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Who you'll work with

We take projects end to end, from the first idea to production. You work directly with the people building your software, with no layers of middlemen and no unnecessary handoffs.

We keep the team small and bring in trusted specialists when the project calls for it. That means senior attention without the heavy structure of a large agency.

Based in Córdoba, Argentina, working with teams across the US, Canada, and Europe. We build custom software and automations for businesses whose operations have outgrown spreadsheets and manual processes.

Years building
4+
Case studies
20+
US · Canada · Europe · Latin America
Global
Franco Seiler

Experience

Corporate-grade experience, now at the service of your projects.

Full Stack Developer

Freelance
March 2024 - Present
  • Design, build and ship end-to-end web platforms for startups and businesses, owning each project from first call to production.
  • Work across the full stack with React, Next.js, Node.js, Python and TypeScript, building everything from custom e-commerce and SaaS products to corporate sites.
  • Develop backends with Node.js/Express, NestJS and Python (Django, Django REST), modeling data in PostgreSQL and MySQL with Prisma, TypeORM and Sequelize.
  • Design and document REST APIs, reusable component libraries and design systems with SCSS and Tailwind CSS to keep delivery fast and consistent.
  • Integrate payments and third-party services: Mercado Pago and Stripe (subscriptions, webhooks), Google OAuth, cloud storage (AWS S3 / GCS) and transactional email.
  • Build AI-powered features with the OpenAI API (assistants, generative content, smart automation) and architect multi-tenant, role-based platforms with secure auth (JWT, OAuth, Keycloak).
  • Provision and administer Linux (Ubuntu/Debian) VPS servers: Nginx reverse proxy, SSL with Let's Encrypt, PM2/Gunicorn, firewall (UFW) and SSH hardening.
  • Set up Docker deployments and CI/CD pipelines (GitHub Actions) with automated tests, zero-downtime releases, and ongoing maintenance, performance tuning and SEO.
  • Lead technical planning, database modeling and architecture decisions directly with clients, translating business goals into scalable systems.
  • React
  • Next.js
  • Node.js
  • Python
  • Django
  • NestJS
  • TypeScript
  • PostgreSQL
  • MySQL
  • Prisma
  • Docker
  • Linux
  • Nginx
  • VPS
  • Stripe
  • OpenAI API

Tools

Frontend

JavaScript
TypeScript
React
Next.js
Redux
Sass
Tailwind
React Query
Brand Framer Motion Streamline Icon: https://streamlinehq.comFramer M
HTML5
CSS3
Bootstrap

Backend

Python
Node.js
Express
Nest.js
FastAPI
GraphQL
Sequelize
MongoDB
PostgreSQL
MySQL
Redis
Airtable

Tools

Git
Docker
Wordpress
Figma
Jest
N8N
Cypress Icon Streamline Icon: https://streamlinehq.comCypress
AWS