
Terrance Caldwell
Senior Network Engineer @ Booz Allen Hamilton
About
📩 Preferred Contact: tcaldwel7@gmail.com (LinkedIn messages are not monitored regularly.) I’m a naturally curious network security engineer with a passion for understanding how things work — and how to make them work better. From an early age, I enjoyed taking things apart and putting them back together, and that curiosity evolved into a career solving complex networking and security challenges. Whether it’s sifting through logs, analyzing packet captures, or mapping traffic flows, I thrive on uncovering the root cause of problems and finding creative, efficient solutions. My experience spans troubleshooting unique network issues, optimizing performance, and improving security posture in high-stakes environments. I believe in resourcefulness — knowing when to apply deep technical expertise, and when to seek fresh perspectives from industry peers, technical documentation, or even unconventional sources like Google and Reddit. For me, every problem is an opportunity to learn and improve the network ecosystem.
United States
Arlington
Information Technology & Services
DMZ, Network Engineering, IPSec, Scripting, Automation, Security Architecture Design, Security Operations, Threat & Vulnerability Management, Amazon Web Services (AWS), Amazon EC2, Cyber-security, Research, IT Security Best Practices, Security Engineering, Communication, Python (Programming Language), Security, Problem Solving, Routers, Network Switches
Experience

Senior Network Engineer
Fort George G. Meade, Maryland, United States
Modernized perimeter and internal network security using Palo Alto NGFWs and segmentation strategies. - Authored design documentation for rulebase structure, change control procedures, and policy baselines. - Supported network optimization initiatives across classified and unclassified environments.

Professional Development
Arlington, Virginia, United States
Full-time study focused on network security and automation. Earned certifications in PCNSE, Python programming, and Security+ while deepening cloud security and Palo Alto architecture expertise through labs and self-driven coursework.

Network Engineer
Arlington, Virginia, United States
Deployed Palo Alto VM-Series firewalls in AWS VPCs with ELB integration to protect mission-critical applications. - Supported the cloud team by validating manual configurations to inform Terraform IaC templates. - Created reusable security policy templates aligned to DoD STIG and enterprise security standards.

Security Engineer
Washington, District of Columbia, United States
Configure, maintain, monitor and troubleshoot security systems including Palo Alto firewalls and IDS. Draft, update, and maintain system documentation. Review and revise security procedures and policies as needed. Analyze network traffic captures and logs in support of root cause analysis efforts to determine problems and develop remediation activities. Research, evaluate, and recommend new equipment and technologies. Review implementation of firewalls and make suggestions for improvement according to best practices.

Network Engineer
Hampton, Virginia, United States
Configure, troubleshoot, and maintain network environment to include Cisco Unified Computing System (UCS), Cisco router & switches, Palo Alto Next Generation Firewalls, SolarWinds, Cisco Identity Services Engine (ISE), NetApp Clustered Data Ontap, and other network management systems and the implementation of any subsequent and future releases.

Network & Computer Systems Administrator (Cyber Systems Operator)
Administered cyber, communications and Command and Control (C2) systems, including computer networks, servers, databases and applications, addressing interruptions to service and ensuring that systems are protected from outside threats.
Terrance Caldwell's Contact Information
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