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Bankjoy is a Y Combinator and Bessemer Venture Partner-backed fintech startup transforming how community banks and credit unions operate. The company provides modern digital banking products including mobile banking, online banking, account opening, loan origination, and conversational AI, with a mission to revolutionize banking infrastructure through digital transformation.
As a Senior Android Engineer, you will lead the development of native Android solutions for digital banking products, partnering cross-functionally with product, design, and engineering teams to deliver high-quality, user-centric experiences.
Key responsibilities include:
- Design, develop, and maintain Android applications using Kotlin with focus on performance, scalability, and usability
- Architect robust, maintainable solutions aligned with best practices and long-term product goals
- Participate in feature planning, technical design, and effort estimation
- Identify, troubleshoot, and resolve complex product and performance issues
- Maintain and improve code quality through testing, code reviews, and continuous refactoring
- Write and maintain unit tests to ensure reliability and stability
- Keep the codebase current with evolving Android platforms and frameworks
- Maintain and enhance CI/CD pipelines and development workflows
- Document code, systems, and processes to support team knowledge sharing
- Mentor junior engineers and contribute to strong engineering culture
- Stay current with emerging Android technologies and trends
REQUIREMENTS:
- 7+ years of professional software development experience, including 5+ years focused on Android development
- Strong proficiency in Kotlin and modern Android development, with experience building scalable UI, state management, and app architecture
- Proven experience designing, building, and shipping high-quality, scalable Android applications
- Strong understanding of software architecture patterns (MVVM, MVC, etc.) and best practices
- Solid experience integrating RESTful APIs, backend services, and third-party libraries
- Strong understanding of UI/UX principles and building intuitive user experiences
- Demonstrated ability to lead technical initiatives and deliver projects end-to-end
- Experience mentoring engineers, conducting code reviews, and improving team code quality
- Strong cross-functional collaboration skills with product, design, and backend teams
- Ability to make sound technical decisions and balance trade-offs in fast-paced environments
- Solid experience with testing practices (unit testing, UI testing, TDD) and maintaining high code quality standards
- Proficiency with Git and modern development workflows
- Track record of success in high-growth or startup environments, demonstrating ownership and adaptability
- Exceptional problem-solving skills, strong communication, and collaborative mindset
- Bachelor's degree in Computer Science, Computer Engineering, or equivalent experience
