Linus Health is a Boston-based digital health company transforming brain health worldwide. They are seeking a Senior Full Stack Engineer to design and build core systems for their AI-enabled healthcare platform, collaborating with various teams to deliver scalable solutions.
Responsibilities:
- Design and build full-stack platform capabilities using React + TypeScript and backend services in Node.js (TypeScript), Python, or Java
- Own the architecture and delivery of complex features and services, ensuring scalability, reliability, and maintainability
- Design and evolve RESTful APIs and distributed systems supporting the Linus Health platform
- Lead technical design discussions and help guide architectural decisions across teams
- Collaborate closely with Product, Design, Data Science, and Clinical teams to translate complex requirements into elegant technical solutions
- Leverage AI-assisted development tools to accelerate engineering workflows and improve developer productivity
- Prototype and evaluate LLM-enabled product capabilities and agent-style workflows
- Mentor and support other engineers through code reviews, design discussions, and knowledge sharing
- Help establish and maintain engineering standards for testing, reliability, observability, and CI/CD pipelines
- Identify and address technical debt and system improvements to maintain long-term platform health
Requirements:
- 7+ years of software engineering experience building production systems
- Strong experience with React and modern frontend development, ideally using TypeScript
- Significant experience building backend services or APIs using Node.js, Python, or Java
- Deep understanding of web architecture, distributed systems, and API design
- Experience designing and delivering complex systems or large features end-to-end
- Experience working with AI-assisted development tools or modern developer productivity tooling
- Familiarity with LLM-based systems, automation workflows, or simple agent frameworks
- Strong engineering discipline around testing, debugging, and maintainable code
- Excellent communication and collaboration skills across technical and non-technical teams
- Experience integrating LLM APIs or AI-enabled product features
- Familiarity with agent frameworks such as LangChain, LangGraph, or CrewAI
- Experience with cloud-native infrastructure, particularly AWS
- Experience with microservices architectures or backend-for-frontend (BFF) patterns
- Experience developing mobile applications using React Native, Swift, or other modern mobile frameworks
- Experience working in digital health or regulated environments (HIPAA, SOC 2, etc.)
- Exposure to data platforms, analytics systems, or machine learning pipelines