> Markdown version of [/jobs/ext/2311963-sr-endpoint-security-engineer-i-6701](https://www.wearedevelopers.com/jobs/ext/2311963-sr-endpoint-security-engineer-i-6701). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Endpoint Security Engineer I (6701) - **Company:** MetroStar Systems - **Location:** Washington, DC, United States - **Experience:** Expert - **Salary:** $138,000.0 - $166,000.0 - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Cyber Security, Information Leak Prevention, Electronic Data Interchange (EDI), Microsoft Exchange Server, Intrusion Detection and Prevention, Information Systems Security Architecture Professional, Security Information and Event Management, Systems Integration, Data Classification, Cyber Threat Analysis, Security Orchestration, Automation & Response - **Published:** August 30, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9129159/sr-endpoint-security-engineer-i-6701 ## About the Role * Active TS/SCI security clearance. * 5+ years of experience administering and engineering Trellix security solutions in a large enterprise environment. * Hands-on experience with Trellix ePolicy Orchestrator (ePO), Endpoint Security (ENS), Endpoint Detection and Response (EDR), Data Loss Prevention (DLP), Drive Encryption (FRP/FRMP), Threat Intelligence Exchange (TIE), Data Exchange Layer (DXL), Policy Auditor, Rogue System Detection, Trellix Security for Microsoft Exchange (TSME), Application and Change Control (Solidcore), and File Integrity Monitoring (FIM). * Experience implementing and managing application whitelisting, endpoint hardening, encryption, and data protection technologies; integrating endpoint security platforms with SIEM, SOAR, threat intelligence, and identity management solutions. * Strong understanding of endpoint security architecture, cyber threat detection, incident response, and risk management principles; experience developing and maintaining DLP policies, device control mechanisms, and data exfiltration prevention controls. * Experience supporting SOCs and enhancing 24x7 threat monitoring and response capabilities; ability to develop security engineering standards, SOPs, playbooks, and operational procedures. * Experience supporting compliance initiatives and implementing security controls aligned with federal cybersecurity frameworks and regulations; strong analytical, troubleshooting, and root-cause analysis skills. SALARY RANGE: $138,000 - $166,000 The salary range for this position is determined based on qualifications, skills, and relevant experience. The final salary offered will be determined based on several factors including: * The candidate's professional background and relevant work experience * The specific responsibilities of the role and organizational needs * Internal equity and alignment with current team compensation * This role is also eligible for additional compensation, subject to the terms and policies of MetroStar, which may include ## Description As a Sr. Endpoint Security Engineer (Trellix) I, you'll serve as the technical lead for the organization's endpoint security and data protection ecosystem, balancing day-to-day operational support with strategic cybersecurity engineering initiatives. You will work closely with security operations, infrastructure, application teams, and leadership to strengthen the organization's overall security posture. We know that you can't have great technology services without amazing people. At MetroStar, we are obsessed withour people and have led a two-decade legacy of building the best and brightest teams. Because we know our future relies on our deep understanding and relentless focus on our people, we live by our mission: A passion for our people. Value for our customers. What you'll do: * Monitoring and managing enterprise Trellix security platforms, including ePO, ENS, EDR, DLP, and encryption technologies. * Supporting SOC analysts by tuning alerts, improving detection capabilities, and investigating endpoint security events. * Remediating JCIP and compliance findings through application whitelisting, File Integrity Monitoring (FIM), DLP enhancements, and security control implementations; designing and deploying endpoint hardening and application control solutions using Trellix Application and Change Control (Solidcore). * Developing and maintaining DLP policies, encryption controls, removable media protections, and data classification safeguards; integrating endpoint security telemetry into SIEM and SOAR platforms to improve visibility, detection, and automated response capabilities. * Performing root-cause analysis of security incidents, policy conflicts, and endpoint management issues; developing automation workflows and operational efficiencies using scripts, APIs, and orchestration tools. * Creating and maintaining dashboards, reports, and metrics to support cybersecurity operations and executive reporting; collaborating with security assessors and compliance teams to implement and validate technical controls. * Documenting security architectures, SOPs, playbooks, and engineering standards; researching emerging threats, evaluating new security capabilities, and recommending improvements to strengthen enterprise cyber defenses. ## Related Videos - [You can’t hack what you can’t see](https://www.wearedevelopers.com/videos/41-you-can-t-hack-what-you-can-t-see) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [AI Agents & Agentic AI](https://www.wearedevelopers.com/videos/2017-ai-agents-agentic-ai) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [From APIs to MCP: Enterprise Governance, Registry, and Controls](https://www.wearedevelopers.com/videos/100336-from-apis-to-mcp-enterprise-governance-registry-and-controls) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london) - [DevOps Engineer Salary [2023]](https://www.wearedevelopers.com/magazine/203-devops-engineer-salary-2023) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [How Much Does a Software Engineer Make? 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