Matthew Walker
Senior Data Scientist
Wellington, Wellington, New Zealand
Summary
👤
Senior🎓
Top SchoolMatthew Walker is a Senior Data Scientist based in Wellington with 13 years of experience applying machine learning and software engineering to real-world problems across industry, defence, and healthcare. He holds a PhD in Genetic Programming and a postdoc in multi-objective optimisation, and has turned those research skills into production systems—from deep-learning vision on Raspberry Pi to cloud-hosted audio conferencing and automated building-energy fault detection. He has led teams (up to seven) to deliver complex products such as a stochastic weather generator for probabilistic risk analysis and has strong hands-on expertise across Python, R, Java/C/C++, SQL, and domain-specific tools like SkySpark. His consulting work blends statistical rigour and practical engineering: examples include Monte-Carlo financial modelling, a 27-year dermatology study re-analysis, and verifying large multi-spreadsheet economic models. He contributes to open-source tooling (notably refining a Python .msg extractor) and is comfortable owning projects end-to-end—from pitching multi-hundred-thousand-dollar programs to commissioning and support. A polyglot coder who enjoys language learning, he combines academic depth with a pragmatic focus on deployable, auditable solutions.
13 years of coding experience
3 years of employment as a software developer
Post-doc, Evolutionary computation applied to Wireless Sensor Networks (WSNs), Post-doc, Evolutionary computation applied to Wireless Sensor Networks (WSNs) at Université LavalKristin SchoolDoctor of Philosophy (Ph.D.), Machine Learning, Doctor of Philosophy (Ph.D.), Machine Learning at Massey University
English, French
Stackoverflow
2,677reputation
329kreached
29answers
17questions
pixel
top-5%
Github Skills (14)
file-parsing10
python10
pixel9
unicode7
pip7
appledeveloper6
command-line-interface6
knitr6
rmarkdown6
ios6
wav6
pandoc6
numpy6
r6
Programming languages (6)
Github contributions (5)
TeamMsgExtractor/msg-extractor
Jul 2013 - Jan 2018
Extracts emails and attachments saved in Microsoft Outlook's .msg files
Role in this project:
Back-end Developer
Back-end DeveloperContributions:34 commits, 8 PRs, 12 pushes in 4 years 6 months
Contributions summary:Matthew primarily focused on developing and refining the `ExtractMsg.py` script. Their initial contribution involved creating the core Python script to extract data from `.msg` files. Subsequent commits addressed issues such as handling empty subjects and implementing support for Unicode strings. Further improvements included adding a command-line option for raw file output and integrating with pip.
outlook
mattgwwalker/hof3-server
Oct 2013 - May 2018
Contributions:103 commits, 10 pushes in 4 years 7 months
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