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Antonia Chalka
Bioinformatician & Machine Learning Engineer at The University of Edinburgh
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Antonia Chalka

Bioinformatician & Machine Learning Engineer at The University of Edinburgh
PhD Bioinformatician at the Roslin Institute: Genomics, Bacteriology, Machine Learning, Data Science, Visualisation & Analysis, Statistics & Modelling.
University of Edinburgh
The University of Edinburgh
Edinburgh, Scotland, Great Britain
United Kingdom・Greece

Professional Background

  • Current Status
    Employed
  • Profession
    Researcher
    Machine Learning Engineer
  • Fields
    Artificial Intelligence / Machine Learning
    Health
  • Work Experience
    4-6 years (4-6 years relevant)
  • Management
  • Skills
    Machine Learning
    R
    Python
    Bash
    Docker
    Scikit-Learn
    Pandas
    NumPy
    Ggplot2
    Git
    SQL
    Genomics
    Bioinformatics
    Google Cloud Platform (GCP)
    Data Analysis
    Whole Genome Sequencing
  • Languages
    English
    Native or Bilingual
    Greek
    Native or Bilingual
  • Highest Level of Education

Job Search Preferences

  • Current Status
    Ready to interview
  • Desired Job Type
    Full-time
    Remote Only
  • Desired Positions
    Data Scientist, Data Analyst, Machine Learning Engineer
  • Desired Work Locations
  • Freelance

Work Experience

Postdoctoral Researcher

Apr 2023 - Present
City of Edinburgh, Scotland, United Kingdom
Developed ML models (Python: scikit-learn, NumPy, Pandas) for bacteria-phage interaction prediction and E. coli host assignment. Built and optimized Nextflow-based pipelines containerized with Docker/Singularity for large-scale genomic data processing, automating model training, validation, and testing, with Git for version control. Worked with HPC clusters and cloud computing (Google Collaborative Cloud, CLIMB) for scalable workflows. Applied feature engineering & statistical modelling of high-dimensional biological data to extract key insights on E. coli & phage phylogeny, antimicrobial resistance (AMR), and deconvolute host specificity. Utilized R for analysis & visualization, ensuring output interpretability and actionable insights. Developed a Flask-based intranet web app for automated sequence analysis and integrated ML models into a government food surveillance data platform. Presented research at international conferences (talks & posters) and led industry-focused ML workshops to bridge research with real-world applications.

Doctoral Researcher

Oct 2019 - Dec 2023
4 yrs 3 mos
City of Edinburgh, Scotland, United Kingdom
Developed host attribution models for Salmonella Typhimurium using machine learning, enabling accurate prediction of pathogen origins. Designed benchmarking frameworks to systematically compare ML-based attribution models against traditional epidemiological and genomic methods. Explored different data representations by testing ML models on varied biological data types (e.g., SNPs, k-mers, gene presence/absence) and their combinations to determine optimal predictive strategies. Built a generalizable framework for pathogen host prediction, laying the foundation for later work on E. coli and phage models. Conducted bioinformatics analyses to extract meaningful features from large-scale genomic datasets, integrating sequencing data with ML approaches. Gained expertise in machine learning methodologies, including feature selection, model evaluation, and interpretability techniques, while applying best practices for reproducibility and scalability. Presented research at national and international conferences and led bioinformatics workshops for lab members to help learn & apply bioinformatics tools to their projects.

Assistant

Jun 2013 - Jul 2013
2 mos
Unpaid Intership Assistant to owner: Perform basic blood tests Prepare blood and urine samples for further biochemical analysis Key Skills: Follow procedure, Operate relatively complex machinery, Attention to detail, Customer service.

Education

Doctor of Philosophy (PhD)
Using machine learning to examine Salmonella enterica host specificity.
2019 - 2023
Master of Science (MS)
Bioinformatics, Polyomics and Systems Biology
2018 - 2019
Activities and societies
Glasgow University Creative Writing Society
Bachelor of Science (BS)
Genetics
2014 - 2018
High School Diploma
International Baccalaureate
2012 - 2014
High School Diploma
1st Year of Lyceum
2011 - 2012

Licenses & Certifications

LinkedIn
Issued Sep 2019
No Expiration Date

Examination for the Certificate of Proficiency in English (C2 Level Examination)

Michigan Language Assessment
Issued Jan 2010
No Expiration Date

Diplôme d'études en langue française (DELF) A2 Level

France Éducation international
Issued Jan 2010
No Expiration Date