Frans Rosén
Security Advisor at Detectify
Sweden
Summary
🤩
RockstarFrans Rosén is a seasoned security advisor and technology leader with 15 years of experience building and securing web and cloud-native applications from Sweden. As a founding CTO and entrepreneur behind the Silk ecommerce platform and current CTO at Centra, he combines hands-on engineering with product-led business leadership across global retail customers. At Detectify he serves on the board and advises on automated security testing, blending practical offensive security insight with scalable automation. An active contributor to open-source infosec tooling, he improved core functionality and efficiency in the well-regarded altdns subdomain enumeration project. Known for turning hacker-minded research into pragmatic, auditable fixes, Frans bridges the gap between offensive discovery and enterprise-ready remediation.
15 years of coding experience
2 years of employment as a software developer
Github Skills (8)
file-handling10
subdomain10
python10
command-line9
command-line-utility9
command-line-interface9
command-line-tool9
regular-expression8
Programming languages (9)
Github contributions (5)
infosec-au/altdns
Jun 2016 - Jun 2016
Generates permutations, alterations and mutations of subdomains and then resolves them
Role in this project:
Back-end Developer
Back-end DeveloperContributions:14 commits in 1 day
Contributions summary:Frans primarily contributed to the core functionality of the `altdns` tool, a subdomain enumeration utility. They implemented features such as ignoring existing domains in the input file and making the number suffix optional. The user also improved the code by fixing an error and improving the quality of the output of the tool. Additionally, they refactored the code to use Python sets to ensure the uniqueness of the output, enhancing the tool's efficiency.
golangpermutationspenetration-testinginfosecsubdomains
fransr/bountyplz
Apr 2018 - May 2019
Automated security reporting from markdown templates (HackerOne and Bugcrowd are currently the platforms supported)
Contributions:17 commits, 2 PRs, 11 pushes in 1 year
checklistsarifreportingsecurityplatforms
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