Senior Android Developer
- Verfügbarkeit einsehen
- 0 Referenzen
- auf Anfrage
- 13587 Berlin
- Europa
- ta | en
- 08.10.2026
- Contract ready
Kurzvorstellung
•Senior Android Developer with 8+ years of experience building production-grade Android applications in Kotlin.
Most recently at ubiMaster GmbH (Berlin) — owned the full Android app for a 1:1 EdTech tutoring platform.
Geschäftsdaten
Qualifikationen
Projekt‐ & Berufserfahrung
3/2026 – offen
Tätigkeitsbeschreibung
Engaged as a freelance Android developer to modernize and extend the Blacksheep Value OTT app—an independent Tamil-language streaming platform.
• Rebuilding app architecture using Kotlin, Jetpack Compose, MVVM, Koin, Coroutines, and Flow—replacing legacy implementation with a scalable, maintainable codebase
• Implemented OTP-based phone number authentication—login and registration flows built from scratch
• Integrated MX Player SDK for live and on-demand video streaming
• Set up Firebase integration and CI/CD pipeline; write unit tests across core features
• Working in a 2-person Android team; new version in active development ahead of scheduled release
Streaming
12/2022 – 11/2025
Tätigkeitsbeschreibung
Built and maintained a 1:1 live tutoring platform
for two product flavors (ubiMaster + FinanzGenie).
Key contributions:
→ Implemented live video/audio sessions using
Agora SDK — core revenue feature
→ Built real-time chat using WebSocket with
structured coroutine lifecycle handling
→ Designed and implemented Clean Architecture
across 32+ ViewModels with Jetpack Compose UI
→ Set up CI/CD pipeline with Fastlane +
Firebase App Distribution + GitHub Actions
→ Reduced crash rate monitored via
Firebase Crashlytics
→ Multi-flavor build setup for two
separate product lines
Tech: Kotlin, Jetpack Compose, MVVM, Hilt,
Room, Retrofit, Agora SDK, WebSocket,
Fastlane, Firebase
Computer Engineering
2/2021 – 11/2022
Tätigkeitsbeschreibung
built a live TV shopping Android app with
real-time video streaming.
Key contributions:
→ Live TV playback with multi-resolution
support using ExoPlayer
→ Backend API integrations and regular
Play Store releases
→ Reusable Compose component library
reducing feature delivery time
Tech: Kotlin, MVVM, ExoPlayer, Retrofit,
Firebase
Computer Engineering
7/2019 – 12/2020
Tätigkeitsbeschreibung
Delivered multiple client Android projects.
Key contributions:
→ Backend API integration with Kotlin + MVVM
→ Firebase Analytics for post-launch monitoring
→ Reusable abstract modules reducing
implementation overhead
Tech: Kotlin, MVVM, Retrofit, Firebase
Computer Engineering
5/2017 – 4/2019
Tätigkeitsbeschreibung
Built custom video player with live streaming.
Key contributions:
→ ExoPlayer-based player with Camera2 API
→ Video recording + AWS S3 upload/playback
→ Firebase Crashlytics integration
Tech: Kotlin, Java, ExoPlayer, Camera2, AWS S3
Computer Engineering
5/2016 – 12/2016
Tätigkeitsbeschreibung
Built fingerprint registration and
enrollment application.
Key contributions:
→ Hardware Fingerprint SDK integration
→ Report generation from ticket data
→ Printing SDK integration
Tech: Java, Android SDK, Hardware SDKs
Computer Engineering
Ausbildung
SRIT
Coimbatore, TN , India
Über mich
building production-grade Android applications for
German companies in the EdTech and e-commerce sectors.
I specialize in:
→ Kotlin & Jetpack Compose (modern UI)
→ Clean Architecture (MVVM/MVI)
→ Real-time features (WebSockets, live video)
→ Offline-first apps (Room + Retrofit)
→ CI/CD pipelines (Fastlane + Firebase)
I have delivered end-to-end Android projects—
from architecture design through the Play Store
deployment—including apps with live video
calls (Agora SDK), real-time chat (WebSocket),
and multi-flavor product setups.
I work independently, communicate clearly,
and deliver clean, tested, well-documented code.
Available immediately for remote and on-site
projects across Germany.
Languages: English (fluent), German (basic),
Weitere Kenntnisse
Clean Architecture, MVVM, MVI, Repository Pattern,
Dependency Injection (Hilt, Koin), SOLID Principles
Real-time & Media:
WebSocket, Agora SDK (live video/audio),
ExoPlayer (video streaming), Camera2 API
Backend Integration:
Retrofit, REST APIs, GraphQL basics,
Firebase (Crashlytics, Analytics, FCM,
Remote Config), AWS S3
Local Storage:
Room Database, DataStore, SharedPreferences
Testing:
JUnit5, Mockito, Espresso, Turbine (flow testing),
UI Testing with Compose
CI/CD & DevOps:
Fastlane, GitHub Actions, Firebase App Distribution,
Play Store deployment, ProGuard
AI & Productivity:
AI-assisted development (Claude, GitHub Copilot),
Prompt engineering for code generation and review
Version Control:
Git, GitHub, GitLab, branching strategies
Methodologies:
Agile, Scrum, Kanban, and code review practices
Additional:
Kotlin Multiplatform (KMP) basics,
Multi-flavor app builds,
Play Store optimization (ASO basics)
Persönliche Daten
- Tamil (Muttersprache)
- Englisch (Fließend)
- Europäische Union
- Schweiz
Kontaktdaten
Nur registrierte PREMIUM-Mitglieder von freelance.de können Kontaktdaten einsehen.
Jetzt Mitglied werden
