Senior Frontend Infrastructure Engineer

Skills

About the Role

You will own and evolve shared frontend infrastructure, including design systems, UI component libraries, data-fetching layers, and notification systems across web and mobile. You will build AI-powered internal tools and CLI automations, lead large-scale migrations, improve CI/CD and QA tooling, drive app performance, maintain backend-for-frontend services, produce well-tested code and architecture docs, and mentor engineers through reviews and documentation.

Requirements

• 5+ years of software engineering experience
• Deep experience with both React and React Native and comfort working across web and mobile from a single codebase
• Strong track record building developer tooling, design systems, or shared infrastructure with a product sensibility
• Well-formed opinions on frontend architecture, styling systems, data-fetching patterns, and build tooling with the ability to justify them
• Experience owning and delivering large, ambiguous projects end-to-end with minimal direction
• Comfort with automation including CI/CD, release engineering, and testing frameworks
• Eagerness to explore and push the boundaries of AI-assisted development
• Desire to keep up with modern best practices in web and mobile development
• Active open source contributions to frontend or tooling ecosystems (nice to have)
• Experience building AI-powered developer tools, CLI tools, or internal automations with LLMs (nice to have)
• Experience with Swift or Kotlin or native mobile development (nice to have)
• Familiarity with crypto features and concepts (candidates with no crypto experience are welcome) (nice to have)

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 and contribute to 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 to increase reliability and velocity
• Drive performance improvements across applications
• Maintain backend-for-frontend services that support multiple product teams
• Produce high-quality, well-tested code and clear architecture documentation
• Mentor engineers across teams through code review, documentation, and establishing best practices

Benefits

• Company-paid medical, dental, and vision for employees and dependents
• Wellness offerings including a partnership with Equinox Fitness Clubs
• 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