About Client: A FTSE 250 global fintech company headquartered in London with a presence in 18 countries and five continents. Their award-winning products and platforms empower go-getters around the world giving them access to over 19,000 financial markets. About the Role: We are looking for a highly skilled and passionate Senior Android Developer with a strong command over Kotlin and a solid grasp of agile methodologies, and modern engineering practices such as Test-Driven Development (TDD) and Extreme Programming (XP). If you thrive in a team-oriented environment, love pair programming, and are eager to build high-quality Android applications, we'd love to meet you. Key Responsibilities: Design, develop, and maintain robust Android applications using Kotlin. Work closely with cross-functional teams in an agile and XP environment. Engage in pair programming and help foster a collaborative engineering culture. Set up and maintain CI/CD pipelines to streamline the deployment process. Adhere to TDD principles and write clean, maintainable, and well-tested code. Participate in code reviews, daily stand-ups, retrospectives, and planning meetings. Stay up to date with Android development best practices, tools, and trends. Required Skills & Qualifications: 4 years of hands-on experience in Android development. Proficiency in Kotlin and Android SDK. Experience with CI/CD tools like Jenkins, GitHub Actions, Bitrise, or similar. Strong understanding and application of Test-Driven Development (TDD). Experience working in Extreme Programming (XP) environments. Comfortable with pair programming and agile ceremonies. Good communication, critical thinking, and team collaboration skills. Ability to work in a fast-paced, delivery-driven environment