Peijun Ma
Senior System Administrator
Old Toronto, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolPeijun Ma is a Senior System Administrator and Software Engineer/SRE based in Toronto with a decade of experience building and operating cloud-native, containerized systems. He blends a pragmatic focus on reliability and cost-efficiency—demonstrated by storage and observability reductions at CircleCI and CI cost cuts at Garner—with a strong interest in functional programming and service-oriented architecture. Peijun has driven Kubernetes migrations, GitOps adoption with ArgoCD, and Terraform infrastructure-as-code initiatives that improved scalability and developer autonomy. He contributes to open-source testing tooling (enhancing terraform-compliance’s BDD test coverage) and is continually exploring architectures that trade complexity for long-term maintainability. Notably, he optimized graph DB query performance by orders of magnitude and champions knowledge-sharing through study sessions, reflecting a tinkerer’s curiosity combined with production-grade delivery.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at University of Toronto
English, Chinese
Github Skills (8)
terraformer10
test-framework10
python10
terraform10
bdd10
testing10
pytest9
infrastructure7
Programming languages (19)
Github contributions (5)
terraform-compliance/cli
Aug 2019 - Aug 2019
a lightweight, security focused, BDD test framework against terraform.
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:10 commits, 3 PRs, 1 issue in 1 day
Contributions summary:Peijun primarily focused on enhancing the testing framework for the project. They implemented new test cases, including those for operators and value matching. The contributions added new steps and assertion capabilities, expanding the testing coverage for the terraform compliance framework. Furthermore, the user updated the test suite to incorporate the new features and ensure their correct functionality.
testing-frameworkbdd-styletestingsecuritybdd
MaT1g3R/YasenBaka
Feb 2017 - Dec 2020
Contributions:408 commits, 12 PRs, 366 pushes in 3 years 10 months
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