React UI Architect

Role Summary We are modernizing our product UI, replacing a legacy front-end with a modern React application. This effort is a full UI rewrite and redesign—focused on improving usability, maintainability, and long-term scalability—rather than a screen- for-screen conversion.We are seeking a 10+ years experienced React engineer who has architected and built enterprise React applications from scratch: defining front-end architecture, setting engineering standards, and delivering critical modules hands-on with minimal oversight. Preference for candidates who have led migrations from legacy UI stacks into modern SPA frameworks. Key Responsibilities• Own the React application architecture end-to-end: project structure, component strategy, routing approach, and front-end integration boundaries.• Define and implement engineering standards for the UI codebase: reusable component patterns, conventions, linting/formatting, PR quality bars, and documentation to keep the system maintainable and scalable.• Drive front-end decisions considering maintainability and ecosystem health (e.g., community support and update cadence were part of internal evaluation discussions).• Implement foundational UI building blocks (navigation, layout, shared components) and deliver one or more key product modules end-to-end.• Build UI components with strong accessibility practices in mind; internal discussion highlighted accessibility as a key consideration in framework choice and implementation approach. Required Qualifications• 10+ years of professional software development experience with significant front-end focus.• Deep, hands-on React experience building production-grade SPAs.• Proven experience as a hands-on technical Sr. Engineer/lead who has built an application from scratch (greenfield foundations + delivery).• Demonstrated ability to work independently with minimal oversight while driving architecture and delivery outcomes.• Preferred: Experience modernizing or migrating legacy UI stacks (e.g., older server-rendered UIs) into a modern React SPA.• Bachelor's Degree in Computer Science or Related Major• Techincal Skills· React + TypeScript expert; delivered large-scale SPAs and set coding standards· Front-end architecture for modular apps (admin/settings/case management separation)· React state management strategy and governance (consistent patterns across team)· Accessibility-first development (WCAG/ARIA/focus/keyboard; a11y testing)· Design system / component library integration; reusable, consistent UI components· UI entitlements: RBAC + feature toggles for module visibility and phased release· SPA authentication/session integration (token handling; secure flows; timeouts)· API integration patterns (BFF/aggregation/GraphQL-style thinking to reduce coupling)· Incremental modernization delivery (POCs, phased rollout, minimize disruption)· Solid foundation in working with third-party libraries (Redux, RxJS) and debugging dependency conflicts.