David Maillo
Lead Frontend Developer at Square One Media
Barcelona, Catalonia, Spain
Summary
👤
Senior🎓
Top SchoolDavid Maillo is a Lead Frontend Developer with 11+ years of hands-on experience and over 14 years in web development, specializing in React, Next.js and TypeScript to build high-performance, user-centric products. He has driven frontend strategy and delivery for high-traffic consumer platforms and startups— from Series.ly and Tviso to Food2u—and led the frontend for Guud/Square One, crafting real-time social media campaign tools used by brands like Netflix, Adidas and LEGO. Comfortable bridging design and engineering, he blends UX sensibility with performance optimization and is routinely the decision-maker for architecture, risk mitigation and team mentorship. He’s taught full-stack development in an intensive bootcamp and brings entrepreneurial instincts from multiple product launches and an appetite for game development as a creative outlet. Notably, he began coding at 12 and favors end-to-end ownership: from concept and UI design to scalable frontend systems for interactive campaigns.
11 years of coding experience
10 years of employment as a software developer
Máster en Digital Product Management Gestión de proyectos, Máster en Digital Product Management Gestión de proyectos at Nuclio Digital SchoolFormación en emprendimiento Emprendimiento/Estudios sobre emprendimiento, Formación en emprendimiento Emprendimiento/Estudios sobre emprendimiento at EHUB2 Intermediate English certificate Enseñanza de inglés como lengua extranjera, B2 Intermediate English certificate Enseñanza de inglés como lengua extranjera at EOI Barcelona - Escuela Oficial de IdiomasFormación en Marketing Digital Marketing, Formación en Marketing Digital Marketing at University of ValenciaFull Stack Web Development Desarrollo de aplicaciones web, Full Stack Web Development Desarrollo de aplicaciones web at Tortuga CodersGraduate in Design Digital Media, Graduate in Design Digital Media at Universitat Ramon LlullEmprendimiento/Estudios sobre emprendimiento, Emprendimiento/Estudios sobre emprendimiento at Demium Academy
Spanish, English, Catalan
Github Skills (13)
javscript8
react-typescript6
tailwind4
react4
tailwindcss4
typescript3
oms2
computer-vision1
community-management1
python1
image-manipulation1
image-processing1
manipulation1
Programming languages (5)
Github contributions (5)
davidmaillo/instagram-images-download-extension
Jul 2016 - Jun 2020
Contributions:10 commits, 20 pushes, 1 branch in 3 years 11 months
davidmaillo/davidmaillo
Nov 2022 - Oct 2024
Contributions:20 pushes in 1 year 11 months
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