GitHub - Chrisimir/chrisimir

I build the digital infrastructure of real businesses.
E-commerce · Brand presence · Automation · Server infrastructure
Music · Real estate · Product trading · Professional services

🧭 What I Do

I'm a freelance developer and systems architect based in Madrid, Spain. Over the years I've worked across multiple industries — building and automating the digital side of businesses that needed more than just a website. I handle the full picture: architecture, build, infrastructure, integrations, automation, and ongoing delivery.

I bring a cross-industry perspective shaped by real projects in music, real estate, international product trading, and professional services — and I work fluidly in Danish, Spanish, and English.

💼 Areas of Work

🛒 E-commerce

Shopify — store builds, theme customisation, app integrations
WooCommerce and other platforms as needed
ERP/SGA API integration, order sync, SKU/EAN data pipelines
Payment gateways, shipping logic, GDPR compliance

🎵 Music & Media

Websites and digital presence for bands and artists
EPK pages, release pages, tour/event integration
Music video production and post-production
Automated publishing pipelines: YouTube, TikTok, Instagram Reels

🏘 Real Estate & Trading

Web platforms and tooling for real estate agencies
Digital infrastructure for international product trading companies
B2B portals, product catalogues, process documentation

⚙️ Process Automation

End-to-end automation for order flows, reporting, content pipelines
Python pipeline architecture with modular, platform-specific components
LLM API integration (Claude, OpenAI) in real production workflows
Make.com, Zapier, and custom scripting

🏗 Company Digital Structure

Full company tech stacks built from scratch — domain, hosting, email, CMS, analytics, legal compliance
VPS infrastructure via Hetzner and Vultr, managed through RunCloud
NGINX, MariaDB/MySQL, SSH hardening, Cloudflare, backup systems

🌐 Web Development

JavaScript (ES6+), Node.js, Express, Vue.js, Nuxt.js, Python
REST API design & integration
Performance optimisation (TTFB, CLS), SEO, Search Console

🤖 AI & Investigator Experience

I don't just use AI tools — I integrate them into production systems and evaluate them critically where results have real-world consequences.

Hands-on with LLM APIs (Claude, OpenAI) in live automation pipelines
Experienced in prompt engineering, structured output parsing, and model behaviour analysis
Active beta tester and evaluator of AI developer tools and consumer AI products
Grounded understanding of failure modes, data integrity risks, and compliance considerations

I'm actively interested in beta testing programmes, red-teaming initiatives, and technical investigator roles at institutions evaluating AI systems, fintech infrastructure, or digital service reliability — including Banco de España, the CNMV, and equivalent European bodies.