Oisín C is a software engineer based in Dublin with a decade of experience building high-performance systems and payment infrastructure, currently contributing to Stripe’s EMEA Wallets. He has deep low-level and systems expertise from his work on NGINX Unit, where he implemented MIME filtering, client IP replacement, and process/thread lifecycle hooks for a widely used open-source web app server. Comfortable across C, Python, Go, Node.js and more, he pairs production engineering with longstanding hobbyist interests in reverse engineering and computer security. His background includes teaching assembly and SQL at University College Cork and hands-on Linux/C work in production environments. That blend of systems-level insight and practical product experience lets him solve hard reliability and security problems while shipping pragmatic solutions. He also maintains an active public presence and projects at canty.dev and GitHub, signaling a commitment to open-source collaboration.
10 years of coding experience
2 years of employment as a software developer
Bachelor of Science - BS, Computer Science, First Class Honours, Bachelor of Science - BS, Computer Science, First Class Honours at University College Cork
NGINX Unit - universal web app server - a lightweight and versatile open source server that simplifies the application stack by natively executing application code across eight different programming language runtimes.
Role in this project:
Back-end Developer
Contributions:20 commits, 2 comments, 4 issues in 3 months
Contributions summary:Oisín implemented MIME filtering functionality, enabling the server to filter requests based on content types. This included modifications to route configuration, static file handling, and the addition of MIME type support for PHP. Further contributions involved the implementation of a client IP address replacement feature, improving the security and functionality of the server. Finally, the user integrated process and thread lifecycle hooks, enabling custom code execution during key events.
Contributions:9 commits, 8 pushes, 1 branch in 1 year 8 months
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