Portfolio · ArmotuSitio · LinkedIn
I am a backend-focused Full Stack Software Engineer based in Argentina. I build complete web products: from API design, authentication, data models, and business workflows to the interfaces and delivery pipelines that make them useful in production.
My work sits at the intersection of PHP and Go backends, React and Next.js applications, and the operational concerns behind real businesses: payments, permissions, automation, observability, email, reporting, and reliable deployments.
I favor clear service boundaries, incremental delivery, and systems that remain understandable when the product, team, and data grow.
- Backend architecture, REST APIs, authentication, RBAC, and business-critical workflows.
- Full stack products, SaaS platforms, e-commerce, backoffices, and internal tools.
- Business automation with webhooks, cron jobs, n8n, queues, and third-party integrations.
- CI/CD, Docker-based delivery, cloud infrastructure, observability, and production support.
- Technical leadership through code reviews, mentoring, documentation, and developer education.
| Area | Technologies |
|---|---|
| Backend |     |
| Frontend |     |
| Data |     |
| DevOps |     |
| Tools |     |
A multilingual product and operations platform that connects lead acquisition, dynamic project briefs, client workflows, analytics, scheduling, and a secure backoffice.
- Product scope: marketing site, CRM workflows, client portal, budgets, agenda, analytics, and email.
- Engineering: modular PHP API, service and repository layers, RBAC, 2FA, audit trails, queues, and i18n.
- Stack: Next.js, React, TypeScript, PHP 8, MySQL, SMTP, n8n, and GitHub Actions.
An end-to-end commerce platform for a real retail brand, covering the customer storefront, operations, payments, fulfillment, loyalty, and post-sale communication.
- Product scope: catalog, cart, orders, customer accounts, promotions, loyalty, and admin dashboards.
- Integrations: Mercado Pago, payment webhooks, shipping flows, SMTP, and IMAP email operations.
- Stack: Next.js, React, PHP 8, MySQL, Mercado Pago, and GitHub Actions.
A Go service architecture for authentication and high-volume traffic protection, designed around explicit security controls, multiple persistence strategies, and production observability.
- Backend: JWT authentication, role-based access, concurrency controls, detection, and mitigation.
- Operations: structured logs, Prometheus metrics, Redis-backed coordination, and containerized delivery.
- Stack: Go, PostgreSQL, MongoDB, Firestore, Redis, Docker, Terraform, GKE, and Prometheus.
A public PHP REST API that demonstrates layered backend design for a product catalog and administration system, including authentication, authorization, filtering, and database-focused delivery.
- Architecture: routers, controllers, services, repositories, middleware, and explicit response helpers.
- Capabilities: JWT authentication, RBAC, product and category management, search, filters, and pagination.
- Stack: PHP 8, MySQL, PDO, JWT, Apache/Nginx, and Composer.
| Period | Role and impact |
|---|---|
| 2019 — present | Founder and Product Engineer, ArmotuSitio — end-to-end web products, e-commerce, backoffices, automation, performance, and client delivery. |
| 2022 — present | Technical Instructor, Coderhouse — web and backend education, mentoring, code review, and practical engineering standards. |
| 2024 — 2025 | Backend and Cloud Lead, Zelcar Games — Go and PHP services, GKE, Redis, PostgreSQL, CI/CD, observability, and technical leadership. |
| Current focus | Senior backend architecture, full stack product delivery, business platforms, and reliable cloud operations. |
| Principle | What it means in practice |
|---|---|
| Production first | Failure paths, permissions, data integrity, logging, and deployment are part of the feature. |
| Clear boundaries | Controllers stay thin; services own business rules; repositories own persistence. |
| Incremental delivery | Small, backward-compatible changes are easier to verify, release, and operate. |
| Product thinking | Architecture decisions connect to the customer, operator, and business outcome. |
I am open to senior engineering, backend, full stack, technical leadership, and product consulting work.
