Android Developer - AI Finance Agent

About the role

Doit builds tools that help people spend, save, invest, exchange and travel, with a focus on making finance smarter, accessible and safe through AI. It is looking for an Android developer to build the native Android experience for its AI Finance Agent. The role suits someone who cares about clean user flows, fast performance, product quality and reliable mobile features used by real customers.

Key responsibilities

• 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.

Required profile

• 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.
• Remote work, based in Portugal; English is the main working language and strong English communication is required.

Required skills

• Kotlin
• Jetpack Compose
• Android SDK
• Coroutines and Flow
• REST API integration
• SQL / NoSQL
• TensorFlow Lite (on-device inference)

The interview process is fast: online assessment or practical task, then a role-specific interview and a final round with the CEO; offers are aimed at being made within a week of starting interviews. Applicants should already be based in Portugal.