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Facundo Castello

Facundo Castello

Senior Full Stack Developer / Technical Leader

Santa Fe, Argentina, AR
Spanish, English

Background


About

About

Senior Full Stack Developer and former Head of Engineering with 8+ years of experience leading web and mobile product development. Specialized in React, TypeScript, and Next.js with a strong focus on SSR, performance optimization, and scalable architecture. Skilled in mentoring teams, implementing CI/CD pipelines, and delivering high-performance applications in fast-paced environments. Fluent in English and passionate about crafting elegant, robust solutions that make an impact.

Work Experience

Work Experience

  • Head of Engineering & Senior Full Stack Developer, 

    Apr, 2021 - Mar, 20253 years 11 months

    • Scaled the engineering team from 1 to 5 developers while maintaining hands-on involvement in architecture and core feature delivery

    • Architected and implemented SSR with Next.js, improving SEO and reaching a Performance score of +90

    • Built and maintained multiple production-grade platforms

    • Designed and deployed CI/CD pipelines using GitHub Actions and Vercel

    • Mentored 4 junior and mid-level engineers, conducted code reviews, and led bi-weekly architectural planning sessions

  • Semi-Senior React Developer, Making Sense LLC

    Oct, 2020 - Apr, 20216 months

    • Delivered React features for a legal tech platform, improving deposition workflows for attorneys

    • Enhanced the UI with reusable, accessible components using TypeScript and styled-components

  • Full Stack Web Developer, Folder IT

    Jun, 2018 - Oct, 20202 years 4 months

    • Led frontend and backend implementation improving UX and load times

    • Built vendor management tooling including real-time stock tracking and POS features

  • Full Stack Web Developer, Serfe

    May, 2017 - Aug, 20173 months

    • Developed a logistics management system for shipping operations using Angular and Laravel

    • Worked on fullstack projects focusing on modern web development practices

  • Full Stack Web Developer, Medytec

    Jan, 2014 - May, 20173 years 4 months

    • Developed a DICOM web Viewer

    • Architected and implemented a secure medical studies management system

    • Led the development of company website, improving lead generation

Skills

Skills

  • Frontend Development

    React.js

    TypeScript

    Next.js

    Redux/Zustand

    Tailwind CSS

    Styled-Components

    CSS-in-JS

    React Native

    Expo

  • Backend Development

    Node.js

    NestJS

    Express

    Prisma ORM

    Symfony (PHP)

    PostgreSQL

    MongoDB

    Redis

    REST

    GraphQL

    WebSockets

  • DevOps & Cloud

    GitHub Actions

    Docker

    AWS

    Vercel

    DigitalOcean

    Sentry

    Cloudflare

  • Web3 Development

    Ethers.js

    Hardhat

    Solidity

    Wagmi

    MetaMask

  • Integrations & Tools

    Stripe

    MercadoPago

    Twilio

    Agora

    Mux

    Salesforce

    Fudo

    Heap Analytics

  • Soft Skills

    Technical Leadership

    Team Mentorship

    Agile

    Architecture Design

    Communication

    Strategic Thinking

Education

Education

  • Software Engineer, Bachelor, Universidad Nacional del Litoral

    - Present

    Modern development practices

    Algorithms

    Systems architecture

Publications

Publications

  • Development of a comprehensive drone image acquisition and processing system for precision agriculture, 47 JAIIO

    Published on: Sep 01, 2018

Interests

Interests

  • Software Development

    Web DevelopmentArchitecture DesignPerformance Optimization