Kevin Leiva

Senior Full-Stack Developer · Awna

• I design the architecture and build platforms for government and private companies end to end: from technical definition to deploy on AWS and running them in production.
• Online sign-up and payment with Webpay and electronic receipts, atomic seat reservation and a virtual waiting room for high-demand openings (Ñuñoa: 329 classes across 15 venues).
• At San Joaquín I merged two APIs into a single TypeScript API, with zod contracts, role-based permissions across 14 modules and tests that block the build if a route is left unguarded.
• Serverless platform for SimpleFibra's sales force, with gamification and an idempotent nightly job that scores 110 sales reps in under 4 minutes.
• GORE Valparaíso's public consultation with ClaveÚnica (OpenID Connect) and a tamper-proof record of every submission, on AWS.
• Serverless back ends (Lambda, API Gateway, Cognito) and offline-first systems, like a 4K municipal kiosk that keeps working without a network.
• Sites on headless CMSs (Sanity, Payload) so every team can publish without waiting on developers.

Full-Stack Developer · Simple Soluciones

• Lead-generation coverage-check landing page for Movistar, built in Angular.