🔍 Android Native Developer (German-speaking)Location: 100% remote from within the EUContract type: B2B💡 About the companyKyotu Technology is a boutique software house based in Wrocław and Warsaw, Poland. We partner with clients from Germany, Switzerland, Western Europe, the US, and the Middle East, developing complex, high-impact systems — including those used in finance, identity verification, and cybersecurity.🚀 About the projectWe’re building secure digital identity and authorization systems for a German public sector project. The goal is to create modern, secure, and user-friendly Android applications that handle sensitive user data and implement advanced authentication protocols.This is a long-term engagement (2–3 years, with likely extension) in a regulated environment with a strong focus on privacy, cryptography, and compliance.🧠 Your responsibilities Design and develop native Android applications using Kotlin or Java Implement authentication and authorization functionality Develop secure storage and communication modules (e.g. BLE, NFC) Integrate biometric authentication and secure hardware features Collaborate closely with UX/UI teams to deliver accessible, intuitive interfaces Implement testing processes (unit, UI, integration testing) Participate in code reviews and apply security best practices Contribute to continuous improvement of the development process 🧩 Requirements Minimum 3 years of experience in native Android development (Kotlin or Java) Proficiency with Android Studio, Gradle, and ADB At least 1 year of experience with Material Design and Jetpack Compose

Solid knowledge of native Android APIs, including:

TEE/StrongBox (secure key storage) BLE (Bluetooth Low Energy) NFC communication OMAPI (Open Mobile API) BiometricPrompt

Experience with testing tools (Espresso, Appium) Understanding of cryptography and secure communication standards Familiarity with Git-based development workflows Proficiency in both German and English (min. B2 level) ✨ Nice to have Experience with UI design tools (e.g. Figma) Familiarity with identity protocols (OAuth2, OpenID Connect, SAML) Knowledge of FIDO standards and verifiable credentials Experience with JWT and digital identity frameworks Understanding of eIDAS regulations and compliance requirements Previous experience publishing apps to Google Play 📦 What we offer 100% remote work within the EU (occasional visits to Germany) Long-term public sector project (2–3 years, strong potential for extension) Collaborative international team: backend, UX/UI, QA, DevSecOps Focus on high-impact, security-driven development 🗂️ NoteWe are currently building a talent pool for upcoming projects.If you’re interested in joining Kyotu as an Android Native Developer, send us your CV — we’ll contact you when a matching project becomes available.