> Markdown version of [/jobs/ext/4482365-senior-frontend-engineer](https://www.wearedevelopers.com/jobs/ext/4482365-senior-frontend-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Frontend Engineer - **Company:** Recruiting from Scratch - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Salary:** $170,000.0 - $210,000.0 - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Code Review, Design of User Interfaces, Human-Computer Interaction, Next.js, Strategies of Testing, Web Analytics, Web Applications, Web Usability, Network Routers, ReactJS, Front End Software Development - **Published:** October 26, 2026 - **Apply:** https://www.careerbuilder.com/job-details/senior-frontend-engineer-san-francisco-ca--fcf489ce-ef83-43fa-a673-6b975901efe3 ## About the Role User Interface/Experience (UI/UX), User Interface/Experience (UI/UX), Funding, Web Analytics, Technical/Engineering Design, Product Design, Technical Leadership, Network Routers, JavaScript, Code Reviews, * 7+ years of experience building production web applications with a focus on frontend technologies. * Deep expertise in React and Next.js, with a strong understanding of SSR/SPA architecture. * Proven ability to lead projects end-to-end, from design through to launch and iteration. * Experience optimizing frontend performance, including improving Core Web Vitals and load times. * Strong communication skills, capable of collaborating effectively with cross-functional teams. Preferred * Experience with high-traffic consumer or marketplace products. * Background in leading frontend rewrites or significant migrations. * Familiarity with modern testing frameworks and observability tools. ## Description * Own major initiatives across high-traffic surfaces, starting with Search Results and Details, focusing on Core Web Vitals, SEO, and conversion metrics. * Lead technical design for large changes, driving alignment with Product and Design teams, while making pragmatic trade-offs. * Define and implement reusable patterns within a Next.js App Router codebase, including routing, data fetching, and component architecture. * Raise the quality bar through code reviews and mentorship, helping junior engineers level up quickly. * Improve developer velocity by shaping tooling and practices, including testing strategies and observability metrics.