01 / Frontend & Creative Motion
Custom React, Next.js and Vite builds engineered for 99/100 PageSpeed, 60fps GSAP motion and zero technical debt.
WEBGPU // PARTICLES
Mario Ocampo.
I audit tech infrastructures, remove bottlenecks and ship custom code: sub-second websites, from-scratch e-commerce and AI automations that turn traffic into revenue for B2B teams across Europe and the US.
7+Years engineering
40%Faster LCP on refactors
24/7AI agents in production
Trusted by brands and organisations in Spain and the US
Full-Stack Capability Matrix.
Four engineering domains, one accountable architect. Every build is measured in load time, rankings and revenue.
02 / Technical SEO & Core Web Vitals
Crawl architecture, multilingual hreflang, advanced JSON-LD and LCP/INP optimisation to win organic search and AI answers.
03 / Enterprise CMS & E-Commerce
From-scratch WordPress themes and plugins, high-security WooCommerce and Shopify stores, and migrations off bloated templates.
04 / AI Agents & B2B Automation
Real-time Vapi voice agents, autonomous WhatsApp sales pipelines (Baileys + LLMs) and n8n/Python workflows.
From Colombia to San Francisco to the Mediterranean.
I studied in Colombia and started my career as a developer after living in San Francisco in my 20s. Today I own VestraWeb and Vestra Solutions and work from Spain and Colombia, partnering with founders and agencies across Europe and the US, in English and Spanish.
- Colombia · Universidad del Valle · SENAWhere it all began: engineering foundations and a technology degree.
- San Francisco · PlatziSoftware engineering and web development with Platzi while living in San Francisco.
- Spain · Upwork, 2018 - 2020Web developer and WordPress specialist.
- Spain · Raccoon Technologies / Deuslink, 2020 - 2022Front-end developer and UI engineer.
- VestraWeb and Vestra Solutions, 2022 - PresentMy own companies: custom websites at VestraWeb, 24/7 AI agents at Vestra Solutions.
- Spain and ColombiaToday I work from both, for clients across Europe and the US.
Owner of VestraWeb and Vestra Solutions
VestraWeb designs and builds custom websites and online stores. Vestra Solutions LLC builds AI agents, WhatsApp chatbots and automation for businesses in Spain and Latin America. I lead design, architecture and delivery at both.
7+ Years Building for Agencies & Global Brands.
-
2022 - Present
Owner, Lead Front-End & Automation Architect
Vestra Solutions / VestraWeb
-
2020 - 2022
Front-End Developer & UI Engineer
Raccoon Technologies / Deuslink
-
2018 - 2020
Web Developer & WordPress Specialist
Freelance · Upwork
Engineering Education & Certifications
-
Universidad del Valle
Higher Education
-
SENA
Technology Degree
-
Platzi
Software Engineering & Web Dev
Engineering case studies
Complex B2B Problems Solved with Custom Code.
Another WhatsApp.
And another.
The team can not keep up.
Crack.
Enter the agent.
It answers. It profiles. It closes.
Sales on autopilot.
Custom CRM & Autonomous WhatsApp AI Sales Agent
The team could not keep up with daily WhatsApp sales requests. I built a custom CRM with an admin dashboard and an LLM agent over Baileys that answers, profiles leads, closes orders in real time and syncs everything to the CRM.
ReactNode.jsBaileys WALLMCustom CRM
High-Security Custom E-Commerce & Catalog Sync
A US manufacturer needed a secure, fast store with its complex catalog synced to social media. I built it from scratch on a fully custom WordPress theme with native publishing automations.
Custom WordPressPHP 8WooCommerceSocial Sync
Real-Time AI Phone Sales & Booking
Companies needed to scale phone support and sales without call-center costs. I deployed Vapi voice agents with JSON processing that understand intent, query databases and book appointments with minimal latency.
Vapi AILLMsn8nJSON Pipelines
Automated Financial Reconciliation Dashboard
Transactions reported chaotically in WhatsApp groups required manual validation. A React/Vite dashboard now captures the data and cross-matches it against financial entities automatically.
ReactViteData GridAutomation
Production Architecture & Live Systems.
