Everforth ECS is seeking a Senior Cyber Operations Analyst to work in a hybrid capacity at our Fairfax, VA office.
The Senior Cyber Operations Analyst will support a newly established DISA AWS environment handling CUI. This position will serve as the primary subject matter expert for vulnerability management and endpoint security operations, with responsibility for operating ACAS and managing Trellix, including ePO, endpoint security policies, agent health, alerts, and reporting.
The ideal candidate is a technically strong cybersecurity professional who can independently analyze vulnerability and endpoint security data, configure and modify scans and security policies, troubleshoot operational issues, develop reports and metrics, and coordinate remediation with technical teams. The Senior Cyber Operations Analyst reports to the Senior Information System Security Manager.
Job Responsibilities:
- Serve as the primary operational SME for ACAS vulnerability management and endpoint security capabilities.
- Operate and configure:
- ACAS, including scan policies, targets, credentials, schedules, plugin settings, and vulnerability reporting.
- Approved endpoint security technologies such as Trellix, Microsoft Defender, or similar platforms, including policies, settings, agent health, exclusions, alerts, and security coverage.
- Create, modify, and execute routine, targeted, and ad hoc vulnerability scans based on operational requirements, DTOs, CVEs, and other cybersecurity directives.
- Troubleshoot credentialed scanning, authentication failures, incomplete scan coverage, plugin issues, and other conditions affecting scan results.
- Analyze vulnerability results to identify affected assets, validate findings, identify trends, support remediation efforts, and verify closure through rescanning.
- Review and investigate endpoint security alerts, malware detections, policy violations, and other suspicious activity and coordinate escalation to the SOC when additional investigation or incident response is required.
- Tune endpoint security policies, configurations, and exclusions to reduce false positives while maintaining required security protections.
- Evaluate DTOs, CVEs, vulnerability notifications, and emerging security issues to determine potential impact to the environment and coordinate validation activities as needed.
- Develop vulnerability and endpoint security dashboards, metrics, reports, spreadsheets, and trend analysis to support cybersecurity leadership, continuous monitoring, POA&M management, and authorization activities.
- Develop and maintain procedures, runbooks, configuration documentation, and operational processes for vulnerability management and endpoint security activities.
- Work with technical teams to coordinate vulnerability remediation, validate corrective actions, track outstanding findings, and improve overall security posture.
- Monitor the health and effectiveness of vulnerability scanning and endpoint security coverage and identify gaps requiring corrective action.
- Support integration of vulnerability and endpoint security data with the program's SIEM and other monitoring capabilities.
- Provide technical evidence, scan results, metrics, and remediation documentation in support of RMF, continuous monitoring, security assessments, and authorization activities.
- Continuously evaluate and improve vulnerability management, endpoint security, reporting, and remediation processes.
- Other duties, as assigned.
Salary: $170,000-190,000
General Description of Benefits
Preferred Qualifications
- U.S. Citizen.
- Ability to obtain Secret clearance (active preferred)
- Active DoD 8140 IAT Level II Security+ (or higher).
- Ability to work up to 3 days a week in a hybrid capacity out of Fairfax, VA. Additional onsite support may be required based on operational or mission needs.
- 8+ years of cybersecurity experience with a strong background in vulnerability management and endpoint security.
- Experience administering:
- ACAS, including creating and modifying scans, managing targets and credentials, scheduling scans, reviewing plugin results, troubleshooting authentication issues, and producing vulnerability reports.
- Trellix and ePolicy Orchestrator (ePO), including endpoint policies, agent health, alerts, exclusions, updates, deployments, and reporting.
- Ability to independently manage ACAS and Trellix operations.
- Experience with the following:
- Reviewing ACAS results, validating findings, identifying affected systems, coordinating remediation, and confirming closure through rescans.
- Reviewing endpoint security alerts and events, determining when additional investigation or escalation is required, and working with technical teams to address findings.
- Developing vulnerability and endpoint security reports, metrics, dashboards, and spreadsheets for cybersecurity leadership, continuous monitoring, and POA&M tracking.
- Developing and maintaining SOPs for vulnerability management, endpoint security, and related cyber operations in a new environment.
- Ability to evaluate CVEs, DTOs, vulnerability notifications, and other security advisories to determine whether systems are affected and perform targeted validation when needed.
- Working knowledge of Windows, Linux, networking, AWS, and Active Directory as they relate to vulnerability scanning and endpoint security.
- Familiarity with DoD vulnerability management, DISA STIGs, RMF, continuous monitoring, and POA&M processes.
- Strong troubleshooting, documentation, and communication skills with the ability to work directly with engineers and system administrators to resolve security findings.
- Strong problem-solving and decision-making capabilities, with a proven ability to weigh the relative costs and benefits of potential actions and identify the most appropriate solution.
- Highly developed interpersonal and oral/written communication skills, with the ability to effectively and professionally interact with a diverse set of stakeholders (from peers to end-users to executive management).
Skills Required
- U.S. citizenship
- Ability to obtain a Secret security clearance; active clearance preferred
- Active DoD 8140 IAT Level II Security+ certification or higher
- Ability to work up to three days per week in a hybrid capacity from Fairfax, Virginia, with additional onsite support as needed
- 8+ years of cybersecurity experience with strong vulnerability management and endpoint security experience
- Experience administering ACAS vulnerability scans, targets, credentials, schedules, plugin results, authentication troubleshooting, and reporting
- Experience administering Trellix and ePolicy Orchestrator, including policies, agent health, alerts, exclusions, updates, deployments, and reporting
- Ability to independently manage ACAS and Trellix operations
- Experience reviewing vulnerability and endpoint security findings, coordinating remediation, and validating closure
- Experience developing cybersecurity reports, metrics, dashboards, spreadsheets, and POA&M tracking
- Experience developing and maintaining SOPs for vulnerability management and endpoint security
- Ability to evaluate CVEs, DTOs, vulnerability notifications, and security advisories
- Working knowledge of Windows, Linux, networking, AWS, and Active Directory
- Familiarity with DoD vulnerability management, DISA STIGs, RMF, continuous monitoring, and POA&M processes
- Strong troubleshooting, documentation, communication, problem-solving, and decision-making skills
- Ability to interact professionally with technical teams, end users, stakeholders, and executive management
ECS Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about ECS and has not been reviewed or approved by ECS.
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Healthcare Strength — ECS advertises multiple national-network medical plan options with HSA eligibility alongside dental and vision coverage. Coverage generally begins quickly and is paired with company-paid short- and long-term disability, adding stability to the health package.
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Retirement Support — A 401(k) with Safe Harbor and immediate vesting on employer contributions is emphasized, with an employer match available. Access to an employee stock purchase plan via the parent company provides an additional savings avenue.
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Parental & Family Support — Paid parental leave up to 30 days, adoption assistance, and other family-oriented leaves are highlighted. Feedback suggests these offerings add meaningful value beyond base pay for many roles.
ECS Insights
What We Do
ECS, a segment of ASGN (NYSE: ASGN), delivers advanced solutions and services in cloud, cybersecurity, artificial intelligence (AI), machine learning (ML), application and IT modernization, and science and engineering. The company solves critical, complex challenges for customers across the U.S. public sector, defense, intelligence and commercial industries. ECS maintains partnerships with leading cloud, cybersecurity, and AI/ML providers and holds specialized certifications in their technologies. Headquartered in Fairfax, Virginia, ECS has more than 3,400 employees throughout the U.S. and has been recognized as a Top Workplace by The Washington Post for the last five years.








