Engineer (Ya, ya, no fun at parties, and can't spell)
Career changes? I've had a few.
43rd year (on and off) in the aaawl bid-ness (or natural resource variations thereof)
Started as a summer student on oil service rigs
Gas plant operations engineer
Facilities construction and project management
Joint venture engineer (learned a ton about negotiations and commercial contracts)
Field operations superintendent in sour gas processing and then black oil production (learned a ton about how head office pizzes away the money the field ops makes).
Asset manager (learned a ton about direct P&L responsibility and capital investment efficiency)
VP Operations & Engineering for an independent upstream E&P company (learned a ton about why I hate supervising professional employees).
Managing Director Middle East & North Africa for one of the largest global "blue water" LPG & gas liquids transport (VLGCs) & trading companies (commercial supply negotiations with national oil companies, such as Aramco, Adnoc, QP, etc)
Post 9/11 and Gulf War II, Co-founder & CEO of a private partnership in the Middle East that conceived and then developed a gas derivatives manufacturing project in collaboration with the Egyptian State-owned Natural Gas Company (pulled together everything I'd learned in all my previous jobs)
After completing the successful sale of the company just before the 2008 financial crisis, tried "retirement" for the first time and spent 3 years building (me, one helper and a pickup truck full of tools) Mrs. GRG55's dream home in the boondocks so "we" can live happily ever after with her horses (oh joy
)
Called out of retirement (which is a highly overrated status btw) to do a turnaround on a troubled gold mining project in Central Asia. Fired the CEO and the Country Manager. Got the mine back on track, finished and cashflowing. Retired again.
Called out of retirement to do a turnaround on a troubled CNG fuel company owned by a college classmate of mine, which we fixed and then sold. Tried the retirement thing one more time...it didn't last.
Came out of retirement to co-found a private partnership that provides specialty CNG and LNG services, mostly to the natural gas transmission and distribution pipeline utilities in the USA and Canada. Enjoying the fact most of my travel involves only +/- one hour time zone changes now. Not enjoying the fact it's a 7 day a week job and seriously cutting into flying time.
And still broke because of aviation + horses...the deadly combination.