Summary
Overview
Work History
Education
Skills
References
Clearance
Certification
Timeline
Generic

Eric Sellers

Summerville,SC

Summary

Results-driven System Administrator with extensive experience in managing and optimizing computer systems. Proven track record in troubleshooting, software installation, and IT infrastructure maintenance, significantly enhancing operational efficiency. Demonstrated success in implementing robust security measures to safeguard data and improve user satisfaction through strategic planning. Committed to delivering impactful preventive maintenance and responsive support for consistent and profitable technology operations.

Overview

19
19
years of professional experience
1
1
Certification

Work History

Operations Engineer

CommIT
11.2021 - Current
  • Patched Windows Server in both the Production and Development environments
  • Responsible for creating and configuring accounts for all products and programs to include Jira, Confluence, Crowd, Jenkins and all others hosted on the MCBOSS platform
  • Created, maintained, and launched Amazon workspaces for customers that required them for access to MCBOSS
  • Regularly connected to and reviewed access logs on the F5 to help troubleshoot and resolve user connection issues
  • Setup User and group access and configuration in Splunk so users can view their required logs
  • Regular ongoing meetings with the Onboarding team to discuss MCBOSS requirements and directives for bringing in new customers
  • Setup Amazon Console Access for users to include roles for the users to be able to perform product builds
  • Provide support to all customers via the MCBOSS service desk and one on one communications with the customers
  • Provide technical support to Onboarding team

Operations Engineer

Geocent
07.2020 - 11.2021
  • Patched Windows Server in both the Production and Development environments
  • Responsible for creating and configuring accounts for all products and programs to include Jira, Confluence, Crowd, Jenkins and all others hosted on the MCBOSS platform
  • Created, maintained, and launched Amazon workspaces for customers that required them for access to MCBOSS
  • Regularly connected to and reviewed access logs on the F5 to help troubleshoot and resolve user connection issues
  • Setup User and group access and configuration in Splunk so users can view their required logs
  • Regular ongoing meetings with the Onboarding team to discuss MCBOSS requirements and directives for bringing in new customers
  • Setup Amazon Console Access for users to include roles for the users to be able to perform product builds
  • Provide support to all customers via the MCBOSS service desk and one on one communications with the customers
  • Provide technical support to Onboarding team

Field Engineer

SDV
04.2020 - 07.2020
  • Break-fix, new hardware, and system support for the DOJ FBI CJIS facility in Clarksburg, WV
  • Live senior help-desk call agent
  • 24 X 7 365 support required
  • This was a work from home position that required excellent personal time management and accountability

Pre-sales Solution Architect – Field Engineer

Vion
12.2018 - 04.2020
  • Pre-sales design, configuration, and execution support for the DOJ FBI CJIS facility in Clarksburg, WV
  • Break-fix, new hardware, and system support for the DOJ FBI CJIS facility in Clarksburg, WV
  • Business development with the FBI for Vion
  • This was a work from home position that required excellent personal time management and accountability

LINUX System Administrator

Tek Systems
07.2009 - 10.2019
  • Involved in spearheading worldwide implementation of remote ArcSight SOC for the Install, setup, and lock-down of Red Hat Enterprise servers
  • Built and configured Kickstart servers
  • Validated build cookbooks for RedHat servers
  • Setup, configured, and maintained Microsoft DFS (Distributed File System) servers
  • Used NIST USGCB RHEL Kickstart configuration file in addition to SCAP RHEL Desktop content

Cyber Security Engineer

Tygart Technology LLC
04.2018 - 11.2018
  • Short term contract to assist the Army Defense Forensics and Biometrics Agency with achieving their ATO (Authority to Operate)
  • Reviewed STIG guidelines and findings from the audit performed on the Army DFBA in order for them to achieve their ATO
  • Performed remediation and verification of results of the audit
  • Met with auditors to go over results and verifications and or POAMs

Cyber Security Engineer

Leidos
09.2017 - 04.2018
  • Performed weekly ACAS (Tenable Security Center) scans and reporting of results
  • Involved in and performed ongoing Sourcefire Defense Center IDS/IPS configuration and tuning
  • Weekly reviews and reporting of Splunk logs
  • Performed ongoing Bluecoat review and remediation

System Integrator

ATSG
07.2016 - 08.2017
  • Responsible for coordinating all parties involved in the CR (Change Request) process
  • Identified, verified required firewall rules
  • Identified, verified required storage requirements
  • Was involved in and followed up on issues found on regularly recurring security scans
  • Coordinate connection resources and efforts between the FBI and outside organizations

