Senior Staff Engineer | AI Voice Engineering

Five9(27 days ago)

HybridFull TimeSenior$164,035 - $219,535 (estimated)Engineering

About this role

Senior Staff Engineer, AI Voice Engineering responsible for the architecture and development of Five9’s AI agent voice orchestration platform, handling real-time streaming voice, ASR/TTS integration, and AI inference. The role is a senior individual contributor position that sets technical direction, mentors engineers, and works cross-functionally to deliver end-to-end solutions. The engineer owns the full lifecycle including deployment and operations, ensuring the platform is low-latency, scalable, reliable, and observable.

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Required Skills

Modern C++
RTP/SIP
Audio Codecs
SIP/SDP
ASR
TTS
AI APIs
Cloud Platforms
CI/CD
Containers

+9 more

Qualifications

Bachelor's Degree in Computer Science or Related Field

About Five9

five9.com

Five9 is a cloud contact‑center software company that delivers AI‑powered SaaS to help organizations run omnichannel customer service and sales operations. Its platform includes conversational AI and virtual agents, predictive dialing, intelligent routing, workforce management, CRM integrations, and analytics to boost agent productivity and customer experience. Five9 targets enterprises and contact centers seeking a reliable, scalable hosted alternative to on‑prem systems and offers demos and global support.