Senior Android Engineer
External
Incard · London, UKPrepare for this interview
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Responsibilities
- Build, scale, and maintain Incard's Android application using Kotlin and Jetpack Compose
- Design and evolve scalable Android architecture beyond MVP, using clean, modular patterns
- Collaborate closely with Product, Backend, Android and iOS teams to deliver high-quality features
- Own performance optimisation, stability, and memory management across the app
- Apply product thinking when implementing features - not just engineering execution
- Write and maintain unit tests, UI tests, and automated checks to ensure long-term quality
- Participate actively in code reviews, refactoring efforts, and technical discussions
- Help raise the bar for Android engineering standards, tooling, and best practices
Requirements
- 5+ years of experience building production Android applications in fast-paced environments
- Strong expertise in Jetpack Compose, including performance optimisation and memory management
- Proven experience designing scalable Android architectures using clean, modular approaches
- Solid understanding of Coroutines and Flow for concurrency and state management
- Experience writing unit tests and UI tests
- Product-minded engineer with strong attention to detail and edge cases
- Comfortable using AI tools (e.g. Cursor, modern LLMs) to accelerate development responsibly
- Strong communication skills, open to feedback and continuous improvement
- Proactive problem-solver who takes ownership rather than waiting for direction
- Our Technical Stack
- Clean Architecture with feature-based modular structure
- Repository & use-case patterns
- Kotlin Coroutines & Flow
- Jetpack Compose
- Hilt for dependency injection
- JUnit 4, MockK, Coroutines Test
- Retrofit, GSON, Coil
- GitHub Actions & Fastlane for CI/CD
- Detekt for static analysis
- 100% Kotlin, Gradle (Kotlin DSL), KSP
- Firebase, Sentry, Google Analytics
Benefits
Additional Information
About Incard Incard's mission is to build the financial operating system for entrepreneurs. We are focused on creating a system where business banking, financial tools, and application logic are coordinated into a single control layer. Through the app store, entrepreneurs and developers can build industry-specific functionality as their business evolves. Our team is small, highly motivated, and focused on engineering excellence. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company's mission. Leadership is given to those who show initiative and consistently deliver excellence. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates. Who We're Looking For We're looking for a Senior Android Engineer who cares deeply about architecture, performance, and product quality and who enjoys building scalable, well-crafted mobile experiences in a complex domain. You'll collaborate closely with Android, iOS, Backend, and Product teams to build and evolve Incard's Android app, used daily by modern e-commerce businesses to manage spending, cards, and financial insights. This role is ideal for someone who thrives in fast-moving environments, takes ownership beyond tickets, and brings strong product thinking alongside technical excellence.
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