Senior Software Engineer · Technical Lead

Juan David Delgado Guzmán

Senior Software Engineer · Full Stack Developer

Senior Software Engineer and technical lead focused on building scalable, maintainable systems, from backend services and databases to AI-powered experiences. The work bridges solid engineering practices with emerging technologies to solve complex problems and deliver software that truly works.

Experience

Professional track

Full stack engineering, leadership, and AI integrations.

Senior Full Stack Developer · Technical Lead (PRMS)

Sep 2022 – Present
Alliance of Bioversity International & CIAT · Palmira

Technical lead for PRMS, a global platform enabling research centers worldwide to standardize and report results efficiently.

  • Technical lead of PRMS, a global-scale platform enabling research centers worldwide to efficiently standardize and report their results.
  • Drove Agile/Scrum delivery with Jira, coordinating closely with the Technical Manager and Insight team.
  • Kept all technical solutions aligned with strategic objectives and a global user base.
  • Led backend/frontend development, maintenance, and integrations to hit 99.9% uptime while ensuring scalability, security, and performance.
NestJSExpressJSAngularNext.jsMySQLPostgreSQLAWS (EventBridge, Lambda, OpenSearch)MicroservicesAI / LLM Integrations

Senior Back End Developer

Jun 2025 – Present
Stealth Startup

Backend lead for a mobile-first property management and reservations platform.

  • Designed scalable backend services with TypeScript and Hono, following clean architecture principles.
  • Implemented secure APIs for users, listings, reservations, and payments, including MercadoPago integration.
  • Deployed and monitored services on Cloudflare infrastructure (D1, R2) for performance and reliability.
TypeScriptHonoNode.jsMercadoPagoCloudflare D1Cloudflare R2Clean Architecture

Back End Developer

Jan 2023 – Jun 2023
Fundación SARES · Cali

Built a web-based inventory and supply management system for a non-profit organization.

  • Developed backend services with TypeScript, NestJS, and TypeORM to improve operational efficiency.
  • Designed the MySQL layer with optimized queries and strong data integrity.
  • Integrated Amazon S3 for secure, reliable asset storage and implemented CI/CD pipelines on Railway.
NestJSTypeORMMySQLAmazon S3RailwayCI/CD

Full Stack Developer

Oct 2021 – Dec 2021
AMA Publicidad

Developed a custom CRM platform with a dynamic production chart to manage customers, orders, and machinery.

  • Created a responsive UI with React and Bootstrap for streamlined workflows.
  • Implemented a REST API with Node.js and Express, backed by PostgreSQL for complex data relationships.
  • Deployed on AWS EC2 and integrated Firebase Authentication for secure access.
ReactBootstrapNode.jsExpress.jsPostgreSQLAWS EC2Firebase Auth