// About me
Diego Fernando Pérez C.
Systems Engineer with 6+ years building complete products — Angular interfaces, NestJS and Go services, and databases that don't surprise you in production.
6+
years of experience
5
companies
3
stacks mastered
1
published paper
// Background
I started with the MEAN stack, moved through Angular microfrontends with Spring Boot APIs, integrated legal systems with NestJS, and today I build Go services. Frontend has always kept me engaged — there's something satisfying about seeing the result immediately — but backend is where I spend most of my time and feel most at home.
That path wasn't planned. Every new project put me in front of something I didn't know how to do, and that forced me to learn. The same happened with my thesis: it started as an academic requirement and ended up published as an international paper.
That pattern keeps repeating: the projects that seem simple are the ones that have taught me the most.
// 01
Experience
Senior Back-end Developer
· DropiApril 2025 — present
Development and maintenance of back-end services in Go and Laravel. BFF with NestJS, PostgreSQL database. Involved in integrations with external platforms (Shopify, Tienda Nube) and occasional full-stack work in Angular and React as needed.
Software Engineer
· Alexandra Lozano Immigration LawApril 2024 — March 2025
Development of responsive web applications, server logic with NestJS and SQL Server database management.
Software Development Engineer
· DreamCode SoftwareSeptember 2021 — April 2024
Full-stack development with Angular (Microfrontends) and Spring Boot (Microservices). Database design and API management with AWS API Gateway.
R&D Software Engineer
· Axede S.A.S.February 2021 — September 2021
Technology research and development in Python, C++ and JavaScript. SQLite and MongoDB database management.
Software Development Engineer
· QW HealthNovember 2019 — February 2021
Full-stack development with the MEAN stack. Project lead and responsible for product deployment and updates.
// 02
Education
Systems Engineering
Universidad Santiago de Cali · 2016 — 2022
Thesis: mobile app for indoor campus navigation using Google Maps and static routes. Over 5,000 downloads across Android and iOS.
↗ Published paper: Development and Impact of a Mobile Application that Allows Users to Track Their Location on an Educational Institution CampusWant to work together or just learn more?