Sjoerd Mulder
Co-Founder Chief Technology Officer at Crobox
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolSjoerd Mulder is a seasoned technology founder and CTO with 14 years of experience delivering scalable, full-stack software. As Co-Founder and CTO of Crobox since 2014, he leads an event-driven platform that uses Scala, Akka, Mesos, Docker, Elasticsearch and Cassandra to enable millisecond REST responses for real-time shopper profiling. He spans the full stack—from hardware and networks to advanced UI with JavaScript, CSS and HTML—emphasizing reusable components, design patterns and strong usability. An active open-source contributor, his work covers both front-end and back-end, including enhancements to the malhar-angular-dashboard, the MongoDB Java driver, Storm and Jongo, with a focus on testing, robustness and data handling. Based in Amsterdam, he previously built enterprise-grade systems at Backbase and holds a Bachelor of Information and Communication Technology from Amsterdam University of Applied Sciences.
14 years of coding experience
11 years of employment as a software developer
Bachelor of Information and Communication Technology, Bachelor of Information and Communication Technology at Amsterdam University of Applied Sciences
English, Dutch
Github Skills (34)
unit-testing10
json-parser10
json10
storm10
jsonparser10
javascript10
apache-storm10
data-serialization10
distributed-systems10
java10
mongodb-database10
serialization10
javas10
deserialization10
json-p10
Programming languages (13)
Github contributions (5)
bguerout/jongo
Jan 2013 - Sep 2013
Query in Java as in Mongo shell
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits in 8 months
Contributions summary:Sjoerd primarily focused on bug fixes and enhancements related to the handling of binary data within the Jongo library. They addressed issues related to marshalling and unmarshalling of binary data, ensuring correct serialization and deserialization. Furthermore, the user made improvements to the test suite to include comprehensive testing for binary data types, ensuring the library functions correctly. These changes indicate a focus on core functionality and data handling within the library.
querymongomongo-shelljavashell
dtpublic/malhar-angular-dashboard
Jul 2014 - Sep 2014
Generic Dashboard/Widgets functionality with AngularJS (directive)
Role in this project:Front-end Developer
Front-end DeveloperContributions:6 commits in 1 month
Contributions summary:Sjoerd primarily focused on improving the functionality and extendability of the dashboard's AngularJS directives. They implemented changes to allow the integration of custom sortable options, enhancing the user's ability to control widget arrangement. The contributions also included the addition of unit tests to validate the behavior of the dashboard directive and addressing minification issues to ensure proper operation. These changes ultimately focused on improving the flexibility and maintainability of the dashboard's core components.
genericdirectivedashboard-widgetsangularjsdashboard
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