Johnatan Botero

Designed, built, and operate a production travel eSIM SaaS platform covering 219 countries, with a Next.js web app, Node.js/GraphQL services, and React Native mobile app. Built a four-tier pricing engine and runs production observability and analytics.

Owns frontend architecture and engineering standards across Modak's platforms, including a React Native app, React web app, and React back office. Led a performance refactor that improved app load speed by 40%+ and architected a centralized RTK Query data layer.

Led a 15+ engineer, multi-squad organization with responsibility across all frontend platforms, owning technical execution, delivery planning, and engineer development. Set project priorities with stakeholders and acted as the bridge between product and engineering.

Built the product's technical foundation and owned its full-stack architecture for seven years, including React Native app, Node.js/GraphQL back end, and React admin panel. Scaled to ~100K users and was featured as App Store App of the Day.

Made key technology decisions and introduced performance-focused processes that improved scalability, reduced defect reports, and increased user engagement. Promoted to Engineering Manager within 12 months.

Led product optimization for a daily fantasy sports platform with 50,000+ active users, improving prediction submission speed by 30% and reducing app crashes by 15%.

Extended a white-label React Native platform serving 20+ clients; led core React Native version upgrades and built reusable, performance-optimized components across client configurations.

Led migration of a dual native app suite to React Native, architecting a shared React data-fetching core reused across React web and React Native clients.

iOS, Android, and React Native development for an on-demand delivery product.

Led small development teams and owned technical delivery for games, advergames, mobile apps, and marketing technology.

Led small development teams and owned technical delivery for games, advergames, mobile apps, and marketing technology.

Led small development teams and owned technical delivery for games, advergames, mobile apps, and marketing technology.

Participated in a leadership development program focused on leadership skills.

Studied Comunicación y Lenguajes Audiovisuales, focusing on audiovisual communication and languages.