Shared jobSoftware Engineer II – C++, SIP
India · Mid Level
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HIGH
Five9 is actively reviewing profiles and moving candidates through the pipeline right now.
First 72 hours
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Reposted role
This role was posted earlier, closed, and has now reopened - the company is accepting candidates again.
First posted Mar 31, 2026
Skills required
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Job description
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.
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 every day 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.
Our Global Voice Team is looking for a committed, experienced Software Engineer II who is passionate about creating high-performing, scalable, and resilient mission-critical services that form the foundation of Five9’s next-generation contact center platform. You will have the opportunity to combine your existing expertise with new learnings, crafting bespoke solutions that serve our customers and partners.
Responsibilities:
- Participate in an Agile Scrum team that practices DevOps.
- Write clean, well-documented code and corresponding 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.
Required Skills:
- 3+ years of professional experience in software development, including experience in C and/or C++.
- Hands-on experience developing software for real-time communications signaling and media protocols (e.g., SIP, RTP).
- Ability to methodically troubleshoot complex systems.
- Excellent communication and organizational skills, with a strong sense of ownership.
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
- Site Reliability Engineering (SRE) principles
- AI/ML and Large Language Models (LLMs)
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.
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