Hello, I'm Jonathan Muller

CTO & Software Craftsman from Metz, France

Driving digital transformation through cloud-native architectures, AI integration, and cutting-edge engineering solutions.

About Me

I am a software craftsman and technology leader with over 18 years of experience building scalable systems and leading high-performing engineering teams. Currently serving as CTO at Epos Now, I lead a global team of 100 engineers, fostering a culture of integrity, respect, and technical excellence.

My journey has taken me from developing embedded systems and financial trading platforms to architecting microservices at Uber and now spearheading the modernization of enterprise ePOS systems. I am deeply invested in clean code practices, modular architecture, and automation. As a certified Scrum Master, I believe the biggest challenge in software is not technical but human—helping teams embrace change and continuous improvement.

Throughout my career, I have successfully scaled engineering organizations, migrated legacy systems to modern cloud-native architectures, and mentored countless engineers. I am passionate about breaking down monolithic dependencies, eliminating manual processes, and building systems that are both technically excellent and maintainable. My technical expertise spans from low-level C++ and Rust to modern web technologies and cloud infrastructure, always with a focus on pragmatic solutions that deliver real value.

Technologies I Work With

Frontend

React React
Vue.js Vue.js
TypeScript TypeScript
JavaScript JavaScript
Astro Astro

Mobile

Flutter Flutter
React Native React Native
App Store App Store
Play Store Play Store
In-App Purchases In-App Purchases

Cloud Native

AWS AWS
Terraform Terraform
Docker Docker
Kubernetes Kubernetes
CI/CD CI/CD

Backend

Rust Rust
Golang Golang
Python Python
Node.js Node.js
PostgreSQL PostgreSQL

Generative AI & ML

Llama Llama
RAG RAG
Vector DB Vector DB
LangChain LangChain
Embeddings Embeddings

Featured Projects

E-Commerce Platform

A full-stack e-commerce solution with real-time inventory management and payment processing.

ReactNode.jsPostgreSQLStripe
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Task Management App

Collaborative task management tool with real-time updates and team collaboration features.

Vue.jsExpressWebSocketMongoDB
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Analytics Dashboard

Real-time analytics dashboard with data visualization and customizable reporting.

TypeScriptReactD3.jsFastAPI
View Project →

Get In Touch

Whether you have a project in mind or just want to say hello, feel free to reach out.

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