Senior Mobile Software Engineer

About the Team Join SumUp's Mobile Platform Squad as a Senior Android Engineer and play a pivotal role in the development of our rapidly expanding Android ecosystem. With substantial investments in our flagship products, we empower our feature teams to create world-class experiences. You will be crucial in establishing a robust foundation that allows over 40…

Join Spotify as a Senior Android Engineer within our innovative Data Platform team. In this role, you will leverage your extensive Android development experience to enhance our data services and deliver optimal user experiences. You will collaborate with cross-functional teams, including product managers and data scientists, to design and implement robust solutions that support our growing user base.

Motorway is looking for a Senior Android Engineer to join the team in London. This role centers on developing and refining mobile applications that help both the business and its users. Daily work brings close collaboration with designers, product managers, and fellow engineers to deliver reliable, user-friendly Android features. Key responsibilities Design, build, and maintain Android applications for Motorway Partner with cross-functional teams to launch new features and enhance existing ones Take part in architectural decisions, code quality discussions, and user experience improvements Collaboration and impact This position involves regular teamwork across disciplines, ensuring that the Android experience aligns with Motorway’s goals and user needs. Input on architecture and user experience is valued at every stage. Location The role is based in London.

Our Story Welcome to Zopa! Since our inception in 2005, we have pioneered the peer-to-peer lending space, and in 2020, we proudly launched Zopa Bank. Our mission is to reshape the financial landscape by prioritizing our customers' needs and preferences. We are dedicated to creating a banking experience that is accessible, empowering, and innovative. Discover more about our exciting offerings at Zopa.com! We celebrate our remarkable achievements, thanks to our incredible team. Recognized not just for industry accolades, we have also been named among the top three Most Loved Workplaces in the UK. If you thrive on tackling unconventional challenges, embrace innovative thinking, and are motivated by the desire to make a significant impact, Zopa is the place for you. Join us and make a difference! Want to see our journey? Follow us on Instagram @zopalife.About the TeamWe are on an exciting journey to enhance our mobile application, and we are seeking a talented individual to assist in developing our new Android app, utilizing Kotlin.As part of our Mobile Platform team, you will be instrumental in shaping the app's architecture, shared capabilities, libraries, core experiences, and analytics infrastructure. The team is a vital contributor to Zopa’s mobile community and plays a key role in advancing our mobile technology.With an aspiration to become Britain's leading bank, we have recently unveiled the Zopa Account — a highly engaging product aimed at the mass market. Our mobile app serves as the primary touchpoint for our customers, and it must be high-performing, dependable, and user-friendly. Therefore, we are investing significantly in the quality and evolution of our mobile technology.Currently, our app is developed using React Native, but we are progressively adopting native capabilities in Swift and Kotlin. We are in the midst of a comprehensive transformation of the Android experience, transitioning towards a more native approach, and we invite you to join us on this exciting journey.

About FreetradeAt Freetrade, our vision is to simplify investing and make it accessible to everyone. By removing the complexities and high costs associated with investing, we empower millions to maximize their savings.Join us as we transform the investment landscape!We are expanding our team and seeking individuals who are eager to redefine the investment journey for our customers. If you are passionate about solving intricate problems and developing cutting-edge products, you will thrive in our environment.2026 is set to be a transformative year for us. Following our groundbreaking partnership with IG Group, we will continue as an independent entity while benefiting from the backing of a market leader.This year, we are ramping up our product development, introducing exciting features such as mutual funds, bonds, and family investment tools. We are also investigating how AI can enhance customer experiences.If you want to expand your technical expertise, develop new products, and work in a creative and innovative environment, this is the perfect opportunity for you!Why Join Our Engineering Team?Be part of a team that is revolutionizing the investment sector. As a Mobile Engineer, you will play a crucial role in creating and sustaining a scalable platform utilized by thousands daily. We embrace technical challenges, foster innovation, and provide solutions that truly matter. Here, your code will impact investors across the UK. Join us to turn your ideas into reality.The Freetrade Android application offers customers easy access to various investment opportunities in the UK, US, and EU markets.We are seeking a Mobile Engineer (Android) to join our dynamic team at Freetrade.This role requires a solid understanding of the Android platform, strong problem-solving abilities, and a commitment to skill enhancement while collaborating within a team-oriented environment.This is a unique chance to collaborate with experienced mobile engineers across both iOS and Android, enhancing your skills significantly.As part of our mobile engineering team, you will work on implementing new features while ensuring high customer satisfaction by addressing user queries and feedback. Collaborating with design, product, and QA teams, you will create user experiences that delight our customers.

