Network and systems engineer, HSIA and NOC.
I work where network operations meets Linux: Wi-Fi infrastructure, gateways, authentication and the ISP links behind them.
I am a network and systems professional working in High-Speed Internet Access (HSIA) and Network Operations Center (NOC) support, with hands-on experience in Wi-Fi infrastructure, Linux-based gateway systems, network troubleshooting and service operations.
My technical experience includes captive portal platforms, RADIUS authentication, DNS troubleshooting, TCP/IP networking, access point connectivity, network monitoring and firewall environments. I investigate connectivity issues, analyze system and network behavior, support service restoration and document what I find.
I am continuing to build my skills in network security, firewall administration, Linux automation and infrastructure troubleshooting, with the goal of growing into a Network Security Engineer role.
This website documents my experience, projects, troubleshooting methods and continuous learning.
Areas of focus
- Network engineering. Routing, switching, VLANs, STP, HSRP, LAN, WAN and WLAN.
- Network security. FortiGate, SonicWall, firewall policy, NAT and IPsec VPN fundamentals.
- Linux & infrastructure. Ubuntu and CentOS, service troubleshooting, Nginx.
- Network access. RADIUS, captive portals and Wi-Fi connectivity.
- Monitoring & diagnostics. SolarWinds, Wireshark, packet captures and incident analysis.
- Automation. Ansible, YAML, Git and network configuration management.
- Cloud. AWS fundamentals and Linux-based cloud deployments.
What I use, and what I'm learning.
Working skills are separated from learning goals. I only list a skill as working when I have used it for real.
Networking
Security
Systems
Authentication & HSIA
Monitoring
Automation
Cloud
Certificates
Currently learning
Certificates.
Cisco Certified Network Associate
Issuer: Cisco
Microsoft Certified Solutions Expert
Issuer: Microsoft
How I troubleshoot.
Detect
Confirm the symptom: who is affected, since when, and what changed. Pull logs and routes before touching anything.
Reproduce
Recreate it from the affected side with ping, traceroute and curl. If I can't reproduce it, I don't understand it yet.
Isolate
Walk the layers bottom-up and halve the search space at every step.
Remediate
Make the smallest change that fixes it. No broad change for a narrow fault.
Verify and document
Prove the fix with the same test that failed, then write it down so nobody repeats the hunt.
Let's talk about your network.
I'm open to network engineering and network security roles. The quickest way to reach me is LinkedIn.