Network Security Consultant
Resume:
Duane Brown
******@*****************.***
Summary
Highly accomplished Network Security Consultant with 10+ years of experience securing complex IT and OT environments across diverse sectors, including corporate, manufacturing, banking, and oil & gas. Proven ability to assess vulnerabilities, implement tailored remediation strategies, and deliver secure, efficient solutions. Expertise in designing, configuring, and maintaining secure LAN/WAN networks, managing identity solutions, and automating security processes. Adept at collaborating with cross-functional teams, communicating effectively with executive leadership, and driving compliance with industry standards. Passionate about staying ahead of emerging threats and leveraging cutting-edge technologies to protect critical infrastructure.
Certifications
● Master’s Degree in Business Operations
● Bachelor’s Degree in Information Security Systems
● Cisco Cyber Threat Management Certification
● Cisco Intro to Networking Certification
● Cloud Security Essentials (C SE)
● TWIC (TSA Security) Certification
Professional Experience
Network Security Consultant
Simplified Techish, Remote (Texas)
April 2023 – Present
● Spearheaded the design, configuration, and maintenance of secure LAN/WAN networks, ensuring IT security compliance and mitigating vulnerabilities, resulting in a reduction in security incidents.
● Developed and delivered cybersecurity training programs for employees, covering password management, separation of duties, and role distinctions, improving employee awareness by 95% based on post-training assessments.
● Streamlined ITIL-based processes to enhance service delivery and achieve SLA compliance, increasing service availability .
● Proactively assessed and remediated network outages, coordinating with vendors and internal teams to minimize downtime and prevent security incidents, reducing average
● Authored detailed technical documentation for stakeholders, ensuring clarity and precision, improving knowledge sharing and reducing support requests .
● Continuously monitored security events and incorporated industry trends into security practices, proactively identifying and mitigating potential threats. Sr. Solution Engineer
Plains All American Pipeline, Houston, TX
January 2022 – March 2023
● Researched and evaluated AI applications, assessing organizational risks and providing recommendations to executive leadership.
● Developed and maintained comprehensive infrastructure documentation and playbooks, improving team efficiency and reducing onboarding time .
● Presented network layouts and security strategies to executive leadership, providing strategic guidance on future implementations.
● Addressed OT/IT integration and vendor management risks, implementing new security protocols and training teams on emerging threats.
● Conducted network assessments for acquired businesses, aligning workflows with global security standards and ensuring seamless integration.
● Automated key security processes using Ansible and Python, improving efficiency and reliability.
TAC Enterprise Wireless
Cisco, Dallas, TX
May 2021 – September 2021
● Troubleshot and supported AireOS and Catalyst WLC wireless solutions, resolving 500 plus critical customer issues.
● Configured CU deployments for optimal performance, improving network throughput.
● Served as a technical resource and conducted Root Cause Analysis (RCA) for networking issues, identifying and resolving over 200 root causes.
● Participated in case review calls and provided high-severity escalation support, reducing customer downtime.
● Analyzed network issues using Wireshark and TCP Dumps, demonstrating strong diagnostic skills and resolving complex network problems. Network Security Engineer
British Telecom - America
July 2018 – April 2021
● Presented threat assessments in CAB meetings and provided remediation strategies, resulting in multiple vulnerabilities being addressed.
● Conducted incident response to isolate threats and prevent outages, minimizing downtime .
● Supported North America and Canada operations with a focus on compliance and security, ensuring 100% compliance with regulatory requirements.
● Implemented and monitored security tools and policies, ensuring robust defense mechanisms and preventing hundreds of potential security breaches.
● Upgraded Cisco routers, switches, and wireless controllers to maintain infrastructure integrity, improving network performance by 100%.
● Participated in Service Restore Team (SRT) calls and collaborated with vendors for issue resolution, reducing service restoration time by 70%. Network Operations and Field Engineer
GTT Communications / TNI Telecom / Chase
May 2013 – July 2018
● Provided Tier 2 & 3 support for 200 plus client sites, troubleshooting OSPF and BGP and resolving complex network issues.
● Installed and configured network hardware, including 1000 plus Cisco routers and switches, ensuring seamless network integration.
● Ensured SLA compliance for over 4,000 store locations, meeting stringent deadlines and maintaining 98% uptime.
● Managed equipment refresh for 200 branches, including routers, VOIP phones, and servers, completing the project on time and within budget.
● Configured advanced routing and switching technologies, ensuring seamless operations and improving network performance.
● Documented network settings and maintained system compliance, ensuring 100% accuracy and adherence to standards.
● Collaborated with remote technicians and vendors to resolve connectivity issues, including T1, reducing resolution time by 70%.
● Developed Cisco IOS configurations to adhere to detailed network designs, ensuring consistent and reliable network operation.
● Installed emergency backup systems to ensure network reliability during outages, minimizing downtime.
Skills
Core Security Skills: Network Security, Vulnerability Assessment, Incident Response, Threat Management, Security Auditing, Risk Assessment, Security Architecture, Compliance (e.g., ITIL), Identity Management (SSO, MFA), Security Awareness Training Technical Skills: LAN/WAN Design & Troubleshooting, Wireless Network Management (Cisco AireOS, Catalyst WLC), Cloud Security (Azure/Entra Active Directory), Automation (Python, Ansible), Network Monitoring Tools (Wireshark, TCP Dumps, SolarWinds), Cisco Routers & Switches
Consulting Skills: Solution Architecture, Client Engagement, Process Optimization, Technical Documentation, Presentation Skills
Industries: Corporate, Manufacturing, Banking, Oil & Gas
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