Post Job Free
Sign in

Network Engineer Information Security

Location:
Decatur, GA
Posted:
September 29, 2025

Contact this candidate

Resume:

Public Content

REGINALD COOPER

Atlanta, GA, ****2

Mobile: 404-***-****; Email: ********.********@*****.*** LinkedIn: Reginald Cooper LinkedIn

PROFESSIONAL SUMMARY:

Dedicated and results-driven Systems & Network Engineer with 12+ years of technical knowledge and experience working as a Contractor within the DoD/Government public-sector. Possess expertise in assisting with, maintaining, and improving secure and efficient communication networks. *Looking for Contract or Full-time, Permanent employment.

TECHNICAL SKILLS:

Software: Microsoft Office Suite (Word, Excel, PowerPoint, Outlook, SharePoint, OneNote, OneDrive, Adobe Acrobat, Defender, Teams), Zoom, Webex, Splunk, Wireshark, Tanium, Tenable, iPost, Nmap, Xacta, Central Ops, SolarWinds

Operating Systems: Windows XP, Windows 7/10/11, MacOs Servers: Windows Servers 2012/2016

Network & Hardware: LAN/WAN, SNMP, Cisco Routers & Switches, Firewalls Other Tools: Remedy & ServiceNow Ticketing System

EDUCATION:

• Bachelor of Science Degree in Computer Information Systems, DeVry University, Decatur, GA, February 2000 (Graduated Magna Cum Laude)

CERTIFICATION(s):

• CompTIA Security+ CE (Information Security Professional) (Current)

• CompTIA Server+ (Server Hardware and Software Specialist) (Current)

• CompTIA A+ Certified Computer Hardware and Software Specialist (Current)

• CCNA (Network Associate) (Current)

• CCNP Security (Network Professional Security) (Current) WORK EXPERIENCE:

Systems & Network Engineer (Contractor), Mission Essential Group, Fairfax County, VA Aug 2024 – May 2025

• Monitor system performance indicators and traffic flows across the network to identify and resolve issues promptly.

• Develop and implement new system design procedures, test procedures, and quality standards

• Integrate new systems into the existing network architecture while adhering to design and quality standards.

• Operate and maintain the organization's LAN/WAN pathways, ensuring optimal performance and availability.

• Utilize network management tools (e.g., SNMP) to analyze network traffic patterns and conduct control system network analysis.

Public Content

• Troubleshot customer network outages using ServiceNow ticketing system.

• Ensure that security patches for commercial products are applied in accordance with management timelines and operational requirements.

• Provide feedback on network requirements, including architecture and infrastructure improvements.

• Create and update network infrastructure documentation. Computer Network Defense Analyst II (Contractor), Aperio Global, Reston, VA Mar 2024 – Jul 2024

• Provided timely detection, identification, and alerted possible attacks, intrusions, anomalous activities, and misuse activities.

• Assisted with developing mitigations to strengthen network defenses and protected against attacks on network infrastructure devices and systems.

• Utilized cyber defense tools (Splunk, Tanium, Tenable, iPost, Microsoft Defender, Nmap, Xacta, Central Ops, Wireshark) for monitoring and analysis of systems to identify malicious activity.

• Troubleshot customer network outages using ServiceNow ticketing system.

• Analyzed and identified malicious activity to determine weaknesses exploited, exploitation methods, and effects on systems and information.

• Conducted researched, analyzed, and correlated across various data sets.

• Received and analyzed network alerts from different sources within the enterprise.

• Performed cyber defense trend analysis and reporting.

• Characterized and analyzed network traffic to identify anomalous activity and potential threats.

• Coordinated with enterprise-wide cyber defense staff to validate network alerts.

• Identified applications and operating systems of network devices based on network traffic.

• Documented and escalated incidents that caused an ongoing and immediate impact to environment.

Senior Vulnerability Assessment Analyst (Contractor), Peraton, Inc., Chantilly, VA Mar 2022 – Mar 2024

• Provided support to system owners to propose mitigation and remediation solutions to identify vulnerability and security issues.

• Identified critical flaws in applications and systems that cyber attackers could exploit.

• Utilized automated tools (Splunk, Tanium, Tenable, iPost, Microsoft Defender, Nmap, Xacta, CentalOps, Wireshark) to pinpoint vulnerabilities and reduce risks.

