Senior Software Engineer

Senior Software Engineer A PLY NOW VIA LINKEDIN Experience: 7+ years | Job Type: Full-Time | Location: Chennai, India We are looking for an experienced Senior Software Engineer with 7+ years of software development experience, strong expertise in POS and payment systems, and hands-on experience developing secure, reliable, and scalable payment applications. The ideal candidate will have a strong combination of C/C++ payment/POS development and Java/Kotlin-based Android application development, with a solid understanding of ISO 8583, Terminal Management Systems (TMS), payment transaction processing, the Android SDK, and modern Android architecture. What We Are Looking For: The successful candidate should be comfortable taking ownership of complex technical problems, driving solutions independently, and collaborating with cross-functional teams to deliver secure, reliable, and high-performance POS payment solutions. Key Responsibilities: - Design, develop, and maintain POS and payment applications for Android-based payment terminals. - Develop and maintain payment-related components using Android, C, and C++. - Implement and integrate ISO 8583 message formats and transaction flows. - Work with Terminal Management Systems (TMS) for terminal configuration, application deployment, updates, and management. - Develop Android applications using Java and Kotlin. - Design robust and maintainable Android applications using MVVM and Repository architecture. - Implement asynchronous operations using Kotlin Coroutines and WorkManager. - Develop local data persistence using SQLite. - Integrate backend services using Retrofit, Volley, and JSON. - Work with Android components including ViewModel, LiveData, Navigation Component, and Jetpack Compose. - Integrate payment SDKs, device SDKs, and hardware-related APIs as required. - Analyse and resolve complex application, transaction, integration, and device-level issues. Required Technical Skills: POS & Payment Technologies: Strong hands-on experience in POS / payment systems; Good understanding of payment transaction processing and POS transaction flows; Strong knowledge of ISO 8583 messaging and transaction processing; Android Development: Java/Kotlin; Android SDK; MVVM architecture (Kotlin Coroutines, WorkManager); Retrofit/Volley/JSON libraries; Firebase/Glide/Picasso integrations. Development Tools & Technologies: Android Studio, Visual Studio Code, Git, Postman. Referred Qualifications: Bachelor’s or Master’s degree in Computer Science, Software Engineering, Electronics, or a related field. Previous experience in payment, banking, fintech, retail, POS systems is highly desirable.