Senior Software Engineer (React)

TL;DR

Senior Software Engineer (React): Building and optimizing reusable frontend SDKs and components for hirify.global's platform with an accent on API design, scalability, and developer experience. Focus on tackling complex business logic, localization, accessibility, and architectural sustainability while leveraging AI-assisted development tools.

Location: Hybrid in Denver, San Francisco, New York City, or Scottsdale, USA. Employees based in these locations are expected to work from the office approximately 2-3 days per week. A secure, reliable, and consistent internet connection is required for remote workdays.

Salary: $140,000–$170,000/year (Denver), $160,000–$185,000/year (Los Angeles), $170,000–$210,000/year (San Francisco, New York, Seattle).

Company

hirify.global is a product company dedicated to growing the small business economy by providing essential services like payroll, health insurance, 401(k)s, and HR.

What you will do

• Design and evolve reusable SDK interfaces and components that power payroll, company management, contractor workflows, and other core platform capabilities.
• Own technical initiatives from API and abstraction design through production delivery.
• Collaborate with backend engineers to define clear, maintainable contracts between platform services and the SDK layer.
• Support partner feature development and migrations from legacy integrations to modern SDK interfaces.
• Raise SDK quality standards across testing, localization (i18n), accessibility (a11y), and developer experience.
• Leverage AI-assisted development tools strategically to accelerate implementation, improve code quality, and explore new ways of building and evolving SDK capabilities.

Requirements

• 5+ years of professional frontend or platform engineering experience, with strong proficiency in React and advanced TypeScript (including API surface and type design).
• Experience building scalable, reusable systems such as SDKs, component libraries, or integration layers.
• Strong understanding of frontend–backend integration patterns and experience collaborating on clear service contracts.
• Practical experience implementing localization (i18n), accessibility (a11y), and high-quality testing standards.
• Ability to operate effectively in evolving systems and make thoughtful abstraction decisions under ambiguity.
• Work from a designated US office location 2-3 days per week (Denver, San Francisco, New York City, or Scottsdale).

Nice to have

• Experience in payroll, HR tech, fintech, or other complex back-office domains.
• Familiarity with AI-assisted development tools and interest in applying them strategically to improve engineering workflows.

Culture & Benefits

• Mission-driven to support over 400,000 small businesses across the country.
• Commitment to building a workplace that represents and celebrates the customers we serve.
• Proud to be an equal opportunity employer committed to providing reasonable accommodations.
• Hybrid work model with 2-3 days in office for designated locations.
• Requires a secure, reliable, and consistent internet connection for non-office days.
• Total Rewards philosophy detailed on the company's careers page.