---
title: 'Senior Full Stack Engineer, Core Services at Ellipsis Health'
canonical: 'https://feeny.ai/job/senior-full-stack-engineer-core-services-ellipsis-health-san-francisco-8b0bawwmzadx'
type: 'job'
last_seen: '2026-09-07'
---

# Senior Full Stack Engineer, Core Services at Ellipsis Health

- **Company:** Ellipsis Health
- **Location:** San Francisco, CA
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-05-01
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/ellipsis-health/6e9b69e6-3133-47bb-8bbb-584e790a3a52

## Job description

Ellipsis Health is creating cutting-edge AI/ML products that solve healthcare staffing challenges and administrative burdens using conversational AI and our patented voice biomarker technology - helping deliver better healthcare for everyone.

We are seeking a Senior Full Stack Engineer to help design, build, and scale the core systems powering our conversational AI platform. In this role, you will work across backend services and frontend applications, collaborating closely with AI/ML engineers, product managers, designers, and other engineers to deliver secure, reliable, and user-friendly solutions for the healthcare industry.

Ellipsis Health is located in the San Francisco Bay Area, but we are open to remote candidates within the United States.

## RESPONSIBILITIES:

- Design, develop, and maintain end-to-end features across TypeScript-based backend services and modern frontend applications
- Architect and implement scalable APIs and microservices using TypeScript to support conversational AI workflows and healthcare integrations
- Build and evolve frontend user interfaces using React and Redux, focusing on usability, performance, and reliability
- Own services in production end-to-end, including deployment, monitoring, incident response, and continuous improvement of reliability and performance
- Lead the design and implementation of database schemas and data pipelines for structured and unstructured healthcare data
- Design and maintain secure integrations with healthcare systems, scheduling systems, and external platforms
- Implement and manage authentication and authorization across systems
- Integrate and manage identity and access management solutions such as Zitadel
- Ensure security, privacy, and compliance (HIPAA, FHIR, and related standards) across the full stack
- Optimize systems for performance, reliability, and scalability, supporting high-volume, real-time workloads
- Build and maintain CI/CD pipelines, infrastructure automation, and observability for production services
- Troubleshoot and resolve complex production issues; participate in on-call or production support rotations as needed
- Mentor junior engineers and contribute to engineering best practices, code quality, and architectural standards
- Stay current with emerging technologies and frameworks, applying them thoughtfully to improve product velocity and quality

## QUALIFICATIONS:

- Bachelor’s or Master’s degree in Computer Science or equivalent practical experience
- 5+ years of professional experience building full-stack applications with strong TypeScript/JavaScript expertise
- Strong proficiency in TypeScript/JavaScript for backend and API development
- Experience building frontend applications using React and state management libraries such as Redux
- Expertise in designing and consuming RESTful APIs and/or GraphQL
- Solid understanding of microservices architectures, distributed systems, and system design
- Hands-on experience with cloud platforms (AWS, GCP, or Azure) and containerized deployments (Docker, Kubernetes)
- Strong database skills with SQL and NoSQL systems (e.g., PostgreSQL, MongoDB, DynamoDB)
- Deep understanding of security best practices, authentication/authorization, and secure data handling
- Experience building and maintaining CI/CD pipelines and production monitoring/alerting systems
- Excellent collaboration and communication skills in cross-functional teams

## NICE TO HAVE:

- Experience implementing role-based access control (RBAC) and fine-grained permission systems
- Familiarity with identity providers and access management platforms such as Zitadel, Auth0, or similar
- Familiarity with healthcare data standards such as FHIR and HL7
- Experience with conversational AI, voice systems, or real-time systems
- Prior experience working in health tech or other regulated industries
- Experience building or operating large-scale distributed systems
- Exposure to DevOps practices, infrastructure-as-code, or site reliability engineering concepts

## SALARY AND BENEFITS

We offer competitive salary and benefits, including 401(k) matching, health, vision, and dental insurance, and very flexible paid time off.

The typical salary range for this role is $160,000 to $210,000 USD, depending on skills, qualifications, and relevant experience.

