Linus Health

Senior Full Stack Engineer I (React, Node.JS)

Linus Health$155K — $165K *
US-AnywhereRemote in Boston, MA
Healthcare
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of software engineering experience, emphasizing React and Node expertise.
  • 3+ years of building RESTful services and database design in Node.
  • Strong command of modern JavaScript/TypeScript tooling including Webpack and Jest.
  • Familiar with AI-assisted development workflows to enhance productivity.
  • Proven skills in frontend performance optimization techniques.

Responsibilities

  • Build full stack applications based on RESTful services with a focus on performance and scalability.
  • Lead by example, participating in coding, code reviews, and feature design.
  • Champion AI-assisted practices for code generation to enhance development efficiency.
  • Ensure adherence to best practices for testing and CI/CD processes.
  • Collaborate with engineers to meet team objectives through effective communication.
  • Translate project requirements into maintainable solutions in partnership with cross-functional teams.

Benefits

  • Equity participation in the company.
  • Unlimited PTO policy.
  • Monthly flex day off.
  • 401K plan with matching contributions.
  • Comprehensive health benefits.
Full Job Description
About the role

As a Senior Full stack Software Engineer I you will be a core team member responsible for driving the design, development, and delivery of complex software systems. By combining deep front end technical expertise with strong backend api design abilities you will drive secure, performant implementations with your fellow team members toward high-impact outcomes. Influence api and database design decisions, front end technical direction, and ensure the scalability, reliability, and maintainability of software solutions. Collaborate closely with cross-functional partners-including product managers, designers, and other engineers-to align technical initiatives with business goals. Mentor and coach other engineers, fostering growth, best practices, and a culture of technical excellence within the organization.

Please note that this position is for a Senior I FS Engineer, not a Senior II or Staff. Please also only apply if you're salary expectations are within the range that is included on the job post below.

What you'll do

  • Build full stack applications upon restful services, ensuring performant, scalable, observable, maintainable solution in collaboration with Software Architect.
  • Lead by example with hands-on coding, code reviews, full stack feature design, while also anticipating long-term challenges such as system performance, technical debt, and evolving technology stacks.
  • Advance AI-assisted usage by championing best practices and practical applications for ai-assisted code generation ensuring speed gains are paired with validation, security, and reliability.
  • Uphold best practices for testing (unit, integration, snapshot, e2e), CI/CD pipelines, code quality, and observability in all solutions.
  • Collaborate with other engineers across projects using excellent written and verbal communication skills with a proactive mindset to deliver on the goals of the team.
  • Collaborate cross-functionally with Software Architect, Product, Design, Data Science/Medical, and Security to translate requirements into elegant, maintainable solutions that meet our customer's needs.

About You:

Must Haves:

  • 5+ years of software engineering experience with significant expertise in React framework and Node.
  • 3+ years building restful services including database design in Node.
  • Strong grasp of modern JavaScript/TypeScript tooling and ecosystems (Webpack, Vite, Babel, ESLint, Jest, Cypress/Playwright).
  • Familiarity with AI-assisted development workflows, and proven ability to accelerate development workflows through practical application.
  • Proficiency in frontend performance optimization (bundle splitting, lazy loading, caching strategies, rendering patterns).
  • Strong communication skills-able to drive consensus, document decisions (ADRs, RFCs), and present tradeoffs clearly to technical and non-technical stakeholders.

Nice To Have's:

  • Experience with mobile development in React Native or iOS/Swift.
  • Exposure to data visualization libraries (D3, Victory, Recharts, or native iOS charting).
  • Previous work in digital health or regulated environments (EHRs, HIPAA, GDPR).
  • Experience with Temporal orchestration.
  • Experience with Aurora Postgres, database design.
  • Experience / familiarity with Java services.


How You Embody Our Values

At Linus, we live by Be Real, Be Wise, Be Noble, Be a Team, Be Masters of Our Craft, Think Big and Act Bold. In this role, you will:

  • Be Real: communicate technical tradeoffs and risks candidly across teams.
  • Be Wise: guide design choices using data, metrics, and long-term thinking.
  • Be Noble: uphold high standards for api responsiveness, production observability, and customer data privacy in every decision.
  • Be a Team: enable engineers to succeed through mentorship, documentation, and open collaboration.
  • Be Masters of Our Craft: set exemplary standards for api quality, performance, and maintainability (including AI-assisted workflows).
  • Think Big and Act Bold: lead bold initiatives like public api development that transform how we interface with the broader healthcare ecosystem.


Compensation: The base salary budgeted for this position is in the $155,000-165,000 range per year. This position will also include a yearly target discretionary bonus as well as equity, health benefits, unlimited PTO, a monthly flex day, a 401K plan with a match and more. The final offer determined for the candidate who is hired into this position will depend on a number of factors, including, but not limited to, the candidate's relevant skills, professional experience, labor market conditions, etc.

About Linus Health

Linus Health is a healthcare technology company that provides a platform for patients to access personalized care. The platform uses artificial intelligence and machine learning to analyze patient data and provide personalized recommendations for treatment. Linus Health's mission is to improve the quality of care and reduce healthcare costs by empowering patients to take control of their health. The company is based in Cambridge, Massachusetts and was founded in 2018.
Learn more about Linus Health
Size
10 employees
Industry
Founded
2018

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