Ramón Roldán
Software Developer at PayPaga
Barcelona, Catalonia, Spain
Summary
🤩
Rockstar🎓
Top SchoolRamón Roldán is a seasoned software developer with 13 years of experience building backend systems across fintech and payments companies in Barcelona. He has a long track record at organizations like Telegiros, Unnax and BlueLabs and currently contributes to PayPaga, bringing deep practical knowledge of payment-system engineering. Ramón is an active open-source contributor who modernized core parts of the popular NetMQ C# implementation of ZeroMQ—replacing legacy collections, improving data structures (XPub queue refactor) and enhancing device implementations to make the codebase more maintainable and performant. Known for pragmatic refactors and attention to internal APIs, he focuses on making legacy systems cleaner and more robust rather than chasing flashy rewrites. Colleagues rely on him to translate messy requirements into reliable, production-ready backend components.
13 years of coding experience
19 years of employment as a software developer
Abraham Lincoln School
English, Spanish
Github Skills (8)
net10
asp-net10
dotnet-new10
dotnet10
zeromq10
csharp10
messaging10
dotnet-core10
Programming languages (4)
Github contributions (5)
zeromq/netmq
Nov 2012 - Jan 2015
A 100% native C# implementation of ZeroMQ for .NET
Role in this project:
Back-end Developer
Back-end DeveloperContributions:47 commits, 3 PRs, 3 pushes in 2 years 2 months
Contributions summary:Ramón primarily focused on refactoring and improving the .NET implementation of ZeroMQ. They replaced legacy Power Collections with standard .NET framework classes to modernize the codebase. The user also addressed spacing inconsistencies and refactored the XPub component to use a queue instead of a stack, improving its internal data handling. Additionally, the user contributed to device implementations within the project.
dotnetnetmqzeromqcsharpmessaging
bansukai/historia
Feb 2022 - Apr 2022
Contributions:3 releases, 13 pushes, 19 tags in 2 months
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