Johann Hernan

JavaScript Developer at Ingenia Ndos.A.S

Designed and deployed websites such as artesana-sandy.com, increasing revenue by 40% through SEO optimization and user-centered design. Implemented payment flow with database integration. Created reusable React components accelerating development by 30%.

Systems Administrator at Buenaventura District Mayor's Office

Increased public revenue by 25% by optimizing workflows with Node.js scripts. Migrated historical data to MariaDB and generated automated reports. Solved critical errors in tax software, improving system stability.

Systems Administrator at Buena Ventura District Mayor's Office

Designed and deployed websites (e.g., artesana-sandy.com), increasing revenue by 40% through SEO optimization and user-centered design. Implemented payment flow with database integration and created reusable React components that accelerated development by 30%. Technologies used included React.js, Next.js, Tailwind CSS, WordPress, and MySQL.

JavaScript Developer at Ingenia Dos S.A.S

Increased public revenue by 25% by optimizing workflows with Node.js scripts, migrating historical data to MariaDB, and generating automated reports. Solved critical errors in tax software, improving system stability. Technologies used included Node.js, MariaDB, Astro, and tax system software.

Frontend Developer / JavaScript Developer at Buenaventura District Mayor's Office

Designed and deployed dynamic, SEO-optimized interfaces using React.js, Next.js, Tailwind CSS; created reusable React components accelerating development by 30%.

Frontend Developer at CORREA

Frontend development with React.js, Next.js, Astro, Tailwind CSS, Styled Components, Framer Motion, and WordPress; migrated historical data to MariaDB and generated automated reports; improved revenue flow by 25% and resolved critical errors in tax software, improving system stability.

JavaScript Developer at Buenaventura District Mayor's Office

Frontend development using React.js, Next.js, Astro; SEO-optimized interfaces; SQL/NoSQL database integration; created reusable React components accelerating development by 30%.

Systems administrator role during 2018-2020.

Systems Administrator at Mayor's Office

Designed and deployed websites using React.js, Next.js, Astro, Tailwind CSS, Styled Components and Framer Motion; implemented SEO optimization and user-centered design; developed payment flow with database integration; created reusable React components to accelerate development.