Senior Staff Engineer | AI Voice Engineering

Bengaluru - India

Monthly Salary: Not Disclosed

Posted on: 23 hours ago

Vacancies: 1 Vacancy

Job Summary

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software bringing the power of cloud innovation to customers worldwide.

Living our values everyday results in our team-first culture and enables us to innovate grow and thrive while enjoying the journey together. We celebrate diversity and foster an inclusive environment empowering our employees to be their authentic selves.

About the Role

We are looking for a Senior Staff Engineer AI Voice Engineering who will be responsible for the software architecture and software development of Five9s AI Agent voice orchestration software platform. This platform handles real-time streaming voice including RTP/SIP integration with speech recognition engines speech synthesis engines end of turn model execution and interruption model inference.

As a senior individual contributor youll not only be one of the most senior developers on the team youll also mentor junior engineers and set technology direction for platform. Youll work with other teams collaborating cross-functionally to make sure complete solutions are delivered. Youll make some of the most important technology decisions and be in the drivers seat for the platform evolution. Youll also get your hands dirty working direcdtly on the software diagnosing issues and helping uplevel the team to reach the highest levels of performance. Your responsibility extends through deployment and operations (we practice devops) and you will ensure the software platform is low latency scalable reliable observable and maintainable by Five9.

What Youll Do

Lead architecture and development of real-time AI voice systems
Design and optimize low-latency voice pipelines using RTP/SIP
Integrate ASR TTS and AI inference services
Mentor engineers and lead technical best practices
Collaborate with Product AI Infrastructure and SRE teams
Own the full lifecycle: design development deployment and operations
Ensure scalability reliability and observability

Required Qualifications

10 years of overall software development experience
5 years building real-time voice systems in C
1 year experience with real-time GenAI voice platforms
Bachelors or higher degree in Computer Science or related field

Technical Skills

Modern C (C17) RTP/SIP audio codecs SIP/SDP ASR/TTS integration AI APIs cloud platforms (AWS/Azure/GCP) CI/CD containers SRE principles

Leadership & Impact

Lead architecture for mission-critical systems
Mentor engineers and influence platform-wide decisions
Balance latency quality cost and reliability trade-offs

Five9 embraces diversity and is committed to building a team that represents a variety of backgrounds perspectives and skills. The more inclusive we are the better we are. Five9 is an equal opportunity employer.

View our privacy policy including our privacy notice to California residents here: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.

Required Experience:

Staff IC

Join us in bringing joy to customer experience. Five9 is a leading provider of cloud contact center software bringing the power of cloud innovation to customers worldwide. Living our values everyday results in our team-first culture and enables us to innovate grow and thrive while enjoying the journ...