Real platforms designed and engineered end to end. Hover a card to watch the live scroll.
Hover: live scroll
AU Arquitectos
01Architectural studio digital flagship and local SEO strategy.
WordPressLocal SEOGSAP
Hover: live scroll
Mellows
02Direct-to-consumer beverage e-commerce for the US and Australian market.
WooCommerceCheckout UXUS / AU
Hover: live scroll
Jordina Arnau
03Personal brand ecosystem, online academy and lead generation funnel.
Personal BrandAcademyFunnels
Hover: live scroll
Selva de Sabores
04Gourmet tea, coffee and chocolate WooCommerce store with custom filtering.
WooCommerceCustom Filters
Hover: live scroll
Children's Relief International (CRI)
05US non-profit humanitarian donation catalog with frictionless giving UX.
US NGODonations UX
Hover: live scroll
Ball de Lletres
06Custom product e-commerce and creative lettering workshop booking portal.
WooCommerceBookings
What Clients Say After Launch.
"Working with Mario was an excellent experience. He improved both the design and functionality of our online store in WordPress and Elementor. The checkout turned out beautiful, fast and very intuitive."
Cristina
Project Manager, Remote Club
"I had the pleasure of working with Mario and he is a highly competent professional. The website he built for us turned out simply perfect. I highly recommend Mario."
Andrea De Santis
Project Manager, Wand Design
"Mario was an absolute pleasure to work with. His professionalism and attention to detail truly stood out. He went above and beyond to tackle our unique challenges with creative solutions."
Kenya M.
CEO, BlissFulVibz
-
★★★★★
"Colaboro con VestraWeb desde hace tiempo y siempre encantado con el resultado. Cuidan mucho el diseño y el SEO, responden rápido y se nota que saben lo que hacen. Sobre todo me ayudan con temas más complejos de programación y ahora con IA. Los recomiendo!"
-
★★★★★
"Todo un acierto contar con VestraWeb para mi proyecto!! Profesionalidad, atención y rapidez y muy muy buen servicio."
Javier Muñoz · Siete Mandarinas
-
★★★★★
"Empresa seria y de confianza. Son muy buenos y cercanos."
Julian Diaz · JMJ Informática
-
★★★★★
"Buenos Programadores i excelentes profesionales en Tarragona"
Ferran · Jo Brand Comunicació
-
★★★★★
"Les he pedido hacer una página web de blogs y me la han dejado excelente! Con un excelente posicionamiento y desarrollo de la web. Recomendados!"
-
★★★★★
"Recomiendo mucho vuestro servicio ya que Está muy claro el servicio como SEO, y mi Página web ha quedado como esperaba! A tiempo y económico, gracias por todo"
Google review of VestraWeb, the studio owned by Mario Ocampo. Original text in Spanish.
Technical Architecture & Advisory FAQ.
What tech stack does Mario Ocampo specialize in?
React, Next.js, Vite, JavaScript (ES6+), Tailwind CSS, GSAP for 60fps motion, Node.js, Python, PHP and SQL, plus custom WordPress, WooCommerce and Shopify architectures and AI automation with Vapi, LLMs and n8n.
Where is Mario Ocampo based and does he work with international clients?
He works from Spain (Tarragona and Barcelona) and Colombia, and owns VestraWeb and Vestra Solutions. He works remotely with agencies, startups and companies across the European Union, the UK, the United States and Latin America, in English and Spanish.
How does he guarantee sub-second loading and top Core Web Vitals?
By removing page-builder bloat, engineering clean semantic markup, serving WebP assets with explicit dimensions, caching aggressively and restricting motion to GPU-accelerated transform and opacity. On legacy refactors he has cut LCP by over 40%.
Is he available for B2B consulting, agency white-label work or senior contracts?
Yes. Mario takes on select architecture mandates, high-conversion custom builds, technical SEO and performance audits, and senior front-end consulting. Write to hello@mariodev.eu.
Same person. Every style.
- Every pixel.
- Every story.
- Every line of code.
Start a conversation
Ready to Architect Your Next Digital Platform?
Tell me what is slowing you down. You will get a technical answer within 24 hours, not a sales script.