21 is seeking a Security Engineer interested in all aspects of internal and external Bitcoin software security.
What you'll doAs a security engineer on our team you will have an opportunity to be both builder and breakerAs a builder you will work on key management across all systemsAs a breaker you will bring your experience to security reviews and penetration testsSpecifically, you will design and build the key management and fraud mitigation systems used across our products and servicesYou'll also lead threat models and design reviews to ensure all products and services released follow security best practicesFinally, you'll work with outside vendors to perform security reviews of products and services
Bonus PointsYou're an active contributor to the open source communityYou have experience with cryptographic hardware (TPM, HSM, etc.)Experience writing key-management softwareExperience with building fraud mitigation, authentication, and authorization systemsExpertise in the theory and implementation of white-box cryptographyYou have a healthy sense of paranoia :)
What you'll getCompetitive compensation and benefitsGenerous equity package in a fast-growing startupCatered lunches and dinners plus a fully stocked fridgeGym membership to work off the catered lunches and dinnersMacBook Pro, Thunderbolt display, and all the technical books you need