Senior React.js Developer

Description

Summary: Seeking a Senior React Engineer to own critical frontend experiences, collaborate closely with product and design, and scale the company to millions of users. Highlights: 1. Own critical frontend experiences and collaborate with product/design 2. Design, build, and ship high-performance, responsive web UIs 3. Raise the bar through code reviews, mentoring, and process improvements We’re looking for a **Senior React Engineer** to own critical frontend experiences, collaborate closely with product/design, and help us scale company to millions of users. What You’ll Do: * Design, build, and ship high\-performance, responsive web UIs * Partner with product managers, designers, and analysts to translate user needs into elegant product experiences * Plan and execute short\- and long\-term roadmaps balancing user impact, technical quality, and delivery speed * Raise the bar through code reviews, mentoring, and improvements to our tooling and processes Requirements: **Must\-have expertise:** * **Next.js** (our web app is built with Next.js) * **Monorepos** using **Yarn Workspaces** or **Nx** * **Tailwind CSS** (our primary design system) **Technical requirements:** * **5\+ years** of professional software development experience * **5\+ years** with **React** and its ecosystem (e.g., Redux, React Router) * Strong proficiency in **JavaScript (ES6/ES7\)** and **TypeScript** * Deep knowledge of **HTML/CSS**, responsive design, and **accessibility (a11y)** best practices * Hands\-on with modern build tooling and package managers (**Vite**, **esbuild**, **Yarn**) * Experience with **server\-side rendering** and **Next.js**, plus working knowledge of **Node.js** * Comfortable with **Git** workflows and **agile** methodologies * **3\+ years** working with major **cloud providers** (AWS/GCP/Azure) * Storybook **Nice to have:** * Experience with monorepo release management and internal package versioning * Familiarity with performance profiling, Web Vitals, and SEO in Next.js * E2E testing (Playwright/Cypress) and CI/CD pipelines * Experience in fintech or data\-heavy, real\-time UIs