Web Performance Engineer
You will audit, profile, and accelerate web applications to achieve stellar Core Web Vitals and snappy response times for clients.
What you'll work with.
As a Web Performance Engineer at TheWebVale, you will analyze client web properties to eliminate rendering lag, heavy payloads, and server latency. You will optimize web software for property portals, e-commerce storefronts, and school management platforms. You will partner with frontend engineers, backend teams, and the founder to implement architectural speed improvements. In regular two-to-three week sprints, you will deliver measurable speed gains that improve conversion rates and search rankings.
Your day to day.
6 things, one at a time. Keep scrolling.
Profile web applications using Chrome DevTools, WebPageTest, and Lighthouse.
Identify and resolve render-blocking scripts, excess DOM size, and layout shifts.
Implement modern image compression, lazy loading, and responsive media formats.
Optimize JavaScript bundle sizes through on-demand imports and tree-shaking.
Configure CDN edge caching, HTTP headers, and compression algorithms.
Establish continuous performance monitoring to catch regressions before deployment.
What we look for.
6 things, one at a time. Keep scrolling.
Hold 3–5 years of web engineering experience with a deep focus on performance.
Understand browser rendering pipelines, paint phases, and compositing layers.
Demonstrate mastery of Core Web Vitals metrics including LCP, INP, and CLS.
Show practical expertise in analyzing JavaScript execution profiles and memory usage.
Possess solid working knowledge of modern build tools like Webpack, Vite, or Turbopack.
Write clear technical recommendations supported by empirical benchmark data.
What you get.
Three steps, no tricks.
- 1
Intro chat
A short call about what you want to work on and how you like to work.
- 2
Work review
Walk us through projects, code or designs you are proud of.
- 3
Paid task
A small paid task or pairing session, so both sides see the fit.
Apply for Web Performance Engineer .
Tell us about your work. We reply to every application, usually within a few days.