
Freelance Developer &
Creative Technologist
Native Performance, Single Codebase
Cross-Platform App Development
From Idea to App Store
Your Vision, Powered by Flutter & Creative Tech
Architecture
Web Development
Intelligence, Operationalized
AI Integration & Development
Unreal Engine & Unity
3D Modeling, Interaction & Animation
Beyond the Standard Codebase.

As a Netherlands-based Freelance Developer & Creative Technologist, I do not simply write code; I architect digital products that solve complex business problems.
In a digital ecosystem saturated with templates and generic solutions, true differentiation requires a convergence of disciplines. I bridge the gap between the rigorous logic of software engineering and the emotive power of high-fidelity visual art.
Whether optimizing render pipelines for the Flutter Impeller Engine to ensure 60fps performance or designing Retrieval-Augmented Generation (RAG) systems that turn raw data into actionable business intelligence , my work is defined by precision, scalability, and impact.
The StefanCG Promise:
Performance First: Leveraging the latest rendering technologies for zero-latency interactions.
Visual Fidelity: Studio-grade 3D visualization using Unreal Engine 5.
Strategic Insight: CTO-level perspective on product lifecycle and scalability.
Cross-Platform App Development

Native Performance, Single Codebase. Building robust iOS and Android applications that launch instantly and scroll buttery-smooth, powered by the Impeller rendering engine to eliminate jank.
AI Integration & Development

Intelligence, Operationalized. Moving beyond chatbots to build integrated AI agents. I implement Vector Databases and LLMs to automate complex workflows and analyze proprietary data securely.
Interactive 3D & VR

| Immersive Realities. Real-time architectural visualization and product configurators that allow users to explore, customize, and interact with digital twins in high fidelity. |
Web Development

Conversion-Driven Architecture. Custom WordPress solutions optimized for Core Web Vitals , ensuring your site ranks high on Google and converts visitors into clients.
Engineering Impact: Selected Projects
- Cloud & Backend
- AI Agents & Automation
- Website development

About Stefan
Freelance Developer & Creative Technologist
From the Netherlands to the world, I partner with startups, government agencies, and enterprises to deliver digital excellence.
Location: The Netherlands
Experience: 10+ Years Development, 6+ Years Unreal Engine
Contact: hello@stefancg.com
Let’s get in touch