Senior Cybersecurity Engineer – Lab Validation & RMF

Cybersecurity Jobs; Ashburn (VA); On-site; USD 105,000 - 115,000; Full time

Benefits offered by this job

Health care

Dental

Vision

Life insurance

401(k)

Education assistance

Paid time off

Job summary

Cybersecurity Jobs in Ashburn, VA seeks a Senior Cyber Security Engineer to support UGS and OT cybersecurity engineering, including lab validation, security readiness, and evidence documentation. The role requires RMF/ATO experience and hands-on Nessus and Splunk activities.

The ideal candidate has 5–7 years in security engineering, vulnerability management, or assessment, with strong communication and cross-team coordination skills. Onsite work in a CBP-focused environment is expected.

Qualifications

• Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Engineering, or a related field; equivalent experience may be considered.

Responsibilities

• Provide cybersecurity engineering and ISSE support for UGS and operational technology systems, emphasizing lab validation, security readiness, and documentation.
• Support CSD VAT/Nessus scan readiness by covering asset identification, scan scope, credential availability, scan limitations, vendor constraints, and device impact considerations.
• Support CSD SOC/Splunk readiness by identifying available telemetry, log sources, logging limitations, monitoring requirements, and security-relevant events.
• Assist with firmware and software update validation, including security update review, vendor release note review, checksum or hash validation, and security impact tracking.
• Document vulnerabilities, findings, limitations, remediation actions, compensating controls, and retest results to support lab validation and ATO-related evidence.
• Contribute security input to lab test plans, validation packages, acceptance recommendations, and Phase 2 handoff materials.
• Support configuration and change management by assessing whether proposed changes affect validated baselines, security posture, scanning requirements, monitoring, or field-alignment readiness.
• Coordinate with stakeholders to support secure integration and validation of UGS technologies.
• Maintain security-related documentation, including scan readiness checklists, security considerations, vulnerability tracking, and ATO evidence inputs.
• Provide security guidance to lab team members and support security audits, assessments, and evidence requests as needed.
• Support lab incident and security event handling by documenting security events, assessing validation impact, preserving evidence, and coordinating with appropriate stakeholders.

Skills

Analytical thinking

Communication

Cross-functional coordination

Technical writing

Problem solving

Education

Bachelor’s degree in Cybersecurity or related field

Tools

Tenable Nessus

Splunk

Job description

Cybersecurity Jobs in Ashburn, VA seeks a Senior Cyber Security Engineer to support UGS and OT cybersecurity engineering, including lab validation, security readiness, and evidence documentation. The role requires RMF/ATO experience and hands-on Nessus and Splunk activities.

The ideal candidate has 5–7 years in security engineering, vulnerability management, or assessment, with strong communication and cross-team coordination skills. Onsite work in a CBP-focused environment is expected.