Head of Engineering, Voice AI

Sully.ai; Myrtle Point (OR); Remote; USD 150,000 - 200,000; Full time

Job summary

A healthcare technology firm is seeking a Head of Engineering to drive the development of its voice agent platform. You will manage architecture, lead integrations, and ensure service reliability. Ideal candidates have extensive experience in real-time systems and telephony, and thrive in a fast-paced, agile environment. This position offers competitive compensation and a remote-first culture.

Benefits

Competitive salary

Equity options

Flexible working environment

Early-stage impact opportunities

Qualifications

• 7+ years of engineering experience with 3+ years leading teams in real-time voice agent development.
• Deep expertise in telephony and real-time systems.
• Experience with cloud platforms like GCP, AWS, or Azure.

Responsibilities

• Lead voice stack architecture and ensure reliability of services.
• Drive integrations and build scheduling systems.
• Manage and coach teams for optimal performance.

Skills

Leadership in engineering

Telephony expertise

Real-time voice systems

Complex problem solving

Kubernetes and Docker

Tools

Twilio

WebRTC

AWS

Kubernetes

Job description

About the Role

We are seeking a Head of Engineering, Receptionist to own Sully.ai’s voice agent. You will lead end-to-end velocity, reliability, and quality for telephony, ASR, dialog, and scheduling. Focus on Twilio or VoIP stability, low-latency accurate transcription in noisy medical calls, robust dialogue handling, conflict-free scheduling, and enterprise-grade EHR write-backs. Scale from thousands of practice admins to millions of patient interactions. Build the team and the platform.

About Us

Team from OpenAI, DeepMind, NASA, GoogleX, Tesla, and 2 physicians: 6 exits, 2 IPOs.
Our model outperforms Claude, Gemini, and GPT-4.5 on clinical benchmarks.
400+ healthcare orgs signed in 16 months.
️ $25M raised from YC, Amity Ventures, Sequoia scouts, and more.
$1T+ market opportunity. We’re going after all of it.

Key Responsibilities

• Own voice stack architecture across telephony, ASR, TTS, diarization, dialog, and EHR write-back.
• Drive reliability and latency with SLAs, error budgets, incident response, and observability.
• Lead enterprise EHR integrations and multi-office configuration tooling for large practices.
• Build scheduling sync that is conflict free across EMRs and calendars.
• Hire, coach, and organize teams for platform, voice, SMS, integrations, and dashboard.

Hard Requirements

• 7+ years engineering with 3+ years leading teams shipping real-time voice agents at scale.
• Deep telephony and realtime expertise across Twilio or SIP, WebRTC or gRPC, Kafka or queues.
• Strong ASR and TTS production experience and prompt or policy or routing for LLM agents.
• Proven CI or CD, Kubernetes, Docker, and cloud on GCP or AWS or Azure.
• Track record reducing p95 or p99 latency and raising correctness in production ML systems.

Nice-to-Have

• Healthcare data standards and EHR integrations across FHIR or HL7.
• Multilingual voice systems and medical terminology accuracy work.
• SRE or DevOps leadership and automated QA at safety bar.

First-Month Focus

• Establish latency, accuracy, and reliability baselines with dashboards and alerts.
• Stabilize telephony and scheduling: fix call drops, ASR in noise, double-booking, and sync drift.
• Define enterprise roadmap: Epic or Cerner integrations, multi-office tooling, and self-hosted UAE or KSA stack plan.

Success OKRs (90 Days)

• Reduce end-to-end p95 call handling latency by 40 percent and ASR WER on noisy calls by 30 percent.
• Achieve 99.9 percent successful scheduling writes with zero double-booking incidents in pilot cohorts.
• Ship one enterprise EHR integration to pilot and deliver a self-hosted deployment plan with security review.

Culture Fit

• Willing to push back on leadership to defend quality/timelines
• Thrives in high-ambiguity, fast-paced startup environments
• Zero to One Builder, self-managed and self-directed
• Persistent, driven problem solver. Loves getting in the trenches.

Why Join

Sully.ai?

Shape the Future of Healthcare: Build category-defining partnerships that enable doctors to focus on saving lives.
Early-Stage Impact: Join early and play a critical role in shaping our partnership roadmap and overall company growth.
Remote-First Culture: Work with a talented, mission-driven team in a flexible, remote environment.
Competitive Compensation: Enjoy a competitive salary, equity, and the opportunity to make a real difference.
Solve Scalability Challenges: Tackle complex challenges in a rapidly growing company, driving impactful change in healthcare.

Sully.ai is an equal opportunity employer. In addition to EEO being the law, it is a policy that is fully consistent with our principles. All qualified applicants will receive consideration for employment without regard to status as a protected veteran or a qualified individual with a disability, or other protected status such as race, religion, color, national origin, sex, sexual orientation, gender identity, genetic information, pregnancy or age. Sully.ai prohibits any form of workplace harassment.