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hedgehog lab

Senior Android Engineer (Contract, Outside IR35)

hedgehog lab Leeds, England, United Kingdom

Business Consulting and Services · 51-200 employees

3 d ago
Remote android Senior (5-10 yrs) Contractor United Kingdom
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About the role

You will build new features and screens using Jetpack Compose while maintaining and migrating existing XML and Data Binding code. Additionally, you will participate in the full software development lifecycle, including unit testing, debugging, and code reviews within an MVVM architecture.

What they look for

Android Development Kotlin Jetpack Compose MVVM Hilt Dagger REST APIs JUnit MockK Coroutines Flow XML Data Binding Mobile Security Java

Requirements

Candidates must have strong commercial experience in Kotlin, Jetpack Compose, and dependency injection frameworks like Hilt and Dagger. Proficiency in unit testing with JUnit and MockK, along with a solid understanding of mobile security practices, is required.

Benefits

Consultancy team environment Modern codebase Regulated banking project experience

Full 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

How to apply

If this sounds like you, apply below and we'll be in touch.

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