You will get 100% Green Core Web Vitals and speed optimization
Project details
MOST SEOs PROVIDE REPORTS. I PROVIDE THE CODE THAT FIXES THEM.
Is your website losing rankings because of a slow LCP or a failing INP score? In 2026, speed is not a luxury; it’s a ranking factor. As an MSCS Software Engineer, I perform Performance Engineering at the server and database levels, not just by installing another plugin.
I don't just hide problems; I eliminate them. From SQL query optimization to advanced server-side caching, I ensure your WordPress infrastructure is built for sub-second load times.
What I fix surgically:
LCP (Largest Contentful Paint): Optimizing the critical rendering path.
INP (Interaction to Next Paint): Fixing main-thread blocking and JS execution.
CLS (Cumulative Layout Shift): Stabilizing visual elements for a perfect user experience.
Server Tuning: Nginx/Apache configuration and Redis/Memcached integration.
Why trust an Architect?
I’ve architected systems for hyper-growth environments (scaling from 5 to 300+ employees). I bring that same enterprise rigor to your PageSpeed scores. Stop guessing, start engineering.
Is your website losing rankings because of a slow LCP or a failing INP score? In 2026, speed is not a luxury; it’s a ranking factor. As an MSCS Software Engineer, I perform Performance Engineering at the server and database levels, not just by installing another plugin.
I don't just hide problems; I eliminate them. From SQL query optimization to advanced server-side caching, I ensure your WordPress infrastructure is built for sub-second load times.
What I fix surgically:
LCP (Largest Contentful Paint): Optimizing the critical rendering path.
INP (Interaction to Next Paint): Fixing main-thread blocking and JS execution.
CLS (Cumulative Layout Shift): Stabilizing visual elements for a perfect user experience.
Server Tuning: Nginx/Apache configuration and Redis/Memcached integration.
Why trust an Architect?
I’ve architected systems for hyper-growth environments (scaling from 5 to 300+ employees). I bring that same enterprise rigor to your PageSpeed scores. Stop guessing, start engineering.
Website Specialization
Business, Online Communities, Blog, Portfolio, Forms, Portal, SaaS, OtherSupported Plugin Types
Social Media, Gallery, Marketing, Analytics, Events, Shipping, Payment, Form, Chat, Map, Membership, FAQ, Inventory, OtherWordPress Plugins
WordPress SEO by Yoast, WooCommerce, W3 Total Cache, All in One SEO Pack, Elementor, WP RocketWhat's included
| Service Tiers |
Starter
$100
|
Standard
$250
|
Advanced
$600
|
|---|---|---|---|
| Delivery Time | 1 day | 4 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Software Version Upgrade | - | - | - |
Browser Caching | - | - | |
Resize Photos | - | - | - |
Minification | - | - | - |
Database Optimization | - | - | - |
On-Page SEO | - | - | - |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$150 - $300
Image Optimization Workflow
(+ 1 Day)
+$100
Third-Party Script Remediation
+$150Frequently asked questions
About Sergio
Expert in WordPress Multisite Networks | Specialist Developer & SEO
Bilbao, Spain - 9:56 am local time
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Instalar WordPress es fácil; gestionar un ecosistema complejo requiere un ARQUITECTO DE SOFTWARE. Soy Consultor Técnico Senior con más de 10 años de experiencia, especializado en infraestructuras críticas, seguridad y escalabilidad masiva.
Mi enfoque es de CONSULTORÍA EXTERNA DE ALTO NIVEL: No solo "arreglo webs" (aunque lo haré encantado si lo necesitas hoy 😉), mi objetivo real es diseñar sistemas que SIMPLEMENTE NO SE ROMPAN.
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🚀 ÁREAS DE ESPECIALIZACIÓN TÉCNICA
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🔹 INGENIERÍA DE SOFTWARE DE ALTO NIVEL
Desarrollo soluciones robustas y escalables. No solo programo plugins;
construyo herramientas profesionales con código limpio y mantenible.
🔹 ARQUITECTURA MULTISITE & DOMAIN MAPPING
Configuración experta de redes y mapeo de dominios complejos
para identidades de marca totalmente independientes.
🔹 MIGRACIONES COMPLEJAS & ZERO DOWNTIME
Especialista en mover datos entre entornos Multisite y Single Site
con integridad total de la base de datos y sin caídas de servicio.
🔹 MU-PLUGINS & CORE BUG FIXING
Lógica centralizada para rendimiento extremo y resolución de conflictos
críticos en el core o plugins que otros no logran identificar.
