Alex Caumartin
Full stack developer specializing in distributed systems, accelerated by AI tooling.
About
I've spent the last 10+ years building production systems — from early-stage startups through to scale. I co-founded RubberDuck, a multi-tenant SaaS CMS that grew to over 800 clients and a 25-person engineering team.
Today I'm a Full Stack Developer at Soumission Rénovation, a platform that connects homeowners with verified, licensed contractors for renovation projects. I work across the stack — from distributed-systems architecture to day-to-day feature delivery — and use AI tools to work faster without cutting corners.
Services
Backend Development
Design and build reliable, well-tested backend systems and APIs.
AI Implementation
Integrate LLMs and AI features into real products, from prototype to production.
Technical Consulting
Advise on architecture, scaling, and technical decisions before you commit.
Database Optimization
Diagnose slow queries and tune schemas for performance at scale.
API Development
Build clean, documented APIs that are easy to integrate and maintain.
MCP Integration
Connect tools and data sources to AI agents using the Model Context Protocol.
How it works
Discovery call
A short call to understand what you need and whether it's a fit.
Scope
A clear proposal: what gets built, timeline, and cost.
Build
Regular check-ins as the work progresses, no black boxes.
Handoff
Working software, documentation, and a clean handoff to your team.
Get in touch
Coming soon — backend in progress.