Ask HN: What technical topics can a dev get into besides leetcoding?
I want to stop mugging on leetcode
https://github.com/serain/crack-sec-eng-interviews
You may find something to pique your interest in there.
Security Engineer interviews tend to cover more ground than some other engineering positions in my limited experience (higher breadth, lower depth).
NB: I interpreted this as looking for things to improve your engineering skills. Security knowledge is always a plus.
1) reviewing and advising on engineering work carried by other engineers, so you need to understand what they're doing, why they're doing it that way, and what the more secure alternatives could be, all while taking into account any limitations (time, budget, developer experience). This may include pairing sessions with Software or Platform Engineers when it comes to implementing security-critical bits.
2) building, deploying and maintaining your own solutions to security problems your company is facing. This could be security automation, threat detection engineering, secure-by-default infrastructure-as-code modules etc.
In general you need to be a high-breadth, medium-depth well-rounded engineer to pull your weight as a Security Engineer in a decent tech company.