Endpoint Protection Administrator (Senior)

Company: Agil3 Technology Solutions
Location: San Antonio
Posted on: February 19, 2026

Job Description:

Job Description Job Description Agil3 Technology Solutions (A3T), a fast-growing firm, specializes in IT/Digital Modernization, Cyber Security, NextGen IT, and Emerging Technology services. We provide customer-centric services and focus resources to exceed expectations; and ensure our customers, employees, and other stakeholders are the focal point of all decisions and actions. The Endpoint Protection Administrator will operate, manage, and deploy DISA-approved endpoint security tools such as Endpoint Security System (ESS) and Microsoft Defender. This role is responsible for monitoring and maintaining endpoint protection compliance, managing security policies, responding to threats, and providing operational support across NIPRNet, SIPRNet, and isolated network environments.Key Responsibilities Operate, manage, and deploy endpoint security tools (ESS, MDE/MDfS) in accordance with DoD and DISA policies. Monitor, maintain, and facilitate endpoint protection compliance throughout its lifecycle. Perform rogue system detection, removable storage monitoring, policy and scan creation, and tuning of firewall, Intrusion Protection System (IPS), and Antivirus components. Validate, register, and maintain documentation for approved mass storage devices. Investigate, remediate, and document denial-of-service incidents. Create and maintain custom queries, reports, and dashboards for system and policy compliance. Monitor and report on cyber and insider threats. Facilitate and approve endpoint protection application upgrades and changes. Coordinate Tier III vendor support for troubleshooting and manage tool accounts and credentials. Conduct audits and provide required documentation. Minimum Qualifications Education: Bachelor's degree or equivalent work experience. Certification: Current DoD 8570/8140 compliant certification with a network environment focus and ESS certifications. Experience: Five or more years of relevant/recent experience with endpoint tools and cybersecurity. Three or more years of relevant/recent experience with Microsoft Office products. Security Clearance: Secret Company Overview Agil3 Technology Solutions LLC ("A3T") is a Northern Virginia based, ISO 9001:2018, ISO 20000 & ISO 27001 Certified, 8a, Women-Owned (WOSB) and Service-disabled Veteran-Owned (SDVOSB) small business. A recent recipient of the prestigious Washington Technology TOP 50 (ranking 9, and on the list for last 4 years!), A3T is experiencing industry leading recognition and growth. In addition to the CEO’s recognition as an “All-Star Entrepreneur”, A3T is recognized by Inc Magazine as one of the fastest growing companies in the country, by Vet 50 as Fastest Growing Veteran-Owned Businesses, and is featured in CyberSecurity Ventures / Cybercrime Magazine! “As a go-to Women-Owned Cybersecurity company in US and internationally”. As part of our growth, we are looking for YOU to join our growing team. A3T offers excellent benefits to enhance the work-life balance, including: Medical Insurance Dental Insurance Vision Insurance Life Insurance Short Term & Long-Term Disability 401k Retirement Savings Plan with Company Match Paid Holidays Paid Time Off (PTO) Tuition and Professional Development Assistance Parking/Travel Reimbursement (metropolitan areas) Powered by JazzHR CGSClcfCDc

Keywords: Agil3 Technology Solutions , Georgetown , Endpoint Protection Administrator (Senior), IT / Software / Systems , San Antonio, Texas