ABRAHAM JOSE R.

Most freelancers specialize in one layer: they build the interface, or they manage the server, or they wire up integrations. I work across all of them — because I was trained to think in systems, not just in code. I'm a systems engineer with 2+ years of professional experience delivering web solutions end to end. That means I can take a project from architecture to deployment: design and build the application, configure the server it runs on, connect it to third-party platforms, and keep it stable in production. I've done this working as a contractor at Yittbox, as part of the engineering team at GoUppers, and across independent client projects. I combine a solid technical foundation with modern development tools — including AI-assisted workflows — to solve problems faster and build things that hold up under real conditions. WHAT I'VE DELIVERED Repaired thousands of broken URLs across Pregnancy Magazine, recovering SEO value and fixing site-wide link integrity on a high-traffic editorial platform. Diagnosed and resolved a production server suffering from 64GB or more of RAM overflow caused by misconfigured Apache, PHP-FPM, and VPS settings — stabilized without data loss. Built cross-platform automation connecting WordPress, Slack, and Zapier to streamline business workflows. Designed and implemented conversion tracking and A/B testing pipelines using Google Analytics 4, Google Tag Manager, and Microsoft Clarity. Configured Stripe payment flows and checkout customizations. Resolved deep conflicts on WordPress environments running over 100 simultaneous active plugins. Improved Core Web Vitals across multiple production sites through Redis, caching layers, and asset optimization. WHAT I BUILD Web applications and platforms using React, Laravel, Node.js, PHP, and Python. REST APIs and system integrations with services like Stripe, Zapier, Slack, and Google APIs. WordPress sites with custom themes, plugins, and back-end logic. Analytics and event tracking with Google Analytics 4, Google Tag Manager, and Microsoft Clarity. A/B and multivariate testing from setup to analysis. WHAT I OPERATE AND MAINTAIN Linux server environments on Ubuntu and CentOS running Apache, Nginx, PHP-FPM, and MySQL. Cloud infrastructure on AWS and DigitalOcean. Cloudflare configuration including DNS, WAF, SSL, and caching rules. Redis, WireGuard, Certbot, and SSL setup. Root-cause diagnosis for server crashes, memory and CPU overload, and environment misconfigurations. Security hardening, automated backups, and long-term monitoring. If you need an engineer who can take technical ownership of your project — not just deliver a feature and disappear — let's talk about what you're building. Languages: Spanish (Native) · English B1 — strong written technical communication