(1) Being best in the world (or within the top couple of dozen) never hurts.
(2) Make sure that your skills are needed on the site of the work, and your job doesn't depend on having communications. We've lost 75% of our communicatinos because of the crane operator putting a load through one of the satellite radomes, so my work on this vessel is safe until the end of the contract.)
(3) multiple languages help. Anything other than English (I have moderate French and Spanish, a smidgin of Swahili and a dash of Russian) is an advantage against people who only have English.
(4) Get used to travelling. I'm half-way through this trip, with another month to go. Maybe more - who knows ? (No-one. Anywhere.)
Ummm, they're the main bits of advice I can give you.
What? You want to go to your home every night, and you work in communications of some sort? Well then, sir, you are in direct competition with millions of people all over the world who also intend to go home at night and work in communications. Many of them live in a lower cost economy than you do (in fact, precisely half of them live in a below-median cost-of-living economy. That is what "median" means.), and so you are, irrevocably, vulnerable to losing your job to them. It's called globalisation. Welcome to the brave new world. No, you cannot leave.