Senior Kotlin Developer

Summary

We are looking for a results-driven Senior Kotlin Developer with deep expertise in:

• modern Android development
• deep knowledge in BLE, NFC and Beacons
• UX/UI implementation
• and CI/CD

The ideal candidate is ready to lead and deliver the next generation app with a strong focus on:

• quality
• usability
• and maintainability.

Personal Skills

• Ability to speak, understand and write English fluently
• Empathic communicator
• Able to manage complex situations, like taking over applications/developments from developers to be phased out
• Hitting the right abstraction layer for technical documentation.

Technical Skills

• Master degree in computer science, comparable degree or more that 10 years of experience in development
• More than 3 years of experience in Android development using Kotlin
• Proven experience delivering at least one app with 25,000+ installs
• Experience integrating Android apps with SAP or comparable backend systems
• Strong knowledge of Git, GitHub, and GitFlow
• Experience with Agile methodologies (Scrum, Kanban)
• Solid understanding of databases and SQL
• Languages & Frameworks: Kotlin, Java, Android SDK, Jetpack (Compose, ViewModel, LiveData, Navigation), Coroutines, Flow
• Tools & Platforms: Android Studio, Gradle, Jira, Confluence
• IEC 62443 - security/secure development lifecycle
• Exposure to/experience with physical access and mobile credential solutions
• Experienced in performance, reliability and battery optimization.

Technical

• UX/UI Implementation: Advanced skills in translating Figma/Sketch designs into pixel-perfect Android interfaces using Jetpack Compose and Material Design, with strong focus on accessibility (TalkBack, scalable fonts, contrast)
• Architecture & State Management: MVVM, Clean Architecture, Modularization, Dependency Injection (Hilt/Dagger)
• Testing: Unit Testing (JUnit), UI Testing (Espresso), Test Automation, Regression Testing
• CI/CD: Jenkins, GitHub Actions, Gradle pipelines, Play Store automation (internal, beta, production tracks)
• Monitoring & Analytics: Firebase, Crashlytics, Sentry
• Collaboration: Agile/Scrum, Jira, Confluence, Code Reviews (Pull Requests)
• Documentation: Markdown, API documentation, Confluence
• Experience with Bluetooth communication and Android BLE stack (interfacing with hardware, apps working offline)
• Azure cloud environments and REST API

Technical Skills - Optional

• App Distribution: Google Play Store, Enterprise distribution (e.g. MDM / AirWatch)
• Secure handling of AirWatch payloads
• AirWatch administration know-how
• Knowledge of enterprise security and configuration management on Android
• Experience with inter-app communication (Intents, AIDL, shared storage)
• Experience with multi-window / large screen / tablet optimization
• Experience with app analytics and rollout platforms (e.g., Firebase Remote Config)
• Knowledge of ABAP development or SAP backend integration
• Experience integrating with SharePoint or enterprise content systems
• Full-stack development experience
• Familiarity with cross-platform technologies (e.g., Kotlin Multiplatform)

Company Preconditions

Mandatory precondition:

• At least 3 developers meeting the mandatory skills for developers
• None of the major Schindler competitors is shareholder
• Ensure the compliance to Schindler development standards
• Ensure the compliance to Schindler IT security standards

Optional preconditions:

• Global footprint
• Extended workbench nearshore and/or offshore
• Not working for one of the major Schindler competitors