💻 Senior Full Stack Developer | 🚀 Building scalable, reliable, and user-focused applications.
I'm a Full Stack Developer with 6+ years of experience delivering high-impact solutions for clients across LATAM and the USA.
- Focus: Clean, performant, and maintainable code.
- Environment: Agile (Scrum/Kanban) & distributed teams.
- Innovation: Integrating AI-powered features and modern architectures into production-ready products.
| Category | Stack |
|---|---|
| Frontend | React, Vue.js, Next.js, JavaScript (ES6+), Tailwind, PrimeVue, TanStack Query, Zustand |
| Backend | Node.js, Fastify, Express, Python (Django), PHP (CodeIgniter) |
| Databases & ORM | PostgreSQL, MySQL, MongoDB, Firebase, Prisma, Redis |
| Async & Arch. | BullMQ, Event-driven & Hexagonal architecture, CQRS |
| Cloud & DevOps | AWS (Cognito, S3, SES, Lambda, EC2), GCP, Docker, Vercel, Netlify, CI/CD |
| Testing & Tools | Vitest, Cypress, Git, GitHub, Jira, Postman |
Full Stack Developer (Backend-focused) · Apr 2026 – May 2026
Healthcare SaaS platform for clinical case management, medical documentation, and patient referrals, handling sensitive patient data (PHI). Built on a Hexagonal architecture with CQRS, an in-process event bus, and a transactional Unit of Work. One of the primary backend contributors to the project.
- Built the clinical notes (SOAP) module end-to-end: domain model, Prisma persistence, OpenAPI documentation, and unit test suite.
- Executed the full migration of the AWS integration from SDK v2 to v3 (Cognito, S3, SES) and replaced in-memory buffers with S3 file streaming.
- Implemented a Redis caching layer for analytics queries with domain-event-driven invalidation.
- Hardened backend security: mitigated SSRF, XSS, and injection vectors, and strengthened authentication and session handling.
- Frontend contributions: Document Center (file management + uploads), case archiving/restore, and CSV lead import.
- 10+ Systems Deployed: From conception to production-ready status.
- UX Optimization: Increased user engagement by 25% through performance tuning and intuitive UI.
- Efficiency: Reduced manual business tasks by 40% via custom automated workflows.
- Full Stack Developer Program – Udemy
- JavaScript Algorithms & Data Structures – freeCodeCamp
- Python for Web Development (Django) – Platzi
- Docker & Deployment Fundamentals – IBM / Coursera
- Spanish: Native
- English: Professional (C1)
- Portuguese: Conversational (B2)
- 🌐 Portfolio: ga-software.dev
- 📧 Email: guillermoandrada@gmail.com
- 💬 WhatsApp: +54 387 629 5801
✨ "Clean code, scalable solutions, and teamwork are at the core of everything I build." ✨