I am available as a freelance Information Security Consultant in the general area of

  • Code audits and review
  • Pentesting of web infrastructure, networks and hosts
  • Development and operation of custom fuzzing setups
  • Custom security research for your project, including hardware topics

Please see some of my published work on this site as a reference.


Feel free to reach out to discuss potential projects and offers:

  • Via email at target
  • Via Matrix at target

My PGP key is available on request.

I’m part of the Radically Open Security Security Consultants team

  • Performing various types of pentests and audits for company clients
  • Reviewing open source software including some of the NLnet foundation projects
  • If you need multiple pentesters on the project, you can contact ROS here

Public Client: Satoshilabs

  • Securing the Trezor cryptocurrency hardware wallet product line through advanced fuzzing research and code reviews
  • Engaged for SatoshiLabs since October 2019
  • Previous independent research on the Trezor is going back to 2018

Published Client Work

Year Description Document
2023 NLnet NGI Review Pendulum Project ntpd-rs Security Evaluation Report (PDF)
2022 NLnet NGI0 openEngiadina Quick Security Evaluation Summary (PDF)
2021 BlockchainCommons cryptographic libraries Review Report (PDF)
2020 Polychain Laptop Security Review Report (PDF)