Michael Heemskerk
Business Architect at Randstad
Haarlem, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolMichael Heemskerk is a business architect and senior product owner with 13 years of experience driving user-centered, data-informed products in staffing and recruiting at Randstad. He has led cross-functional teams to build widely adopted tools—ranging from a 2,500+ user job request platform to sales and next-gen search & match systems that embed algorithms and map visualizations to boost revenue and efficiency. Comfortable bridging process architecture, BPMN, and Agile delivery, he combines hands-on backend contributions (notably improving session handling in the popular Hazelcast project) with strong stakeholder management and entrepreneurship. A former professional speedskater turned product leader, he brings discipline, a performance mindset, and a knack for turning user research into measurable product outcomes.
13 years of coding experience
7 years of employment as a software developer
Bachelor’s Degree, Sport, exercise and lifestyle, Bachelor’s Degree, Sport, exercise and lifestyle at Hogeschool INHOLLAND
Dutch, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (8)
javas10
caching10
hazelcast10
distributed-systems10
java10
spring9
data-structures8
data-structure8
Programming languages (3)
Github contributions (5)
hazelcast/hazelcast
Mar 2014 - Oct 2014
Hazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 3 PRs, 10 comments in 7 months
Contributions summary:Michael primarily contributed to the Hazelcast web module, focusing on improving the functionality and performance of the distributed session management. They fixed a bug related to incorrect caching behavior within `HazelcastHttpSession.getAttribute` and optimized the web filter by using `IMap.set` instead of `IMap.put`. Additional contributions involved allowing subclasses to override `HazelcastHttpSession` creation, and refactoring related to session handling. They also made changes to the Hazelcast spring module.
data-platformhazelcaststream-processingjavain-memory
mheemskerk/collectd
Nov 2018 - Mar 2020
The system statistics collection daemon. Please send Pull Requests here!
Contributions:2 pushes, 1 branch in 1 year 3 months
golangstatisticsdaemonlinuxstatistics-collection
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