Android Engineer (SuperApp)

What you work on today shapes where you’ll be tomorrow.

Looking for your next challenge as a Android Engineer? We may have the right opportunity for you.

At B3, we start with people and their experience. We match projects to your skills and professional growth path. Our consultants work across a wide range of industries and technologies, delivering IT projects both in Poland and internationally. This allows you to build your career in a deliberate way - not by chance.

We are part of an international organization listed on Nasdaq Stockholm, operating in 11 countries. In Poland, we operate with full autonomy. We choose our technologies, processes, and ways of working while maintaining the highest professional standards.

Join us today.

What we offer

• Work in a Scandinavian culture built on logic, trust, and open dialogue.

• Health and sports benefits tailored to your needs.

• Speed Coaching – short sessions designed to provide new perspectives and solutions.

• Sports training, an internal team, and opportunities to take part in competitions.

Role areas:

• Integrating external partner services into the mobile app - natively embedding external partner ecosystems into a very high-traffic mobile application, following a super app concept with a single login. Working in a startup-like way, using internal AI tooling for agentic development

• Customer experience and native dashboards - designing and implementing fluid customer flows (CX) and custom native dashboards

• Security, identity and deep linking - implementing and maintaining secure identity verification flows, developing deep-linking mechanisms and secure WebView integrations connecting the app with partner systems

What you need to join us:

Must have:

• Strong knowledge of the Android platform and Kotlin and/or Java, including the ability to build smooth, high-performance user interfaces

• Extensive experience integrating remote B2B REST APIs in mobile applications

• Hands-on experience with secure session management, secure WebViews, token handovers and OAuth implementation on mobile

• Problem-solver mindset - willingness to work beyond a single specialization (front-end, backend and mobile integrations) and openness to working with AI and agentic development tools

• English at B2+ level or higher and Polish

• Right to work in Poland (citizenship, residence card, visa, etc.)

Nice to have:

• Experience with deep-linking mechanisms in Android applications

• Familiarity with mobile accessibility guidelines (a11y) on Android

• Experience with e-commerce apps, mobile subscription flows or native payment SDKs

• Experience integrating new services with a complex ecosystem of existing systems (e.g. payments, login, search)

• Availability for occasional workshops in Warsaw or Poznań