leadership across Android and iOS teams, mentoring developers and helping them grow Lead planning and prioritisation for mobile initiatives, ensuring alignment More ❯

Ventures, Bessemer Venture Partners, with participation of Visionaries Club and the founders of Melio and Klarna. Who We're Looking For We are seeking highly skilled and experienced mobile developers to join our team. Whether they specialise in iOS, Android, or both, we are particularly interested in developers with a multiplatform mindset who are passionate about creating seamless … maintain high-quality code and share knowledge across the team. Optimise apps for speed and scalability, and troubleshoot performance issues across platforms. Use profiling tools to diagnose and improve app performance. Support and maintain CI/CD pipelines for Android and iOS apps, streamlining the deployment process. What You'll Need 3+ years of professional experience in mobile development (iOS) Familiarity with Jetpack Compose or SwiftUI A solid understanding of mobile app architectures A strong interest in cross-platform development or a willingness to work with Kotlin Multiplatform (KMP) Proficiency in at least one of the following: Swift (iOS) or Kotlin (Android) Comfort working in a fast-paced, product-focused environment Clear and More ❯

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 … 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 More ❯

effective Product & Technology teams to produce beautiful product design with intuitive workflows that makes the application irresistible to users. Partnering with Product Management to design modern web and mobile applications for traders and brokers. You will own the customer experience of the client facing applications at Trayport and ensure a consistent and coherent approach across the whole product. … perfection. Ability to present options and articulate design decisions, internally and with clients. Proficient in designing Windows and Web applications (WPF,HTML/CSS). Desirable iOS and Android App design experience and can site examples of what worked well and what didn’t, along with challenges faced with both platforms. Multivariate Testing (MVT) experience and can articulate how More ❯

effective Product & Technology teams to produce beautiful product design with intuitive workflows that makes the application irresistible to users. Partnering with Product Management to design modern web and mobile applications for traders and brokers. You will own the customer experience of the client facing applications at Trayport and ensure a consistent and coherent approach across the whole product. … perfection. Ability to present options and articulate design decisions, internally and with clients. Proficient in designing Windows and Web applications (WPF,HTML/CSS). Desirable iOS and Android App design experience and can site examples of what worked well and what didn’t, along with challenges faced with both platforms. Multivariate Testing (MVT) experience and can articulate how More ❯

Portonics is a team of technology consultants that specialize in application design, software & mobile application development. Our goal is to help clients understand and make full use of digital technology that can heighten brand awareness and lead to better business. We are a diverse team of engineers, analysts, solution architects working on the latest technologies, and ru nning More ❯