Jeffery Grajkowski
Principal Engineer at MyFO
Victoria, British Columbia, Canada
Summary
🤩
Rockstar🎓
Top SchoolJeffery Grajkowski is a Principal Engineer based in Victoria, BC with 12 years of experience building secure, production-grade backend systems and payment platforms. He has led and scaled engineering teams through product launches, compliance (SOC 2 Type 2, HIPAA), and architecture overhauls—bringing test-driven practices, OpenAPI documentation, and SOLID design to fragile codebases. Jeffery has deep hands-on experience in payments and high-availability services (e.g., architecting Lightrail) and has driven integrations with ERPs and auth systems while mentoring engineers. He also contributes to notable open-source projects such as CefSharp, where he implemented geolocation support across WPF and WinForms, showing an ability to bridge native and managed code. Pragmatic and security-minded, he pairs strategic technical leadership with regular coding and code-review discipline to deliver reliable, auditable systems.
13 years of coding experience
21 years of employment as a software developer
Bachelor of Science (BSc) Computing Science, Bachelor of Science (BSc) Computing Science at University of Alberta
Stackoverflow
4,021reputation
444kreached
61answers
2questions
java
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javascript
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regex
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typescript
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Github Skills (24)
application-framework10
c-language10
app-framework10
browser10
cefsharp10
dotnet-core10
geolocation10
web-framework10
cprogramming-language10
csharp10
javascript9
java9
regex9
typescript9
winforms9
Programming languages (12)
Github contributions (5)
cefsharp/CefSharp
Jan 2015 - Apr 2015
.NET (WPF and Windows Forms) bindings for the Chromium Embedded Framework
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:5 commits, 4 PRs, 24 comments in 2 months
Contributions summary:Jeffery implemented geolocation functionality within the CefSharp framework. This included adding new interfaces, modifying core adapter classes, and providing example implementations for both WPF and WinForms environments. The user also addressed code cleanup and dependency checking, ensuring the proper functioning of the browser sub-process and correct initialization. Further contributions involved addressing issues related to Google API keys and geolocation requests.
chromiumdotnetwindowswindows-formswpf
Giftbit/lightrail-client-java
Jan 2018 - Mar 2022
A java client for the Lightrail API
Contributions:3 releases, 6 PRs, 31 pushes in 4 years 2 months
javagift-cardslightrail
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