Sean O Johnson

**** ******* ***** **

Upper Marlboro, MD 20774

301-***-**** cell

adq523@r.postjobfree.com

OBJECTIVE: To pursue a prosperous career in the Information Technology Field, where my skills and knowledge are utilized to accomplish the company’s objectives and to assist in future technology advancements of the corporation.

CLEARANCE: TS/SCI (Active)

EDUCATION:

Network Information Systems Certificate - TESST College of Technology

University of MD - Computer Science Bachelors (Estimated Graduation Fall 2023)

VMWare Training

NetApp ONTAP 9

ACAS

Splunk Infrastructure

CAREER ACHIEVEMENTS:

CDNA

Security+

CASP

CEH

AWS Security Fundamentals

CYSA

Splunk Fundamentals

EXPERIENCE:

RCG/CACI/OBXTEK (Dept. Of Treasury HQ) September 2016-Present

System Engineer /Deputy PM December 2010-August 2013

Provide Tier 3 support for various enclaves within Dept. Of Treasury

Validate official images for production to include Win7/10 & Win2K12/16

Utilize VMWare VSphere to test various applications and images to ensure compatibility and functionality

Administer Active Directory and Group Policy (GPO)

Remediate and POAM any outstanding ACAS findings

SCCM to deploy and install Microsoft Security updates on Microsoft Server 2008R2, 2012 and 2016

Mange VMware, Citrix Desktop, Active Directory and Wyse Device Manager

Test monthly patches on various platforms before enterprise deployment

Troubleshoot system problems caused by various issues: GPOs, security software, patches, antivirus, new implementations, etc.

Provide basic knowledge of Microsoft Active Directory, networking and security concepts

Handle personnel-related matters for assigned staff members including interviewing, hiring, scheduling, training, coaching, evaluating, counseling, and discharging

Administer Splunk dashboards and maintenance

STIG/Harden all objects on the domain

Administer and monitor Network Storage via NetApp On Command System Manager 9

Backup and restore virtual environment via Cohesity

Amazon Backups, manage vaults and vault tags

Maintaining strict IT configuration control over the contract life to include policies, procedures, and hardware/software

Sotera Defense (TSC/Darpa) February2015 – September 2016

Systems Engineer

Manage, resolve, and/or escalate Production Support issues coming in via application alerts, phone calls and escalated tickets while maintaining a high degree of professionalism and attention to Customer Service Excellence

Manage and maintain Orginizational Units in Active Directory

Ensure virtualization systems are compliant within required security standards, and Supports security planning; assessment; risk analysis; and risk management.

Manages the change request (CR) process for information assurance group enterprise-wide and provides recommendation for client approval/disapproval.

Conducts continuous monitoring activities for compliance utilizing assured compliance assessment solution (ACAS), Host based Security System (HBSS) scans, publishing output to Continuous Monitoring and Risk Scoring (CMRS.)

Leverages Risk Management Framework (RMF) process, review and determine if system/application documentation is accurate, up to date and displays thorough details that provide a clear security posture of the system/application being assessed.

Build, configure, and maintain Windows servers

Install, configure, and manage VMware vSphere environment: vCenter, hypervisor on new hosts, virtual machines, datastore creation and maintenance

Perform system hardening for Certification and Accreditation

Troubleshoot virtualization issues; working with other members of network, storage, etc. as needed

Provide engineering expertise to support the development of designed engineering solutions in a controlled test laboratory

Respond to emergency and time-sensitive requests both during and after business hours. - Upon request, be on call 24x7 (on a rotating basis)

Participate in and provide support for change request implementation

Create written documentation of server configurations and planned changes (design documentation).

Nessus Vulnerability Scanning and remediation

Wyle Technology/Ace Info(Census Bureau) August 2013- February 2015

Systems Engineer 3

Maintain AD user accounts, file shares and printing

Build, maintain and manage Windows 2008 and 2012 Server

Build and administer Window Clustering

Designing, deploying, and maintaining VMware hosts, farms, and guests.

Backup & Restore management of the Virtual and Blade servers

Manages Group Policy and provide server administration

Monitor backups and resolve failures

Manage Active Directory Database (SYSVOL)

Install, maintain and administer MS IIS web Servers, Trend Micro and Microsoft SQL databases

Create and maintain Organizational Unit (OU) design

Maintains FISMA Standard Operating Procedures (SOP) to be reflective of current processes, tools and requirements.

Analyzes FISMA audit results and briefs to HHS upper management (Chief Information Security Officer, CISO) to facilitate remediation of vulnerabilities across the department

Monitors systems performance and troubleshoots problem areas as needed

Deploying Windows server updates via WSUS

Maintain security, backup, and redundancy

Produce system documentation and provide status reports related to detailed project plans

Provide enterprise-wide network IDM, directory services (DS), server support for the Census Bureau Headquarters (HQ),National Processing Center (NPC),Regional Offices (ROs),

Build, administer and deploy new Virtual Servers in Vsphere

Chenega Federal Systems, Lorton, VA (Army Space Program Office)

Lead System Administrator (ASPO)/Information Management Officer (IMO) August 2008 – December 2010

Manage 3 networks Niprnet, Siprnet, and JWICS (specifically: all e-mail functions, setting up print queues, backup capabilities, file and application services, security services, anti-virus functions, patching and updating functions, configure users, machines, groups and servers through Active Directory, setup GPO to deploy through the network to update network machines. Provide web capabilities and remote access to the network).

