Summary
Overview
Certification
Work History
Education
Skills
Focus Areas
Accomplishments
Software
Interests
Timeline
Work Availability
Work Preference
Languages
Barista
Dalton Whitfield

Dalton Whitfield

Sr. Sys Admin | Tanium SME | Vul. Mgr. Security Clearance: Active Secret
Sanford,FL

Summary

A distinguished veteran of the United States Army and seasoned IT professional with over 18 years of combined experience, excellent ability to grasp new concepts quickly. Providing expertise in Network and System Administration, Cybersecurity, Vulnerability Management, RMF and Tanium. Currently seeking opportunities in a challenging and rewarding role in System Administration, Cybersecurity, and/or Tanium.

Overview

18
18
years of professional experience
3
3
years of post-secondary education
8
8
Certificates
1
1
Languages

Certification

Tanium Certified Administrator (Exp. Aug 2026)

Work History

Tanium - Endpoint Protection: Gates Foundation

Mastech Digital
Sanford, FL - Remote
11.2024 - Current
  • Create detailed instructional materials and visual aids for deployment processes, including Confluence page updates and change control submissions.
  • Develop and test Tanium packages for software deployments, registry key removal, and CVE remediation, ensuring alignment with NIST objectives and security standards.
  • Design and provision Tanium reports, dashboards, and Confluence visual architecture diagrams to enhance visibility and support NIST Framework goals.
  • Conduct software deployments and sensor provisioning across Windows and macOS environments for over 2,000 endpoints worldwide, including Teams Classic removal and installation verification.
  • Operate in ring-phased software deployments with change control approvals and QA oversight.
  • Support vulnerability management efforts by tracking remediation progress, enforcing security baselines, and ensuring compliance through Tanium reporting and dashboards.
  • Deploy and validate endpoint applications, leveraging Tanium for configuration management, compliance enforcement, and security posture validation.
  • Provision granular Tanium sensors for registry and installation data collection to enhance monitoring and compliance across a global environment.
  • Validate and enforce security policies, including browser baseline updates and unauthorized application blocking via Tanium and system controls.
  • Document change control requests, report generation, and process workflows to ensure stakeholder alignment for international projects.
  • Track project efforts using Jira stories and subtasks, ensuring clear documentation, task prioritization, and timely progress updates.

Tanium SME | Vul. Mgr. | Sr. SysAdmin

SAIC
Sanford, FL - Remote
07.2023 - Current

DoD Contractor: Defense Counterintelligence and Security Agency
Vulnerability Management, Endpoint Management and Cybersecurity:
• Establish automated baseline of system hardening checklists for increased near real time visibility of user and server endpoint hardening posture.
• Tanium platform manager including updates, configuration, and user access.
• Migrated Tanium to TanOS appliance from Windows Server across three environments.
• Windows Server vulnerability and patch management lead. Utilize ACAS, Tanium, and DoD STIGs for RMF audits, Window Server ATOs, patch management automation and risk mitigation. Patch automation on 300+ servers across three environments.
• Assist cyber security team in leveraging Tanium Reveal and Threat Response modules overseeing activity on 9,000+ user endpoints.
• Collaborate with ServiceNow team on Tanium REST API to ServiceNow CMDB.
Customer Service, Customer Relations and System Administration:
• Configure and monitor new system features based on customer needs.
• Liaise between clients, variety of teams, and Tanium Inc. for Tanium learning, licensing, capabilities and recommendations.
• Utilize VBScript and PowerShell scripts for Tanium sensors.
• Maintain SOPs and help guides for operation.
• Maintain flexible schedule with readiness to respond to after-hour calls as needed.
• Manage Active Directory, Group Policy, and share drive access.
• Provide Tier 2 and Tier 3 support for problem identification, diagnosis, and issue resolution.
• Conduct regular reviews of operations and identify areas for improvement
• Cultivate positive relationship with vendor to deliver timely and cost-effective supply of services and materials.
Technologies and Standards used:
• AD, DHCP, DNS, STIG, ACAS, VMware vSphere, Windows Server, WSUS, CCRI, MECM
• Tanium Modules: Interact, Asset, Comply, Connect, Deploy, Impact, Integrity Monitor, Patch, Performance, Reporting, Reveal, Threat Response, Trends

