2015 – present
F5
The application delivery company, and the platform taught most on this site.
F5 is the deepest chapter of the whole record: a decade that runs from a first administrator certification through the full specialist ladder to the instructor's chair, three DevCentral MVP years, and the flagship hub of this site.
The certification ladder
The chapter opens in 2013, two years before the first exam: an F5 Accredited Sales Professional earned at a reseller, with the technical and security accreditations following in 2014. The certification ladder proper began in 2015 with the F5 Certified Administrator, earned while distributing the platform commercially, and the DNS specialist in 2017. The rest arrived after the move to teaching, because an instructor holds the certification for the course he delivers: ASM in 2020, LTM and F5-CSE Cloud in 2021, APM and F5-CSE Security in 2022. Nine years, commercial accreditation first and the expert peaks last, which is the order the work happened in rather than the order a syllabus would suggest.
The instructor's chair and DevCentral
F5 Authorized Instructor since 2020, delivering twelve official BIG-IP and TMOS courses, from administration fundamentals through LTM, DNS, ASM/AWAF, APM, iRules, and troubleshooting. F5's DevCentral community named me an MVP three consecutive years, 2022 through 2024. On this site, F5 is the flagship: the largest vendor hub, with calculators, decoders, and explainers built for the same engineers who sit in those classes.
What it certified
F5 Authorized Instructor (since 2020). Current certifications: F5-CSE Security, F5-CSE Cloud, F5-CTS LTM / DNS / ASM / APM, F5-CA. DevCentral MVP 2022, 2023, 2024. Full detail on the credentials page.
The company was founded in 1996. This page covers only the years worked with it.