Senior Android Engineer (Contract, Outside Ir35)

Senior Android Engineer (Contract, Outside Ir35)

Hedgehog Lab | Manchester, ENG, GB

Posted 6 days ago

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Description

Contracting often means being dropped into a client's team as the outsider.


Here you'll join a hedgehog lab team delivering a UK bank's Android app as it moves to Jetpack Compose.


It's a contract outside IR35, expected to start in January 2027 and run for around 6 months. You'll work on a remote first basis.


What's in it for you


You'll be part of a consultancy team that owns the delivery, working with people who care about testing, code reviews and code quality.


You'll build new UI in Compose from the start, on a codebase that's actively modernising.


You'll add regulated banking work to your CV, which carries weight on future contracts.


Who you'll be doing it for


hedgehog lab is a digital product consultancy with 20 years of experience helping public and private sector organisations through digital transformation. We're B Corp and Great Place to Work certified.


You'll be part of a hedgehog lab delivery team working on our client's customer-facing Android app. Our client is a well-known UK bank.


What you'll be doing



  • Building new features and screens in Jetpack Compose

  • Maintaining XML and Data Binding screens and migrating them to Compose

  • Working in Kotlin, with some legacy Java, within an MVVM architecture using Hilt and Dagger

  • Consuming REST APIs and maintaining third-party SDKs

  • Writing unit tests with JUnit and MockK so changes and refactors stay safe

  • Debugging on emulators and real devices, including performance issues

  • Reviewing pull requests and taking part in sprint planning, stand-ups and retros


Experience you must have



  • Commercial Android experience in Kotlin, including Coroutines and Flow

  • Jetpack Compose, plus XML layouts, Data Binding and enough Java to work on older code

  • MVVM and dependency injection with Hilt and Dagger

  • Unit testing with JUnit and MockK, and using tests to make safe changes in large codebases

  • Mobile security, particularly protecting sensitive data and securing network calls


Experience that's nice to have



  • Banking, fintech or other regulated apps

  • SAFe or another scaled agile framework

  • Migrating XML screens to Compose

  • UI testing with Espresso or Compose

  • Certificate pinning, code obfuscation and root detection

  • Accessibility experience


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