Jaap Marcus
Software Developer at AdSight
Zutphen, Gelderland, Netherlands
Summary
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RockstarJaap Marcus is a software developer with six years of experience based in Zutphen, Netherlands, currently building products at AdSight. He contributes actively to open-source projects—most notably as a back-end contributor to FOSSBilling and as a developer of HestiaCP—bringing hands-on expertise in billing systems, server management integrations (Hestia/Vesta), and secure backend fixes. Jaap bridges backend and frontend work, having improved mediaelement demos and player behavior while also addressing installer, port, and security-related issues server-side. Comfortable across the stack, he focuses on practical, standards-compliant improvements (PSR12) and real-world compatibility fixes. Colleagues rely on him to untangle deployment and integration quirks that often hide in hosting and billing software.
6 years of coding experience
Github Skills (25)
apim10
javascript10
back-end-development10
server-manager10
mysql10
php10
manage10
api10
server-administration10
html10
server10
html5-audio9
html5-video9
database-management9
hlsl8
Programming languages (14)
Github contributions (5)
FOSSBilling/FOSSBilling
May 2022 - Jan 2023
Empower your hosting business with FOSSBilling, the free and open-source solution for efficient billing and client management.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 1051 reviews, 76 commits in 8 months
Contributions summary:Jaap's commits primarily address back-end development tasks within the FOSSBilling project. These contributions include bug fixes, such as correcting an issue with database names containing hyphens, and code improvements related to security by preventing the storage of passwords in plain text. Furthermore, the user has contributed to the server management components, updating both Hestia and Vesta server managers, suggesting active work with server-side configurations. The user has also modified the installer to address port configuration problems.
hostingpaymentsmysqlecommercetwig
boxbilling/boxbilling
Mar 2022 - Nov 2022
BoxBilling - Open source billing and client management software
Role in this project:Backend Developer
Backend DeveloperContributions:2 reviews, 10 commits, 6 PRs in 7 months
Contributions summary:Jaap primarily contributes to the backend logic of the BoxBilling project, focusing on server management integrations. They added support for HestiaCP and VestaCP, demonstrating an understanding of server administration and API interactions. Furthermore, the user fixed links in the exception page and updated the HestiaCP integration to follow PSR12 standards and minor improvements.
hostingpaymentsjump-inboxbillingmysql
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