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🔐 SEGURIDAD Y ANÁLISIS PROFUNDO (MY CORE)
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No adivino; mido. Mi proceso técnico se basa en datos reales:
✅ ANÁLISIS FORENSE Y LIMPIEZA
Limpieza profunda de malware y cierre de brechas de seguridad.
✅ AUDITORÍA DE RENDIMIENTO TÉCNICO
Análisis de querys a la BD, optimización de índices y revisión de Crons/Hooks.
✅ MONITOREO CON NEW RELIC
Análisis de tráfico y rendimiento en tiempo real para detectar fugas de memoria.
✅ HARDENING NIVEL SERVIDOR
Blindaje de wp-config, permisos de archivos y firewalls a medida.
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🏆 ¿POR QUÉ ELEGIRME COMO TU CONSULTOR EXTERNO?
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📍 +10 AÑOS DE EXPERIENCIA: Trayectoria sólida en el sector IT.
📍 VISIÓN GLOBAL (FULL-STACK): Entiendo qué pasa en el servidor,
la base de datos y el navegador de forma simultánea.
📍 COMUNICACIÓN PROFESIONAL:
▪️ Español: Nativo.
▪️ Inglés: Avanzado (C1) para reuniones técnicas o de negocio fluidas.
📍 DISPONIBILIDAD Y TRANSPARENCIA: Gestión con metodologías ágiles
y reportes técnicos claros. No doy dudas; doy soluciones.
⚠️ NOTA: Mis honorarios están bonificados por tiempo limitado al ser un perfil nuevo en Upwork. Aprovecha esta experiencia Senior antes de que la tarifa se ajuste.
💬 ¿HABLAMOS?
Haz clic en "Invite to Job" y busquemos la mejor solución para tu infraestructura.
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IS YOUR WORDPRESS MULTISITE NETWORK BECOMING A SLOW OR UNMANAGEABLE BURDEN?
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Most developers can install WordPress, but high-complexity ecosystems require a SOFTWARE ARCHITECT. I am a Senior Technical Consultant with over 10 years of experience, specializing in critical infrastructures, security, and massive scalability.
I focus on HIGH-LEVEL EXTERNAL CONSULTING: I don’t just "fix websites"—though I’ll happily do it if that’s what you need right now 😉—my real goal is to design systems that SIMPLY DON'T BREAK.
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🚀 TECHNICAL AREAS OF EXPERTISE
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🔹 HIGH-LEVEL SOFTWARE ENGINEERING
Developing robust, scalable solutions. I build professional tools
with clean and maintainable code, not just simple plugins.
🔹 MULTISITE ARCHITECTURE & DOMAIN MAPPING
Advanced network configuration and expert Domain Mapping
for independent brand identities.
🔹 SEAMLESS COMPLEX MIGRATIONS
Specialist in moving data between Multisite and Single Site
environments with zero downtime and total database integrity.
🔹 MU-PLUGINS & CORE BUG FIXING
Centralized logic for extreme performance and resolving critical
conflicts that other developers fail to identify.
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🔐 SECURITY & DEEP ANALYSIS (MY CORE)
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I don’t guess; I measure. My technical process is data-driven:
✅ FORENSIC ANALYSIS & CLEANUP
Deep file system and database analysis to eliminate malware.
✅ TECHNICAL PERFORMANCE AUDIT
DB query analysis, index optimization, and Crons/Hooks review.
✅ MONITORING WITH NEW RELIC
Real-time traffic and performance analysis to detect memory leaks.
✅ SERVER-LEVEL HARDENING
Shielding wp-config, file permissions, and custom firewalls.
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🏆 WHY CHOOSE ME AS YOUR EXTERNAL CONSULTANT?
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📍 10+ YEARS OF EXPERIENCE: Proven track record in the IT sector.
📍 360° VISION (FULL-STACK): I understand the server,
the database, and the browser simultaneously.
📍 FLUENT COMMUNICATION:
▪️ Spanish: Native.
▪️ English: Advanced (C1) for seamless technical or business meetings
Steps for completing your project
After purchasing the project, send requirements so Sergio can start the project.
Delivery time starts when Sergio receives requirements from you.
Sergio works on your project following the steps below.
Revisions may occur after the delivery date.
Baseline Benchmarking
Deep analysis of Field and Lab data using GSC, PageSpeed Insights, and GTMetrix.
Asset & Code De-bloating
Removing unused CSS/JS and optimizing the loading order of critical resources.