Senior Android Software EngineerAt Deliveroo, we are on a mission to revolutionize the shopping and dining experience, powered by our commitment to impact, innovation, and growth. Our Engineering teams face complex technical challenges in a global, three-sided marketplace, creating and enhancing systems that serve millions of customers, riders, and partners every day.From real-time logistics to robust infrastructure and marketplace optimization, we design, build, and maintain technology that fuels Deliveroo’s expansive growth.We are seeking a Senior Android Software Engineer to join our dynamic team in London. In this role, you will contribute to the development and scalability of our top-tier mobile applications, ensuring an uninterrupted and high-performance experience for our diverse user base. This position is based in our London office with a hybrid work arrangement, typically requiring three days in the office.Explore our Engineering team to learn about what motivates us, our collaborative work environment, and what you can expect from us.Your ResponsibilitiesAs a member of the Consumer Tech team, you will focus on the complete customer journey—from the moment they launch the app to when their meal arrives—ensuring each interaction is seamless, quick, and dependable.Your daily activities will include:Lead technical execution by designing, developing, and scaling Android applications that manage complex, real-time interactions on a global scale.Enhance architectural frameworks and conduct code reviews to ensure the maintainability, visibility, and operational health of our mobile codebase.Collaborate with cross-functional teams (PMs, Experience Designers) to plan projects, guide technical decisions, and influence the team’s roadmap.Take ownership of large-scale features from conception to delivery, streamlining maintenance and ensuring operational readiness across our production systems.Foster the development of team members by mentoring peers, promoting efficiency, and actively participating in the engineering hiring process.What We’re Looking ForThe ideal candidate will possess substantial expertise in several of the following areas, with an eagerness to expand their knowledge in others:Extensive experience in developing Android applications, showcasing a robust understanding of the platform and its ecosystem.

Join our innovative Client Platform team at Spotify, an R&D studio dedicated to enhancing the productivity of client developers. Our mission is to optimize performance and stability across the Spotify applications, ensuring that users enjoy an exceptional experience.We achieve this by offering advanced observability and tools that capture critical performance metrics and stability data, presenting it to feature squads in a clear and actionable format. Our collaborative approach involves working closely with internal stakeholders to comprehend their needs and create a platform that seamlessly integrates with their workflows. Occasionally, we partner directly with feature squads to implement our tools and pinpoint areas for improvement within the app.Currently, we are developing the next-generation observability platform that consolidates various client observations into a unified view, empowering engineers to diagnose issues in real-time, identify bottlenecks, and effectively address bugs and regressions.

Role overview flohealth seeks a Senior or Lead Android Engineer based in London. The role focuses on developing and enhancing mobile apps that support users in managing their health. This position combines hands-on Android development with technical leadership responsibilities. What you will do Collaborate with designers, product managers, and fellow engineers to deliver new Android features and improvements Design, develop, and maintain Android applications, emphasizing usability and strong performance Influence technical decisions and contribute to the architecture of both new and ongoing projects Mentor junior engineers and share knowledge of best practices within the team Requirements Significant experience building and releasing Android applications Deep knowledge of Android frameworks and design patterns Comfort working collaboratively in cross-functional teams Background in mentoring or leading engineers is considered an advantage

Join SumUp as a Senior Android Engineer, where you'll play a pivotal role in developing our dynamic merchant-focused ecosystem. This is your chance to design and enhance high-impact solutions—such as Kiosks, Kitchen Display Systems (KDS), Customer Facing Displays (CFD), and POS peripherals—that support intricate retail and restaurant operations globally. In this position, you'll seamlessly integrate hardware and software, delivering exceptional experiences for millions of merchants and their clientele.Your Responsibilities:Lead the design and expansion of Android-based merchant solutions, specifically tailored for self-service Kiosks and specialized point-of-sale interfaces.Enhance and develop impactful features that elevate the experience for both merchants and consumers across a diverse range of products.Assist in our transition to Kotlin Multiplatform (KMP) to streamline business logic across various mobile platforms.Craft maintainable, accessible, and high-performing user interfaces utilizing Jetpack Compose.Enhance product reliability through the implementation of comprehensive testing frameworks and increased automated QA coverage for our hardware-integrated software.Work collaboratively with cross-functional teams to deliver integrated features that align with the requirements of global enterprise partners.Conduct code reviews, uphold architectural standards, and guide fellow engineers in the best practices for developing reusable UI components.

