Oscar Cornejo
Senior Front End Software Engineer at Falabella Financiero
Santiago, Santiago Metropolitan Region, Chile
Summary
👤
Senior🎓
Top SchoolOscar Cornejo is a Senior Front End Software Engineer based in Santiago with 11 years building scalable, high-performance web applications using React.js, Next.js and Node.js. He has led front-end teams and migrations at companies like Falabella Financiero and Mercado Libre, focusing on reusable component architecture, state management (Redux/Context/Zustand) and TypeScript-backed testing with Jest and Testing Library. Comfortable across the full stack, he designs robust RESTful APIs and works with both SQL and NoSQL databases while emphasizing responsive UX and maintainable codebases. Founder of the Front End Chile community, he pairs hands-on delivery with mentorship and process improvements that boost team velocity and code quality. Known for a strong JavaScript passion—“JavaScript saved my life!”—he combines practical product experience in finance and ad tech with a background in design and crossmedia, which helps him bridge UX and engineering trade-offs.
11 years of coding experience
9 years of employment as a software developer
Curso AngularJS, Desarrollo de aplicaciones web, Curso AngularJS, Desarrollo de aplicaciones web at ChileFormaAnalista Programador, Computer Programming, Analista Programador, Computer Programming at INACAPCurso Reactjs, Web/Multimedia Management and Webmaster, Curso Reactjs, Web/Multimedia Management and Webmaster at CoderhousePublicidad, Director de Arte, Publicidad, Director de Arte at Instituto Profesional Los LeonesCurso Desarrollo con NodeJS, Web/Multimedia Management and Webmaster, Curso Desarrollo con NodeJS, Web/Multimedia Management and Webmaster at Centro de e-Learning UTN FRBACurso de PhoneGap, Desarrollo de aplicaciones web, Curso de PhoneGap, Desarrollo de aplicaciones web at En1MesCurso Diseño y Desarrollo Web, Diseño y Desarrollo Web, Curso Diseño y Desarrollo Web, Diseño y Desarrollo Web at Universidad Finis TerraeDiplomado Crossmedia, Diseño Gráfico Digital - Desarrollo Web - Audio Visual, Diplomado Crossmedia, Diseño Gráfico Digital - Desarrollo Web - Audio Visual at Instituto Profesional ARCOSCurso Angular, Desarrollo Front End con Angular, Curso Angular, Desarrollo Front End con Angular at Desafio LatamPostítulo - Creación y Desarrollo de Sitios Web, Desarrollador Web, Postítulo - Creación y Desarrollo de Sitios Web, Desarrollador Web at Universidad del Pacífico (CL)
English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (108)
zero-configuration10
developer-tools10
cross-platform10
android10
mobile10
ios10
react-native10
create-react-app10
react10
app-framework9
mobile-development9
styled-components9
windows9
google-maps9
desktop9
Programming languages (8)
Github contributions (5)
oscarcornejo/twitter-bot
May 2017 - May 2017
Bot para retuitear en Twitter
Contributions:17 commits, 11 pushes, 1 branch in 1 day
twitter-botbottwitter-apitwitter
oscarcornejo/oscarcornejo
Jul 2020 - Feb 2023
Contributions:3 pushes, 1 branch in 2 years 7 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.