Senior Backend Engineer, Core Services

Ellipsis Health; San Francisco (CA); Remote; USD 160,000 - 210,000; Full time

Benefits offered by this job

401(k) matching

Health, vision, and dental insurance

Flexible paid time off

Job summary

Ellipsis Health, based in the San Francisco Bay Area, seeks a Senior Backend Engineer to design, build, and scale core systems powering its conversational AI platform. You will own TypeScript-based backend services and collaborate with AI/ML teams to deliver secure, reliable healthcare solutions.

The role emphasizes API design, microservices, cloud deployments, and strong security practices to handle healthcare data.

Qualifications

• Bachelors or Masters in Computer Science or equivalent practical experience.
• 5+ years of professional backend experience with TypeScript/JavaScript.
• Strong TS/JS and Node.js backend/API development expertise.
• Experience designing/consuming RESTful APIs and GraphQL.
• Solid understanding of microservices, distributed systems, and system design.
• Cloud experience (AWS, GCP, or Azure) and containerized deployments (Docker, Kubernetes).
• Strong SQL/NoSQL skills (PostgreSQL, MongoDB, DynamoDB).
• Security best practices, authentication/authorization, and secure data handling.
• CI/CD pipelines and production monitoring/alerting experience.
• Excellent collaboration in cross-functional teams.

Responsibilities

• Design, develop, and maintain end-to-end features across TypeScript-based backend services.
• Architect and implement scalable APIs and microservices for conversational AI workflows.
• Own services in production end-to-end including deployment and monitoring.
• Lead database design and data pipelines for structured/unstructured healthcare data.
• Maintain secure integrations with healthcare systems and external platforms.
• Implement and manage authentication/authorization across systems.
• Integrate identity management like Zitadel.
• Ensure HIPAA/FHIR compliance across backend systems.
• Optimize performance, reliability, and scalability for high-volume workloads.
• Build and maintain CI/CD pipelines and observability for production services.
• Troubleshoot production issues and participate in on-call rotations.
• Mentor junior engineers and contribute to engineering best practices.
• Stay current with emerging technologies and apply them to improve velocity.

Skills

TypeScript

JavaScript

Node.js

REST APIs

GraphQL

Microservices

Distributed systems

AWS

Docker

Kubernetes

PostgreSQL

MongoDB

Security best practices

Education

Bachelor's or Master's in CS

Tools

Zitadel

Auth0

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 Backend Engineer to help design, build, and scale the core systems powering our conversational AI platform. In this role, you will work primarily on backend services and APIs, collaborating closely with AI/ML engineers, product managers, and other engineers to deliver secure, reliable, and performant 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
• Architect and implement scalable APIs and microservices using TypeScript/Node to support conversational AI workflows and healthcare integrations
• 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 backend systems
• 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 backend applications with strong TypeScript/JavaScript expertise
• Strong proficiency in TypeScript/JavaScript and Node.js for backend and API development
• 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 [e-mail].