Hans Christopher Raddatz García

Technical Consulting That Gets Results

Practical help with AI integration, legacy modernization, and complex engineering projects

8+

Years Engineering Experience

400K+

Users Served (MegaGO platform)

4+

Legacy proyects adding AI Integrations

3+

Industries Transformed

Common Technical Challenges I Can Help With

Many engineering and non-engineering teams struggle to create or improve existing systems without an a extensive hastle or loong palnnings that goes nowhere. I’m the consultant who can roll up my sleeves, quickly understand your environment, and deliver practical solutions that fit your timeline and budget.

AI Integration

I help teams safely add AI features to existing applications — keeping what works while delivering new capabilities.

Legacy System Modernization

I clean up and modernize older codebases so they’re easier to maintain and scale, with minimal disruption.

Hands-on Technical Delivery

I jump into projects as a senior engineer or tech lead to deliver specific features, integrations, or improvements quickly.

Recent Projects

MegaGO Payment Platform

Role: Full-Stack Developer & Technical Lead
Challenge: Enterprise platform with 400K+ subscribers needed robust payment processing, subscription management, and ERP integration.
Approach: Built backend/frontend for all payment operations, integrated with Keycloak for authentication, designed Odoo ERP integration, implemented custom cron systems.
Results: Became primary developer and teacher for other team members; system handles all subscription billing, plan changes, and financial reporting.

Ophir Solutions Physical Access Control

Role: Tech Lead & Full-Stack Developer
Challenge: Startup needed complete physical access control solution with custom hardware and software.
Approach: End-to-end solution: ESP32-based hardware with custom 3D-printed housing, REST API with PostgreSQL/Prisma/TypeScript, custom OAuth2 JWT system, Next.js web interface.
Results: Delivered complete product from design to deployment.

Let’s Talk About Your Project

I’m happy to hop on a quick call to see how I can help

I personally respond to all inquiries within 48 hours — no automated gatekeepers.