Steve Walker
Lead Pricing Developer at Aviva Canada
Old Toronto, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolSteve Walker is a Lead Pricing Developer and data scientist with 12 years of experience applying statistical software and mixed-model methodologies across credit risk, insurance, fisheries, and epidemiology. He blends research-grade quantitative skills (PhD in Ecology and Evolutionary Biology) with product and engineering experience from roles in academia, government, and industry, including director-level data science leadership at McMaster and product management at Altair. Steve has a track record of turning ecological and environmental models into production-ready packages and tools used for real-world decision-making, from sport-fish population estimation to insurance pricing. Based in Old Toronto, he is equally comfortable refactoring R packages for distribution and shaping pricing systems at scale, bringing a rare mix of domain breadth and software delivery. An unspoken strength is his ability to translate complex hierarchical statistical models into actionable product features for non-technical stakeholders.
13 years of coding experience
10 years of employment as a software developer
Master's degree, Zoology, Master's degree, Zoology at University of TorontoBachelor's degree, Environmental Science, Bachelor's degree, Environmental Science at York University
Stackoverflow
111reputation
471reached
2answers
0questions
Github Skills (47)
simulation10
forecasting10
model-fitting10
forecast10
rcppeigen10
r9
simulation-modeling9
dataframe9
optimization9
cpp9
cuda8
data-analysis8
python8
api8
pandas8
Programming languages (7)
Github contributions (5)
canmod/macpan2
Dec 2021 - Mar 2023
Tools for building and calibrating compartmental models of infectious disease.
Contributions:6 releases, 15 reviews, 267 commits in 1 year 3 months
compartmental-modelsepidemiologyforecastingmixed-effectsmodel-fitting
canmod/iidda-tools
Jun 2021 - Oct 2025
Open toolchain for processing infectious disease datasets available through IIDDA and other repositories.
Contributions:8 PRs, 411 pushes, 2 branches in 4 years 4 months
toolchain
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