> If you have Kubernetes, a complex SPA frameowrk on the front end, and a maze of microservices on the backend, it's unrealistic to expect any one developer to have mastery over all that.
Why?
Why?
Absolutely nothing of value was accomplished. By the time a person started to get decent at Kubernetes and frontend and backend and support they would find a better job with more realistic expectations.
So we basically we were paying people to learn for a year, then they would leave.
Why is it unrealistic to expect a school teacher to be able to teach every single subject?
Because in these fields, along with software development, there's too much breadth of material to sufficiently explore the depths of all of it. Having the breadth and depth of experience required to have mastery in every bit of minutia is a even slightly complex webapp is enormously difficult to obtain and maintain for a single person.
Someone can master a subject in 5+ years if they do it everyday. A fullstack dev with 20 years experience can master all those stated and more and I know fullstack devs (granted not many) than can maintain entire apps like this.
The problem is that all of these are moving targets. You don't master DevOps in 5 years and then you're done forever (same with backend and front-end development), these are constantly changing fields that require continually honing your skills.
I'm a fullstack dev who is often our devops/kubernetes lead. I'd say over 50% of my day is around DevOps tasks, but I'm likely to write an API or hone a frontend animation as well. I contribute on all parts of our microservice based kubernetes government application, but do skew to the devops side where the rest of my teams' experience is lighter. I can write iptables or webpack configs, I can implement OAuth or modify bezier curves for animations, and frequently do it all at my job. I have just over 10 years of professional experience but have been programming longer.
Full stack doesn't mean everything.
And actually all the doctors are doctors first, so they know everything about medicine, except they are not specialized in all the medical specialties.
Which is rarely a requirement in medicine.
Brain surgery or conjoined twins separation isn't that common, but an highly specialized surgeon is perfectly capable of curing common diseases just like a cardiologist can perform common surgery, such as appendicitis.
Full Stack means that you can get things up and running, not that you know everything of everything.