Senior C++ Software Engineer - Global Voice

Our global voice team is looking for a committed, experienced Senior Software Engineer who is passionate about creating high performing, scalable, and resilient mission critical services that are the foundation of Five9’s next generation contact center platform. You will have the opportunity to combine what you already know with new learnings, crafting a bespoke solution that serves our customers and partners. Additionally, for candidates interested in leadership, this role offers an optional, supported pathway to transition into a future engineering management position.

• →Participate in an Agile scrum team which practices DevOps.
• →Write clean and well-documented code and tests.
• →Deliver your code as part of an overall solution running in the public cloud.
• →Develop and enhance our Media Server to support real-time integrations with Large Language Models (LLMs) and other AI services.
• →(Optional) For those pursuing the management track: Mentor team members, lead technical initiatives, and progressively take on team leadership responsibilities.

• 5+ years professional experience in software development, with some being written in C and/or C++.
• Hands-on experience writing software for real-time communications signaling and media protocols (SIP, RTP, etc.).
• Ability to methodically troubleshoot complex systems.
• Excellent communication and organization skills, and a sense of ownership.

• 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.

• For the optional management track: Prior experience with technical leadership, a strategic mindset, and a strong desire to grow into an engineering manager role.