Android POS Engineer - Middle

- Profile and debug to identify and resolve performance bottlenecks on constrained devices.
- Integrate payment SDKs, EMV/contactless/card systems, transit ticketing, SAM modules, secure elements, and encryption/decryption flows.
- Handle concurrency, background tasks, threading, and lifecycle- aware development.
- Ensure high code quality using MVVM architecture, modular design, and clean architecture principles.
- Collaborate with Product, QA, Design, and Operations to deliver full end- to- end solutions.
- Develop offline- first architecture, local caching, syncing strategies, and robust error handling.
- Architect, build, and maintain Android POS/payment apps (Java/Kotlin).

- Strong communication skills for seamless coordination across multi- disciplinary teams.
- Proven ability in performance optimization and debugging on resource- constrained devices.
- Deep familiarity with Android Architecture Components (ViewModel, LiveData, Room), MVVM, and lifecycle management.
- Passion for clean, scalable, and maintainable code that sustains long- term project growth.
- Practical experience in EMV payments (both contact and contactless), transit ticketing/AFC systems, integrating SAM modules or secure elements, and building solutions in public transportation or embedded payment systems.Experience integrating SAM modules or secure elements.
- Strong foundation in concurrency, background processing, and thread- safe programming.Expertise in performance optimization and debugging on resource- limited devices.
- Solution- driven mindset, excelling in fast- paced, agile environments.
- Solid experience architecting offline- first apps, implementing local caching and synchronization.
- 2+ years of Android development experience using Java & Kotlin, with hands- on work on Android POS terminals or payment SDKs.Demonstrated experience with Android POS terminals or payment SDKs.

- Monthly happy hour events, annual team- building activities, and more.
- Working hours: 9:00 AM – 6:00 PM, Monday to Friday.
- Full benefits in accordance with state regulations.
- Health insurance coverage after 6 months of official employment.

Cập nhật gần nhất lúc: 2025-07-20 13:55:02