ASOS is seeking a skilled Android Engineer to join our dynamic technology team in London. In this role, you will be responsible for developing and enhancing our Android applications, ensuring a seamless user experience for our customers. You will collaborate with cross-functional teams to implement innovative solutions that align with our business goals.If you are passionate about mobile development and eager to contribute to a fast-paced and innovative environment, we want to hear from you!

Join Freetrade as a Mid-Level Android EngineerAt Freetrade, our mission is clear: to simplify investing and make it accessible for everyone. For too long, investing has been an intricate and costly endeavor, preventing millions from maximizing their savings. We're here to change that narrative.As we expand our team, we are on the lookout for individuals passionate about transforming how our customers invest and build their wealth. If you thrive on tackling complex challenges and are eager to develop innovative products, you will find your place with us.With an exciting year ahead, 2026 marks a significant milestone for us. Following our landmark partnership with IG Group, we will maintain our independence while benefiting from the support of an established leader in the industry.This year, we are accelerating our development plans and enhancing our product offerings, introducing features such as mutual funds, bonds, and family investment tools. Additionally, we are exploring the integration of AI to elevate our customers' experience.If you are eager to expand your technical expertise, contribute to innovative products, and work in a dynamic environment that embraces creativity and experimentation, this opportunity is tailored for you!Why Join Our Engineering Team?Become a vital part of a forward-thinking team that is redefining the investment landscape. As an engineer, you will be instrumental in developing and maintaining a resilient, scalable platform utilized by thousands daily. We address complex technical challenges, foster innovation, and create impactful solutions. Your code will not just operate; it will influence investment decisions across the UK.The Freetrade Android mobile application empowers customers to explore investment opportunities across the UK, US, and EU financial markets.We are seeking a skilled Android Mobile Engineer to join our dynamic team.The ideal candidate will possess a solid understanding of the Android mobile platform, demonstrate problem-solving abilities, and have a strong desire to enhance their skills within a collaborative team environment.This is a unique chance to collaborate with experienced mobile engineers across iOS and Android, fostering the development of your skills.As part of our dedicated mobile engineering team, you will implement new features and ensure high levels of customer satisfaction by addressing queries and feedback. Collaborating with design, product, and QA teams, you will craft exceptional user experiences that delight our customers.

About Checkout.com Checkout.com powers digital payments for brands such as eBay, ASOS, Klarna, Uber Eats, and Sony. The platform handles billions of transactions each year, making payments simple for businesses and consumers alike. Headquartered in London, Checkout.com operates from 19 offices across six continents. The team values performance and continuous improvement, working together to shape the future of fintech. Role Overview The Senior Mobile Engineer will help design and build mobile products that reach millions of users. This role focuses on creating user-friendly and scalable mobile experiences, collaborating with engineers and product leaders to deliver high-quality solutions. Responsibilities include defining architecture, leading technical investigations, and building the systems that support Checkout.com’s consumer products. What You Will Do Design and develop mobile experiences used by a global audience. Lead feature development from planning through deployment and ongoing support. Work closely with backend teams to align system capabilities with mobile needs. Champion best practices in testing, monitoring, and release processes to strengthen product reliability. Mentor team members, review code, and help shape the long-term technical direction for mobile at Checkout.com. Location This position is based in London.

Your ImpactAs a Senior Platform Engineer at DISCO, you will lead significant projects and play a pivotal role in the success of our engineering teams. Your expertise will inform long-term strategic planning, mentorship for senior engineers, and steer technical decisions across various teams or departments. Your focus will be on system design, implementation, and the ongoing maintenance and enhancement of DISCO’s distributed data platform.What You'll DoTechnical Leadership and Mentorship: Assume a leadership role in project teams, guiding engineers and influencing technical decisions, while innovating and solving complex organizational challenges.Performance Optimization: Design systems that emphasize high performance, scalability, and reliability.Ownership: Proactively identify and address potential issues within products and systems, creating actionable plans for resolution.Stakeholder Engagement: Collaborate closely with stakeholders including product managers, designers, developers, and executives to ensure architectural designs align with business needs and customer expectations.Software Development: Develop, maintain, and enhance sophisticated, scalable, high-performance data software solutions tailored for our big data platform at a petabyte scale, ensuring architectural excellence.Code Quality and Optimization: Commit to and enhance code quality through thorough review processes, optimization techniques, and adherence to industry best practices.Technical Problem Solving: Tackle intricate technical challenges with innovative problem-solving approaches.Collaboration and Communication: Work effectively within the engineering team and cross-functional teams, fostering collaboration with engineers, product managers, and stakeholders during project planning and execution.Continuous Learning and Adaptation: Stay abreast of the latest technological trends and advancements, continuously improving your skills and knowledge to contribute innovative ideas to the team.Technical Documentation: Generate and maintain comprehensive technical documentation to ensure clarity and accessibility of information.Data Platform Development: Construct and sustain robust and scalable data platforms to facilitate analytics, machine learning, and business intelligence.Data Integration and ETL: Design and optimize ETL (Extract, Transform, Load) processes, ensuring efficient data integration.

