Software Engineer II - VoIP | India at five9

This role is designed for a mid-to-senior software developer with a specialized background in telecommunications and real-time communication protocols. You are the ideal candidate if you have at least five years of professional experience and a deep technical understanding of WebRTC and SIP-based systems. While JavaScript is the primary language, a working knowledge of Java or C++ is essential for navigating the complexities of a global voice platform. As part of the Voice Client Team, you will impact the core functionality of a leading cloud contact center platform. This is a high-ownership position that balances new feature development for macOS, Windows, and web applications with critical system troubleshooting. You will also have the chance to mentor junior developers, making this a great step for someone looking to move into technical leadership while staying hands-on with distributed systems. **You might be a good fit if you...** * Have 5+ years of experience and a strong grasp of WebRTC, SIP signaling, and RTP. * Are proficient in JavaScript and have at least 2 years of experience in Java or C++. * Enjoy deep-dive debugging and performance tuning for high-availability voice systems. * Are comfortable with a full-time, on-site commitment in Bengaluru and participating in an on-call support rotation.