[Remote] Senior Frontend Engineer

Note: The job is a remote job and is open to candidates in USA. Dentsu International Americas, LLC is seeking a Senior Frontend Engineer with expertise in JavaScript/TypeScript, Next.js, and React.js to join their engineering team. The role involves developing high-performance web applications, implementing responsive UI components, and collaborating with designers and engineers to enhance user experiences.ResponsibilitiesDevelop & maintain high-performance web applications using Next.js, React, and TypeScriptImplement responsive, pixel-perfect UI components based on design system guidelinesIntegrate APIs (REST, GraphQL) and optimize CRUD operations for performance and scalabilityWork with headless CMS platforms (e.g., Contentful) for content management and personalizationEnsure cross-browser compatibility, web accessibility (WCAG standards), and SEO best practicesCollaborate with UI/UX designers, backend engineers, and product teams to build intuitive, frictionless experiencesOptimize performance through Lighthouse audits, caching strategies, and Core Web Vitals improvementsWrite clean, well-documented, and testable code, following modern best practicesConduct code reviews, contribute to technical discussions, and mentor junior developersWork in an Agile/Scrum environment, contributing to sprint planning, retrospectives, and stand-upsSkills5+ years of front-end development experience focusing on JavaScript/TypeScript3+ years of hands-on experience with Next.js and React.js in productionAdvanced CSS skills, including CSS Modules, SCSS, PostCSS, and responsive design principlesAPI Integration & CRUD Operations: Expertise in RESTful APIs and GraphQLHeadless CMS Experience: Strong background in Sitecore, Contentful, Optimizely, Sanity, or similar CMS platformsWeb Performance & Optimization: Experience with Lighthouse, Core Web Vitals, caching strategies, and performance monitoringTesting & QA: Proficiency in Jest, Cypress, Playwright, and UI testing strategiesVersion Control & CI/CD: Experience with Git (GitHub/GitLab/Bitbucket), automated testing, and cloud deployments (Vercel, AWS, Netlify, or Cloudflare Pages)Design Systems: Experience with Storybook, Material UI, TailwindCSS, or Radix UIBenefitsMedical, vision, and dental insurance,Life insurance,Short-term and long-term disability insurance,401k,Flexible paid time off,At least 15 paid holidays per year,Paid sick and safe leave, andPaid parental leave.Company OverviewWe are dentsu. It was founded in 1968, and is headquartered in London, England, GBR, with a workforce of 10001+ employees. Its website is https://www.dentsu.com.