Kotlin Java Android Developer with German

1 dzień temu

Katowice, Polska Kyotu Technology Pełny etat

B2B | Remote (EU-based) | Full-time | Long-term project | Start: June 2025 We are looking for an experienced Android Native Developer to join our international team working on secure digital identity and authorization systems for a German public sector project. You will help develop modern, secure, and user-friendly Android applications that handle sensitive user data and implement advanced authentication protocols. This is a long-term engagement in a regulated environment with a strong focus on privacy, cryptography, and compliance. You'll work as part of a stable, cross-functional team including backend developers, UX/UI designers, QA, and DevSecOps engineers. Project overview Development of secure mobile applications for digital identity management Implementation of cryptographic protocols and secure communication features Collaboration with a multidisciplinary international team Long-term public sector project (2–3 years, with a strong likelihood of extension) Remote work from within the EU, with occasional on-site visits in Germany Planned start date: June 2025 Responsibilities Design and development of native Android applications using Kotlin or Java Implementation of authentication and authorization functionality Development of secure storage and communication modules (e.g. BLE, NFC) Integration of biometric authentication and secure hardware features Close collaboration with UX/UI teams to deliver accessible, intuitive interfaces Implementation of testing processes including unit, UI, and integration testing Participation in code reviews and application of security best practices Contribution to the continuous improvement of the development process Requirements Minimum 3 years of experience in native Android development using Kotlin or Java Proficiency in Android Studio, Gradle, and ADB At least 12 months of experience with Material Design and Jetpack Compose Solid knowledge of native Android APIs, including: TEE/StrongBox for secure key storage BLE (Bluetooth Low Energy) NFC communication OMAPI (Open Mobile API) BiometricPrompt Experience with testing tools such as Espresso and Appium Understanding of cryptographic techniques and secure communication standards Familiarity with Git-based development workflows Proficiency in both German and English (minimum B2 level) Nice to have Experience with UI design tools such as 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 the Google Play Store ️ Note: We're currently building a talent pool for upcoming projects. If you'd like to be considered for future opportunities at Kyotu, send us your CV — we'll reach out when a matching project becomes available.

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