Senior Staff Engineer | AI Voice Engineering
Location: India, Bengaluru
Department: Voice & Infrastructure - Product Engineering
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 Five9’s 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, you’ll not only be one of the most senior developers on the team, you’ll also mentor junior engineers and set technology direction for platform. You’ll work with other teams, collaborating cross-functionally to make sure complete solutions are delivered. You’ll make some of the most important technology decisions and be in the driver’s seat for the platform evolution. You’ll 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 You’ll 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
- Bachelor’s or higher degree in Computer Science or related field
Technical Skills
Modern C++ (C++17+), 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: https://www.five9.com/pt-pt/legal.
Note: Five9 will never request that an applicant send money as a prerequisite for commencing employment with Five9.
There are more than 50,000 engineering jobs:
Subscribe to membership and unlock all jobs
Engineering Jobs
60,000+ jobs from 4,500+ well-funded companies
Updated Daily
New jobs are added every day as companies post them
Refined Search
Use filters like skill, location, etc to narrow results
Become a member
🥳🥳🥳 452 happy customers and counting...
Overall, over 80% of customers chose to renew their subscriptions after the initial sign-up.
To try it out
For active job seekers
For those who are passive looking
Cancel anytime
Frequently Asked Questions
- We prioritize job seekers as our customers, unlike bigger job sites, by charging a small fee to provide them with curated access to the best companies and up-to-date jobs. This focus allows us to deliver a more personalized and effective job search experience.
- We've got over 200,000 jobs from 15,000+ vetted companies. No fake or sleazy jobs here!
- We aggregate jobs from 15,000+ companies' career pages, so you can be sure that you're getting the most up-to-date and relevant jobs.
- We're the only job board *for* software engineers, *by* software engineers… in case you needed a reminder! We add thousands of new jobs daily and offer powerful search filters just for you. 🛠️
- Every single hour! We add 2,000-3,000 new jobs daily, so you'll always have fresh opportunities. 🚀
- Typically, job searches take 3-6 months. EchoJobs helps you spend more time applying and less time hunting. 🎯
- Check daily! We're always updating with new jobs. Set up job alerts for even quicker access. 📅
What Fellow Engineers Say