Mira Mace

Senior AI Engineer – Voice & Agentic Systems

Mira Mace

full-time

Posted on:

Location Type: Hybrid

Location: San Francisco • California • United States

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Job Level

Senior

Tech Stack

Python

About the role

  • Build and own the voice AI system. Design, develop, and deploy voice agents that interact with patients naturally — handling intake calls, appointment reminders, medication check-ins, and care navigation. You'll manage the full pipeline: speech-to-text, LLM reasoning, text-to-speech, and real-time orchestration.
  • Architect agentic workflows for healthcare operations. Build autonomous agents that handle the tedious backend work our nurses shouldn't have to — insurance verification, prior authorizations, claims follow-ups, and care coordination tasks. Design multi-step workflows that can reason, use tools, and escalate to humans when needed.
  • Ship fast and iterate with real users. Deploy to production, monitor how agents perform with actual patients, and improve based on real conversations. You'll own the feedback loop from call recordings to prompt improvements to system-level changes.
  • Build the evaluation and safety layer. Healthcare AI needs to be right. Establish evaluation frameworks, quality metrics, and guardrails so our agents are reliable, safe, and trustworthy with sensitive health information.
  • Shape the technical roadmap. Work with the founders to decide what to build next. You'll bring deep knowledge of what's possible with current AI capabilities and help us make smart bets on where the technology is heading.
  • Lay the foundation for scale. Make architectural decisions that will hold up as we grow from hundreds of patients to hundreds of thousands. Document systems, establish best practices, and build with the next engineer in mind.

Requirements

  • You've built a voice agent or agentic AI system from scratch and shipped it to production — not just a demo, but something handling real conversations with real users.
  • You have 4+ years of experience as a software or AI engineer, with deep hands-on work in LLMs, prompt engineering, and agent orchestration (LangGraph, custom frameworks, or similar).
  • You're proficient with the modern voice AI stack using orchestration frameworks (LiveKit).
  • You write strong production Python and are comfortable with real-time systems, WebSockets, and streaming architectures.
  • You've monitored and debugged AI systems in production — you know what it takes to keep an agent reliable when it's talking to real people.
  • You can work across the stack when needed. You don't need a frontend engineer to build an internal dashboard or a DevOps engineer to get something deployed.
  • You're comfortable with ambiguity. The playbook doesn't exist yet, and you're excited to build it.
  • You care about doing the right thing for patients, especially when it involves their health, finances, or privacy.
Benefits
  • Mission with massive impact. We're not just improving healthcare — we're transforming patient outcomes at scale. Every system you build puts a dedicated health advocate in someone's corner. We're building one of the largest AI-first companies in healthcare, and this is your chance to own the technical foundation from day one.
  • High ownership. You'll shape the AI architecture, the voice experience, and the agentic systems that power the entire product. This isn't a feature team — it's the core of what we do.
  • Learn fast, build fast. We believe in experimentation, measurement, and steady improvement. You'll ship every week, not every quarter.
  • Grow with us. You'll be part of the team that takes Mira Mace from early product to scale. The decisions you make now will define the company's technical DNA.
  • Meaningful early equity. This is a full-time role with competitive compensation and real ownership in what we're building.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
voice AIagentic AILLMsprompt engineeringagent orchestrationPythonreal-time systemsWebSocketsstreaming architecturesevaluation frameworks
Soft Skills
problem-solvingadaptabilitycommunicationcollaborationattention to detailuser-focusedcritical thinkinginitiativereliabilityempathy