Senior Product Engineer - Android/Kotlin

Join us as an Android Engineer and help us build the mobile experience that 600,000+ European businesses rely on every day to manage their finances. You'll own product-critical features end-to-end — from technical design to rollout — in a large, modular Kotlin codebase where craft and velocity both matter. You'll work closely with Product, Design, Backend, and Frontend.

Responsibilities

Own features end-to-end - You'll take ownership from discovery and technical design through implementation, rollout, and iteration on features that help businesses pay, get paid, and stay in control; Drive technical decisions in your squad - You'll shape solutions with Product, Design, and Backend by clarifying tradeoffs across UX, performance, security, and time-to-market; Raise app reliability and maintainability - You'll improve architecture, performance, and test strategy to scale the app without compromising stability; Tackle complex mobile challenges - You'll contribute to real-time synchronization, resilience patterns, and smooth navigation in a modular codebase with ~1,000 modules; Grow the team's Android craft - You'll lead code reviews and technical discussions, share patterns, and mentor peers to raise the bar on quality and delivery.

Requirements

Strong Android native experience - You've shipped and maintained production features with Kotlin and are comfortable owning technical decisions end-to-end; Quality-driven mindset - You care about testing (unit, UI, snapshot), clean code, and pragmatic standards that keep teams moving fast; Problem-solving approach - You thrive in ambiguity and turn complex constraints into simple, robust solutions; AI-native workflow - You use AI coding tools daily to amplify your output — not just experiment with them; Collaborative by nature - You're fluent in English and contribute through code reviews, knowledge sharing, and mentorship across technical and non-technical stakeholders.

Benefits

An AI-first engineering environment; Unlimited access to Claude Code, Cursor, and Copilot; Engineering standards that scale; Strong code review culture; Continuous refactoring; Focus on correctness in a regulated context; A technically demanding domain