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[Remote] Senior Full Stack Engineer(React, Node.JS)

Remote, USA Full-time Posted 2026-06-16

Note: The job is a remote job and is open to candidates in USA. Linus Health is a Boston-based digital health company focused on transforming brain health for people across the world. They are seeking a Senior Full Stack Engineer to drive the design, development, and delivery of complex software systems, collaborating closely with cross-functional partners and mentoring other engineers.

Responsibilities

  • 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

Skills

  • 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
  • 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

Benefits

  • Yearly target discretionary bonus
  • Equity
  • Health benefits
  • Unlimited PTO
  • A monthly flex day
  • A 401K plan with a match

Company Overview

  • Linus Health is a digital health company focused on improving mental health and brain health by using screening technology. It was founded in 2019, and is headquartered in Waltham, Massachusetts, USA, with a workforce of 51-200 employees. Its website is https://linushealth.com/.
  • Company H1B Sponsorship

  • Linus Health has a track record of offering H1B sponsorships, with 1 in 2022. Please note that this does not guarantee sponsorship for this specific role.
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