Sr. Software Engineer - Android (Kotlin)

We are looking for a Senior Android Developer with expertise in Kotlin to join our team. The ideal candidate should have a strong background in designing, developing, and maintaining high-performance Android applications. You will be responsible for leading development efforts, mentoring junior developers, and ensuring best practices in mobile app development.

Key Responsibilities:

• Design, develop, and maintain Payment applications on Android based POS devices using Kotlin.
• 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.
• Work with Jetpack components, Coroutines, Flow, and Room database.
• 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.

Required Skills & Qualifications:

• 6+ years of experience in Android development.
• Strong proficiency in Kotlin and Android SDK.
• Strong understanding of MVVM/MVP architecture and design patterns.
• Hands-on experience with Room database, Retrofit, and RESTful APIs.
• Experience with dependency injection frameworks like Dagger/Hilt.
• 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.
• Excellent problem-solving, analytical, and communication skills.

Good to Have:

• 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.