Data Scientist · AI Engineer

Andrei-Ioan
Bleahu

Turning rigorous mathematics into deployable machine learning .

Andrei-Ioan Bleahu
Distinction MSc Data Science · St Andrews
Dean's List (90%+ avg)
2.1 MPhys Physics · Southampton
2 Peer-reviewed publications

Data Scientist. AI Engineer

I began my career distinguishing myself in Romania's National Physics Olympiads, trained as a physicist at Southampton, and then doing research as a Junior Research Fellow at the University of Tartu publishing in peer-reviewed optics journals. Recognising the deep overlap between computational imaging and AI, I pivoted fully into data science by completing an MSc with Distinction at the University of St Andrews, where my dissertation showing that Bayesian Neural Networks can be compressed up to 90% compared to Frequentist methods was awared 18/20. I combine first-principles thinking with hands-on ML engineering to deliver solutions that are both theoretically sound and production-ready.

Bayesian ML PyTorch PySpark Scikit-Learn Deep Learning Computer Vision GANs & AutoEncoders MATLAB Python

The Journey So Far

🏅

2009 – 2013

National Physics Olympiads

Romania

Consistently ranked top 10 nationally per year group; twice selected among the top 20 students of all years eligible to represent Romania internationally — placing in the top 0.25% of my generation in Physics.

🎓

2014 – 2019

MPhys Physics

University of Southampton

Integrated Masters in Physics (2:1). Final-year project with the Optoelectronics Research Centre: experimental analysis of Hollow-Core fibres for phase stability in Quantum Repeater Architectures -- awarded first-class honours (71%) for this project, and a strong 2.1 overall for my degree.

2:1 Honours
🔬

Aug 2022 – Jul 2023

Junior Research Fellow — Computational Imaging

University of Tartu, Physics Dept.

Developed the Lucy-Richardson-Rosen deconvolution algorithm; improved I-COACH and FINCH holographic techniques. First author on two peer-reviewed papers. Presented at SPIE Photonics Europe 2023 (Prague). Co-organised a 48-hr Computational Imaging Hackathon. Secured a French Government bursary to collaborate with the SINGULAR group at the University of Bordeaux.

2 publications · 1st author

2023 – 2025

MSc Data Science

University of St Andrews

Graduated with Distinction (highest classification), GPA 18.1/20. Dissertation: Practical Bayesian Neural Networks that can be compressed up to 90% with no significant accuracy loss which opens the posibility of deplyoment on edge devices. End-to-end ML workflows with PyTorch, PySpark, and Scikit-Learn on real, anonymized datasets. In CS5959 (End-to-End Machinbe Learning) and CS5939 (Data-Driven Systems) I created end-to-end workflow for the full ML cicle, from problem definition and EDA to tuning models and deploying them

Distinction · Dean's List ×2

Skills & Technologies

🧠

Bayesian & Probabilistic ML

Bayesian Neural Nets Fixed Basis Expansion Bayesian Logistic Rregression
🔥

Deep Learning

PyTorch CNNs GANs YOLO Transformers AutoEncoders
📊

Classical ML & Data

Scikit-Learn PySpark Pandas NumPy Dash Plotly
🖼️

Computer Vision

Image reconstruction Deconvolution Holography MATLAB
🐍

Programming

Python Julia MATLAB SQL Git
🗣️

Communication

Stakeholder reporting Conference talks Workshop facilitation

Peer-Reviewed Publications

Optics Express

First-authored paper on computational holographic imaging

Optics Express, Vol. 31, Issue 16 · 2023

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Results in Physics

First-authored paper on image reconstruction algorithms

Results in Physics · 2023

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