Job Description As part of the Site Reliability Engineering (SRE) team, the Page Performance Engineer is responsible for improving frontend performance across our eCommerce platform by optimizing Core Web Vitals, identifying performance bottlenecks, and driving performance best practices across engineering teams.

Key Responsibilities

• Analyze and improve website performance using Core Web Vitals (LCP, INP, CLS).
• Investigate rendering, JavaScript, network, caching, image, and browser performance issues.
• Perform audits using Lighthouse, Chrome DevTools, WebPageTest, PageSpeed Insights, CrUX, andRUM tools.
• Partner with React.js and Next.js teams to optimize rendering, bundle size, code splitting, caching,and asset delivery.
• Benchmark performance against leading eCommerce websites and recommend industry bestpractices.
• Define performance standards, monitor regressions, and establish performance governance.
• Collaborate with SRE, Product, UX, SEO, Architecture, and Engineering teams to embedperformance into the SDLC.
• Present actionable recommendations and mentor teams on frontend performance best practices. Skills and Requirements
• 8+ years of frontend engineering experience with 3+ years in web performance optimization.
• Expertise in React.js, Next.js, JavaScript/TypeScript, HTML5, and CSS3.
• Strong understanding of browser rendering, Core Web Vitals, networking, caching, CDNoptimization, and HTTP protocols.
• Experience with Lighthouse, Chrome DevTools, WebPageTest, PageSpeed Insights, CrUX, RUM,mPulse, or Dynatrace.
• Excellent analytical, troubleshooting, collaboration, and communication skills.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal employment opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment without regard to race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request to HR@insightglobal.com.