Jobs in Lisbon, Portugal

About the role

As a part of our team, you'll help us shape a platform that works for One — a business owner, an artist, a freelancer. In this role, you will take direct technical ownership of our native Android application, building fluid, high-performance features that make managing fiat, crypto, and investments feel effortless and intuitive. We provide the space for you to operate with deep task autonomy, treating your craftsmanship with respect and eliminating micromanagement so you can ship secure, pixel-perfect mobile experiences end-to-end.

What you'll bring

• Commercial Android Depth: You have at least 3 years of commercial experience building native Android applications, strong proficiency in Kotlin, and hands-on experience with Kotlin Multiplatform (KMP).
• Modern Architecture & Jetpack: You feel completely at home with modern architectural patterns (MVVM/MVI, Clean Architecture) and essential Jetpack libraries (ViewModel, Flow, Navigation).
• UI & Reactive Mastery: You bring strong practical experience with Jetpack Compose (or a robust background in XML Views) alongside expert use of Kotlin Coroutines and Flow for reactive, concurrent operations.
• Mobile Security Focus: You have practical experience implementing security best practices for financial or sensitive data applications, including Keystore management, code obfuscation, and secure data storage.
• Testing & Quality Craft: You demonstrate proven experience writing effective Unit Tests (JUnit, Mockito/MockK), possess strong debugging skills, and care deeply about application stability and performance.
• Autonomous Execution & Ownership: You manage your commitments comfortably, taking end-to-end accountability for features from initial design to production deployment without needing micromanagement.
• Transparent & Respectful Collaboration: You communicate openly in English, value peer feedback, share technical context willingly across squads, and prioritize an absolute zero-tolerance policy for rudeness.
• Fintech & Crypto Domain Exposure: Prior experience building native mobile wallets, trading apps, or banking applications handling multi-currency accounts or digital assets.
• CI/CD & Mobile Release Pipelines: Familiarity with automated mobile build tools, Fastlane, and continuous integration pipelines (GitHub Actions, GitLab CI).
• Startup Agility: Experience working inside lean startup environments where you know how to keep your client-side architecture flexible as product targets evolve.

Benefits