Android Engineer

Starling; Greater London; Hybrid; GBP 60,000 - 90,000; Full time

Job summary

Starling is seeking an Android engineer to join our fast-moving mobile team. You’ll work on our in-house banking app written in Kotlin using MVVM, Jetpack Compose, and modern Android tooling.

You’ll collaborate with cross-functional squads, implement features, improve performance, and contribute to automated tests with Espresso and JUnit. Release processes are streamlined and continuous delivery is encouraged.

Qualifications

• Proficient Android development with Kotlin and MVVM architecture.
• Experience with Jetpack Compose and modern Android tooling.
• Strong testing skills with Espresso and JUnit.
• Collaborative and cross-functional team mindset.

Responsibilities

• Develop Android app features and maintainable codebase.
• Write automated tests and contribute to CI pipelines.
• Collaborate with product, design and backend teams to deliver user-centric features.
• Participate in code reviews and improve app performance and UX.

Skills

Android development

Kotlin

MVVM

Jetpack Compose

Testing

Tools

Dagger/Hilt

Espresso

JUnit

Realm/Room

Job description

Starling is the UK's first and leading digital bank on a mission to fix banking! We built a new kind of bank because we knew technology had the power to help people save, spend and manage their money in a new and transformative way.

We're a fully licensed UK bank with the culture and spirit of a fast-moving, disruptive tech company. We're a bank, but better: fairer, easier to use and designed to demystify money for everyone. We employ more than 3,000 people across our London, Southampton, Cardiff and Manchester offices.

Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech. We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be, innovation and collaboration will be at the core of everything you do. Help is never far away in our open culture, you will find support in your team and from across the business, we are in this together!

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building things, designing, discovering, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers. Our purpose is underpinned by five Starling values: Listen, Keep It Simple, Do The Right Thing, Own It, and Aim For Greatness.

Hybrid Working

We have a Hybrid approach to working here at Starling - our preference is that you're located within a commutable distance of one of our offices so that we're able to interact and collaborate in person. In Technology, we're asking that you attend the office a minimum of 1 day per week.

Our Engineering Environment

Starling engineers are excited about helping us deliver new features, regardless of what their primary tech stack may be. Hear from the team in our latest blogs or our case studies with Women in Tech.

We are looking for engineers at all levels to join the team. We value people being engaged and caring about customers, caring about the code they write and the contribution they make to Starling. People with a broad ability to apply themselves to a multitude of problems and challenges, who can work across teams do great things here at Starling, to continue changing banking for good.

We have built our entire banking platform in house and mostly in Java. We are looking for people who want to work on building the tooling that is used by our engineers on a daily basis.

Our mobile engineers work in cross-functional feature teams arranged across broader engineering groups, and as an Android engineer you'll be working in at least one of such teams. You are empowered to make the decisions necessary for the platform and to provide insight to the team leads on such projects. You'll also be working closely with other Android engineers with a variety of experience levels and interests, helping us improve and develop our Android app, CI automations and tooling. You'll be committing, reviewing and shipping new code right from the first week!

Requirements

As an Android engineer, you'll report to and catch‑up regularly with a mobile lead engineer who will support you on your journey in Starling. We have a strong collaborative and open culture here so you'll find support outside your team too.

As a fully digital bank, we are looking for engineers that are able to understand and prioritise security when implementing new features, fixing bugs or making technical improvements, across all the layers. Our team is designing, building and releasing new screens every day, for this reason we are interested in people with a particular focus on Accessibility along with writing clean and maintainable code.

The way to thrive and shine within Starling is to be a self-driven individual and be able to take full ownership of everything around you: From building the code, shipping and maintaining it, to sharing knowledge with your colleagues and making sure all processes are efficient and productive to deliver the best possible results for our customers.

Our aim is to deliver stable, resilient and high quality code, that is why testing is another key quality we look for when expanding our team. We use Espresso to write our UI/E2E Test and JUnit to write our Unit Tests across all layers of the application, as well as manually test all features before they go into production. We also work closely with QA engineers to ensure we have an additional level of testing when working on complex feature delivery.

The Android world

In the Starling Android application we are proud to be working with some of the latest technologies in the industry. When adopting new technologies we always consider as a team whether it's the best choice for our product and our users.

Our codebase is written entirely in Kotlin. We use MVVM to structure our presentation layer and Jetpack Compose with Material 3 for our UI, alongside a legacy of View/XML-based screens that we are progressively migrating. We use Kotlin Coroutines and Flow throughout the application stack for handling asynchronous operations, with RxJava retained in older parts of the codebase. We are transitioning from Dagger 2 to Hilt as our dependency injection framework. Realm is our primary choice for persistence, with an ongoing migration to Room.

We want our app to look great for the Android platform and have worked closely with our designers to set up a component library and have themed our app accordingly. Feature parity is important to us so Android and iOS apps are often built alongside each other.

We release app updates at least once a week, and the role of release manager is rotated equally throughout the Android team. We've worked to automate as much of the release as we can, with our own internal tooling allowing us to standardise our release steps from uploading to the app stores into receiving approvals for safer rollouts.

As a team we meet together every week to talk through pain points and potential improvements we'll like to make to the project. We regularly meet in real life to attend conferences and meet-ups together too!

Interview process

Interviewing is a two way process and we want you to have the time and opportunity to get to know us, as much as we are getting to know you! Our interviews are conversational and we want to get the best from you, so come with questions and be curious. In general you can expect the below, following a chat with one of our Talent Team:

• Initial interview with an engineer
• Take home tech test
• Live coding