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Dr Rhys Wells

Dr Rhys Wells

Data Scientist & Engineer

Edinburgh, Scotland, GB
English

Background


About

About

Data scientist and engineer with a PhD in Mathematics and hands-on experience delivering machine learning solutions across research and industry. Security cleared and experienced working in cross-functional teams. Skilled in developing ML solutions, translating complex technical insights into actionable stakeholder recommendations.

Work Experience

Work Experience

  • Data EngineerVeolia

    Jun, 2024 - Present

    Designed and validated predictive models for telemetry anomaly detection, developed modular time series toolkit, and led digitalisation initiatives.

    • Designed and validated predictive models for telemetry anomaly detection, improving early identification of operational issues.

    • Developed a modular time series toolkit with anomaly detection and model validation workflows using Streamlit and FastAPI.

    • Led evaluation of Generative AI use cases and integrated them into existing workflows.

    • Automated complex data reconciliation pipelines, improving data quality and reducing manual reporting cycles by 67%.

    • Collaborated with domain experts to interpret model results and generate actionable insights for risk-aware decision-making.

  • Data Scientist, Science to Data Science (S2DS)

    Feb, 2024 - Mar, 20241 month

    Built LLM-powered NLP pipelines, integrated automated testing and evaluation metrics, and aligned model design with operational constraints.

    • Built modular, testable LLM-powered NLP pipelines with LangChain, Pytest, and reproducibility controls.

    • Aligned ML model design with operational constraints, focusing on explainability and deployment readiness.

    • Conducted peer reviews of ML pipelines to ensure compliance with organisational standards.

    • Led internal discussions on LLM evaluation strategies, including prompt injection testing and hallucination assessment.

  • Digital Consultant, Scottish Tech Army

    Mar, 2024 - Dec, 20249 months

    Conducted technical and process risk assessments to modernise document and data systems for accessibility, scalability, and security.

    • Conducted risk assessments to modernise document and data systems, advising on security, scalability, and cloud readiness.

    • Analysed storage practices, recommended Azure solutions, and designed scalable folder structures for long-term use.

  • Mathematics TutorPulse - The Education Place

    Sep, 2022 - Nov, 20231 year 2 months

    Led support sessions for high school students in mathematics.

    • Led support sessions tailored to high school student needs.

    • Adapted teaching style to individual learning requirements.

    • Enhanced student confidence and problem-solving ability.

  • Graduate Teaching AssistantUniversity of Liverpool

    Sep, 2020 - Nov, 20233 years 2 months

    Supported undergraduate teaching in mathematics modules including vector calculus, linear algebra, and statistics.

    • Delivered tutorials in vector calculus, linear algebra, and statistics.

    • Provided guidance and support for student learning outcomes.

    • Applied strong problem-solving and statistical analysis skills.

  • Lead Content Creator for MathematicsUniversity of Glasgow

    Jun, 2019 - Aug, 20192 months

    Created and developed mathematical learning content, including interactive assignments and tutorial materials.

    • Generated exercise, feedback, and tutorial sheet questions aligned with learning outcomes.

    • Developed interactive homework assignments on Webassign.

    • Designed classroom response activities on YACRS.

  • Graduate Teaching AssistantUniversity of Glasgow

    Sep, 2018 - Mar, 20196 months

    Assessed and supported second-year undergraduates in mathematics tutorials, providing detailed written feedback.

    • Delivered tutorials and supported students to meet intended learning outcomes.

    • Provided constructive written feedback on assessments.

    • Adapted teaching methods to diverse student needs.

  • Private Tutor (Math, Physics, Chemistry), Self Employed

    Sep, 2014 - Sep, 20184 years

    Tutored high school students in mathematics, physics, and chemistry, tailoring lessons and homework to individual learning needs.

    • Planned and delivered lessons for students ranging from S1–S6.

    • Tutored an average of four students annually across mathematics, chemistry, and physics.

    • Supported student progress through personalised lesson plans and regular homework assignments.

Projects Experience

Projects Experience

  • Data Archive

    Aug, 2025 - Present

    My Second Brain focusing on data science, business, and engineering topics.

    • Knowledge Base

    • Research

  • ML Tools

    Jan, 2025 - Present

    A store of common ML tools.

    • Knowledge Base

    • Working

Skills

Skills

  • Programming & Scripting

    Python

    Pandas

    Powershell

    Scikit-learn

    SQL

    R

    Git

    Bash

  • Model Development & Evaluation

    Regression

    Classification

    Clustering

    Time Series Forecasting

    LLM Pipelines

    Model Explainability

    Code Quality Evaluation

    Unit Testing

  • Tooling & Platforms

    Streamlit

    FastAPI

    PowerBI

    GitHub

    GitLab

    VS Code

    BigQuery

  • Leadership

    Team Building

    Mentoring

    Cross-functional Collaboration

    Project Management

  • Communications

    Public Speaking

    Active Listening

    Empathy

    Storytelling

    Summarizing

  • Practices

    Reproducible Pipelines

    Risk-aware Model Evaluation

    Stakeholder Collaboration

    Model Documentation

    Model Governance

Education

Education

  • Mathematics, PhD, University of Liverpool

    Sep, 2019 - Dec, 2023

    Algebraic geometry

    Combinatorics

    Computational Computing

    Research

  • Mathematics, M.Sci, University of Glasgow

    Jan, 2014 - Jan, 2019

    Differential Equations

    Linear Algebra

    Advanced Numerical Methods.

    Category Theory

    Functional Analysis

    Abstract Algebra

Interests

Interests

  • Machine Learning Community

    MLOps MeetupsData Science Meetups
  • Time in Nature

    BackpackingFishingHikingCamping