Staff Frontend Engineer

Responsibilities Own and evolve Monstro’s frontend architecture across application structure, component architecture, state and data management, navigation, API integration, performance, build tooling, and developer experience. Remain hands-on building complex, responsive, accessible, and high-quality product experiences in React. Define scalable reusable component systems, theming, configuration, and potentially embeddable or customer-adapted UI patterns. Own frontend quality strategy across unit, integration, and end-to-end testing, including automated checks, static analysis, observability, and engineering guardrails. Lead architectural changes from technical strategy and proofs of concept through consensus, implementation, and adoption. Establish AI-assisted development workflows, standards, context, and guardrails using emerging tools. Mentor engineers through code reviews, documentation, pairing, tooling, and technical leadership. Collaborate with product, design, backend, and platform teams on UX decisions, API contracts, system boundaries, and scalable product architecture. Requirements Significant professional frontend engineering experience with demonstrated Staff, Principal, Lead, or equivalent technical scope. Deep expertise in React and TypeScript and experience architecting and shipping complex production web applications. Experience serving as a frontend technical authority by defining architecture, standards, and practices used by multiple engineers or teams. Hands-on experience with AI-assisted software development tools and a thoughtful approach to maintaining quality and maintainability. Experience improving evolving or inconsistent frontend codebases through scalable architecture, tooling, patterns, and engineering practices. Strong experience designing reusable component systems, design systems, or shared frontend infrastructure. Deep understanding of unit, integration, and end-to-end testing and experience establishing automated quality guardrails within CI/CD. Strong knowledge of modern CSS, responsive design, performance, and accessibility standards. Experience working across frontend and backend boundaries, including API contracts, authentication, state and data management, and system integrations. Strong product and UX judgment, communication, mentorship, and ability to influence technical decisions and earn buy-in. Ability to operate with ambiguity, high ownership, and significant influence in an early-stage environment. Preferred: full-stack and backend/API development experience, including Python. Preferred: experience with configurable, themeable, white-label, or embeddable UI/component systems; early-stage or rapidly evolving products; fintech or regulated industries; and AI-native engineering practices. Benefits Competitive cash compensation and meaningful equity. 100% employer-paid medical, dental, and vision coverage. Disability coverage, flexible PTO, paid parental leave, and catered meals. In-person role in New York City at The Spiral in Hudson Yards, with four days per week in the office. #J-18808-Ljbffr