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Senior Android Developer
Verifonekolkata, west bengal, in1 day ago
Job description5 - 8 years of experience in Android development. Strong proficiency in Java with a solid understanding of Kotlin concepts Strong knowledge of architectural patterns such as MVVM, MVP, or Clean Architecture Experience with modularization, dependency injection (e.g., Dagger or Hilt), and reactive programming (e.g., RxJava, Coroutines / Flows). Proficiency in Git, CI / CD pipelines, and Agile methodologies. Strong knowledge of networking concepts, including TCP / IP, HTTP, HTTPS, Web Sockets, and SSL / TLS. Experience integrating secure authentication mechanisms, such as OAuth, JWT, and token-based authentication. Strong debugging and performance optimization skills. Knowledge of unit testing and automation testing frameworks (JUnit, Espresso, Mockito). Excellent problem-solving, analytical, and communication skills. Knowledge of software quality metrics and mechanisms to implement and monitor them. Knowledge of patterns for software architecture and design. Strong knowledge of Object-Oriented concepts and software components. Experience working with Payment applications on POS devices (Ingenico, Verifone, PAX etc). Experience in EMV, NFC, and ISO 8583 protocols for secure transactions. Experience with cryptographic security concepts like DUKPT, AES, RSA, and HMAC. Familiarity with security best practices in mobile app development. Knowledge of Jetpack Compose for modern UI development. Knowledge of C++ development will be a bonus.
About the Role :
We are looking for an experienced Senior Android Developer to design, develop, and maintain high-performance Point-of-Sale (POS) terminal solutions . The ideal candidate will have expertise in Java , a strong grasp of Kotlin concepts , and a background in developing secure and scalable payment applications . This role involves leading development efforts , mentoring junior developers, and ensuring best practices in mobile application architecture.
Responsibilities :
- Design, develop, test, automate and maintain Payment applications on Android based POS devices using Java.
- Implement Kotlin concepts to support modern Android development practices and future system upgrades.
- Apply concepts of domain engineering to maximize reusability among a family of Android POS devices.
- Collaborate with cross-functional teams to define, design, and deliver new applications / features.
- Write clean, scalable, and efficient code while following best coding practices.
- Optimize application performance, memory usage, and battery efficiency.
- Ensure high-quality UI / UX implementation in collaboration with designers.
- Debug and resolve software defects, ensuring application stability.
- Implement and maintain MVVM / MVP architecture and dependency injection frameworks like Dagger / Hilt.
- Integrate RESTful APIs, third-party services, and networking components into mobile applications.
- Stay updated with the latest Android trends, frameworks, and best practices.
- Mentor and guide junior developers in coding, design, and development methodologies.
- Participate in code reviews, sprint planning, and Agile development processes.
Qualifications and Required Skills :
Preferred Skills :
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Android Developer • kolkata, west bengal, in
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