Sierra
Software Engineer, Channels and Experiences
$230K–$390K
San Francisco, CA · On-site · Full-time · Posted Oct 22, 2026
- Experience
- 4+ years hands-on building production systems; also states 3+ years building production software that real users depend on.
- Education
- Degree in Computer Science or related field, or equivalent professional experience.
About the job
Build and operate the communication channels and in-app experiences that connect Sierra’s AI agents with customers across voice, messaging, email, and apps.
What you'll do
- Build multimodal agent experiences, including voice, chat, and native app components.
- Develop and own telephony systems, integrations, and tools for launching communication channels.
- Build a safe way for personal AI agents to interact with companies and Sierra agents.
What they ask for
- At least 4 years of hands-on experience building production systems; the posting also says 3+ years building production software real users depend on.
- Degree in Computer Science or a related field, or equivalent professional experience.
- Strong backend fundamentals and ability to work across backend, infrastructure, mobile, and web.
- Build reliable, maintainable, and secure systems that scale.
Nice to have
- Experience building AI products, messaging or voice apps, or voice agents.
- Experience with native iOS or Android SDKs, SIP, WebRTC, Twilio, contact-center platforms, or real-time low-latency distributed systems.
Pay
$230K – $390K USD base salary
Tools
SIP, WebRTC, Sierra Voice Protocol, ChatKit, iOS, Android, Swift, Kotlin
AI focus
Build AI voice, chat, and messaging agent experiences, including multimodal interactions and support for personal AI agents.
Model-written summary · the original posting is authoritative