System Administrator - IA Security Analyst

F2SI
04.2016 - 07.2016
  • Implemented required IA initiatives in support of DOD Army IA requirements
  • Configured, setup, and locked-down of HP ProCurve Network Switches
  • Configured, setup, and locked-down of CISCO Network Switches
  • Set up the first initial IA program for this company
  • Implemented STIGs, Hardening, USGCB, FIPS, and DOD RMF across the organization

LINUX System Administrator

Mantech
02.2016 - 04.2016
  • Updated and patched both physical and virtual LINUX servers using RHEL Satellite as well as manual patching methods
  • Configured RHEL Satellite Server
  • Updated and patched JAZZ servers
  • Configured user account permissions

Senior Windows System Administrator

Sevatec
09.2014 - 01.2016
  • Maintained account and VPN access with our Fortigate VPN solution
  • Used firewall builder to add, create and modify firewall rules for the organization's aging IP based firewalls
  • Maintained, updated and patched SharePoint Server instances
  • Maintained, compressed, backed up, and regularly restored the MS SQL server
  • Installed, maintained, and patched Microsoft IIS server
  • Locked down and hardened Microsoft IIS server per DOD STIG requirements in order to achieve annual ATO
  • Worked side by side with independent third party accreditors to achieve, prove, and test compliance for our ATO
  • Windows Server 2003, 2008R2, and 2012R2 configuration, deployment, and maintenance
  • Windows laptop and workstation deployment and configuration
  • Responsible for management of BIND DNS
  • Maintain existing Active Directory configuration and Group Policies
  • Racked servers as well as running copper and fiber network cables to support new systems
  • Configure appropriate VLAN settings for all new systems on HP Procurve core switches
  • Inventory control and management
  • Successfully migrated to the latest version of McAfee EPO and Drive Encryption with zero downtime and ahead of schedule
  • Basic administration on RHEL servers
  • Responsible for print servers as well as network attached printers
  • Involved in migration from the existing 2003 Windows Active Directory Domain to the new Windows 2012R2 Active Directory Domain
  • Administer and maintain RHEL RHEV (KVM) servers
  • Migrating (P to V) old KVM to new VMWare servers
  • Weekly meetings with upper management and Government representatives to discuss status, issues, and milestones
  • Installed and deployed HP Web Inspect systems for event collection
  • DOD STIG and USGCB hardening on servers using GPO

Windows System Administrator

AcioNet
08.2013 - 09.2014
  • Windows Server 2003, 2008R2, and 2012R2 configuration, deployment, and maintenance
  • Windows Laptop and Workstation deployment
  • Maintained, updated and patched SharePoint Server instance
  • Maintained, compressed, backed up, and regularly restored MS SQL server
  • Installed, maintained, and patched Microsoft IIS server
  • Locked down and hardened Microsoft IIS server per DOD STIG requirements in order to achieve annual ATO
  • Responsible for management of BIND DNS
  • Maintain existing Active Directory configuration and Group Policies
  • Rack servers as well as running copper and fiber network cable to support new systems
  • Configure appropriate VLAN settings for all new systems on HP Procurve core switches
  • Inventory control and management
  • Basic administration on RHEL servers
  • Responsible for print servers as well as network attached printers
  • Administer and maintain RHEL RHEV (KVM) servers

Security Analyst

SGT, Inc.
10.2012 - 08.2013
  • Experience evaluating security vulnerabilities with regard to data & end user confidentiality as well as integrity
  • Reviewed and evaluated logs from multiple sources to include Windows, LINUX, IDS, and IIS logs
  • Successfully identified, monitored, mitigated, and performed threat intelligence for Google Image Cache poisoning and demonstrated a brown bag seminar for all NOAA SOC Analysts regarding the positive identification and detection of the distributed malware, its source, and behavior of the attack vector
  • Created and updated all responsible incident response reports (IR's) used by the NOAA Computer and Incident Response Team (N-CIRT) to investigate, analyze, monitor, and follow up for detection and containment
  • Interfaced with incident responders to provide necessary data for forensics and research of infected and reported systems
  • Worked with ArcSight ESM and ArcSight Logger to evaluate and determine potential anomalies and incidents to refer to the incident responders
  • Followed and researched security and threat trends through online research and continued self training

Security Analyst

Nangwik
11.2009 - 10.2012
  • Involved in spearheading worldwide implementation of remote ArcSight SOC for the entire NOAA organization monitoring 3500+ devices processing 10,000+ of events per second
  • Successfully identified, monitored, mitigated, and performed threat intelligence for Google Image Cache poisoning and demonstrated a brown bag seminar for all NOAA SOC Analysts regarding the positive identification and detection of the distributed malware, its source, and behavior of the attack vector
  • Created and updated all responsible incident response reports (IR's) used by the NOAA Computer and Incident Response Team (N-CIRT) to investigate, analyze, monitor, and follow up for detections and containment

