Senior Android Engineer

London, England, United Kingdom


Peak’s mission is to help the world spend their time better using tools and techniques borrowed from education, neuroscience and gaming. We make products that add value to your world and help you enjoy life more. Founded in 2013, Peak has grown quickly, producing Peak – Brain Training, the number 1 brain training app on mobile, which has now been downloaded over 40 million times across the globe. Peak – Brain Training was chosen by both Apple and Google as one of the best apps available and is regularly featured by both as leading example of mobile technology. 2018 is an exciting year for the business which will see us build on our success as the market leading Brain Training solution and expand into new verticals.



- Experience building consumer-facing mobile or web software.

- 5+ years experience building Android applications.

- Experience building/contributing to/maintaining at least 2 apps already on the Play Store.

- Ability to build an Android application end-to-end.

- Expert knowledge of the Android SDK.

- Proficiency in Java, Kotlin is a plus.

- Good understanding of data storage on Android.

- Experience integrating communication between mobile client and server.

- Good software architecture experience.

- Strong OOP, good knowledge in design patterns and anti-patterns.

- Experience with unit testing, continuous integration & deployment.

- Experience building REST APIs is a plus.

- Knowledge of libGDX is a plus.

- Experience using the following libraries is a plus: Toothpick, Retrofit, OkHttp, Android support libraries, Android architecture components, Room, Google Play Services, Play Billing Library, ButterKnife, Dart, Lottie.

- Eligible to work in the UK.

Why you should work with us:

We are an ambitious company, so we aim high in everything we do. We believe we can have a real impact on the world. We recognise that to do this we need to be open to new ideas and to challenge one another every day to ensure real personal and professional growth. Ultimately, we care about each other and we know that we will succeed as a team (it’s why we make time play pool, board games and video games together). In our view, ambition, openness and teamwork are the surest way to achieve our amazing goals. 2018 is an exciting year for the business which will see us build on our success as the market leading brain training service and expand into new verticals.


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