Software Developer · Backend · Fullstack
Agustin Sosa
I build functional, scalable solutions — from REST API design and data modeling to full-featured web applications with React and Next.js.
About
A bit about me
Developer, problem-solver, and lifelong learner.
I'm a software developer based in San Luis, Argentina, focused on backend, fullstack, and data solutions. I work with Python, FastAPI, SQL, and React to build functional and scalable applications — from REST API design to full-featured frontends with Next.js.
I graduated as a Systems Programmer from the Universidad Nacional de Villa Mercedes and I'm currently pursuing my Systems Engineering degree at the same institution. My academic background gives me a solid foundation in software architecture, data modeling, and systems design.
I have real production experience developing features, debugging, and maintaining platforms in professional environments. I adapt quickly to new technologies and contexts, and I'm driven by solving real problems with clean, well-organized code.
Education
- 2026 — Presente
Systems Engineering
Universidad Nacional de Villa Mercedes — In progress
- 2022 — 2025
Graduated — Systems Programmer
Universidad Nacional de Villa Mercedes — Graduated
Projects
Selected Work
Projects built with real technologies, focused on solving concrete problems.
Featured Project
Corporate Website — IES Desarrollos Inmobiliarios
In development · Upcoming launch
Corporate website in development for IES Desarrollos Inmobiliarios, a construction company based in Salta, Argentina. Features a multi-slide hero, a projects catalog with dynamic filters by status, slug-based detail pages, a contact form with WhatsApp integration, and Sanity headless CMS for client-managed content. Developed at Dagatek. Will soon replace the current website at iesdesarrollos.com.ar.
Website — Luso Estudio
Client · Live
First website for Luso Estudio, an Argentine creative studio focused on branding, social media, web design and audiovisual production. One-page site with an animated hero, a services list with dedicated pages per service, a featured projects gallery, a work-process section and a primary WhatsApp CTA as the conversion channel. Fully static with Next.js, self-hosted brand fonts and lightweight animations. Live at lusoestudio.com.ar.
Multi-Tenant SaaS Platform for Business Management
Own product · In development
Multi-tenant SaaS platform focused on business management for small and medium-sized businesses. Fullstack architecture with a FastAPI backend exposing REST APIs, Next.js frontend with TypeScript, and a PostgreSQL database with tenant-level data isolation. Own commercial product under active development.
Self-Service Ordering System
Web application for order management in gastronomic establishments. Operates across three interfaces: customer (browsing and placing orders), kitchen (real-time order queue for cooks), and admin (product and user management). Built with Next.js App Router, Prisma ORM, PostgreSQL, and NextAuth.js.
TuristeAR — Tourism Mobile App
Mobile app to discover tourism, cultural and food experiences across Argentina. Features highlighted activities, search and category filters, detail pages with price, duration, difficulty and direct WhatsApp contact, per-user favorites and an admin panel. Built with React Native, TypeScript, Expo and Supabase.
Skills
What I Work With
Technologies I use to build backend systems, fullstack applications, and data solutions.
Frontend
- React.js / Next.js
- React Native
- TypeScript
- TailwindCSS
- HTML5 & CSS3
- NextAuth.js
- Responsive Design
Backend
- Python / FastAPI
- Node.js / Express
- Java
- REST APIs
- Docker / Docker Compose
- Postman
- Supabase
- Sanity CMS
- Prisma ORM
Databases & Tools
- PostgreSQL
- MySQL
- MongoDB
- SQL
- Modelado de datos / DER
- Git & GitHub
Experience
Where I've Worked
Professional experience in real production environments.
Ene. 2026 — May. 2026
Software Developer
Dagatek – Software Solutions Startup
Remote freelance development for the startup's clients, on production websites and an e-commerce store.
- Built the corporate website for IES Desarrollos Inmobiliarios with Next.js, TypeScript, TailwindCSS and Sanity CMS: multi-slide hero landing, projects catalog with dynamic filters, per-project detail pages, contact form and WhatsApp integration.
- Built a new section for a production website with Next.js and TailwindCSS.
- Fixed a functional bug in a production e-commerce store that prevented loading more than 10 variants per product.
Contact
Let's Work Together
Have a project in mind or want to connect? I'd love to hear from you.