• Utilized custom scripts and applications for vulnerability testing.

• Compiled and tracked vulnerabilities over time for metrics purposes.

• Wrote and presented vulnerability assessments and security reviews through a comprehensive process to identify weaknesses and vulnerabilities within the systems that affect the confidentiality, integrity and availability of electronic protected data at the Department of State. Systems Engineer IV (Contractor), Peraton, Inc., Springfield, VA Mar 2021 – Mar 2022

• Conducted requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability and analysis across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies.

• Developed solutions designs based on analysis of requirements and new technology and mentor Junior Engineers in developing these skill sets.

Public Content

• Conducted planning, analysis/traceability of user requirements, architectures traceability, procedures, and problems to automate or improve existing systems and review cloud service capabilities, workflow, and scheduling limitations.

• Supported the analyses and allocation of requirements to systems architecture components and executing programs.

• Assisted the Government in the capture and translation of mission and customer requirements/needs into systems/capability requirements and solutions.

• Assisted the Government in performing systems integration activities.

• Assisted the Government in strategic technical planning, performance engineering, risk management and interface design.

Cyber Infrastructure Support Specialist (Contractor), CSIOS Corporation, Rockville, MD Nov 2020 – Mar 2021

• Tested and evaluated solutions for advanced cyber operations applications.

• Analyzed systems to understand system functionality and identify potential defects, vulnerabilities, and inefficiencies.

• Collaborated with operational and technical Subject Matter Experts (SMEs) to identify gaps and develop recommendations to address these gaps.

• Fostered relationships with sponsors and end-users to define requirements of the operational environment and promoted system engineering activities for effective test and evaluation.

• Contributed to technical project evaluations and promoted good systems engineering practices and methodologies.

• Provided technical direction and mentored other team members.

• Utilized automated tools (Splunk, Tanium, Tenable, iPost, Microsoft Defender, Nmap, Xacta, CentalOps, Wireshark) to pinpoint vulnerabilities and reduce risk.

• Developed dashboards and ran ad-hoc, daily, weekly and monthly reports.

• Informed leadership of potential issues pertaining to the SPLUNK environment.

• Documented hardware/software configurations and kept them up to date.

• Evaluated, documented, and reported IT systems security posture and configuration for systems risk analysis.

• Utilized Splunk to produce vulnerability management reporting for systems to aid in compliance with Information Assurance Vulnerability Management (IAVM) policy.

• Supported Cybersecurity Operations, as required, monitoring responses and handling procedures for intrusion and malicious code incidents.

Cybersecurity Operations Analyst (Contractor), SkyePoint Decisions, Inc., Dulles, VA Feb 2020 – Oct 2020

• Provided diverse cybersecurity services that enforced, complied with, and supported the DOS cybersecurity directives, policies and procedures.

• Provided Cybersecurity services that may include, but are not limited to, policy development; security technical assessment; insider threat assessment; security architecture development; security engineering; certification and accreditation; security compliance, audit, assessment, and reporting services; vulnerability assessment and management; metrics consolidation and reporting; computer network defense (CND) operations, monitoring, and analysis; cybersecurity and IT systems and tools administration and maintenance; incident response, tracking, and resolution; cross-domain solutions support.

• Utilized automated tools (Splunk, Tanium, Tenable, iPost, Microsoft Defender, Nmap, Xacta, CentalOps, Wireshark) to pinpoint vulnerabilities and reduce risk. Public Content

• Developed dashboards and running ad-hoc, daily, weekly and monthly reports.

• Informed leadership of potential issues pertaining to the SPLUNK environment.

• Documented hardware/software configurations and kept them up to date.

• Performed Splunk systems maintenance, indexes and data retention.

• Monitored syslog servers and performed syslog NG administration.

• Utilized Splunk to produce vulnerability management reporting for systems to aid in compliance with Information Assurance Vulnerability Management (IAVM) policy.

• Evaluated, documented, and reported IT systems security posture and configuration for systems risk analysis.

• Supported Cybersecurity Operations, as required, monitoring responses and handling procedures for intrusion and malicious code incidents.

