Lex Toumbourou
Senior Machine Learning Engineer at Canva
Queensland, Australia
Summary
👤
Senior🎓
Top SchoolLex Toumbourou is a Senior Machine Learning Engineer based in Queensland with around 14–15 years of hands-on experience spanning ops, backend, data engineering, game development and ML. He blends deep operational expertise with full-stack development—having progressed from systems and help-desk roles through Telstra and ThoughtWorks to CTO and senior ML roles at startups and now Canva. Lex focuses on LLMs and agentic reasoning while retaining strong skills in Python, DevOps automation and production ML pipelines, and has shipped TensorFlow models and Lambda-served inference in production. He’s contributed DevOps automation to notable open-source tooling for AWS Lambda package builds, showing an eye for practical, portable solutions across environments. Colleagues know him as a fast learner who moves comfortably between low-level infra concerns and high-level ML productisation.
14 years of coding experience
9 years of employment as a software developer
MCSA Messaging on Windows Server 2003, MCSA Messaging on Windows Server 2003 at Excom and Private Study
English
Stackoverflow
463reputation
43kreached
10answers
2questions
Github Skills (17)
docker10
python10
bash10
dockers10
cicd10
build-automation10
aws-lambda9
cmake8
testing8
git7
computer-vision6
jupyter-notebook6
audio6
regex6
dataframe6
Programming languages (15)
Github contributions (5)
Miserlou/lambda-packages
Jan 2018 - Jan 2018
Various popular python libraries, pre-compiled to be compatible with AWS Lambda
Role in this project:
DevOps Engineer & Automation Engineer
DevOps Engineer & Automation EngineerContributions:10 commits, 1 PR, 1 comment in 2 days
Contributions summary:Lex primarily focused on building and automating the build and testing process for Python packages designed for AWS Lambda. They implemented a build script using Bash and Docker to compile and package the dlib library for Python 2.7 and 3.6. The user also created test scripts and Docker configurations to ensure the packages functioned correctly, and refactored the build process for improved efficiency and Lambda compatibility. They also adjusted the build process to correctly find dependencies within the Lambda environment.
pythonpypibotoserverlessaws-lambda
lextoumbourou/simple-ranker
Apr 2014 - Oct 2014
An extremely simple ranking module for pandas dataframes
Contributions:19 commits in 6 months
data-analysispythondataframesdata-sciencedataframe
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