← Back to portfolio
Jerome Goldwin
Network Engineer
Thoraipakkam, Chennai, Tamil Nadu [email protected] +91 78713 13991 github.com/Jerome-Goldwin linkedin.com/in/jerome-goldwin

Summary

Network Engineer with hands-on experience running day-to-day IT and network operations in a live production environment. Strong working knowledge of firewalls, VPNs, proxies, and Linux systems, plus SIEM log monitoring with Graylog. CCNA-certified. Comfortable supporting 100+ users independently, resolving real incidents under pressure, and keeping business-critical systems stable with minimal downtime — with a growing offensive-security practice in Kali Linux and TryHackMe.

Experience

Network Engineer — Epicle Solutions Pvt. Ltd.
Chennai · May 2025 – Present
  • Manage enterprise network infrastructure: SonicWall firewalls, VPNs, proxies, file servers, and internal network services — administering firewall rules, content filtering, VPN access, and proxy configuration.
  • Diagnose and resolve production issues — VPN failures, DNS and path-access problems, ISP outages, firewall misconfigurations, and slow network performance.
  • Installed and configured Linux systems for logging and monitoring, including syslog and a Graylog (SIEM) pipeline with log rotation.
  • Handle user lifecycle management in Active Directory — account creation, access changes, password resets, deactivation — and provide on-site and remote support for 100+ users across multiple departments and regional teams.
  • Support security and compliance activities: access reviews, endpoint tracking, activity monitoring, and audit support.
  • Perform OS installation, imaging, and recovery; hardware diagnostics (BSODs, power faults); and basic CCTV operations (HikVision). Coordinate with ISPs and vendors to restore service during outages.

Selected Projects

SIEM log pipeline — SonicWall → Graylog
  • Wrote a Graylog parsing rule (key_value(), set_fields()) turning opaque firewall log strings into typed, queryable fields (action, source IP, port, protocol). Validated in the Simulator and connected to a live stream — the foundation for dashboards and alerting. Core SOC log-monitoring work.
Hyper-V host — headless bring-up & virtual networking
  • End-to-end build of a headless Hyper-V host with remote management over WinRM; internal virtual switch with host-side NAT (New-VMSwitch, New-NetNat) so VMs reach the internet without exposing the host NIC. Documented as a reproducible runbook.
Pharmacy Management System (Python + SQLite3)
  • Designed and built a simple pharmacy management application in Python with an SQLite3 backend, focused on practical data handling.

Certifications

Cisco Certified Network Associate (CCNA)
Cisco · 2023
Ethical Hacking & Cyber Security
Technobytes Technologies · Apr 2025
Pre Security
TryHackMe · Mar 2025

Education

B.Tech, Information Technology
Dr. Sivanthi Aditanar College of Engineering, Tiruchendur
Graduated 2024 · CGPA 7.61 / 10

Skills

Networking
Firewalls, Routing, DHCP, DNS, TCP/IP, VPN, Proxy filtering, Network troubleshooting
Systems
Linux (Arch daily-driver, comfortable across distros), Windows, basic server administration, log management
Tools
SonicWall, Active Directory, Proxmox, Hyper-V, Office 365, Squid Proxy, Cloudflare, WireGuard, Graylog, Nmap, n8n
Security
SIEM log analysis, access reviews, activity monitoring, audit support; Kali Linux & TryHackMe
Programming
C, Python (scripting & automation)