TetriQ Solutions
Android Developer
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Role: Android Developer
Type: Permanent or Contract
Location: London, UK (Hybrid)
Work Authorization: Valid UK Work Permit
Job Description
Expert-level proficiency in Kotlin and strong Android SDK fundamentals. Hands-on experience with Jetpack Compose and interest in developing new features using Compose. Proven experience building, scaling, and maintaining consumer-facing Android applications. Experience working in large, modular Android codebases. Strong knowledge of RxJava or equivalent reactive programming frameworks. Strong testing mindset with experience in:
- JUnit
- Espresso
- Unit Testing
- Screenshot/UI Testing
Product-focused development approach with experience in experimentation, analytics, and iteration. Strong expertise in Android performance profiling and optimisation. Solid understanding of Object-Oriented Programming and design patterns. Comfortable leveraging AI-powered development tools such as Claude Code. Excellent collaboration and communication skills. Experience working with monetisation, subscriptions, credits systems, and in-app purchase flows. Strong computer science fundamentals including algorithms, data structures, concurrency, and multithreading.
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Good to Have
- Computer Science or related technical degree.
- CI/CD experience (TeamCity or similar).
- Experience with Appyx, RIBs, MVICore, or similar architectures.
- Kotlin Coroutines and Flow.
- gRPC, Protobuf, or schema-driven API tools.
- Socket-based networking and binary protocols.
- Gradle build tooling at scale.
- Experience managing multiple app flavours from a single codebase.
- A/B testing frameworks and feature flagging.
- Analytics, remote monitoring, and performance metrics.
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Key Responsibilities
- Design, develop, and deliver Android features for millions of users.
- Own and drive technical and product initiatives from concept through production support.
- Build modern Android UI using Jetpack Compose and contribute to migration from XML-based UI.
- Collaborate closely with Backend, iOS, QA, Product, and Design teams.
- Work with Protobuf/gRPC-based APIs and own the client-side implementation.
- Develop and maintain automated test coverage using JUnit, Espresso, and visual regression testing.
- Ensure application quality through thorough end-to-end testing across supported devices.
- Run A/B tests, evaluate results, and optimise user experience.
- Participate in code reviews and mentor team members.
- Contribute to incident management, root cause analysis, and post-mortem activities.
- Build and enhance monetisation features including subscription and credit-based systems.
- Leverage AI tools to accelerate development, experimentation, and delivery.
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