Tanium SME | Vul. Mgr. | Sr. SysAdmin

Deloitte Consulting LLP
Lake Mary, FL - Hybrid
02.2020 - 07.2023

DoD Contractor: Defense Counterintelligence and Security Agency
Vulnerability Management, Endpoint Management and Cybersecurity:
• Designated Tanium platform SME. Managed Tanium module and server updates, functionality, and user access. Migrated Windows-based Tanium to TanOS Appliance.
• Deputy lead over vulnerability management.
• Utilized Tanium Patch to automate scheduled patching for 300+ servers.
• Managed and consulted with teams on infrastructure patch management, vulnerability risks, and mitigation strategies.
• Optimized Tanium modules aiding cyber defense team overseeing 9,000+ users and endpoints and improved VDI performance.
• Consulted and implemented with teams for server systems utilizing ACAS, Tanium, and DoD STIGs for RMF and FISMA system audits for ATOs. (*Security Technical Implementation Guide, Risk Management Framework, Federal Information Security Management Act, Authorization to Operate)
Customer Service, Customer Relations and System Administration:
• Project management - Oversaw, tracked, and reported large scale Windows Server migration efforts.
• Implemented and updated standard operating procedure guides and help guides for vulnerability management, change management, and Tanium operation.
• Managed Active Directory, Group Policy, and share drive access. Provided Tier 2 and Tier 3 support for problem identification, diagnosis, and issue resolution.
• Liaised between clients, variety of teams, and Tanium Inc. for Tanium learning, licensing, capabilities and recommendations.
• Maintained flexible schedule and responded to after-hours and weekend emergencies.
Technologies and Standards used:
• AD, DHCP, DNS, STIG, Tenable ACAS, VMware vSphere, Windows Server, WSUS, CCRI
• Tanium Modules: Interact, Asset, Comply, Connect, Deploy, Impact, Integrity Monitor, Patch, Performance, Reporting, Reveal, Threat Response, Trends

System Administrator III | Cybersecurity

PEO STRI - Agile Defense Inc.
Orlando, FL - Onsite
02.2018 - 02.2020

DoD Contractor: PEO STRI (Program Executive Office - Simulation, Training and Instrumentation)
System Administration and Cybersecurity:
• Implemented multiple VMware ESXi servers for both remote and on-site management, 11 total remote sites on WAN.
• Configured multiple virtual environments with Windows Servers for AD, AD Sites and Services, WSUS, MDT, DHCP, DNS, MDT, and network shares.
• Designated McAfee ePO HBSS administrator. Configured, hardened and managed ePO server and enforced polices to endpoints.
• Configured systems in accordance with DoD STIGs for FISMA and RMF audits.
• Managed user access on multiple isolated networks through implementation of Active Directory and Group Policy Objects (GPO).
Customer Support:
• Resolved customer computer issues, which included data recovery, transfers, and backups.
• Maintained support, configuration and deployments for 1,000+ client computers 100+ mobile phones.
• Serviced tickets with System Center 2016.
• Established effective communication channels between IT support staff and end-users, leading to improved issue resolution times overall.
Technologies and Standards Used:
• AD, WSUS, DHCP, DNS, MDT, Windows Server, STIG, FIMSA | RMF, Tenable ACAS, McAfee ePO HBSS, VMware ESXi, VMware vCenter

Information Technology Specialist

United States Army
Fort Drum, NY - Onsite
06.2009 - 03.2018

Network Operations and Systems Administration:
• Managed and configured Cisco network devices and call managers.
• Maintained 98% success rate for stable communications.
• Served as Information Management Officer (IMO)
• Managed user accounts and computer systems.
• Managed and configured network encryptors.
• Reduced downtime by proactively identifying and resolving potential issues through thorough system monitoring.
Mobile Satellite Communications:
• Established and configured DoD mobile satellite communication system sites. Command Post Nodes.
Customer Support:
• Processed user account tickets in BMC Remedy.
• Effectively resolved customer computer issues.
• Conducted data recovery transfers.
Technologies used:
• Cisco routers and switches, Unified Call Manager, VOIP phones, Military Computer Hardware, Crypto-devices, Firewall, DNS, DHCP, TCP/IP, Satellite Transportable Terminal, Solaris Sun Systems, Windows Server, BMC Remedy

System Administrator

Advanced Systems Technology, Inc.
Orlando, FL - Onsite
12.2015 - 02.2018

For: PEO STRI (Program Executive Office - Simulation, Training and Instrumentation)

Networking & System Administration:

  • Configured and managed isolated servers and computer systems.
    Ensured strict compliance with Department of Defense (DoD) Information Security Guidelines.
    Oversaw installation of DoD-approved software and Windows Operating Systems on Government computers.
    Proficiently executed patch panel connection configurations.
    Maintained user access on multiple isolated networks through implementation of Active Directory and Group Policy Objects (GPO).
    ________________________________________________

Customer Support:

  • Configured and deployed computer systems, including peripheral devices.
    Managed service tickets using System Center 2016.
    Diagnosed and resolved customer computer issues, which included data recovery, transfers, and backups.
    Collaborated with teammates to configure and distribute mobile devices to users.
    ________________________________________________

Technologies Used:

  • AD, DHCP, DNS | Data center cabling | Hardware Firewall | Windows Server 2008, 2012

Computer Support Specialist

Self Employed
Spokane Valley, WA
12.2006 - 06.2009

Technical Support and Customer Service:
• Executed fundamental and comprehensive analyses and remediation of hardware and software on customer laptops and desktops.
• Proficiently conducted 100 plus Windows operating system installations and intricate file system configurations.
• Demonstrated expertise in configuring home network devices.
• Successfully conducted file recovery operations.
• Improved customer satisfaction by promptly addressing and resolving technical issues.
Technologies used:
• Windows 2000-XP, Home routers, Microsoft Office, Ubuntu, Linux

