Senior Frontend Infrastructure Engineer

Own and evolve shared frontend infrastructure across web and mobile, including design systems, UI component libraries, data-fetching layers, notification systems, AI-powered internal tools, CLI automations, CI/CD, QA tooling, performance improvements, backend-for-frontend services, architecture documentation, and engineering mentorship.

Responsibilities

• Own and evolve shared frontend infrastructure including design systems, UI component libraries, data-fetching layers, and notification systems across web and mobile
• Contribute to product and design engineering work to keep the team connected to user experience
• Build AI-powered internal tools and automations such as changelog builders, cherry-pick automations, and CLI tools using LLMs
• Lead large-scale migrations with clear tooling decisions and plans other teams can follow
• Build and improve release automation, CI/CD pipelines, and QA tooling
• Drive performance improvements across applications
• Maintain backend-for-frontend services supporting multiple product teams
• Produce high-quality, well-tested code and architecture documentation
• Mentor engineers through code review, documentation, and best practices

Requirements

• 5+ years of software engineering experience
• Deep experience with React and React Native across web and mobile
• Experience building developer tooling, design systems, or shared infrastructure
• Strong frontend architecture, styling, data-fetching, and build-tooling judgment
• Experience delivering large, ambiguous projects end-to-end
• Comfort with CI/CD, release engineering, testing frameworks, and automation
• Eagerness to explore AI-assisted development
• Desire to keep up with modern web and mobile best practices
• Active open source contributions are a nice to have
• AI-powered developer tools, CLI, LLM, Swift, Kotlin, native mobile, and crypto experience are nice to have; candidates with no crypto experience are welcome

Benefits

• Company-paid medical, dental, and vision for employees and dependents
• Wellness offerings including Equinox Fitness Clubs partnership
• 401(k) with 4% employer contribution
• Annual $1,500 education stipend
• Unlimited and encouraged time off
• Up to 16 weeks paid parental leave
• Home office setup stipend for remote employees
• Daily lunches at New York headquarters
• Eligibility for token compensation