Full‑stack Ruby on Rails developer with experience building robust applications, custom CMS systems, and modern web platforms. Specialized in monoliths with clean architecture, real-time features, and API integrations. Co-founder with a track record of launching products from zero to production.
Experience
Autobutler
Software Developer
Copenhagen • June 2021 - PRESENT
Full Stack Ruby on Rails developer on multiple projects.
- Built multiple features for Ruby on Rails monolith
- Re-built custom built CMS, including re-building ruby code for many components and re-styling them using Tailwind CSS library
- Expanded on existing React SPA and REST API
MIX IT ApS
Co-Founder and Software Developer
Jan 2019 - Sep 2021
Co-Founded a startup to build a fully functioning mobile ordering and POS (Point of Sale) solution which we named Adea.
- Built browser-based POS in Rails + AngularJS, with heavy focus on real time connections through websockets
- Launched mobile ordering app & PWA with Ionic Framework
- Had a few clients, but shut down the company as we didn't see enough traction
Projects & Products
NordiumLabs
Co-founded software agency with Marcus Wilstrup. Delivering tailored software solutions to clients, specializing in Ruby on Rails development and modern web applications.
Co-FounderSide Projects & SaaS Products
- sammenlignkoereskoler.dk — Danish driving school comparison platform with automated data aggregation using AI
- robinsonlistenapi.dk — Danish-market API to check marketing protection status (Robinsonlisten) for GDPR compliance
- akia.io — SaaS that captures and analyzes competitors' emails for market intelligence
- content-atlas.com — AI-powered content orchestration platform that transforms single ideas into platform-specific content
Skills
Languages & Frameworks
Databases
Infrastructure
Frontend
Languages
🇩🇰 Danish
Native
🇬🇧 English
Fluent
Contact
Info
Copenhagen, Denmark
Danish Nationality
Last updated: November 2025 • [email protected] • linkedin.com/in/madsharretche