or apply directly on Five9's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 14 days Five9's roles stay open a median of 45 days
- Reposted
- No
- Salary listed
- No 0% of Five9's roles list one
- Ghost-job risk at Five9
- high 81 stale, 4 reposted of 124 open
- Hiring momentum
- 210 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-09-17
Measured from postings appearing on and disappearing from Five9's own greenhouse board since 2026-08-03. Full hiring picture for Five9.
About this role
As a Software Engineer II at Five9, you will work within an Agile Scrum team to develop and enhance mission-critical services for the company's cloud contact center platform. Your role will involve writing clean code, troubleshooting complex systems, and integrating real-time communication protocols with AI services. You will also be responsible for delivering solutions that run in the public cloud, utilizing modern software development practices.
- benefits
- 1/5
- freshness
- 4/5
- career value
- 4/5
- role clarity
- 4/5
- pay transparency
- 0/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Five9 as an employer.
What you need
- 3+ years of professional experience in software development
- 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
- Strong sense of ownership
Nice to have
- Experience with Modern C++ (C++17+)
- Knowledge of RTP/SIP, audio codecs, SIP/SDP
- Experience with ASR/TTS integration
- Familiarity with AI APIs
- Experience with cloud platforms (AWS, Azure, GCP)
Worth weighing
- No specific salary or benefits listed
- The role involves working with real-time communications and AI technologies, which may require continuous learning and adaptation
- The position is hybrid, which may affect work-life balance depending on the arrangement
Summarised from Five9's posting. Read the full original.
Listed by Five9 on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.
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