Endpoint Security Services Engineer Job at Leidos in Upper Marlboro

Description Join Leidos as an experienced Endpoint Security Services Engineer and Systems Administrator and play a crucial role in enhancing our mission. Your expertise will contribute to innovative security solutions at our Washington Navy Yard location. What You'll Do In this role, you will not only maintain but also elevate systems. You'll work collaboratively to install, configure, and fine-tune advanced security measures, ensuring our critical network infrastructure operates at its best. Additionally, you will evaluate new technologies to shape the future of endpoint protection in a highly sensitive environment, ensuring compliance with the latest security patches and configurations. Your Impact Includes:

• Managing the full lifecycle of ESS and its agents - from installation and management to maintenance and optimization.
• Creating and deploying customized ESS signatures and policies.
• Proactively monitoring ESS for intrusions, failures, and performance issues.
• Ensuring reliable and secure operation of endpoints across all clients and servers.
• Troubleshooting ESS deployments and policy rollouts on local and remote systems.
• Conducting threat analysis and developing custom security rules for advanced exploits and vulnerabilities.
• Providing detailed reporting on system health, event trends, and module performance.
• Supporting major updates and compliance efforts, including STIG-mandated Trellix upgrades.
• Assisting in designing and evaluating network components while developing cutting-edge technical solutions.

Basic Qualifications:

• An active Top Secret clearance (SCI eligible).
• A minimum of 8 years of IT experience, with at least 2 years focused on ESS or equivalent.
• DOD 8570 IAT Level II certification or higher.
• Proficiency in Windows Serverand endpoint platforms like Trellix Agent, ENS FW, PA, DLP, RSD, and ePO.
• Strong analytical skills and ability to troubleshoot under pressure.

Preferred Qualifications:

• TS/SCI clearance and DOD 8570 IAT Level III certification.
• Hands-on experience with RedHat Enterprise Linux, VMware, Microsoft Hypervisor, or RedHat VM Manager.
• Familiarity with SADR environments and managing ePO servers.
• Completion of Basic and Advanced ESS DISA training.

If you're ready to take on a pivotal role in national security cyber defense, let's connect. This opportunity allows you to lead from the front in safeguarding critical systems. We encourage innovation and welcome those who thrive on solving high-stakes problems effectively. Original Posting: December 23, 2025 For U.S. Positions: Leidos anticipates this job requisition will remain open for a minimum of 3 days, with closing no earlier than 3 days following the original posting. Pay Range: $92,300.00 - $166,850.00 This range is a guideline and not a guarantee of compensation. Various factors, including job responsibilities, education, and experience, will be considered in extending an offer. About Leidos Leidos is a leading technology provider to government and commercial customers, focusing on smarter and more efficient digital innovations. With headquarters in Reston, Virginia, and 47,000 global employees, we reported annual revenues of approximately $16.7 billion for the fiscal year ending January 3, 2025. Pay and Benefits We offer competitive compensation packages that reflect the significance of our work for customers. Employment benefits include health and wellness programs, income protection, paid leave, and retirement options. Securing Your Data Beware of fraudulent job offerings using Leidos' name. We will never request payment-related information during the hiring process. Communication will solely occur through Leidos.com emails. If suspicious communications arise, contact us immediately. Report scams to your local law enforcement and the U.S. Federal Trade Commission. Commitment to Non-Discrimination Leidos provides equal employment opportunities without discrimination based on various factors. We also consider qualified applicants with criminal histories consistent with relevant laws.