Linux (AlmaLinux / Debian / Ubuntu)
OS internals, service management (systemd), user/permissions, networking (ip/ss), config files, and security hardening. Comfortable with Bash scripting for automation.
Bash scriptsConfig filesHome-lab
Web & Servers
Hands-on with Nginx/Apache setup and tuning, reverse proxy & TLS basics, log review and troubleshooting — primarily from operating my browser game (SS-Travi).
NginxApacheProd ops (SS-Travi)
PHP
Read and understand existing code, trace data flow, and make targeted fixes. Strong grasp of application logic for troubleshooting and integration tasks.
Code readingBugfixesIntegration
Python
Comfortable reading and understanding Python code, adapting snippets, and using small utilities; less focus on building full apps from scratch.
UtilitiesCode reading
SQL & Databases
Regular work with MariaDB/phpMyAdmin for the game: schema changes, queries, basic performance tuning, backups and data hygiene.
MariaDBphpMyAdminProd data
Cloudflare (Edge & Security)
Practical configuration: DNS, caching, rules/page rules, basic WAF and rate-limiting for production web properties.
DNSWAF basicsCaching
Security Foundations
Log analysis, packet capture (tcpdump/Wireshark/tshark), scanning & enumeration (Nmap), MITRE ATT&CK mapping, Splunk basics. Applied in labs and home-lab exercises.
Wireshark/tsharkNmapMITRE
Web Fundamentals
Solid HTML/CSS knowledge from building and maintaining production sites and internal tools.
HTMLCSS
Business, Risk & Leadership
Experience in risk management from the claims domain, KPI ownership, system-wide thinking, and team leadership (20–25). Skilled at translating business impact into technical priorities.
Risk managementKPI-drivenStakeholders