Edge OS & Container Security Engineer

 Linux & OS hardening: Debian / Ubuntu administration, CIS Benchmark hardening, patching

 Containers: Docker, Dockerfile best practices, basic container security

 Vulnerability & open source: JFrog Xray (or Trivy / Grype), reading CVE reports, open-source licence

approval (OSSA)

 Networking: TCP/IP, VLANs, firewall rules (iptables / nftables), Docker networking

 Security research: following security news, CVE feeds and vendor advisories; summarising findings

clearly

 Scripting & documentation: Bash / basic Python; clear records and checklists

 Good to have: IEC 62443 basics, AppArmor, Secure Boot / TPM, MQTT with TLS; LFCS / RHCSA,

Security+