Olaf Haalstra
Senior Consultant Cyber Defense & Resilience at Deloitte
New York, New York, United States
Summary
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Senior🎓
Top SchoolOlaf Haalstra is a Senior Consultant in Cyber Defense & Resilience with 11 years of experience specializing in incident response and threat hunting at Deloitte Netherlands. He combines hands-on technical investigation skills with client-facing advisory work, having progressed through roles from consultant to junior manager and now senior consultant. Olaf co-founded a web-focused startup and has full-stack development experience, which gives him practical insight into how software design choices affect security posture. He is committed to knowledge-sharing—co-hosting a cybersecurity podcast and co-organizing the Challenge the Cyber initiative—to make complex topics accessible and to mentor the next generation of defenders. Based in Amsterdam, he blends law-enforcement internship experience at the National High Tech Crime Unit with academic rigor from a Computer Science MS at the University of Twente.
11 years of coding experience
5 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at University of Twente
Github Skills (184)
mach-o10
extraction10
targets10
influx9
servicenow9
api9
resumable-upload9
six9
resumable9
bitlocker9
read-write9
disk9
querying9
collections9
database8
Programming languages (15)
Github contributions (5)
OlafHaalstra/kpn-mb-share
Jan 2021 - May 2022
Docker container to share MBs between mobile phone numbers at the first of the month
Contributions:10 commits, 4 PRs, 6 pushes in 1 year 4 months
phonemobile-phonedockerphone-numbersmonth
OlafHaalstra/water-system
Apr 2021 - Jul 2022
Automatic watering system
Contributions:2 PRs, 35 pushes, 5 branches in 1 year 3 months
pythonazerothcorewatering-systemwateringmason
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