Technology Engineer (Contractor), Booz Allen Hamilton, Annapolis Junction, MD Mar 2019 – Feb 2020

• Provided network security analysis within customer’s operations and engineering teams.

• Provided technical support to cybersecurity personnel.

• Performed network monitoring via SolarWinds.

• Performed configuration of Cisco 2950 routers.

• Provided network security using AES 128-bit encryption.

• Provided risk management analysis and program protection for operations and engineering.

• Assisted with requirements and concepts of operation for cybersecurity.

• Assisted in program protection and information assurance aspects of systems operations.

• Ensured high quality deliverables to government and corporate customers.

• Collaborated with Cross-Bureaus and Agencies to implement network changes as they relate to perimeter security.

• Worked with staff agencies, departments, and corporate teams as required. Network Engineer (Contractor), SkyePoint Decisions, Inc., Dulles, VA Jun 2014 – Mar 2019

• Performed network security analysis within customer’s operations and engineering teams.

• Provided technical support for cybersecurity risk management policy formulation.

• Troubleshot customer network outages using Remedy ticketing system.

• Performed network monitoring via SolarWinds.

• Performed configuration of Cisco 891F-K9 routers for deployment.

• Assisted with removal of Cisco ASA 5505 firewalls and replacement with 891F-K9 routers.

• Provided network security using AES 128-bit encryption.

• Provided risk management analysis and program protection for operations and engineering.

• Assisted in program protection and information assurance aspects of systems operations.

• Ensured high quality deliverables to government and corporate customers.

• Provided technical training for security professionals as they provide operations and maintenance support to perimeter security devices.

• Collaborated with other agencies to implement network changes relating to perimeter security.

• Worked with staff agencies, departments, and corporate teams as required. Network Systems Engineer (Contractor), Apex Systems, Inc., Columbia, MD Apr 2014 – Jun 2014

Public Content

• Supported network operations by managing customer devices, identifying sources of problems, and resolving network configuration issues for the Maryland Social Security Administration.

• Performed root cause analysis, implementations and network configurations.

• Provided performance monitoring, interpretation, and reporting of any impacting issues.

• Assisted with installing, tuning, monitoring, and creating custom views of IBM Tivoli Netcool.

• Reviewed action plans for planned and unplanned changes to client's network and infrastructure.

• Interfaced with clients responding to client requests and notifying clients of network problems and business impacts associated with them.

• Collaborated with various internal groups to resolve client network and security issues. Network Systems Engineer (Contractor), TWD, Washington, DC May 2013 – Apr 2014

• Worked within a group of Engineers supporting NAVSEA (Naval Sea Systems Command) network infrastructure with Cisco equipment, such as Cisco 2900 series routers and ASA 5500 firewalls.

• Performed network monitoring via SolarWinds and Netcool applications for all network equipment and server systems.

• Ensured proper network configuration and standardization according to IA and C&A.

• Optimized current configurations to implement a more modular design concept with industry’s best practices.

• Ensured proper STIG compliance according to DoD guidelines for network equipment and NAVSEA servers.

• Effectively communicated with government civilians in efforts to brief network and system server equipment status.

Network Systems Engineer (Contractor), Artech Information Systems, Baltimore, MD Dec 2012 – May 2013

• Configured and maintained network routers (2800 and 2911 models) and switches (3750 and 3560 models) for customer Diageo.

• Performed server administration support for physical Windows 2003 servers and performed Server Farm cluster administration.

• Performed all system backups and restores using Symantec Backup Exec for server OS recovery.

• Performed troubleshooting analysis of servers and associated systems resources.

• Monitored system performance and implemented performance tuning.

• Undertook routine preventative measures to implement, maintain and monitor network security.

• Documented network problems and resolution for future reference

• Planned and implemented future IT developments and project work. Network Systems Engineer (Contractor), Verizon Business, Ashburn, VA Jun 2012 – Dec 2012

• Performed administration and troubleshooting efforts for network connectivity testing on Verizon’s business network.

• Assisted with the configuration and troubleshooting efforts of Cisco routers (2900 series router) and Cisco switches (3560 and 3750).

• Assisted in network data cleanup and identify any discrepancies with configuration of network equipment and database.

• Assisted with the recommendation of network equipment and software applications to improve Verizon’s overall network.



Contact this candidate