Lead a team of three (3), comprised of administrators and helpdesk, in day to day operations to include helpdesk and desktop support, system administration and engineering, information assurance, storage and backup administration.

Oversee vulnerability audits, security patches and anti-virus updates; provide Information Assurance (IA) support by analyzing vulnerability and implementing corrective measures to include applying group policies in Active Directory

Configured and maintaining our Senforce Security Server to disable wireless connections in the SCIF.

Manage and monitor all installed systems and infrastructure

Offer expert engineering support by utilizing basic principles of defining the scope, analyzing possible solutions and providing input on request for proposals to ensure costs were managed based on previously defined requirements

Implement and maintain backups

Monitor and troubleshoot controlling networks, bandwidth, hardware and software resources

Provide help desk support to include problem solutions and user satisfaction

Install and troubleshoot VTC equipment for all three networks (secret, top secret, classified).

Maintain Exchange Servers for Sipr and JWICS

We provide Desktop Support for Army Space Program Office such as (image machines, install patches and fixes, modify accts through Active Directory, install printers, configure blackberries, install various apps and software, and we install hardware components as well).

As the IMO (Information Management Officer), I am responsible for several duties, including advising the commander, coordinating with higher headquarters such as the DOIM with spreadsheets and taskers, and ensuring computer and communications security throughout the organization.

Document and maintain proper “Courses Of Action” for mission critical patching

Seta Inc. Ft. Belvoir, VA (Defense Threat Reduction Agency)

Information Assurance/System Administrator June 2005–August 2008

Managed the supervision of the DTRA Executive Support Team for DTRA’s Director and Deputy Director along with other High Profile Customers at DTRC\ HQC Facility

Ensured that Executive office Hardware and Software met Life-Cycle Recycle upgrades and Software Updates/Patches Requirements

Configured Laptops with DTRA Unclassified Remote Access Software to support customer on Travel in state and abroad Tested customers network drops to ensure of their connectivity using a class and unclass laptop

Populates and distributes internal Operating Division (OPDIV) FISMA performance dashboards, develops communications to accompany dashboards and, in collaboration with HHS staff, and responds to all related inquiries.

Lead a team with the installation and configuration of the domain controllers, file servers, and print servers.

Operating System migration(s) from Windows 2000 Server to Windows Server 2003

Managed technical services of Windows network infrastructure, including Active Directory, Group Policy, WSUS and SMS

TCS Inc. Fort Belvoir, VA (Army Director Of Information Management)

Desktop Support Lead /System Administrator July 2003 –June 2005

Provided technical support activities which included user account administration, monitoring production processing servers and environments (200-300 distributed servers), configuration management, tape operations, storage management, and operational support and maintenance of Windows processing environments.

Provided Desktop Support for the Ft. Belvoir installation as well as various organizations off-site as far as (imaging machines, installing patches and fixes, creating machines names and modifying user accounts through Active Directory, installing printers, installing various applications and software, installing various hardware components, installing and configuring blackberries & palms, and configuring and setting up MS Outlook and email profiles for customers

As part of the NCR-DOIM helpdesk we provided phone support for the following installations (Ft. Belvoir, Ft. Meade, Ft.McNair, Ft. Myer, and Ft. Hamilton) through the use of Active Directory and Remedy User.

Install and configure (Defense Messaging System) for class and unclassified users. This consist of installing fortezza card readers, installing and configuring the DMS software, setting up customers profiles under DMS, and supporting the clients afterwards.

Install and Configuring of the VPN software, so that customers when they go TDY, or working from home can still access the Belvoir network.

Install and Configuring of the CAC card readers, so that our clients can send digitally signed and encrypted messages.

Administration of the Windows 2000/ XP operating systems and its services such as Exchange Messaging, DNS, File and Print Services, Outlook Web Access, VPN Server Services, Intranet as well as the Extranet.

Experienced in the support of the Blackberry Exchange Server.

Experienced in technical support activities which includes user account administration, monitoring production processing servers and environments (200-300 distributed servers), configuration management, tape operations, storage management, and operational support and maintenance of Windows processing environments.

Computer Technician June 2002-July 2003

Columbia Research Corporation Washington, DC (Pentagon, Crystal City, Pax River) (NMCI)

Stage (Image and configure) and deploy NMCI machines for Navy and Marine personnel

Migrate data from legacy pc to new PC via script and peer to peer networking between the 2 machines

Train users in seminars on how to utilize their new pc’s

Setup and configure all individual apps for special users

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