ISSO - System Administrator

Intellidyne, LLC
12.2008 - 07.2009
  • Microsoft Windows 2003 R2 Cluster Server builds
  • Microsoft SQL 2005 Cluster server builds
  • Security review, compliance and lockdown of project servers
  • Responsible for complying with CJISS CAPP (Which is like the FBI’s version of DIACAP), STIG, and GoldDisk
  • Performed testing and compliance accreditation checks
  • Maintain satellite office VPN and Secure FTP
  • Maintain satellite office network, servers, and client machines
  • Maintain VMWare development environment

System Engineer

CSC
04.2007 - 11.2008
  • Built, configured, and maintained IBM Blade Servers
  • Built, configured, and maintained Dell Servers
  • Setup and configured Microsoft Windows 2003 (R2) servers
  • Setup and configure RedHat Servers
  • Setup and configured CommVault for both LINUX and Windows servers
  • Setup and configured Tumbleweed Secure FTP Server
  • Setup MySQL HA Cluster with Round Robin Load Balancer
  • Configured Active Directory
  • Configured LINUX to use Active Directory

System Administrator

Qss Group Inc.
10.2005 - 03.2007
  • Built, configured, and maintained Intel Blade Servers
  • Built, configured, and maintained HP Blade Servers
  • Setup and configured both Symantec and McAfee antivirus suites
  • Setup and configured Microsoft Windows 2000 and 2003 (R2) servers
  • Setup and configured Red Hat Server versions 3 – 5.1
  • Setup network teaming / bonding for users
  • Setup and manage ISCSI storage appliances
  • Installed, configured, and maintained VMWare VI3 (Virtual Infrastructure)
  • Setup, configure, evaluate, review, and recommend new and up and coming technologies for the Coast Guard data center
  • Setup and configured multiple gateways in support of blade servers and VMWare
  • Apply security lock-down and required security and OS patches
  • Create cost breakdowns and quotes for customers
  • Interfaced with many leading IT vendors to build and maintain contacts in the IT market to aid in research and development
  • Used Rational Robot for automated testing of patches and deployments of software
  • Used Rational Clear Quest for bug/issue tracking with patches
  • Interfaced with customers directly in strategy planning and deployment meetings

Education

High School Diploma -

Jefferson High School
Shenandoah Junction, WV
05-2019

Skills

  • Knowledge of Hardened Computing Environments
  • STIG Compliance
  • Proficient in SCAP
  • Proficient in ACAS Scans
  • Effective Remediation Strategies
  • Server Configuration
  • Server Installation
  • Server Management
  • DOD Compliance Monitoring
  • Windows 2016
  • Windows 2019
  • Windows 2022
  • Active Directory Administration
  • Group Policy Management
  • Account Management
  • System Configuration Management
  • Security Vulnerability Patching
  • Red Hat Enterprise Linux Expertise
  • WSUS Management Proficiency
  • PowerShell Scripting Expertise
  • Proficient in McAfee ePolicy Administration
  • AWS Workspace Administration
  • Security compliance

References

Available upon request

Clearance

Active Top Secret

Certification

  • CompTIA Security Plus

Timeline

Operations Engineer

CommIT
11.2021 - Current

Operations Engineer

Geocent
07.2020 - 11.2021

Field Engineer

SDV
04.2020 - 07.2020

Pre-sales Solution Architect – Field Engineer

Vion
12.2018 - 04.2020

Cyber Security Engineer

Tygart Technology LLC
04.2018 - 11.2018

Cyber Security Engineer

Leidos
09.2017 - 04.2018

System Integrator

ATSG
07.2016 - 08.2017

System Administrator - IA Security Analyst

F2SI
04.2016 - 07.2016

LINUX System Administrator

Mantech
02.2016 - 04.2016

Senior Windows System Administrator

Sevatec
09.2014 - 01.2016

Windows System Administrator

AcioNet
08.2013 - 09.2014

Security Analyst

SGT, Inc.
10.2012 - 08.2013

Security Analyst

Nangwik
11.2009 - 10.2012

LINUX System Administrator

Tek Systems
07.2009 - 10.2019

ISSO - System Administrator

Intellidyne, LLC
12.2008 - 07.2009

System Engineer

CSC
04.2007 - 11.2008

System Administrator

Qss Group Inc.
10.2005 - 03.2007

High School Diploma -

Jefferson High School

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Eric Sellers