Senior Frontend Engineer (React)

TL;DR

Senior Frontend Engineer (React): Designing and developing high-quality, scalable frontend features for a global leader in cfDNA testing with an accent on reusable UI components and performant user interfaces. Focus on optimizing application performance, building modular architectures, and ensuring accessibility (WCAG) across the platform.

Location: Remote (USA)

Salary: $66,000–$83,000

Company

hirify.global is a global leader in cell-free DNA (cfDNA) testing, dedicated to oncology, women’s health, and organ health.

What you will do

• Design and develop scalable frontend features using React and TypeScript.
• Create and maintain reusable UI components and shared libraries to improve consistency and productivity.
• Collaborate with product managers, designers, and backend engineers to translate requirements into intuitive interfaces.
• Contribute to frontend architecture, including state management, API integration, and code structure.
• Optimize application performance, reliability, and ensure responsive, accessible experiences.
• Review code and drive best practices in testing, documentation, and CI/CD workflows.

Requirements

• 5+ years of experience in modern frontend development, with at least 2 years in React.
• Strong proficiency in TypeScript, HTML5, CSS3, and browser APIs.
• Solid understanding of CS fundamentals (data structures, algorithms, networking).
• Experience with authentication/authorization flows such as OAuth, JWT, and SSO.
• Familiarity with build systems (Webpack, Vite) and testing frameworks (Jest, Cypress).
• Must be based in the USA.

Nice to have

• Experience with full-stack technologies like Node.js, GraphQL, or REST APIs.
• Familiarity with data visualization tools such as D3, Chart.js, or Recharts.
• Experience building design systems or internal UI component libraries.
• Exposure to cloud environments and containerized apps (AWS, Docker, Kubernetes).

Culture & Benefits

• Comprehensive medical, dental, vision, life, and disability plans for employees and dependents.
• Free genetic testing and fertility care benefits for employees and immediate families.
• Pregnancy and baby bonding leave.
• 401k and commuter benefits.
• Diverse and inclusive workplace environment with an equal opportunity employer commitment.