Mobile Engineer; Android

Mobile Engineer (Android)

Join to apply for the Mobile Engineer (Android) role at Teya.

Hew! We're Teya. Teya is a payment and software service provider, headquartered in London, serving small, local businesses across Europe. Founded in 2019, we build easy-to-use, integrated tools that enable our members to accept payments and boost business performance.

At Teya we believe small, local businesses are the lifeblood of our communities. We’re here because we don’t believe there’s a level playing field that gives small businesses a fighting chance against the giants of the high street. We see banks and legacy service providers making things harder for them. We don’t think the best technology or the best service should be reserved for those with the biggest headquarters.

We fight for a future where small, local businesses can thrive, and we commit the same dedication they offer all of us.

We’re seeking an experienced Android Developer to help build and maintain our Point of Sale (POS) application as well as other related applications, used by small and medium businesses worldwide. You’ll work on payment processing, inventory management, hardware integrations, refactoring, and ensure the app is robust, scalable, and production-ready.

• Develop and maintain Android features in Kotlin using Clean Architecture
• Apply MVVM/MVI design patterns across multi-module projects
• Integrate with REST APIs, payment SDKs, and hardware (printers, scanners, terminals)
• Build and maintain SQLite databases with ORM solutions (schema migrations, tuning, indices)
• Support multithreading and async flows with Kotlin Coroutines and Rx Java
• Write unit and integration tests to ensure reliability
• Contribute to refactoring legacy components into modular, testable structures
• Support gradual migration from XML UIs to Jetpack Compose
• Work closely with product teams to anticipate side effects, improve maintainability, and ensure observability (logs, metrics, diagnostics)

• 5+ years of Android development
• 3+ years working on a large-scale application within a team

• Expert in Kotlin
• Clean Architecture, domain-driven design, and modularization
• MVP, MVVM, MVI patterns
• RxJava 2 and Kotlin Coroutines
• SQLite with ORM tools (Requery, Room, or similar)
• Dependency injection mainly with Dagger2
• REST API integration
• Strong testing & refactoring background

• Jetpack Compose UI
• Firebase services
• Payment SDKs (Sum Up, Zettle, PAX terminals)
• Gradle Kotlin DSL
• Fintech domain experience
• Experience working with non-Google Play services devices

Teya is proud to be an equal opportunity employer. We are committed to creating an inclusive environment where everyone, regardless of race, ethnicity, gender identity or expression, sexual orientation, age, disability, religion, or background can thrive and do their best work. We believe that a diverse team leads to better ideas, stronger outcomes, and a more supportive workplace for all. If you require any reasonable adjustments at any stage of the recruitment process whether for interviews, assessments, or other parts of the application—you encourage us to let us know.

We are committed to ensuring that every candidate has a fair and accessible experience with us.

Seniority level:
Mid-Senior level

Employment type:

Full-time

Job function:
Engineering and Information Technology