Before you read about me, I'd appreciate it if you take a look at https://meta.stackexchange.com/q/336526/162102 - it will tell you the reason for the change in my username. If you're so inclined, you can make a donation to the defense fund at https://www.gofundme.com/f/stop-stack-overflow-from-defaming-its-users
I'm a unix sysadmin, working as a consultant at B3 Init AB (www.b3.se). My main focus is unix security and PKI; I work a lot with the open-source CA system EJBCA.
Previous jobs include sysadmin in charge of security related systems at a large bank, and mail servers at a largish ISP, including handling abuse and spam issues.