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# Senior Cyber Security Engineer

- **Company:** Dexian Signature
- **Location:** Herndon, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Amazon Web Services, CentOS, Configuration Management, Cyber Security, Information Systems, Network Security, Linux Distribution, Role-Based Access Control, Red Hat Enterprise Linux, Security Information and Event Management, Transmission Control Protocol (TCP), Cloud Platform System, Operating System Security, Splunk, Vulnerability Analysis
- **Published:** June 3, 2026
- **Apply:** https://www.clearancejobs.com/jobs/8949542/senior-cyber-security-engineer

## About the Role

* Bachelor's degree, or 4+ additional years of cyber experience in lieu of a degree.
 * 5+ years of experience in a cybersecurity role.
 * Experience with Security Information and Event Management (SIEM) platforms and/or Splunk.
 * Knowledge of Linux systems administration, general operating system security practices, TCP/IP
networking, and network security concepts.

 * Knowledge of Certification and Accreditation (C&A) processes.
 * Knowledge of DoD policy and technical security guidance for information systems.
 * DoD Directive 8570.1 IAT Level II or higher certification, or the ability to obtain within six (6)
months.

 * Splunk certification is required.
Preferred Qualifications:

 * Experience with Linux distributions, including Red Hat and CentOS.
 * Experience with AWS or other cloud environments.
 * Knowledge of ICS 500-27 audit collection requirements.
 * Familiarity with Enterprise Security Services, Host Based Security Services, Enterprise
Vulnerability Scanning Services, and User Activity Monitoring (UAM).

 * Ability to modify feed creation to ingest customer logs in standardized formats to meet policy and
compliance requirements.
Clearance Requirements:

 * An active TS/SCI with Polygraph is required.
Physical Requirements:

 * Must be able to remain in a stationary position 50% of the time.
 * Occasionally moves about inside the office to access file cabinets, office machinery, or to
communicate with co-workers, management, and customers via email, phone, or virtual
communication, which may involve delivering presentations

## Description

* Troubleshoot new and existing data collection issues to ensure accurate and reliable ingestion of
security-relevant data.

 * Diagnose and resolve system issues that impact stability, performance, or usability.
 * Deploy, manage, and maintain supported and unsupported Splunk Add-ons required for specific
data sources.

 * Develop and maintain documentation, including Body of Evidence (BOE) artifacts, engineering
documentation, change management records, system security plans, and accreditation
materials, as required.

 * Deliver a comprehensive Splunk deployment document detailing specifications, deployment
methods, and architectural considerations for production environments.

 * Implement and maintain strict role-based access control to ensure data is accessible on a
validated need-to-know basis.

 * Design and deploy Splunk forwarders using centralized configuration management through the
Splunk Deployment Server to support rapid and consistent deployments.


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