Android Engineer (Kotlin)

Posted on Mar 10, 2023

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Job Details

โŒ›Full Time
๐ŸŒ Europe

About Qonto

Join Qonto. Help create the finance solution that energizes SMEs and freelancers. Qonto is the leading European business finance solution. It simplifies everything from everyday banking and financing, to bookkeeping and spend management. Qonto energizes SMEs and freelancers so that they can achieve more.

Why join Qonto?

The Qonto adventure was born from our own experience: as new entrepreneurs, we were frustrated with traditional banks. Their services were time-consuming and complex, and the tools we were given were not suited to small, modern companies. So we started to build an easy business banking solution ourselves. Of all that we've achieved since 2016, our talented team remains our greatest source of pride. Qontoers come from diverse backgrounds and are passionate about creating the best product, one with a strong impact and a great user experience.

If you're looking to be part of an ambitious team that's modernizing a dusty industry through design & technology combined with great customer care, get in touch!

- Alexandre Prot and Steve Anavi โ€“ Co-founders @Qonto

Diversity and inclusion lies at the heart of Qonto.

  • 40% female presence in leadership teams
  • 44% female workforce (vs 17% in the Tech sector generally)
  • 33% of Qontoers are non-French
  • Over 50 nationalities (and counting...)

A few figures about Qonto:

  • Alexandre Prot and Steve Anavi created Qonto in July 2017
  • 1,000 happy Qontoers (And we're hiring more!)
  • 350,000 + companies are using Qonto
  • โ‚ฌ622m raised with VCs and business angels including Valar, Alven, the European Investment Bank, Tencent, DST Global, Tiger Global, TCV, Alkeon, Eurazeo, KKR, Insight Partners, Exor Seeds and Gaingels.
  • Listed in the French Tech #Next40, bringing together the most promising young companies of the French Tech industry.
  • 1st B2B account for finance management to get a Payment Institution licence.

Our offices in Europe:

  • Paris
  • Berlin
  • Barcelona
  • Milan
  • Belgrade

Qonto is an open-minded company. Donโ€™t tick all the boxes? Apply, and weโ€™ll let you know if we think you could fit the role. You never know ๐Ÿ˜‰

The Position

The mobile engineering team at Qonto currently has over 70 highly skilled engineers distributed in cross-functional teams, who come from all over the world, working closely to shape the best business finance solution app.

๐Ÿ‘ฉโ€๐Ÿ’ป๐Ÿง‘โ€๐Ÿ’ป As an Android Engineer at Qonto, you will

  • Build innovative financial features. You will work on critical features (both architecture and UI) for our end users.
  • Collaborate with back-end teams, designers and product managers.
  • Solve real-time synchronization challenges and work on new initiatives.
  • Maintain a high level of quality by implementing continuous refactoring and unit testing to constantly improve the codebase.
  • Help scale our Android codebase while maintaining our strong engineering culture.

Our app is 100% written in Kotlin and based on MVVM & Clean architecture, using the Coordinator pattern, Coroutines and Flows. We have started challenging initiatives such as modularization, reducing the build time, migrating towards Jetpack Compose. Our CI is composed of Gitlab, Firebase (distribution, Test Lab) and Sonar.

A high focus on tech quality is done:

  • Using Clean Code / SOLID principles
  • Investing effort on tests: 7300+ unit tests (66% coverage) and +1100 UITests
  • Following a component approach, using our design system.

๐Ÿง  What you could work on

As part of our Engineering department, you will work within one of our cross-functional teams, each team handling part of our product. A few examples of these teams are:

  • ๐Ÿ’ณ Cards: Build all the functionalities around Qonto credit cards. For example, the cards order flow, the cards settings screens, the insurance page.
  • โœˆ๏ธ Onboarding: Guide users through a delightful and frictionless sign-up experience.
  • ๐Ÿ’ถ Spend Management: Build seamless workflows for employees to make payments and for finance teams to manage expenses.
  • ๐Ÿ’ธ Get Paid: Create a simple and efficient invoicing tool to help our users get paid faster and easier while building a smooth relationship with their clients.
  • ๐Ÿงฎ Bookkeeping: Provide a Bookkeeping solution that saves our clients time while ensuring control over their accounting requirements (e.g. receipts, vat, accounting records).

๐Ÿค” What you can expect

  • Work in a fast-paced environment with a strong focus on quality
  • Build and improve features used by 350K+ clients across Europe
  • Learn and grow from other team members through expert coaching and mentorship
  • Collaborate with other teams on tech challenges, spec reviews, brainstorming & problem-solving sessions
  • Share knowledge among the whole tech and product team (internal and external conferences, weekly meetings, Tech Monthlies) and the community (articles, meetupsโ€ฆ)

๐Ÿค Your future Head of

Your Head of will be either Guillaume or Sylvain, who are in charge of the Mobile team.

Their background?

Coming from a Software Engineering background, Guillaume started to nurture his mobile practices +10 years ago. Over the past years, he worked in the music streaming industry and then on building a marketplace for homeowners and tradespeople for London-based startups before joining Qonto. After 6 months as an Android developer, he seized the opportunity to build and lead the mobile team.

Having graduated from an engineering school with a focus on hardware, Sylvain discovered software engineering working at Sony +10 years ago. Following this experience, he joined the French second-hand marketplace leader where he stayed for more than 6 years, evolving from Android Developer to Engineering Manager, before joining Qonto. After 2 years as a Lead Android, he became our second Head of Mobile.

What do they bring to the team?

Together with the Mobile leads, Guillaume & Sylvain continuously improves the teamโ€™s operating system to reduce waste, reach top quality in our product and grow team members towards proficiency.


  • Experience: You already have experience as a mobile engineer with a background in the Android development lifecycle.
  • Mastery: You have development experience in Android and a good understanding of the Android SDK.
  • Problem solver: You are a pragmatic and solution-oriented engineer interested in delivering value.
  • Make an impact: You want to build a product that is used by thousands of users, in a fast-growing environment.
  • Best practices: You work in an organized manner with high test coverage and other best practices.
  • Curiosity: You are a curious and open-minded developer.
  • Team player: You have good communication skills, you know how to work within a team and you can easily work with non-technical colleagues.
  • Languages: You are fluent in English.

Our Hiring Process

  • Interviews with your Talent Acquisition Manager and future managers
  • A remote exercise to demonstrate your skills and give you a taste of what working at Qonto could be like

We will send you an interview guide so you can best prepare yourself.

On average our process lasts 20 working days and offers usually follow within 48 hours ๐Ÿคž


  • Tailor-made remote policy
  • Lunch Card
  • Dynamic career tracks
  • Competitive salary package
  • Employee well-being initiatives
  • And so much more to help you succeed
Android Engineer (Kotlin)at Qonto