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# Senior Full-Stack Engineer

- **Company:** Manta Cares Inc.
- **Location:** San Francisco, CA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Cloud Computing, Code Review, Databases, DevOps, Programming Tools, Python (Programming Language), PostgreSQL, Node.Js, Systems Architecture, TypeScript, Chatbots, ReactJS, Large Language Models, Backend, Database Migration, React Native, Terraform, Golang
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/28_25197_bf4ae7147b8ed7d2a0a7db6cbc2c16a2

## About the Role

* Product engineering track record (5+ years): you've shipped user-facing features end to end and can point to systems you designed or scaled
 * Full-stack TypeScript: browser to API, including hands-on React and NodeJS api servers
 * LLM features in production: you've worked on LLM features in shipping products (e.g. chatbots, agents, streaming features) and understand the potential pitfalls of running them in production
 * Self-directed: you've owned and built significant full-stack projects, taking ambiguous requirements to shipped product with minimal specs and close collaboration with product and design
 * Strong with data models and systems architecture: relational schema design and migrations (Postgres preferred), designing and deploying cloud applications (AWS preferred), * Python (Hope is built in Python)
 * Mobile or hybrid apps (Capacitor, React Native) and shipping to app stores
 * Healthcare or privacy-sensitive domains (such as HIPAA)
 * Terraform/DevOps, * You talk architecture but don't write the code
 * You're rigid about tools or languages; our codebase spans TypeScript, Python and Go
 * You want to build a team or move into management; this is an IC role on a small team

## Description

Hope, our AI companion, and the Notebook, where patients keep notes, medical documents, track appointments and symptoms, are at the center of how patients use Manta. We're hiring a Senior Full-Stack Engineer to make them smarter, faster, and more useful., This is a senior IC role on a small team where every engineer owns part of our platform and product. You'll take features from rough spec to shipping code across the stack and work closely with product, design, and our clinical team. You'll report to Elisabeth Boonin, our Head of Product Development., Ship features end to end: Owning the UI, APIs, data model, tests, and release, then tracking how patients use it to guide what comes next. Upcoming work includes:

 * Making the patient Notebook smarter: Hope AI and the Notebook are siloed today. Connect their content and features so Hope can help patients manage the chaos of their cancer journey
 * Raise Hope AI's quality: Build new LLM features, sharpen Hope's voice toward shorter, clearer answers, roll out model upgrades, and build evals that catch regressions
 * Moving from chatbot to agentic partner/guide: Build a shared conversation state that persists across turns, and modernize our Postgres migrations and database tooling so the data model can evolve quickly

Raising our engineering bar:

 * Shape how we build: Contribute to Hope's core AI agent, code review, engineering standards and agentic development tools and patterns
 * Strengthen shared systems: Work on cross-feature backend systems like our GitOps infrastructure, database migration system, authentication, jobs and pipelines, etc.