Senior Front End Developer

Company Description Hi there! We’re Razorfish. We’ve been leading the marketing industry with our digital expertise since the start of the internet. But in 2020, we did a full reboot. What’s different? It all starts with people. Weird, wonderful, complex people - with diverse backgrounds in strategy, creative and technology. But no matter how different we are, we all have one thing in common. We believe our differences are our strength. So we push for inclusion, challenge convention and bring in new perspectives, to inspire new ideas. Because when we connect by understanding what makes people different, we can create unforgettable experiences that enrich lives. Join us at razorfish.com. Job Description Build and evolve complex, high-traffic web interfaces using React 18 and TypeScript. Lead component architecture, state/data strategies, performance, accessibility, and testing across multiple surfaces. Collaborate with Design and Product to deliver polished, maintainable, and inclusive UI experiences. Mentor engineers, improve standards/tooling, and drive consistency via shared components and documentation. Qualifications Must-have TypeScript mastery: strong typing, generics, discriminated unions, utility types; enforce types across API models and components. React expertise: hooks, context, refs, Suspense, memoization, error boundaries, React 18 concurrency patterns. State and data: Redux Toolkit or Zustand for app state; data fetching/caching with TanStack Query or SWR; normalized state and cache invalidation patterns. UI architecture: component-driven design, reusable patterns, prop modeling, composition, and controlled/uncontrolled forms (React Hook Form preferred). Styling: scalable CSS strategies (CSS Modules, CSS-in-JS, or utility‑first); theming and design tokens; Storybook‑driven component development. Testing: Jest + React Testing Library for unit/integration; MSW for network mocking; Playwright or Cypress for e2e; deterministic CI runs. Performance: Core Web Vitals focus; code‑splitting, lazy loading, Suspense boundaries, virtualization, bundle analysis, and profiler‑driven fixes. Accessibility: WCAG 2.2 AA/AAA practices—semantic HTML, keyboard‑first UX, SR‑friendly patterns, contrast and focus management. Tooling and DX: modern bundlers (Vite/Webpack), linting/formatting (ESLint/Prettier), Git workflows, and solid documentation habits. Observability: actionable client‑side error reporting, logging, tracing/correlation, and user‑impact triage Nice-to-have SSR/SSG experience (e.g., Next.js) and routing best practices. Internationalization/localization and content‑driven UIs. Data visualization and map‑heavy interfaces. Monorepo or multi‑package workspace experience; CI/CD and caching strategies. GraphQL and REST integration patterns; schema‑first contracts and codegen. Experience leveraging GenAI‑powered coding assistants to enhance day‑to‑day development workflows and overall engineering productivity. Why you’ll want to work on this codebase Breadth and impact: Work across multiple user‑facing experiences with meaningful product outcomes. Strong foundations: Shared components, design tokens, and Storybook workflows that accelerate delivery and consistency. Quality‑first culture: Emphasis on testing, performance, accessibility, and maintainability at scale. Developer experience: Modern tooling, fast feedback loops, and CI‑friendly practices for productive iteration. Ownership and growth: Lead architecture, influence standards, and mentor engineers in a supportive environment. Additional Information The Power of One starts with our people! To do powerful things, we offer powerful resources. Our best‑in‑class wellness and benefits offerings include: Paid Family Care for parents and caregivers for 12 weeks or more Monetary assistance and support for Adoption, Surrogacy and Fertility Monetary assistance and support for pet adoption Employee Assistance Programs and Health/Wellness/Comfort reimbursements to help you invest in your future and work/life balance Tuition Assistance Paid time off that includes Flexible Time off Vacation, Annual Sick Days, Volunteer Days, Holiday and Identity days, and more Matching Gifts programs Flexible working arrangements ‘Work Your World’ Program encouraging employees to work from anywhere Publicis Groupe has an office for up to 6 weeks a year (based upon eligibility) Business Resource Groups that support multiple affinities and alliances The benefits offerings listed are available to eligible U.S. Based employees, are reviewed on an annual basis, and are governed by the terms of the applicable plan documents. Razorfish is an Equal Opportunity Employer. Our employment decisions are made without regard to actual or perceived race, color, ethnicity, religion, creed, sex, sexual orientation, gender, gender identity, gender expression, pregnancy, childbirth and related medical conditions, national origin, ancestry, citizenship status, age, disability, medical condition as defined by applicable state law, genetic information, marital status, military service and veteran status, or any other characteristic protected by applicable federal, state or local laws and ordinances. If you require accommodation or assistance with the application or onboarding process specifically, please contact View email address on click.appcast.io. All your information will be kept confidential according to EEO guidelines. Compensation Range: $73,150 - $96,200 annually. This is the pay range the Company believes it will pay for this position at the time of this posting. Consistent with applicable law, compensation will be determined based on the skills, qualifications, and experience of the applicant along with the requirements of the position, and the Company reserves the right to modify this pay range at any time. Temporary roles may be eligible to participate in our freelancer/temporary employee medical plan through a third‑party benefits administration system once certain criteria have been met. Temporary roles may also qualify for participation in our 401(k) plan after eligibility criteria have been met. For regular roles, the Company will offer medical coverage, dental, vision, disability, 401k, and paid time off. The Company anticipates the application deadline for this job posting will be 3/15/2026. #J-18808-Ljbffr UNAVAILABLE