Mutex, spinlock, linked list, GDB, tree, Docker, Kubernetes. Generic stuff: CS fundamentals, algorithms, data structures, math, file systems, storage, containers, Linux, shell, Jenkins, Git, LXC, cgroups, system calls, Raft, Go, distributed consensus.
Reverse linked list.
How does heap sort work?
Time complexity for putting n elements in a heap.
The following metrics were computed from 18 interview experiences for the Red Hat Software Engineer role in India.
Red Hat's interview process for their Software Engineer roles in India is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Red Hat's Software Engineer interview process in India.