Ruben Bouman
Cyber Defense Specialist at Sirius Security
Wijk en Aalburg, North Brabant, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolRuben Bouman is a Cyber Defense Specialist with 11 years of experience securing financial and enterprise systems from his base in North Brabant, Netherlands. He evolved from hands‑on application and system development to leading security assessments, penetration testing, malware analysis, and incident response at organizations including SNS REAAL and Sirius Security. Ruben blends deep software engineering roots (ASP.Net, C#, Java EE, SQL) with practical security craftsmanship—conducting source code reviews, forensics, and security training. He contributes to open-source defensive tooling, including enhancing a Rabobank threat-detection project to export mapped techniques to Excel for easier analysis and reporting. Known for turning complex security findings into actionable, audit-ready solutions, he also brings experience in secure architecture, SSO, and performance optimization for high-availability banking services. Colleagues value his ability to bridge developer and defender perspectives, translating technical detail into pragmatic risk reduction.
11 years of coding experience
1 year of employment as a software developer
Bachelor's Degree, Computer Science, major in Software Engineering, Bachelor's Degree, Computer Science, major in Software Engineering at Hogeschool 's-HertogenboschHigh School, Hoger algemeen voortgezet onderwijs (Havo), HAVO, High School, Hoger algemeen voortgezet onderwijs (Havo), HAVO at Willem van Oranje College
Dutch, English
Github Skills (8)
python10
xlsxwriter10
excel9
mitre-attack9
export-to-excel9
exports9
att9
yaml8
Programming languages (7)
Github contributions (5)
rabobank-cdc/DeTTECT
Apr 2019 - Jan 2023
Detect Tactics, Techniques & Combat Threats
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 releases, 216 commits, 21 PRs in 3 years 9 months
Contributions summary:Ruben's primary contribution involved adding functionality to export administrated techniques to an Excel file. The code changes focused on implementing this feature, including modifications to the `technique_mapping.py`, `dettect.py`, and `interactive_menu.py` files. The modifications included the addition of the `xlsxwriter` library and the creation of new functions to generate and output the technique data to an Excel spreadsheet.
combattechniquessecurity-toolsbugbountysecurity
siriussecurity/dettectinator
Nov 2022 - Jan 2023
Dettectinator - The Python library to your DeTT&CT YAML files.
Contributions:11 releases, 31 commits, 13 PRs in 3 months
python-librarypythonyaml-filesyaml
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