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Skhathisomusa MthembuSM
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Skhathisomusa Mthembu

@skhathisomusamthembu

Data Scientist at Direct Line Group and Sow and Soul, applying deep learning to classify aerosol particles with up to 97% accuracy.

United Kingdom
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At Sow and Soul, I design relational databases that turn farm animal records into a usable analytical asset for its Livestock Operating System. I also engaged with a South African livestock farmer to secure a letter of intent for pilot onboarding.

At Direct Line Group, I refactored and tested Semantic Role Labelling neural networks on size-variant driving data, achieving above-chance results (+50%). I integrated MLflow experiment tracking and model registry into the machine learning pipeline.

For my PhD research at the University of Hertfordshire, I developed CNN, LSTM RNN, and autoencoder models to classify aerosol particles from 2D fluorescence spectral data, achieving 82–97% accuracy for silica/coal discrimination. I also applied autoencoders to unlabeled UVLIF data for unsupervised feature learning.

Earlier, at Absa Group, I built an NLP tool to classify Twitter sentiment toward the brand and a help-desk query categorisation tool in R and Python. My work spans machine learning, statistical analysis, and data tools including TensorFlow/Keras, PyTorch, SQL, and AWS S3.

Experience

Work history, roles, and key accomplishments

SS
Current

Head of Data Science

Sow and Soul

Jan 2026 - Present (9 months)

Designed relational databases for farm animal records and led engagement with a South African livestock farmer to secure a letter of intent for pilot onboarding.

DG

Data Analyst

Direct Line Group

Oct 2022 - Apr 2026 (3 years 6 months)

Refactored and tested Semantic Role Labelling neural networks on driving data, achieving above-chance results. Led integration of MLflow experiment tracking and model registry, improving reproducibility of the ML pipeline.

AG

Data Analyst

Absa Group

May 2020 - Aug 2020 (3 months)

Built an NLP-based Twitter sentiment analysis tool and a help-desk query categorisation tool in R and Python. Consolidated multi-source business data into Power BI dashboards and reports.

OC

Data Architect and Translator

OnePointFour Consulting

Feb 2019 - May 2019 (3 months)

Designed and built metrics in R (BigQuery) to measure user learning rates for a financial literacy game app used by 5,000+ users.

PS

Optimisation Analyst

Pivot Sciences

May 2018 - Nov 2018 (6 months)

Added an API and fixed bugs in an analytics inventory tool predicting out-of-stock products from sales data. Cleaned input data for an in-house cyclical optimisation tool.

CJ

Student Researcher (MSc)

CERN & JINR

Sep 2016 - May 2017 (8 months)

Analysed particle physics data using ROOT software to determine final-state products of resonant Higgs decay. Quantified the relationship between radiation dose and detector damage in plastic scintillators.

Education

Degrees, certifications, and relevant coursework

University of Hertfordshire logoUH

University of Hertfordshire

PhD, Physics

PhD candidate in Physics with research focus on deep learning applications for aerosol particle classification. Expected completion in November 2026.

Coursera logoCO

Coursera

Machine Learning, Machine Learning

Machine Learning certification.

University of the Witwatersrand logoUW

University of the Witwatersrand

MSc, Physics

MSc in Physics, with research conducted at CERN and JINR on particle physics data analysis.

University of the Witwatersrand logoUW

University of the Witwatersrand

BSc (Honours), Physics

BSc (Honours) in Physics.

University of the Witwatersrand logoUW

University of the Witwatersrand

BSc, Physics

BSc in Physics.

Coursera logoCO

Coursera

Advanced R Programming, R Programming

Advanced R Programming certification.

Coursera logoCO

Coursera

The R Programming Environment, R Programming

The R Programming Environment certification.

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