For Hire
Contact Me

Hi, I'm Ruben.

Let's get coding!

I'm an AI Engineer with a background in Data Science and Physics. I like to bring innovative ideas to life through code and technology while staying up to speed with the latest advancements in the field.

Languages

English

How is your English?

Better than ever!

Nederlands

Spreekt u ook Nederlands?

Dat is mijn moedertaal!

Français

Et parlez-vous français aussi ?

Mais oui, bien sûr !

Skill Inventory

Programming

AI & ML

Cloud & DevOps

Databases & Pipelines

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About Me

In a nutshell

"Trained with data. Finetuned with experience."

I'm a developer who thrives on the challenge of building from scratch, whether it's a prototype in a 48-hour game jam or a streamlined data pipeline. I combine a data-driven mindset with hands-on experience and apply creative problem-solving to find simple solutions to complex problems.

I take my work seriously and have a strong commitment to deliver high-impact, reliable solutions that are easy to understand and maintain.

I value collaborative environments where open communication and a positive attitude are the standard. I believe in staying grounded and keeping a sense of perspective.

How I Can Help

🤝

Simplifying Processes

Automating boring, repetitive tasks so you and your team have more time for the work you actually enjoy.

💡

Prototyping Ideas

Have an idea? I can help you build a simple, working version to see if it fits your needs.

🤖

Making AI Useful

Finding practical, safe ways to use AI that actually help you in your day-to-day work, without the hype.

My Background

I started in Physics, where I learned how to break down large and complex problems into solvable components. During my studies, I discovered programming, which sparked a deep interest in Computer Science. I later delved into Quantum Computing, being the perfect bridge between my roots in Quantum Physics and my passion for programming.

After completing my studies, seeking to apply my analytical rigor to real-world challenges, I transitioned into Data Science and AI. Today, I build intelligent systems that transform raw information into actionable insights.

My Expertise

Technical Core

My professional experience has mostly been in the following aspects of AI and data systems:

  • Python & Data Science
  • Large Language Models and NLP
  • Software Engineering and DevOps

Interests

My work is fueled by a relentless curiosity specifically emerging synergies between:

  • Artificial Intelligence
  • Game Development
  • Quantum Computing

Selected Work

Practical solutions for real-world problems.

Internal Tools / AWS

LLM-Powered Recruitment Suite

Impact

Zero reliance on external paid APIs for core workflows

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Objective

Develop a suite of internal AI tools to streamline recruitment and sales operations, focusing on privacy and cost-efficiency through local LLM deployment.

The Challenge

Standardizing and speeding up manual internal processes (screening CVs, matching profiles to positions, and reformatting documents) without relying on expensive, third-party cloud APIs that pose privacy risks.

The Solution

  • CV Screener: Automated tool that screens candidate profiles based on geographical and linguistic criteria.
  • Profile-Position Recommender: Matching engine that suggests the best consultants for open roles.
  • Style Transformer: Generative tool that maps personal CVs to the standardized in-house template.
  • Set up and optimized local LLMs (Llama/Mistral) on AWS for data privacy.

Results

  • Zero reliance on external paid APIs for core workflows
  • Significant reduction in manual document formatting and screening hours
  • Improved response times for business development

Click to collapse

Conversational AI / RAG

Multi-Agency Conversational AI

Impact

Enhanced search accuracy within proprietary knowledge bases

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Objective

Develop a multilingual, multi-agency chatbot system capable of handling complex customer queries across different banking sectors.

The Challenge

Managing multilingual support while integrating Retrieval Augmented Generation (RAG) to ensure the chatbot's answers were grounded in proprietary, up-to-date data.

The Solution

  • Built a RAG-enhanced search engine and conversational interface.
  • Integrated RAG to bridge static LLM knowledge and dynamic internal documentation.
  • Enabled Multi-Agency support for a single architecture serving multiple business units.

Results

  • Enhanced search accuracy within proprietary knowledge bases
  • Reduced manual support desk load through automated responses
  • Wholesome collaboration across international teams

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Infrastructure / Automation

Legacy Sys. Modernization

Impact

85% reduction in script complexity (200 down to 30)

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Objective

Migrate critical ETL processes from a legacy Windows environment to a modern Red Hat Linux infrastructure.

The Challenge

The legacy system relied on ~200 disparate PowerShell scripts—a maintenance nightmare that was prone to failure and difficult to monitor.

The Solution

  • Translated and consolidated ~200 PowerShell scripts into <30 Python and Shell scripts.
  • Migrated the entire environment to Linux.
  • Leveraged Git and VSCode for a version-controlled developer experience.

Results

  • 85% reduction in script complexity (200 down to 30)
  • Significantly improved system stability and easier maintenance
  • Modernized developer workflow for the data engineering team

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Data Eng / NLP

Skills Knowledge Graph

Impact

Built a functional recommender system grounded in a formal graph ontology

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Objective

Design a system to map professional skills and provide intelligent job/course recommendations using a structured Knowledge Graph.

The Challenge

Skills data is often messy and unstructured. Creating a meaningful recommendation engine required extracting precise entities from vast amounts of text.

The Solution

  • Developed a Skills Ontology using Transfer Learning and NER.
  • Fine-tuned Transformer models for NER and Entity Linking.
  • Used ChatGPT bot to generate synthetic training data with semi-supervised learning.

Results

  • Built a functional recommender system grounded in a formal graph ontology
  • Accelerated data labeling through AI-assisted training
  • Successfully mapped complex relationships between evolving skills

Click to collapse