Sr Frontend Developer

Role SummaryEmpathy Engines LLC is looking for a hands-on Senior Frontend Engineer to own a large production Next.js codebase and raise it to a senior-level maintainability standard. This role is focused on frontend stabilization while continuing feature delivery.Title: Senior Frontend Engineer (React/Next.js)Type: Full-timeLocation: Remote Team: Product EngineeringReports to: CTO / Head of EngineeringWhat You Will OwnStabilize and harden a complex React/Next.js frontend using Redux Toolkit and TypeScript.Reduce regression risk by improving architecture, typing, test coverage, and CI quality gates.Standardize UI patterns and component usage across a mixed-library codebase.Mentor engineers and enforce maintainable frontend practices through code reviews and standards.Core ResponsibilitiesOwn frontend architecture decisions and implementation quality.Refactor legacy areas while preserving product momentum.Partner with product/design/backend to deliver high-quality UX.Implement and maintain CI checks, testing strategy, and coding standards.Drive performance, accessibility, and maintainability improvements.Must-Have Qualifications5-10 years in frontend engineering, including 4+ years owning React/Next.js applications. Deep TypeScript experience in large codebases.Strong Redux Toolkit/state architecture experience.Proven history stabilizing/refactoring complex frontend systems. Strong testing practice with Jest/RTL and E2E frameworks (Cypress/Playwright).Strong SSR/client boundary knowledge in modern Next.js apps.Excellent code review discipline and pragmatic engineering judgment.Nice-to-HaveExperience consolidating multiple UI libraries into a coherent design system.Experience in SaaS admin dashboards and form-heavy workflows.Exposure to i18n-heavy applications.Experience in nonprofit, fintech, or donation/payment workflows.How to ApplySend resume + LinkedIn/GitHub + short note with:A frontend stabilization/refactor you led.What changed technically and what outcomes improved.

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