Sergio Santamaria

Sergio Santamaria Gabiola Senior Software Engineer | Solutions Architect | MSCS Expert in WordPress Multisite, Systems Security & High-Performance Optimization PROFESSIONAL SUMMARY Computer Science Engineer with a Master’s Degree (MSCS) and 10+ years of experience leading high-complexity digital architectures. Specialized as a "Technical Fixer" for critical infrastructures, managing massive networks, and deploying AI-driven solutions. Expert at transforming unstable systems into scalable, secure, and high-performing environments (Core Web Vitals). Proven track record of aligning technical execution with business ROI in hyper-growth startup environments. PROFESSIONAL EXPERIENCE Founder & Senior Solutions Architect | SConsulting Hub | 2023 – Present ●​ Massive Network Management: Architected and directly managed WordPress Multisite (WPMS) networks integrating thousands of individual sites under centralized governance and strict data control. ●​ Systems & Server Engineering: Advanced configuration of Linux environments (Nginx/Apache), SQL database optimization, and deployment of caching layers (Redis/Varnish) to sustain massive traffic spikes. ●​ Security & Forensic Analysis: Acted as a primary responder for compromised environments, performing deep malware removal and infrastructure hardening to ensure data sovereignty. ●​ Performance & Tech SEO: Resolved complex Core Web Vitals (LCP, CLS, INP) and Google Search Console errors at the code and server level, significantly increasing marketing ROI for enterprise clients. Lead Technical Architect | GrantSolutions (Startup) | 2022 – Present ●​ Hyper-Growth Scaling: Core founding team member (Employee #5). Responsible for designing the technical foundation that allowed the company to scale from a 5-person startup to a team of 300+ employees. ●​ 0 to 1 Product Development: Led product engineering from initial MVP to market consolidation, managing technical debt and infrastructure scalability. ●​ Technical Leadership: Acted as the "Technical Translator" for non-technical founders, turning business vision into high-quality engineering requirements. EDUCATION Master of Science in Computer Science (MSCS) Universidad Politécnica de Catalunya (UPC) | 2015 – 2017 Bachelor of Computer Science (BCompSc) | Software Engineering Universidad de Deusto | 2011 – 2015 CORE CERTIFICATIONS ●​ ●​ ●​ ●​ ●​ ●​ ●​ Claude Certified Architect (Anthropic) – AI Architecture Specialist. Professional Scrum Master I (PSM I) – Scrum.org. Linux Foundation Certified System Administrator (LFCS). GitHub Foundations – CI/CD & Workflow Management. Zoho Certified Developer – Enterprise Integrations & Deluge Scripting. SEMrush Technical SEO Specialist | Metricool Certified Specialist. Google Digital Marketing. TECHNICAL STACK ●​ Languages & Logic: JAVA (OOP), PHP (OOP), Python, SQL (Audit & Optimization), Deluge (Zoho). ●​ AI & Automation: Claude Code, Cursor, Agentic Workflows, Railway Automations. ●​ Infrastructure: Nginx, Apache, Linux Hardening, Redis, GitHub Actions (CI/CD). ●​ Specialties: WordPress Multisite, Development, Team management, DNS, Domain Mapping, MU-Plugins, Core Web Vitals, Zero-Downtime Migrations. SOFT SKILLS & LOGISTICS ●​ Executive Communication: Native Spanish, C1 Advanced English. ●​ Availability: Fully equipped for PST Overlap (California) and distributed remote environments. ●​ Compliance: Experienced in signing NDAs and following enterprise security protocols.