Rodrigo Sosa

Backend engineer · Tucumán, AR

⌘K

Backend engineer. I build services, integrations, and the infrastructure they run on: Node, Java, .NET, AWS. Four years shipping to production.

full-time at MetLife · building on the side · open to remote roles

Now

Consolidating telemedicine platforms into one regional platform at MetLife .
Learning Go on the side. Reading the standard library, mostly.

Projects

MetLife — regional telemedicine platform 2026–now Consolidating telemedicine platforms from several Latin American countries into one regional platform. AI Document Intelligence Platform 2026 Invoices and medical records: AI/OCR extraction, confidence scoring, and reviewer validation. iFlow — logistics platform 2024–26 Modernizing a legacy logistics system: 15–20K orders and 200K+ events per day. OneTree / Washington State Department of Health 2024–25 Regulatory licensing system for medical cannabis in the public sector. American Academy of Neurology 2024 Backend for a medical education mobile app, from WordPress to Node.js and Firebase. ~5K active users. Sharyco — corporate social network 2023–24 Sustainability B2B SaaS: a configurable challenge engine and automated deployments. Freelance full-stack development 2022–now Websites and landing pages for small businesses, with serverless functions for forms.

Side projects

Charlat — WhatsApp agents for businesses 2026–now A multi-tenant platform where each business gets an AI customer-service agent on its own WhatsApp number. Snake — multiplayer, with an AI player 2026–now A mini multiplayer Snake I keep polishing, with an NPC that plays by asking a model for each move. Workflow Control Plane 2026–now A CLI that dispatches AI coding agents (Pi, Claude, Codex) into isolated git worktrees. Obsidian PARA vault 2026 The Obsidian vault I use every day, shared as a template: PARA folders, dashboards, and capture flows.

Contact

Write to me about remote backend and infrastructure work.

contact@rodrigososa.com github linkedin instagram cv.pdf

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