What are the responsibilities and job description for the Senior Android Developer Washington, - DC - District of Columbia position at Sierra Business Solution LLC?
Job Title: Android Lead Developer
Location: Washington, DC VA Maryland Area So That The Candidate Can Come To Office When Required. Hybrid Position.
Type: Contract
Skills:
Android
Kotlin
Google Wallet
NFC
Maps
Job Description:
Must Have TechnicalFunctional Skills:
- Strong proficiency in Kotlin, Jetpack components, Google Wallet, Google Pay, Maps, UWB, NFC.
- Experience with secure networking, offline patterns, and testing.
Roles & Responsibilities
payment, location-based, and proximity interaction features using UWB and NFC technologies.
Key Responsibilities:
Wallet & Payments:
- Develop mapping features using Google Maps SDK and Location Services API.
- Implement geofencing, background location tracking, and fused location optimization.
- Build custom map layers, clustering, markers, and real-time route visualizations.
- Implement secure session establishment, peer discovery, and precise distanceangle measurement.
- Develop NFC features using HCE and ReaderWriter Mode.
- Implement NDEF readingwriting, tag interactions, and secure element usage.
- Write modular Kotlin code using MVVM or Clean Architecture.
- Build reusable components and secure, efficient features.
- Apply accessibility, performance optimization, and robust error handling.
- BLE experience.
- Knowledge of tokenization, PCI compliance, and secure payment flow design.
- Experience with modular apps, analytics, crash reporting, and CICD.
Managerial Skills:
Communication and customer interaction
Salary : $85 - $90