Principal Full Stack Engineer (Hybrid)

Backed by a major non-profit healthcare consortium, our client is a newly formed, well-funded healthcare technology spin-off on a mission to fix a fundamentally broken industry. They are building the universal operating system for healthcare—an AI-native, event-driven platform connecting payers, providers, and patients. This is not about maintaining legacy systems; it is about building a disruptive, intelligent data hub from the ground up.

This is a hands-on, coding-heavy Principal role for a builder, not an enterprise architect. You will write production code every day across the full platform—front-end, back-end, and full-stack work spanning AI and chat, document processing, analytics, and claims processing, all on a single modern tech stack. You will architect where it matters (assembling high-performance services, designing database schemas), but architecture is one part of the job, not the whole job.

The environment is startup-minded with CI/CD and full end-to-end ownership. Developers own setup, testing, and integration testing without handing work off across silos, which lets the team move faster than a traditional enterprise structure allows. We are looking for self-driven engineers who push back with suggestions rather than waiting for direction.

•    *Must be eligible to work on W2 without sponsorship. Not eligible for C2C.

• Pay Rate: $85–$100/hr
• Duration: 6-month contract-to-hire
• Location: Hybrid; 2x/week in office—San Diego, Long Beach, Sacramento, Rancho Cordova, or Oakland (SF Bay Area)

• Write production code daily in Node.js and TypeScript to build scalable, cloud-native applications across all platform products.
• Build back-end services, APIs, and front-end components in React, working as a full-stack contributor rather than within a single silo.
• Build secure, high-scale enterprise APIs and integration layers, including API gateways and event-driven systems.
• Own work end to end—setup, development, testing, and integration testing—within a CI/CD and DevSecOps workflow.
• Architect high-performance services and design database schemas as part of building, not as a separate hand-off.
• Incorporate AI capabilities and real-time data streaming into the platform.
• Work within Azure using Kubernetes (AKS), Docker, and Terraform to deploy and scale applications.
• Provide proactive, tech-lead-caliber reporting and guide other engineers through code reviews and best practices while remaining deeply hands-on in the code

• 10+ years of software engineering experience, currently hands-on at a Senior, Staff, or Principal level. This is a builder role; candidates whose recent work is primarily architecture or oversight are not a fit.
• Deep, current expertise in Node.js and TypeScript. This is the core stack; Java and .NET / C# backgrounds are not a match.
• Strong front-end experience with React.
• Deep experience building APIs and back-end services.
• Self-driven working style with a track record of proposing improvements and pushing back constructively rather than waiting for direction.
• Strong communication skills with proactive, tech-lead-caliber reporting expected at the principal level.
• Cloud-native development experience in Azure, hands-on with Kubernetes (AKS), Docker, and Terraform (Infrastructure as Code)