Dirk Zittersteyn
Staff Software Engineer at HackerOne
Groningen, Groningen, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolDirk Zittersteyn is a Staff Software Engineer based in Groningen with 11 years of experience building and evolving product-grade software at HackerOne, where he progressed from Software Engineer to Staff since 2014. He brings deep institutional knowledge of the platform and a track record of driving technical direction and delivery across security-focused products. Educated with a BSc and MSc in Computer Science from the University of Groningen, Dirk combines strong academic grounding with hands-on engineering and mentoring experience from his earlier roles in academia and student leadership. His background includes cross-functional collaboration on course delivery and promotional activities, hinting at strong communication and stakeholder management skills beyond pure coding. Known for steady internal progression rather than public open-source visibility, he appears to excel at long-term ownership and scaling complex systems within a high-impact security company.
11 years of coding experience
7 years of employment as a software developer
Bachelor of Science (BSc), Computer Science, Bachelor of Science (BSc), Computer Science at Rijksuniversiteit Groningen / University of Groningen
Dutch, English
Github Skills (73)
difference10
browser9
bdd9
testing9
test-framework9
linter9
sequence9
numeric9
analyzer9
tdd9
rails-app9
nodejs9
mochajs8
code-analyzer8
formatter8
Programming languages (6)
Github contributions (5)
DZittersteyn/dzittersteyn.github.io
Jan 2022 - Jul 2024
Contributions:3383 pushes in 2 years 6 months
Hacker0x01/approvals
Mar 2017 - Mar 2020
Approval Tests for Ruby
Contributions:1 push, 2 branches in 3 years
test-kitchentestingrubyapprovalsketchup
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