Senior System Administrator
Resume:
Recardo Millwood
Laurel, MD
advnub@r.postjobfree.com
SUMMARY
System Administrator with 8+ years. Utilized my skillset working for the United States Military, and private corporations to provide network and infrastructure support by ensuring all systems and databases were created, tested, and monitored for efficiency. Proficient in assessing and evaluating operational security and security designs to achieve industry-standard certifications and mitigate potential risks. Current Security + CE Certification and Active Security Clearance.
KEY SKILLS
NETWORK INFRASTRUCTURE SUPPORT; VULNERABILITY MONITORING; TESTING; TROUBLESHOOTING; TICKET DEVELOPMENT; CUSTOMER & LEADERSHIP SUPPORT; OPERATIOINAL SECURITY ASSESSMENT
TECHNICAL SKILLS
Protocols & IP: DHCP, TCP/IP, DNS, FTP, NELNET
APIs & Networks: IP, LAN, WAN, VLAN, ISP, MPLS, VPN, WIRELESS LAN, FIREWALLS
Operating Systems: Android, Apple IOS, Unix, Linux, Windows
Languages & Software: Java, SQL, Python, Azure, Perl, Splunk
EXPERIENCE
Active Security Clearance 01/2020-Present
Senior Systems Administrator
Onyx Defense Systems
Aberdeen Proving Ground, MD 01/2022-Present
Providing the essential software support, including the configuration of hardware devices and virtual machines, testing new software and designing the structure of the network.
Testing Windows and Unix operating system software, networking software and computer hardware.
Providing support in resolving system / network issues with other teams.
Ensuring long-term requirements of systems operations and administration are included in the overall information systems planning of the organization.
Handling the installation, maintenance, configuration, and integrity of computer software.
Implementing operating system enhancements that improve the reliability and performance of the system.
Administering, operating, managing, establishing, configuring, optimizing, and monitoring enterprise level applications and tools for monitoring management.
Administering network monitoring capabilities using government-provided monitoring tools (Orion SolarWinds, Microsoft SCOM, NetIQ AppManager) on large classified and unclassified network enterprises.
Assisting the government with planning, setup, deployment, upgrade, maintenance and migration of network monitoring capabilities on large network enterprises.
Providing technical expertise in troubleshooting alerts/incidents, resolving issues based on mission priorities and working with PMOs / vendors to obtain support as required.
Supporting the remediation of network vulnerabilities.
Technical Support/Customer Service
Bowie State University, Bowie, MD. 08/2017-01/2022
Creating logical volumes, extending the file systems using LVM.
Perform day-to-day operational maintenance, respond to support requests and incidents, create and deploy application installations/upgrades and security updates running on Linux Platforms.
Design and build infrastructure, Install, configure and maintain workstations and servers including web servers in support of business processing requirements, perform software installations and upgrade to Operating Systems (O/S), layered software packages.
Gained in-depth knowledge of products and systems to provide assistance to customers related to activated services
Provide complete activation and post activations support to multiple external customers with oversight remotely
Investigate and research issues, determine impact, and provide remediation and document Root Cause Analysis (RCA) when required.
Maintained and supported the network infrastructure by updating all systems and databases with attention to detail
Installed and interconnected network infrastructure
Use active listening and probing question skills to help troubleshoot and resolve customer technical issues
Created tickets for maintenance while responding to remedy incident tickets
Access the company databases and provide instructions to customers to determine the root cause of their problem
Partnered with several departments to deploy an internal ticketing system to create, update, close, and view customer records
Conduct vulnerability assessments on premises and cloud systems.
Conduct routine hardware and software audits of workstations, develop and maintain, Troubleshooting and upgrade Linux O/S.
Monitored System Activities like CPU, Memory, Disk and Swap space usage to avoid any performance issues.
able to search, use fields, create alerts, use look-ups, and create basic statistical reports and dashboards in either the Splunk Enterprise or Splunk Cloud platforms.
Linux System Administrator
9-Solutions, INC, Lanham, MD 10/2013-08/2019
Create and deploy application installations/upgrades and security updates running on Linux platforms.
Installed and configured Red Hat Enterprise Linux 6 servers and Cent OS 6 &7
Administered user accounts, passwords, file permissions based on corporate policy.
Executed documentation, Tracking of issues, logs and audit files
Installed and implemented new patches Red Hat Linux 6 systems
Applied Open Source application and troubleshooting plans
Performed Live upgrade/disk management-LVM.
Worked with basic shell scripting
Hands on with Linux file system, and directories. and vi editor
Worked with setting up Cron Jobs
Worked with Logical volume management.
Worked with Pkg management tools and repositories.
Ability to communicate effectively verbally and in writing
Worked with web application installation using yum
Knowledge of automation and configuration management tools such as Ansible and Terraform.
OE2/2nd Lieutenant
United States Army 10/2008-12/2013
U.S Army Chaplain and Administrator: United States Army.
Responsible for the spiritual well-being of Soldiers and their Families, consisting of over 1,500 Men & Women.
United States Navy 10/1997-3/2005
USN Hospital Corpsman E-4, MCBH: Kaneohe, Hawaii: United States Navy.
Perform, and trained personnel in Emergency Medical Procedures and Protocols.
Senior Medical Assistant to Medical Officers, and Physicians.
EDUCATION
American Intercontinental University
Hoffman Estates, Illinois
Masters Information Technology-Cybersecurity 09/2020
Bachelor’s in Business Administration 08/2016
CERTIFICATIONS
CompTIA Security+ Certified 07/2020
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