About The Role FDM is a global business and technology consultancy seeking a Senior Android Developer to work for our client within the finance sector. This is initially a 12 month contract with the potential to extend and will be a hybrid role based in Bristol. Our client is seeking a Senior Android Developer to design, build, and maintain high-quality, secure, and scalable Android applications for customer-facing banking products. The role requires strong expertise in Kotlin and Java, modern Android architecture and UI best practices, API integration, and Agile delivery, alongside the ability to collaborate cross-functionally and provide technical leadership and mentorship within a financial services environment. Responsibilities: Design, develop, and maintain high-quality Android applications using Kotlin and Java, following Android SDK best practices Build secure, scalable, and performant mobile solutions for customer-facing banking products Create responsive and intuitive UI experiences across multiple Android devices, screen sizes, and OS versions Apply modern Android architecture patterns (MVVM) and software design principles (SOLID, DRY) Integrate applications with backend services via RESTful APIs, ensuring reliability and security Collaborate with Product, Design, and Engineering teams within an Agile delivery environment Ensure code quality through testing, code reviews, CI/CD, and automated testing practices Provide technical leadership through mentoring, guidance, and promotion of Android best practices About You Essential Excellent knowledge of Kotlin / Java Strong knowledge of Android SDK, Android UI design principles, patterns, and best practices Professional hands-on experience and working knowledge in designing a mobile experience for variable screen sizes in variable versions of Android phones and tablets Desirable: Knowledge of the open-source Android ecosystem and the libraries available for common tasks and benchmarking and optimisation Unit, UI and Snapshot Testing Solid understanding of software architecture (MVVM), design patterns (SOLID, DRY) and best practices (specifically Googles Android design principles, interface guidelines) In-depth knowledge and experience of interacting with RESTful APIs Demonstrated experience collaborating with Product and Design colleagues to drive outcomes for customers A good understanding of Git, source code management and managing change. Knowledge and experience of agile development practices, continuous integration and test automation (e.g. TDD, BDD). Excellent interpersonal and team working skills Experience of technical guidance and mentoring About Us We are a business and technology consultancy and one of the UKs leading employers, recruiting the brightest talent to become the innovators of tomorrow. We have centres across Europe, North America and Asia-Pacific, and a global workforce of over 3,500 Consultants. FDM has shown exponential growth throughout the years, firmly establishing itself as an award-winning employer and is listed on the FTSE4Good Index. Diversity and Inclusion FDM Group is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, colour, religion, sex, sexual orientation, national origin, age, disability, veteran status or any other status protected by federal, provincial or local laws. Why join us Career coaching, mentoring and access to upskilling throughout your entire FDM career Assignments with global companies and opportunities to work abroad Opportunity to re-skill and up-skill into new areas, develop non-linear career paths and build a skillset within your field Annual leave and work-place pension