Mobile device farm operation, Android/iOS build and profiling toolchains, GPU cluster scheduling (Slurm, K8s device plugins, MIG), game engine internals/engine-level test automation, deterministic simulation/replay testing, live service game experience (or SaaS/PaaS/XaaS equivalent), Windows administration, Ansible, TypeScript/Java/Kotlin/Swift, hybrid/multi-cloud management. Build/operate on-prem build clusters (distributed compilation, caching, artifacts) and on-prem GPU clusters (scheduling, multi-tenancy, utilization), backing buy-vs-build with real data.