The Data alchemist
I'm Badr ERRAJI, an AI & Data Engineering expert with over 7 years of experience specializing in Modern Data Stack and Generative AI solutions.
I'm really passionate about productivity and designing systems that make difference !
For that i help companies to really leverage their data as actionnable intelligence for business impact.
My mantra is that "teams must thrive and stay in the FLOW"
A great story starts with a great passion
My journey in data engineering is rooted in a solid academic foundation—a Master's in Computer Science for Market Finance from the prestigious Paris Dauphine University, where I developed expertise in mathematics, finance, and computer science.
Industry Experience
Working with financial powerhouses like Crédit Agricole-CIB, ENGIE Global Markets, and Natixis gave me invaluable insights into how robust data infrastructure can revolutionize business operations. These experiences taught me that data can either be your greatest ally or your most challenging obstacle—it truly is a business differentiator.
Entrepreneurial Perspective
The perspective that sets me apart came from bridging theory and practice by building my own businesses. This entrepreneurial journey exposed me firsthand to the daily challenges that SMBs face. I witnessed how scattered information and disorganized data processes create friction that prevents teams from reaching their potential
Evolution into AI
In recent years, I've expanded my focus to Generative AI solutions, developing custom frameworks that transform how companies interact with their knowledge bases.
My systems don't just store information—they make it actionable, allowing teams to:
• Retrieve critical information instantly
• Automate routine knowledge tasks
• Reduce onboarding time by up to 80%
• Maintain uninterrupted deep work sessions
The Mission Continues
Today, I combine my technical expertise, business acumen, and passion for productivity to create AI systems that don't just manage data—they liberate human potential by keeping teams in their flow state.
Strong values rooted in my fitness discipline and pursuit of excellence
Here is what i try to focus on, each time :
Business-First Thinking
Every technical decision is guided by its impact on your business outcomes. I focus on solutions that deliver measurable improvements in efficiency, decision-making, and innovation capability.
Deep Technical Expertise
Beyond just implementing tools, I architect solutions that address the specific challenges of your data environment. My expertise spans cloud platforms (AWS, Azure, GCP), data processing frameworks, and cutting-edge AI technologies.
Knowledge Transfer
I believe in empowering your team through collaboration. Every project includes knowledge sharing to ensure your organization can maintain and extend the solutions we build together.
Move Fast, Build Smart
In today's rapidly changing data landscape, speed matters. I deliver high-quality solutions with efficient timelines, prioritizing quick wins while building for long-term scalability. My agile approach ensures you see value early and often, without sacrificing architectural integrity.
Beyond Technology
When I'm not engineering data solutions, you'll find me practicing calisthenics and ring gymnastics—disciplines that require the same focus, precision, and continuous improvement that I bring to my professional work.
I'm also passionate about sharing knowledge through my blog at www.dataunboxed.io/blog, where I publish daily insights on AI, data, and infrastructure challenges.
AI & Knowledge Systems
Agentic frameworks
Advanced RAGs
Models fine-tuning
Data privacy
Data Engineering & Analytics
Data lakehouse architecture
ETL/ELT pipeline design
Executive & KPI dashboards
Data Quality & Governance
Cloud &
Infrastructure
AWS, Azure Integration
CI/CD & Devops
Infrastructure as a Code
FinOps & Cost Optimization