18 days ago
Base Salary
$230k - $390k/yr
Responsibilities
- Build multimodal customer experiences across voice, text, screen, photos, links, and forms.
- Develop AI voice experiences that operate reliably across carriers, telephony networks, and contact centers.
- Build support for the Personal Agent Protocol so personal AI assistants can interact safely with company agents.
- Develop ChatKit native iOS, Android, and web components for voice controls, waveforms, transcripts, and chat.
- Own the global telephony stack, including SIP, WebRTC, the Sierra Voice Protocol, and contact-center integrations.
- Build tools that allow developers to launch channels such as SMS, WhatsApp, RCS, email, LINE, Messenger, and Instagram.
- Design and operate reliable, secure, maintainable systems handling millions of calls and messages.
- Work across backend, infrastructure, mobile, and web while driving projects from conception through delivery.
Requirements
- At least 4 years of hands-on experience building production systems, with 3+ years building production software used by real users.
- Degree in Computer Science or a related field, or equivalent professional experience.
- Strong backend engineering fundamentals and the ability to work across infrastructure, mobile, and web.
- Ability to build reliable, maintainable, secure, and scalable systems.
- Preferred experience building AI products for enterprise or consumer users.
- Preferred experience building native iOS SDKs with Swift or Android SDKs with Kotlin.
- Preferred experience with messaging apps, voice apps, voice agents, SIP, WebRTC, Twilio, or contact-center platforms.
- Preferred experience with real-time, low-latency distributed systems.
Benefits
- Flexible unlimited paid time off.
- Medical, dental, and vision benefits for employees and families.
- Life insurance, disability benefits, and a retirement plan dependent on country of employment.
- Parental leave and fertility and family-building benefits through Carrot.
- Lunch, snacks, coffee, and a discretionary benefit stipend.
- Free alphorn lessons.
- Equity-plan eligibility for eligible full-time employees, subject to applicable plans and policies.
- Primarily in-person work based in San Francisco, with offices across North America, Europe, and Asia; benefits may vary by region.
About Sierra
Sierra builds an enterprise conversational AI platform that powers customer service and other customer-facing interactions for large organizations. The company sells SaaS and deployed solutions that integrate with enterprise systems and meet security and compliance requirements. Headquartered in San Francisco with offices across North America, Europe, and Asia-Pacific, Sierra was co-founded by Bret Taylor and Clay Bavor, longtime leaders at Salesforce, Facebook, and Google.