Software Engineer, AI Agents & Multimodal Communications

Sierra AI; San Francisco (CA); On-site; USD 140,000 - 210,000; Full time

Job summary

Sierra AI is hiring for a role focused on building production-grade AI agent platforms. You will contribute to multi-modal conversations across voice, text and in-app UI, while extending the global telephony stack and integrations with major contact-center platforms.

The position emphasizes reliability, security, and scale, with collaboration across backend, mobile and web teams to ship end-to-end AI agent experiences.

Qualifications

• Bachelor's degree in Computer Science or equivalent experience.
• Experience building production software used by real users.
• Strong understanding of distributed systems and scale.

Responsibilities

• Build and scale multi-modal AI agent platform across voice, text and screen.
• Develop the global telephony stack and integrations with contact-center platforms.
• Deliver reliable, high-performance backend and mobile/web components.
• Collaborate across teams to ship end-to-end AI agent experiences.

Skills

Production software

Distributed systems

Cloud services

Education

BS in Computer Science or related field

Tools

SIP

WebRTC

Twilio

Job description

Sierra AI is hiring for a role focused on building production-grade AI agent platforms. You will contribute to multi-modal conversations across voice, text and in-app UI, while extending the global telephony stack and integrations with major contact-center platforms.

The position emphasizes reliability, security, and scale, with collaboration across backend, mobile and web teams to ship end-to-end AI agent experiences.