Systems Programming, Python, AWS, Rust, Bash, Network Routing, Kubernetes, Go, Spot-instance arbitrage, Global database replication, Cilium, Zero-Trust Security, Distributed Consensus, CAP theorem, eBPF, CKA, Service meshes, GCP Professional Architect, BGP routing, CPU pinning, Security Specialty, Chaos engineering frameworks, Istio, Linux kernel tuning, Infrastructure as code tools, Raft, Paxos, Cryptographic attestation