DAVID
ALVARADO
Full-stack development with security baked in from day one. I build robust apps — then audit them so they stay that way.
SERVICES
Services
From pixel-perfect frontends to hardened backends — built right the first time.
Frontend Development
SPAs, dashboards, landing pages and admin panels. Fast, accessible and pixel-perfect interfaces.
Backend & APIs
REST and GraphQL APIs, microservices, authentication systems and database design at scale.
DevOps & Cloud
CI/CD pipelines, Docker containerization, AWS infrastructure and Nginx/Cloudflare configuration.
Security Audit
Full web application pentesting following OWASP Top 10. Detailed vulnerability report with remediation steps.
Security Consulting
Security built into the dev process — not bolted on. Threat modeling, code review, hardening and AppSec training for your team.
PROCESS
How I Work
A clear process from kickoff to production.
Discovery
Scope, goals and tech requirements defined.
Design
Architecture, wireframes and tech stack choice.
Build
Iterative dev with weekly demos and feedback.
Audit
Security review before any deploy goes live.
Deploy
Production deploy + handoff + ongoing support.
PROJECTS
Projects
A selection of open-source work — more on GitHub.
Angular-countries
App Angular 14 para explorar países del mundo — dashboard de estadísticas, buscador con filtros por región, favoritos y perfil de usuario. REST Countries API v3.1.
Angular 14 · REST Countries API · Tailwind CSS · SPA
Sistema-Gestion-Interna
Sistema de gestión interna para la Gobernación del Guayas — colegios, luminarias CNEL, encuentros ciudadanos, trabajadores y roles de usuario.
PHP MVC · Bootstrap · MariaDB · MySQL
javaQuiz-zustand
Quiz interactivo de JavaScript con React (TS) + Zustand para gestión de estado, UI con MUI y bundled con Vite 6.
React · Zustand · MUI · Vite
Full-stack-project
Ingreso y gestión de facturas — aplicación fullstack TypeScript.
TypeScript · Node.js · Fullstack
Microservice-B2b
Arquitectura de microservicios B2B con comunicación entre servicios, autenticación y API Gateway.
Node.js · Microservices · B2B
C-.net
Código y ejercicios en C# con .NET. Backend development, APIs y fundamentos de la plataforma Microsoft.
C# · .NET · Backend · REST APIs
SECURITY
Security Labs
Hands-on security projects — from recon scripts to OWASP walkthroughs.
Python Security Toolkit
PYTHON · RECONOWASP Top 10 Lab
NODE.JS · APPSECWeb Pentest Notes
DOCS · METHODOLOGYNeed a Security Audit?
I test your app before attackers do. Full OWASP-based pentest with a clear remediation report.
TESTIMONIALS
Client Feedback
What people say about working with me.
David delivered a secure, production-ready API in record time. He also flagged two security issues we hadn't noticed — incredibly valuable.
The security audit found critical vulnerabilities before launch. The remediation report was clear and actionable — saved us from a disaster.
React frontend + NestJS backend delivered on schedule. Code quality and documentation made it easy for our team to take over.
CONTACT
Get In Touch
Have a project in mind? Let's talk.