Sebastian Bejarano — Frontend Engineer
7+ years crafting high-performance web applications. Astro · React · TypeScript · GraphQL. Based in Medellín, Colombia.
Definition First
Every pixel earns its place. Architecture, component design, and performance budgets are established before a single line ships.
Precision Engineering
React 19 · Astro 5 · TypeScript · GraphQL. A stack chosen for longevity, not trend-chasing.
Built to Endure
7+ years delivering production software for Bancolombia, Wompi, Banco Santander, and Archie. Quality that outlasts the sprint.
Technical
Specs
A handpicked stack refined over 7+ years across fintech, banking, and product companies. Every tool chosen for performance, scalability, and long-term maintainability.
React / Astro
19 / 5Islands Architecture · SSR · SSG
TypeScript
5.xStrict Mode · Generic Patterns
TailwindCSS
4.xCSS-First Config · Custom Tokens
GraphQL
ApolloClient · Schema Design · Mutations
Core Web Vitals
100Lighthouse · TTFB · CLS
Vite / Node
LTSCI/CD · Azure DevOps · Deployment
Archie
Software Developer
Zemsania / Santander
FullStack Developer
Tata / Bancolombia
Frontend Developer
Dentsu Creative
Frontend Developer