About Tripadvisor The Tripadvisor Group is dedicated to connecting travelers with experiences that are truly worth sharing. Our mission is to be the world’s most reliable source for travel information and experiences. Using our innovative brands, advanced technology, and extensive capabilities, we link our global audience to partners through engaging content, travel insights, and dynamic marketplaces for accommodations, activities, dining, and various travel categories. Tripadvisor, Inc. (Nasdaq: TRIP) oversees a diverse portfolio of travel brands, including Tripadvisor, Viator, and TheFork. About the Role We are seeking a talented Software Engineer II (Android) to join our rapidly expanding mobile team. This position is available to candidates who are within a commutable distance (generally within 2–3 hours) of our office hubs in Oxford or London. We value a flexible work environment while cherishing meaningful in-person interactions for collaboration. Expect a remote-first working model with occasional in-person gatherings at your nearest office for team alignment, planning, and other significant events. At Tripadvisor Experiences, we foster a friendly and engaging atmosphere where our primary goal is to accomplish tasks effectively. Our engineers collaborate closely with product managers and designers, engaging in every stage of the development process from design to deployment and feedback. Most of our engineers are involved in releasing code to production every few days, supported by a daily release cycle. What You'll Do As a member of Tripadvisor Experiences, our engineers are adaptable problem-solvers ready to tackle a variety of technical challenges. This full-stack role primarily focuses on Android development, with opportunities for backend projects as well. You don’t need to be an expert in every area; if you’re enthusiastic about learning, we’ll provide the support you need to enhance your skills. Our technology stack includes Kotlin, Coroutines, Jetpack Compose, Cursor, and GraphQL, organized in a modular layout following the clean architecture principles with MVVM. Write code! Our engineers prioritize their passion for coding and do what they excel at. Engage with code at all levels – while the primary focus is on app development, you will also have chances to work on backend microservices. Collaborate closely with Product and Design teams to create user-centric solutions.

Join the Kroo TeamAt Kroo Bank, we are on a mission to redefine banking by creating a customer-centric financial institution that emphasizes responsible money management and leverages cutting-edge technology to simplify and enhance everyday banking experiences. As a fully regulated bank in the UK, we are supported by dedicated long-term investors and are rapidly expanding our customer base as we pursue ambitious goals. We prioritize speed, thoughtful decision-making, and high standards in product development, risk management, and employee welfare.Your Role and Responsibilities:As the Mobile Platform Tech Lead, you will be pivotal in fortifying the technical framework of our mobile banking application, ensuring it is secure, high-performing, reliable, and scalable to meet evolving customer and product demands. You will lead a dedicated mobile platform team and collaborate closely with engineering, product, design, and compliance teams to uphold exceptional technical standards within our React Native ecosystem and its associated native integrations. Your key responsibilities will include:Mentoring the mobile platform team, offering technical guidance, coaching, and effective prioritization of platform initiatives.Establishing, executing, and maintaining engineering standards focused on mobile security, observability, performance, resilience, and release quality.Being a hands-on technical leader in developing and maintaining shared mobile platform capabilities using React Native and TypeScript.Collaborating on architectural decisions regarding React Native, native modules, and integrations across Kotlin, Swift, Objective C, and Java.Working alongside product feature teams to ensure smooth release processes that meet quality benchmarks and comply with regulatory requirements.Enhancing automated testing practices, including unit, integration, and end-to-end testing to bolster confidence in release quality.Improving mobile engineering workflows through enhancements to continuous integration, continuous delivery, and deployment processes.Overseeing production incident management and release activities, ensuring timely resolutions and effective communication.Collaborating with design and product teams to refine and maintain shared UI components, platform standards, and mobile design system capabilities.Implementing and continuously improving mobile observability tools, analytics, logging, and exception monitoring to support stability and informed decision-making.Championing secure application development practices and facilitating compliance within a regulated banking environment.Identifying and pursuing opportunities to enhance platform stability, developer productivity, and the long-term maintainability of the mobile application.

