Hi, I'm Julian 🚀
Infrastructure engineer exploring AI and ML. Building systems that work reliably and solve real problems.
JV

About

I build systems grounded in first principles—starting from reliable infrastructure and evolving toward AI-driven solutions. With roots in cloud engineering and site reliability, I’m now exploring how machine learning can create meaningful products. I share experiments and learnings on X (@mrer42), focusing on practical AI applications and Python for data science. Formally trained in Electronic Engineering and Information Communication Technology, with recent specialized training in AI/ML. I enjoy building in public, learning from the community, and contributing to projects that have real impact.

Skills

Python
Machine Learning
Data Science & Analysis
AI Agents & LLMs
Kubernetes & Docker
Infrastructure & SRE
System Design
Cloud Architecture
My Projects

Check out my latest work

I've worked on a variety of projects on my spare time, see below.

Research Agent - Local LLM

Built a fully local research agent that explores any topic, synthesizes information, and generates summaries without relying on external APIs. The agent can search the web for context and works efficiently on Apple Silicon hardware. An experiment in privacy-preserving AI.

CrewAI.js
Node.js
Magic UI
Ollama
Local LLMs

Customer Satisfaction Prediction Model

Developed and trained a classification model for predicting passenger satisfaction on high-speed rail. Performed exploratory data analysis, engineered features, and compared decision trees and random forests. Learned the importance of data quality and feature engineering.

Python
Scikit-learn
Pandas
Google Colab
PineconeDB

CrewAI Helper Crew

A multi-agent research crew that leverages specialized roles to investigate topics in depth. Runs entirely locally with Ollama, demonstrating how agent architectures can distribute complex tasks effectively.

CrewAI
Python
Serper API
Ollama
Local Inference

ER Medical Assistant

An AI-powered platform exploring how technology can support doctors and patients in managing health journeys more effectively. Focused on practical applications of AI in healthcare with a human-centered design approach.

AI
React
Web Platform
Healthcare
Hackathons

I like building things

hackatons and other activities.

  • M

    MIT IDSS Hackathon - Shinkansen Satisfaction Prediction

    Remote

    Built a machine learning pipeline to predict customer satisfaction for Shinkansen passengers. Finished as 1st runner-up. The experience reinforced the importance of understanding business context and user needs when building predictive models.
  • X

    X-ray Lite - Lightweight Medical Image Analysis

    Sydney, Australia

    Developed an accessible tool for basic X-ray image analysis using AI. Focused on making medical AI approachable and understanding the challenges of deploying AI in resource-constrained settings.
Contact

Get in Touch

Want to chat? Just shoot me a dm with a direct question on X and I will respond whenever possible. I will ignore all soliciting.