## BACKGROUND CHECKS

As a health technology company, we reserve the right to run background checks on candidates to whom we extend offers, in compliance with applicable laws. We evaluate candidates holistically and comply with all “ban the box” regulations.

## ASSISTANCE

If you have a disability or require accommodations during the application or recruitment process, please contact careers@ellipsishealth.com.

## About Ellipsis Health

## Company Overview
- **One-liner**: Ellipsis Health provides an emotionally intelligent AI care manager, Sage, that automates patient engagement, clinical assessments, and care coordination for health plans, health systems, specialty care, and pharmaceutical companies.
- **Entity Type**: Private (Series A-II; total funding $75.39M)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2017
- **Founders**: Not publicly available

## Core Business
- Primary industry: Healthcare AI / Healthcare IT
- Target customers: B2B – health plans, health systems, specialty care providers, and pharmaceutical companies
- Mission/purpose: To deliver empathetic, autonomous virtual care management that reduces administrative burden, improves patient outcomes, and enables care teams to work at the top of their licenses.

## Products & Services
- **[Sage – AI Care Manager](https://ellipsishealth.com/product/)**: An agentic AI platform that conducts fully autonomous, natural-language calls with patients. Use cases include program enrollment & engagement, clinical assessments (HRAs, HOS, HCAHPS), care coordination, medication adherence, discharge check-ins, and preventive care outreach. Sage is multilingual, HIPAA and SOC2 Type 2 compliant, and designed with clinical oversight.

## Market Standing
- **Valuation**: Not disclosed
- **Key Metric**: Annual revenue ~$8.1M (LinkedIn estimate) – not independently verified; total disclosed funding $75.39M (CB Insights) / $79.1M (LinkedIn)
- **Notable Investors/Partners**: Khosla Ventures (lead Series A), Salesforce, Mitsui & Co. Global Investment, AME Cloud Ventures, Colliers, and 30+ other investors. Strategic partnerships with Salesforce (Sage integrated into Salesforce Health Cloud) and NVIDIA (to enhance NLP capabilities).
- **Growth Signals**: Headcount grew 60% YoY to 60 employees; LinkedIn followers +80% YoY. Raised $45M Series A-II in July 2025. Filed 14 patents around psychiatric diagnosis, computational linguistics, and mood disorders.

## Competitive Advantages
- **Emotionally intelligent, conversational AI** that adapts to patient tone and responses, driving higher engagement than rigid IVR systems.
- **Healthcare-native security and compliance**: HIPAA, SOC2 Type 2, end-to-end encryption, and continuous third-party audits.
- **Clinical oversight** built into AI operations, preserving trust and safety.
- **Proprietary acoustic and NLP models** for voice-based screening and monitoring of behavioral health conditions.
- **Pre-built integrations** with EHRs and Salesforce Health Cloud, reducing deployment friction.

## Strategic Focus
- Deepen integration with major health IT ecosystems (Salesforce, EHRs).
- Expand use cases into medication adherence and preventive care.
- Scale the platform through partnerships (Clearstep, NVIDIA) to reach more health plans and systems.
- Continue patenting voice-AI innovations for broader clinical applications.

## Why Work Here
- Opportunity to build cutting-edge AI in a regulated, high-impact industry (healthcare).
- Cross-functional team with backgrounds from top tech and healthcare companies.
- Remote-friendly culture with employees across the US, Canada, India, and Brazil.
- Current open roles (via [Ashby](https://jobs.ashbyhq.com/ellipsis-health)): Frontend Engineer, Backend Engineer, Senior Full-Stack Engineer, Technical Recruiter – Healthcare AI.
- Engineering-led environment with strong emphasis on AI safety, ethical AI, and clinical rigor.

## Sources
1. [ellipsishealth.com](https://ellipsishealth.com/)
2. [cbinsights.com](https://www.cbinsights.com/company/ellipsis-health)
3. [linkedin.com](https://www.linkedin.com/company/ellipsis-health)
4. [ellipsishealth.com/product](https://ellipsishealth.com/product/)
5. [ellipsishealth.com/careers](https://ellipsishealth.com/careers/)

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