Join TransPerfect, a forward-thinking organization with a vibrant startup culture, as a Mobile Engineer specializing in Flutter. In this pivotal role, you will be instrumental in creating outstanding user experiences for both iOS and Android platforms. This full-time hybrid position encourages both independent and collaborative efforts within a dynamic team dedicated to delivering cutting-edge products.Your expertise in developing mobile applications using Flutter will be essential as you build new components and features from the ground up. You will be part of a team that values innovation and creativity, ensuring that our clients receive the best possible service through our technological advancements.About the Team: The TechOps team at TransPerfect has played a crucial role in our company's achievements over the last decade, streamlining processes for clients and colleagues alike. Our work ranges from enhancing workflows to developing core services that power our GlobalLink platform, all aimed at simplifying complex ecosystems for users.Your Responsibilities:Act as the subject matter expert on mobile app development, guiding the team in defining best practices, design thinking, and deployment processes.Collaborate closely with product managers, engineers, designers, and QA teams to create engaging user experiences on both iOS and Android platforms.Lead the delivery of significant mobile app features, components, and comprehensive application solutions in partnership with technical leads and senior engineers.Thrive in an agile environment while managing internal and external implementation requirements and expectations.Provide constructive feedback to technical staff throughout the software lifecycle to align development priorities with business objectives.Write clean, efficient, and maintainable code in accordance with best practices and coding standards.Stay informed on the latest trends, technologies, and best practices in mobile development.

Join Us in Revolutionizing the Creator Economy with AIFanvue is a leading force in the rapidly evolving creator monetization landscape. Our AI-driven platform empowers creators to engage, connect, and earn directly from their audiences on a grand scale. Following our recent Series A funding, we have achieved over $100 million in annual recurring revenue, experiencing triple-digit growth year-over-year and supporting a vibrant community of hundreds of thousands of creators and millions of fans worldwide.As a Platform Engineer at Fanvue, your mission will be to streamline processes for our engineering teams. This role is pivotal in developing the infrastructure, tools, and foundational components that enable our product teams to deliver solutions swiftly, safely, and confidently at scale. Your ResponsibilitiesConstruct and uphold core platform infrastructure across diverse cloud environmentsEnhance CI/CD pipelines to facilitate rapid, secure, and consistent deploymentsDesign and implement observability, monitoring, and alert systems for platform servicesDevelop self-service tools and platform primitives that empower teams to operate independentlyCollaborate with product teams to assess infrastructure needs and eliminate obstaclesBoost reliability, scalability, and cost-effectiveness across core systemsManage incidents, perform post-incident analyses, and implement lasting solutionsContribute to the documentation, standards, and best practices for the platform Who You AreProven experience as a platform, infrastructure, or backend engineerProficient in working with cloud platforms and distributed systemsFamiliar with infrastructure as code, CI/CD systems, and monitoring toolsPossess a product-oriented mindset and a collaborative spirit

Join our dynamic team as a Reverse Engineer specializing in Mobile Software Security. In this role, you will leverage your expertise in reverse engineering and security analysis to identify and mitigate threats in mobile applications and operating systems. Your contributions will play a crucial role in enhancing the security posture of our clients.Key Responsibilities:Conduct intelligence analysis to identify and assess potential threats.Offer subject matter expertise to support various operational initiatives.Identify and evaluate new intelligence sources related to current and emerging technological threats.Skills and Expertise Required:Proficient in assembly language.Hands-on experience with Android applications and operating systems.A minimum of 3 years of relevant experience in reverse engineering and code-level security auditing, with a solid understanding of assembly language and the ability to unpack obfuscated code.Experience in both static and dynamic analysis of malicious binaries.Familiarity with Java programming.Strong analytical skills in security-related data analysis.Proficient with tools such as IDA Pro and OllyDbg.A robust foundation in security engineering, computer and network security, and authentication protocols.Qualifications:A Bachelor's degree in Engineering or a related field, or equivalent practical experience.

About UsYouLend is a dynamic and rapidly expanding FinTech company, recognized as the premier embedded financing platform for many leading e-commerce platforms, technology firms, and Payment Service Providers globally. Our innovative software platform empowers partners to enhance their value proposition by providing flexible financing products under their own branding to their merchant networks, all while mitigating capital risk.With backing from EQT, a top-tier Private Equity firm, we have achieved over 100% growth year-on-year since 2020. Headquartered in London, UK, we also operate across several European nations and the United States, serving notable partners including eBay, Amazon, Just Eat, Shopify, and Stripe.The RoleWe are looking for an experienced Senior Platform Engineer to join our Dev Enablement team. In this role, you will empower product engineers, enabling them to deliver high-quality code more swiftly and reliably. You will be responsible for building systems that enhance developer productivity, optimize CI/CD processes, and improve infrastructure efficiency, all while leading through technical excellence, collaboration, and mentorship.