Education

Vocational Study - Vocational: DoD 8570.1 IT Professional Track

New Horizons Computer Learning Center
Orlando, FL
05.2015 - 10.2015

Graduate Diploma - Information Technology Specialist

United States Army Cyber Center of Excellence
Fort Gordon, GA
11.2010 - 04.2011

High School Diploma -

Central Valley High School
Spokane Valley, WA
09.2004 - 07.2009

Skills

Analytical and Critical Thinking

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Focus Areas

Information Technology
Diverse experience and proven effective work ethic, operating within multiple network topology configurations.
____________________________________________________________________

Security
Proven security response with tenacity, endurance, and dedication by remaining of sound mind and proving to be a leader in challenging times during rotations.
____________________________________________________________________

Operations & Administration
Experience ensuring optimal procedures and workflow operations in an office environment. In addition to experienced organizational leadership roles.
____________________________________________________________________

Customer Service
History of productive, friendly services that have enhanced team performance, ensuring a professional environment. During military service, provided internal customer service by relating to all personnel in a congenial and professional manner that facilitated the development of a diversified group.

Accomplishments

Army Commendation Medal
Honor date: Oct 2012

Honor issuer: U.S. Army

Awarded for exceptionally meritorious service while assigned as a Local Area Network Manager in support of Operation Enduring Freedom 2011-2012.

____________________________________________________________________

Army Achievement Medal
Honor date: Dec 2010
Honor issuer: U.S. Army

Awarded for exceptional service as a network operator and team member of the 226th Signal (Communications) company, in providing a hierarchy attached company with successful communications access during an extensive training exercise.

____________________________________________________________________

Good Conduct Medal

Honor date: 2012
Honor issuer: U.S. Army

Awarded for exemplary behavior, efficiency, and fidelity in active Federal Military service.

____________________________________________________________________

  • Monitored and assessed issues that arose with clients, ensuring immediate resolution which promoted stronger relationships with the client.
  • Developed a network access storage solution that ensured remote clients ability to access local stored data during active directory outages.
  • Security Solutions - Managed client network security through installation and configuration of security suite software.

Software

Active Directory

Android

Apple iOS

Apple macOS

BMC Remedy

Cisco Unified Call Manager

DHCP

DNS

McAfee ENS - HBSS

McAfee ePO - HBSS

Microsoft Deployment Toolkit

Microsoft Excel

Microsoft Power Point

Microsoft Outlook

Microsoft SharePoint

Microsoft Word

Nessus ACAS

Service Manager Console

SMART Board

STIG

VMware ESXi

Windows 7, 10

Windows Server 2008-2019

WSUS

Service Now

Tanium

Interests

Car Audio & Video

Consumer Technology

Home Audio & Video

Photography

Video Editing

Coffee Roasting and Specialty Brewing

Automotives

Timeline

Tanium - Endpoint Protection: Gates Foundation

Mastech Digital
11.2024 - Current

Tanium Certified Administrator (Exp. Aug 2026)

08-2024

Tanium Certified Operator (Exp. Aug 2026)

08-2024

Tanium SME | Vul. Mgr. | Sr. SysAdmin

SAIC
07.2023 - Current

Tanium Operations and Security Essentials

07-2020

DISA ACAS Version 5.3

06-2020

Tanium SME | Vul. Mgr. | Sr. SysAdmin

Deloitte Consulting LLP
02.2020 - 07.2023

DISA HBSS Admin 201 ePO 5.3

05-2019

CompTIA Security+ CE (Exp. Jul 2027)

06-2018

System Administrator III | Cybersecurity

PEO STRI - Agile Defense Inc.
02.2018 - 02.2020

CompTIA A+ CE (Exp. Jul 2027)

07-2016

System Administrator

Advanced Systems Technology, Inc.
12.2015 - 02.2018

Microsoft Security Fundamentals - MTA

09-2015

Vocational Study - Vocational: DoD 8570.1 IT Professional Track

New Horizons Computer Learning Center
05.2015 - 10.2015

Graduate Diploma - Information Technology Specialist

United States Army Cyber Center of Excellence
11.2010 - 04.2011

Information Technology Specialist

United States Army
06.2009 - 03.2018

Computer Support Specialist

Self Employed
12.2006 - 06.2009

High School Diploma -

Central Valley High School
09.2004 - 07.2009

Work Availability

monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Work Preference

Work Type

Full TimeContract Work

Work Location

RemoteHybrid

Important To Me

Career advancementWork-life balanceHealthcare benefitsFlexible work hoursPaid time offWork from home option

Languages

English
Native or Bilingual
Dalton WhitfieldSr. Sys Admin | Tanium SME | Vul. Mgr. Security Clearance: Active Secret