I simply quit a job with 2 months after they pinned devops duties in addition to software development. And i've yet to be proven that this can be done by a single person.
That sounds like a spectacular duplication of effort to me.
Unless you are given time to spend on both roles independently then you end up cutting corners, it is inevitable as one or the other will be more important at one time and you can’t be in two places at once!
In the immortal words of Ron Swanson - never half-ass two things. Whole-ass one thing.
These were seasoned devs the company had lost and now the codebase is dysfunctional and has put the project/roadmap at risk and company revenue.
The thought of having to do Ops, write code and be on call gives me anxiety and panic attacks.