Senior Offensive Security Engineer, Equity Partner

About Halborn

Why hack and secure one blockchain company when you can direct your skills on dozens as a career? Our mission is to harden the world’s most cutting edge technology firms and that starts with blockchain tech. Founded in 2019, Halborn was born to solve the slew of adversarial problems unique to the cryptocurrency industry including but not limited to breaches, social engineering, stolen private keys, and economic hacks. Halborn’s clientele are the best of the best in the industry as well as new startups with high growth potential.

Company Culture

Halborn is currently x2 full-time partners, looking to grow our elite team of ethical hackers who value independence, want to make their own hours, and have a passion for the ever-evolving cryptocurrency industry. The right candidate will be offered equity and contracts.


  • Perform Testing systems, applications, networks and processes.
  • Research cutting-edge offensive security techniques.
  • Developing tools and exploits.
  • Communicate clearly and effectively, both written and orally, the risks that exist and remediations required.
  • Work collaboratively and independently on unique or special assignments which may require specialized knowledge and/or experience.
  • Comply with Company, Division and Professional ethical standards.
  • Conduct realistic adversary simulations from conception through reporting.


  • A passion for and experience in the cryptocurrency industry
  • 4+ years of offensive security experience.
  • 2+ years of experience in system administration, application development or network administration.
  • Experience using common penetration testing tools, BurpSuite, Metasploit, etc.
  • Proficient in at least 1 scripting language.
  • Proficiency with common server and workstation operating systems.
  • Mastery in testing modern web application languages and frameworks.
  • Mastery in testing modern authentication systems and Identity Providers.
  • Proficient knowledge of blockchain and smart contract implementations.
  • Ability to think critically and identify areas of technical and non-technical risk.
  • Ability to write technical reports and communicate technical content to non-technical audiences.
  • Relevant security certifications are a plus, but not required (OSCP, OSCE, GPEN, GWAPT, LPT, CISSP).

All candidates who make it past 2nd round will be required to:

  • Pass background and criminal record check
  • Provide references

How to Apply

Send CV and information to

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