Network Security
FortiGate firewall administration — policy & NAT rules, SSL and IPSec VPN tunnels, and continuous monitoring of security posture.
Available for opportunities
Hi, I'm Dinesh Kumar S
Network Support Engineer
I keep enterprise networks fast, secure, and always on — FortiGate firewalls, LAN/WAN infrastructure, and VPN tunnels — backed by Azure cloud and automation skills.
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Years of experience
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Professional roles
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Govt & enterprise clients
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Certifications
01 · About me
A little bit about me
Network engineering at the core — with cloud and automation as force multipliers.
I'm an IT graduate (B.Tech, Information Technology) with hands-on experience in network engineering, security, and infrastructure support. My work spans configuring and troubleshooting enterprise LAN/WAN networks, administering FortiGate firewalls — policies, NAT rules, SSL & IPSec VPNs — and keeping routers, switches, and servers healthy.
I've supported critical government network deployments — including the TamilNadu Legislative Assembly Elections — handling connectivity, cable management, and rapid on-site fault resolution under real pressure.
On top of that, I bring Azure cloud and automation experience — managing VMs and AVD environments with PowerShell and Azure CLI — so I can bridge on-prem networks with the cloud.
- Enterprise LAN/WAN configuration and troubleshooting
- FortiGate firewall policies, NAT rules, SSL & IPSec VPN
- Routing, switching, DHCP/DNS, and server configuration
- Azure VM & AVD operations, monitoring, and automation
02 · What I do
Services & strengths
Networking first — supported by cloud and automation.
Network Infrastructure
End-to-end LAN/WAN support — routers, switches, structured cabling, DHCP/DNS, and rapid diagnosis of connectivity issues.
Monitoring & Incident Response
Watching links, tunnels, and dashboards — proactive alerting, first-line triage, and clear escalation with detailed handover notes.
Cloud Operations
Managing Azure VM fleets and AVD host pools — lifecycle, patching, health monitoring, and alert response with Azure Monitor & Log Analytics.
Automation & Scripting
Reducing manual toil with PowerShell and Azure CLI — scheduled tasks, bulk operations, and reporting for faster, error-free changes.
Cost Optimization
Right-sizing resources, scheduling non-production shutdowns, and reviewing usage reports to keep infrastructure bills lean.
03 · Skills
Tools & technologies
A deep networking stack — plus the cloud tools that complement it.
Core Networking
- Routing & Switching
- LAN / WAN
- DHCP / DNS
- IP Addressing
- Subnetting
- FTP & TFTP
- Server Configuration
Network Security
- FortiGate Firewall
- Policy & NAT Rules
- SSL VPN
- IPSec VPN
- Monitoring
- Troubleshooting
Cloud & DevOps
- Microsoft Azure
- Azure Virtual Machines
- Azure Virtual Desktop
- Azure CLI
- PowerShell
- Azure Monitor
- Log Analytics
04 · Experience
Where I've worked
From network internships to production operations.
DevOps Support
Oct 2025 – Mar 2026Anunta Technology Management Services Ltd
- Managed Azure Virtual Machines across multiple environments following defined operational procedures.
- Executed VM lifecycle activities including start, stop, deallocation, and health monitoring.
- Automated routine VM operations using Azure CLI and PowerShell, reducing manual intervention.
- Supported Azure Virtual Desktop (AVD) environments including host pool and session host operations.
- Monitored infrastructure health using Azure Monitor and Log Analytics and responded to alerts.
- Assisted in cloud cost optimization through scheduled VM shutdowns and resource usage reviews.
Network Engineer Support
Mar 2025 – May 2026TamilNadu Legislative Assembly Elections, Secretariat
- Assisted in configuring and maintaining LAN/WAN networks, routers, switches, and internet connectivity.
- Monitored network performance and resolved connectivity issues to ensure uninterrupted communication.
- Performed system checks, cable management, and hardware support for desktops, printers, and network devices.
Onsite Administration Support
Jul 2024 – Feb 2025Mentor Infocomm India Pvt Ltd
- Provided onsite administration support for government entities including CMWSSB, TWAD, TROZ, TNHRCE, DPI, and GCC.
- Managed day-to-day operations, coordinated meetings, and facilitated communication between departments and boards.
- Improved key metrics by implementing efficient processes and streamlining communication channels.
Trainee Network Support Engineer
Jul 2024 – Feb 2025Mentor Infocomm India Pvt Ltd
- Assisted in troubleshooting network issues through initial analysis and problem diagnosis.
- Installed and configured network hardware and software for clients, ensuring compatibility and functionality.
- Participated in network monitoring and maintenance to ensure stability and security.
Trainee Network Support Engineer
Mar 2024 – Jun 2024Mentor Infocomm India Pvt Ltd · Internship
- Assisted in troubleshooting network issues and offering solutions under the guidance of senior engineers.
- Participated in the configuration and installation of network equipment like routers, switches, and firewalls.
05 · Education
Academic background
The foundation everything else is built on.
B.Tech — Information Technology
Agni College of Technology, Chennai
CGPA 8.23Class 12th (HSC)
Eve Matriculation Higher Sec School
66%Class 10th (SSLC)
Eve Matriculation Higher Sec School
70%
06 · Certifications
Certifications & achievements
Validated knowledge, always growing.
Government Network Deployment
Supported TN Legislative Assembly Elections network infrastructure
Enterprise Client Support
Onsite network support for CMWSSB, TWAD, TNHRCE, DPI, GCC and more
AWS Certified Cloud Practitioner
Amazon Web Services · Valid until July 6, 2027
Object Oriented System Design
Using UML, Java & Patterns · NPTEL Certification
07 · Contact
Let's work together
Open to opportunities in Network Engineering, Security, and Cloud. Drop me a line — I usually reply within a day.