Ian Robertson - Principal Data Engineer

Ian Robertson

Principal Data Engineer

Old Toronto, Ontario, Canada

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Summary

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Senior

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Top School

Ian Robertson is a Principal Data Engineer with 11 years of experience building and improving large-scale analytic data ecosystems, currently shaping Shopify’s data foundations in Toronto. He blends hands-on engineering and technical leadership, having led data science teams, rebuilt data warehouses, and owned critical analytic pipelines across Shopify and Capital One. Ian has shipped production Python tooling and open-source work—most notably contributions to datacompy for human-readable DataFrame comparisons—alongside migration projects from legacy systems to modern cloud stacks like Snowflake. With a BSc in Mathematics, he brings rigorous analytical thinking to data engineering, plus a knack for documentation and developer ergonomics that surfaces in company-wide handbook contributions. Notably comfortable toggling between manager and individual contributor roles, he focuses on making data both reliable and delightful to use.

11 years of coding experience

13 years of employment as a software developer

Bachelor of Science (B.Sc.) Mathematics, Bachelor of Science (B.Sc.) Mathematics at Queen's University

Github Skills (8)

dataframes10

pandas10

python10

dataframe10

numpy10

data-science9

documentation9

testing8

Programming languages (1)

Python

Github contributions (5)

capitalone/datacompy

Mar 2018 - Jan 2019

Pandas, Polars, Spark, and Snowpark DataFrame comparison for humans and more!

Role in this project:

Back-end Developer

Contributions:3 releases, 2 reviews, 25 commits in 10 months

Contributions summary:Ian's contributions primarily involve modifying and improving the `datacompy` Python library. They updated documentation, including adding a Travis CI badge and making other documentation improvements. They fixed an issue related to Pandas API changes and adjusted the project's requirements. Furthermore, they refactored the code by moving a maximum difference calculation into its own function and added encoding to the setup.

polarspythondatadaskfor-humans

theianrobertson/theianrobertson.github.io

Jun 2021 - Sep 2023

Bloggy blog

Contributions:4 PRs, 16 pushes, 4 branches in 2 years 4 months

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