Looking for a job

Dheeraj Kumar

@dheerajkumar16

Message

I build secure, automated enterprise and 5G network infrastructure at scale.

United States

Message

What I'm looking for

I'm looking to build and secure scalable enterprise, cloud, and telecommunications networks, with opportunities to automate operations, strengthen Zero Trust security, and improve reliability and performance.

At T-Mobile, I design BGP and OSPF routing for 5G core infrastructure across 50+ nodes, improving convergence time by 35%. I also automate provisioning with Ansible, Python, and Netmiko, cutting manual configuration time by 70%.

I secure large-scale connectivity through Palo Alto NGFW policies, IPS rules, Zero Trust access controls, and IPSec/SSL VPNs serving 5,000+ remote users. My traffic analysis and capacity-planning work has reduced detection time by 45%, packet loss by 80%, and improved peak-period throughput by 25%.

Previously at Charter Communications and TATA Teleservices, I built MPLS WANs, resilient firewall environments, QoS policies, and cloud connectivity across Azure and AWS. I bring hands-on experience with network automation, vulnerability remediation, routing stability, and highly available enterprise infrastructure.

Experience

Work history, roles, and key accomplishments

Current

Network Engineer

Current

T-Mobile

Oct 2024 - Present (1 year 11 months)

Designed and deployed scalable BGP and OSPF routing architectures across 50+ network nodes supporting 5G core infrastructure, improving network convergence time by 35%. Implemented Palo Alto NGFW policies and IPS rules, reducing unauthorized access incidents by 60%.

BGP OSPF Palo Alto IPS SD WAN Viptela Ansible Python Netmiko IPSEC SSL VPN Wireshark NetFlow Zero Trust ZTNA

Network Engineer

Charter Communications

Mar 2023 - Sep 2024 (1 year 6 months)

Designed and maintained MPLS-based WAN infrastructure connecting 100+ enterprise customer sites, achieving 99.99% uptime and reducing latency by 30%. Implemented Cisco ASA and Fortinet firewall HA clusters and configured QoS policies for VoIP and video traffic.

MPLS WAN Cisco ASA Fortinet QoS VoIP Solarwinds SNMP Python BASH Nessus Metasploit BGP Confluence

Junior Network Engineer

TATA Teleservices

May 2021 - Jul 2022 (1 year 2 months)

Configured and maintained Cisco routers and switches across enterprise LAN/WAN environments, supporting 500+ end users. Implemented VLAN segmentation, STP, and inter-VLAN routing, and assisted in migrating on-premises services to Azure and AWS.