Senior Backend Engineer

Sunny Health AI Inc.; San Francisco (CA); On-site; USD 120,000 - 150,000; Full time

Benefits offered by this job

Competitive base salary

Meaningful equity

Comprehensive benefits including medical, dental, vision

Retirement plans

On-site collaborative environment

Job summary

Sunny Health AI Inc. in San Francisco is looking for a Senior Backend Engineer to design and enhance secure backend services for healthcare experiences. The ideal candidate will have 5+ years of backend engineering experience, strong proficiency in Rust, and additional skills in languages like Go or Python. Responsibilities include API design, data integration, and collaborating with cross-functional teams to ensure system reliability. Competitive salary and comprehensive benefits are offered in a collaborative environment.

Qualifications

• 5+ years of professional backend engineering experience.
• Strong production experience building services in Rust.
• Proficiency with at least one additional backend language (e.g., Go, Node/TypeScript, Python, or Java).
• Experience designing and operating production APIs and relational databases.
• Experience with distributed systems, cloud infrastructure, and observability tooling.
• Track record of building secure systems in regulated or high-trust environments.

Responsibilities

• Design, implement, and maintain backend services and APIs.
• Define data models and integrate with third-party systems.
• Implement robust authentication, authorization, logging, monitoring, and alerting.
• Collaborate with teams to translate requirements into scalable architectures.
• Participate in code reviews and ensure system reliability.
• Continuously improve system performance, observability, and security.

Skills

Backend engineering experience (5+ years)

Rust programming language

At least one additional backend language

Designing and operating production APIs

Experience with distributed systems

Cloud infrastructure knowledge

Job description

Job Description

We’re seeking a Senior Backend Engineer to design, build, and scale secure, enterprise-grade backend services that power trusted healthcare experiences. In this role, you’ll work at the core of our platform, building systems that handle sensitive data with uncompromising standards for security, reliability, and performance.

Responsibilities

Design, implement, and maintain backend services and APIs supporting AI-driven care navigation and benefits workflows.

Define data models and integrate with third-party systems such as eligibility, claims, scheduling, and identity providers.

Implement robust authentication, authorization, logging, monitoring, and alerting for production systems.

Collaborate with frontend, product, data, and security teams to translate requirements into scalable architectures.

Participate in code reviews, technical design discussions, and on-call rotations to ensure system reliability.

Continuously improve system performance, observability, and security posture.

Requirements

5+ years of professional backend engineering experience.

Strong production experience building services in Rust.

Proficiency with at least one additional backend language (e.g., Go, Node/TypeScript, Python, or Java).

Experience designing and operating production APIs and relational databases.

Experience with distributed systems, cloud infrastructure, and observability tooling.

Track record of building secure systems in regulated or high-trust environments.

What We Offer

Competitive base salary and meaningful equity.

Opportunity to work on mission-critical healthcare infrastructure.

On-site, highly collaborative engineering environment in San Francisco.

Comprehensive benefits including medical, dental, vision, and retirement plans.