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James O. Email & Phone Number

Senior System Administrator at Criterion Systems at Criterion Systems
Location: Arlington, Virginia, United States 5 work roles 1 school
1 work email found @feyenzylstra.com LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

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Work email j****@feyenzylstra.com
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Current company
Role
Senior System Administrator at Criterion Systems
Location
Arlington, Virginia, United States
Company size

Who is James O.? Overview

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Quick answer

James O. is listed as Senior System Administrator at Criterion Systems at Criterion Systems, a with 299 employees, based in Arlington, Virginia, United States. AeroLeads shows a work email signal at feyenzylstra.com and a matched LinkedIn profile for James O..

James O. previously worked as Senior System Administrator at Criterion Systems and Senior Architect and Engineer at Hyper Vigilance. James O. holds Bachelor'S Degree, Computer And Information Sciences, General from Grand Valley State University Alumni.

Company email context

Email format at Criterion Systems

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*@feyenzylstra.com
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Profile bio

About James O.

Diversified IT professional with a combined 15+ years of related, full-time experience in administrative and automation functions. Highly skilled at communicating with people of varying technological backgrounds, adopting leadership roles, educating, and training using programming experience to drive automation and efficiency, and introducing technology as solutions to business problems.

Listed skills include Fast Learner, Os X, Website Development, Information Systems, and 29 others.

Current workplace

James O.'s current company

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Criterion Systems
Criterion Systems
Senior System Administrator at Criterion Systems
vienna, virginia, united states
Employees
299
AeroLeads page
5 roles

James O. work experience

A career timeline built from the work history available for this profile.

Senior System Administrator

Current

Arlington, Virginia, United States

- Manage 1500+ devices for Cherokee Federal and 100+ devices for Criterion Systems using Microsoft Intune- Orchestrate application deployment using a mix of MSI and PowerShell automation- Led migration of 250+ Cherokee Federal users from commercial to GCC High cloud, ensuring CMMC compliance- Developed PowerShell scripts for domain release and user configuration during tenant migrations- Implemented Microsoft Purview policies for anti-spam, anti-phish, and data loss prevention- Configured Exchange transport rules for CUI/PII protection and email encryption- Maintain NIST 800-171 and CMMC security requirements across cloud environments- Manage and maintain Office 365 tenant environments for both organizations- Automate deployment of security hardening configurations and software management- Maintain and configure Ubiquiti network stack for Criterion Systems

Dec 2021 - Present

Senior Architect And Engineer

Arlington, Virginia, United States

- Architected FIPS-compliant solutions for 15+ clients, focusing on CMMC and NIST 800-171 compliance- Led tenant migrations to separate cloud instances with specific NIST and CMMC controls- Configured BitTitan for seamless data migration between tenants- Managed Office 365 tenants for 500+ endpoints across multiple clients

Feb 2021 - Dec 2021

Cyber Security Engineer

Cyber Management International Corporation

Arlington, Virginia, United States

- Supported DS special agents in cyber security investigations- Developed and modified Splunk dashboards for various DS Enclaves- Created PowerShell automation scripts for data analysis and acquisition- Assisted in eDiscovery case management and data source identification

Sep 2019 - Apr 2021

Network Analyst

Columbia, South Carolina, United States

- Monitored site availability and performed remote IT functions for nationwide locations- Coordinated large-scale projects, including 70+ laptop reimages and switch IOS upgrades- Developed C# applications to improve efficiency in network management tasks

Jan 2018 - Sep 2019

Lead Information Technology Specialist

Grand Rapids, Michigan, United States

- Led IT support for 400+ employees, managing both on-site and remote technology issues- Performed system administration tasks across multiple platforms and technologies- Developed automation solutions, reducing manual processes by up to 90%- Led technology-related training initiatives for groups of 15-30 users

Jan 2015 - Jan 2017
Team & coworkers

Colleagues at Criterion Systems

Other employees you can reach at criterion-sys.com. View company contacts for 299 employees →

1 education record

James O. education

FAQ

Frequently asked questions about James O.

Quick answers generated from the profile data available on this page.

What company does James O. work for?

James O. works for Criterion Systems.

What is James O.'s role at Criterion Systems?

James O. is listed as Senior System Administrator at Criterion Systems at Criterion Systems.

What is James O.'s email address?

AeroLeads has found 1 work email signal at @feyenzylstra.com for James O. at Criterion Systems.

Where is James O. based?

James O. is based in Arlington, Virginia, United States while working with Criterion Systems.

What companies has James O. worked for?

James O. has worked for Criterion Systems, Hyper Vigilance, Cyber Management International Corporation, Bae Systems, and Feyen Zylstra.

Who are James O.'s colleagues at Criterion Systems?

James O.'s colleagues at Criterion Systems include Joseph Keneally, Maia Chibber, Tony Willis, Sophia Nicholson Layne, and Stacey Turner.

How can I contact James O.?

You can use AeroLeads to view verified contact signals for James O. at Criterion Systems, including work email, phone, and LinkedIn data when available.

What schools did James O. attend?

James O. holds Bachelor'S Degree, Computer And Information Sciences, General from Grand Valley State University Alumni.

What skills is James O. known for?

James O. is listed with skills including Fast Learner, Os X, Website Development, Information Systems, Technology, Sharepoint Administration, Windows Server, and Active Directory.

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