Summary
Full-stack engineer with 8+ years of experience, specializing in performance optimization and SEO infrastructure across large-scale web and e-commerce platforms. Skilled in React, Next.js, Node.js, SQL databases, and AI/LLM integrations, with a track record of leading cross-functional teams, cutting load times by 25%, and scaling SEO infrastructure across 60+ sites. Seeking senior full-stack roles where deep technical ownership meets team leadership.
8+ years full-stack experience · 60+ sites scaled · 25% load time reduction · 15+ clients served
Experience
Senior Full-Stack Developer & Consultant
Freelance / Argentina (Remote)
Mar 2025 – Present
- ▸Architected and delivered a full-stack CRM dashboard for a professional services firm, integrating multiple third-party APIs and AI services; owned end-to-end architecture, iterative feature development, and client stakeholder communication.
- ▸Built and launched websites for multiple clients in the professional services space using Next.js and Strapi, managing each project from architecture through production deployment.
- ▸Improved Lighthouse scores to 90+ and reduced load times through Core Web Vitals audits and targeted optimization of legacy codebases.
- ▸Evaluated and integrated emerging tools and frameworks (including AI-assisted development workflows) accelerating delivery and reducing technical debt for clients.
Senior Full Stack Developer
HotelsAtHome / New Jersey, USA (Remote)
Aug 2023 – Feb 2025
- ▸Became the team's SEO expert, owning SEO infrastructure across 60+ e-commerce sites; Core Web Vitals audits and code reviews cut load times by 25% and drove a 10% organic traffic increase.
- ▸Led migration of a legacy ASP.NET e-commerce platform to a modern Next.js and Magento architecture, delivering required customizations and maintaining feature parity throughout the transition.
- ▸Built team-wide training resources and documentation on SEO tooling, performance patterns, and emerging frameworks; turning independent research into repeatable knowledge across the team.
Full Stack Developer
PristineShock / Rosario, Argentina (Remote)
Jun 2020 – Jul 2023
- ▸Delivered 10+ full-stack websites 20% faster than previous team benchmarks.
- ▸Architected a reusable internal MVC framework that reduced boilerplate and accelerated project setup across subsequent deliveries.
- ▸Introduced automated testing practices that halved post-deploy hotfixes and rollbacks, raising team-wide deployment confidence and enabling faster release cycles.
- ▸Led teams of 3–5 engineers to consistently deliver high-quality projects on time, mentoring junior developers through code reviews, pair programming, and hands-on technical guidance.
Web Developer
Freelance / Rosario, Argentina
Jan 2018 – May 2020
- ▸Delivered custom websites for 10+ clients, reducing time-to-launch by 20% and maintaining 95%+ uptime through proactive support.
- ▸Applied SEO and performance optimizations to achieve sub-1-second load times and improved search rankings.
- ▸Boosted client engagement and conversions by 15% through targeted third-party integrations.
Selected Projects
Personal Portfolio & Blog
https://matiasfacello.dev
Production full-stack site featuring a statically pre-rendered MDX blog, newsletter audience management, and a contact form, all backed by Next.js Server Actions, Zod validation, rate limiting, and spam protection.
Next.js 15, React 19, TypeScript, Tailwind CSS v4, Resend, shadcn/ui, Umami Analytics
Dandere - Discord Activity Bot
https://github.com/matiasfacello/dandere
Event-driven TypeScript bot with real-time processing of Discord lifecycle events (voice, streaming, disconnects), durable Prisma-backed activity logging, an admin command interface, configurable user filtering, and a full containerized deployment pipeline via Docker and CapRover.
TypeScript, Node.js, Discord.js, Prisma, Docker, CapRover
Education
Certifications & Continuous Learning
Ongoing since 2017 | 20+ completed courses. Selected highlights:
- ▸Claude Code in Action - Anthropic (2026)
- ▸Ethics in the Age of Generative AI (2025)
- ▸Coaching Your Team to Think and Act Strategically (2023)
- ▸Agile Project Management (2023)
- ▸DevOps Foundations (2022)
Universidad Nacional De Rosario
Studied Medicine
Mar 2012 – Feb 2020
Transitioned to software full-time after self-teaching web development during medical school, applying the analytical rigor and systems thinking developed in a high-stakes academic environment.
Skills
AI & Tooling
Claude Code, Microsoft Copilot, LLM APIs
Frontend
React, Next.js, TypeScript, JavaScript, Tailwind CSS, Astro, Svelte, HTML, CSS, Accessibility, shadcn/ui
Backend
Node.js, PHP, REST APIs, GraphQL, Prisma, Zod
Database
PostgreSQL, MySQL, MongoDB
Testing
Vitest, Jest (unit & integration)
DevOps & Infrastructure
Docker, AWS, CI/CD, VPS, Nginx, Apache, Git
CMS & E-commerce
WordPress, Magento, Strapi
Languages
Spanish (Native), English (Professional)