[Hiring] Mobile Engineer - AI Finance Agent @Bjak

Role Description

We are looking for mobile developers to build BJAK's AI Neobank App across Android and iOS. This role is for strong mobile builders who can ship clean, reliable and intuitive mobile experiences, whether their main strength is Android, iOS or both.

• Build and ship Android features using Kotlin.
• Create clean mobile flows for insurance, payments, claims, renewals and financial services.
• Work with product and design to simplify complex user journeys.
• Integrate backend APIs and ensure mobile flows are stable, secure and reliable.
• Improve app performance, crash rate, loading states, responsiveness and memory usage.
• Use analytics, user behaviour and production issues to improve the product.
• Build AI-assisted mobile experiences only where they genuinely improve the user journey.

Qualifications

• 3+ years of Android development experience using Kotlin.
• Strong Android fundamentals and experience shipping production apps.
• Good knowledge of Jetpack, Coroutines, Flow and modern Android architecture.
• Strong sense of mobile UX, usability, edge cases and user flows.
• Experience integrating REST APIs and debugging production issues.
• Fast execution, high ownership and strong attention to product quality.
• App links, GitHub, screenshots or examples of shipped work are a strong advantage.

Requirements

• Kotlin
• Jetpack Compose
• Android SDK
• Coroutines & Flow
• SQL / NoSQL
• TensorFlow Lite (on-device inference)

Benefits

• Thinks in user journeys, not just screens.
• Cares about making complex financial products feel simple.
• Moves fast without creating messy code.
• Notices UX, performance and reliability issues before users complain.
• Honest about what they personally built, what was team-owned and what impact they can or cannot claim.

This Role Is Not For

• Engineers who only want fully defined tickets.
• Developers who build screens without caring about user experience.
• People who ignore crashes, edge cases, loading states or performance.
• Engineers who move slowly in a startup environment.
• People who exaggerate impact without explaining their actual contribution.

Location

This role is remote, but candidates must be based in Austria. We are hiring specifically for this market, so applicants should already be based in Austria.

Language

English is our main working language across global teams. Strong English communication is required.

Interview Process

Our process is designed to move fast:

• Online assessment or practical task
• Role-specific interview
• CEO / final round

For strong candidates, we aim to complete the process and make an offer within 1 week from the start of the interview process. Candidates who complete assessments quickly will be prioritized.