Senior Software Engineer - Voice AI & LLM Agents (Python)

Job Description

Job Description

Senior Software Engineer – Voice AI & LLM Agents (Python)
Location: Hybrid, 3 days a week onsite in San Francisco or San Diego
Type: Full-time
Pay: $175,000–$225,000 base + benefits

About the company
We’re a venture-backed health tech startup building AI software for hospitals. Our voice agents talk with patients by phone, help them through their care, and finish practical tasks along the way, while our web platform gives hospital teams the data and tools to manage patient care. It’s a small company with real customers and work that makes a difference.

About the role
You’ll be a senior, hands-on engineer with two areas of ownership. Most of your time goes to our AI calling agents. The rest goes to the web product that clinicians and hospital staff use every day. You’ll work closely with our engineering leadership and own your work from design through production.

What you’ll work on

• Build and improve AI phone agents that handle both inbound and outbound patient calls
• Make conversations feel natural and dependable: interruptions, handing calls to a live person, wrapping calls up cleanly, and supporting multiple languages
• Design the prompts, tool integrations and logic that let agents complete tasks for patients
• Build testing and monitoring that catch quality problems in AI behavior before patients notice them
• Keep realtime calls fast and stable, and release changes safely
• Build dashboards, workflow tools and APIs for hospital teams
• Work with clinical and product teammates to keep patient-facing automation safe and appropriate

You’ll be a strong fit if you have

• 5+ years as a software engineer, with production systems you owned
• A production LLM or agent application you personally built and maintained , one that used tools or APIs to get real work done. Expect to walk us through how it worked and how you tested it.
• Strong Python skills, plus solid React and TypeScript
• Experience with realtime audio, telephony or communications (for example LiveKit, Twilio, SIP or WebRTC), or a track record of picking up new systems fast
• Good judgment about security and sensitive data
• You enjoy small teams, ambiguous problems and clear written communication

Bonus points

• Voice agents in production
• Healthcare data experience (HIPAA, SOC 2)
• GraphQL or serverless on AWS
• Data-heavy dashboards or workflow UIs
• Automated evals for AI agent behavior

Tools we use
Python, React, TypeScript, AWS, GraphQL, LiveKit, SIP, LLM APIs, pytest, Docker

Benefits
Medical, dental, vision and life insurance; 401(k); unlimited PTO

Candidates must be authorized to work in the U.S. without sponsorship.

A venture-backed health tech company building AI software that helps hospitals coordinate patient care after procedures, including voice agents that talk with patients and complete real follow-up tasks. Its mission is to improve access to care and close care gaps, especially in underserved communities.

Company Description

A venture-backed health tech company building AI software that helps hospitals coordinate patient care after procedures, including voice agents that talk with patients and complete real follow-up tasks. Its mission is to improve access to care and close care gaps, especially in underserved communities.