Technical performance engineering and Core Web Vitals optimization for comoimportarmicoche.es.

Achieved 92+ performance scores on mobile alongside 100/100 ratings in SEO, Best Practices, and Accessibility on a live production WordPress site by streamlining front-end asset delivery and eliminating backend execution bottlenecks.

Key Engineering Highlights: • Asset Optimization: Minified, combined, and deferred non-critical CSS/JS, significantly reducing render-blocking resources and critical path latency. • Next-Gen Media Pipeline: Implemented WebP image conversion, explicit aspect ratio dimensions to eliminate Cumulative Layout Shift (CLS), and native lazy-loading. • Clean Architecture: Optimized dynamic database queries and custom PHP scripts to maintain near-instant Server Response Time (TTFB) without relying on heavy caching plugins. • Core Web Vitals Targets: Focused on Largest Contentful Paint (LCP) and Interaction to Next Paint (INP) to deliver sub-1.5s real-world loading times on mobile devices.

Yeah, this was a cold run in PSI. The DB cleanup was actually huge for TTFB—dropped uncached server response under 200ms, mostly by clearing bloated wp_options and fixing custom loops. Caching handles repeat hits, but the backend fix was the main win.

A website for KRAYS, a group of construction companies with 20 years on the market and around 30 completed projects across residential, commercial and administrative real estate. I designed it end to end, from the hero and the main page to the project page and the mobile version, on my own system: a UI kit, layout grids, a site map, colours and type.

Building an end-to-end design system for a major construction group like KRAYS is impressive. The grid structure and layout precision reflect true architectural rigor!