Senior Splunk SIEM Engineer Security Clearance

Position: Senior Splunk SIEM Engineer with Security Clearance
Job#: 3031010 Sr Splunk SIEM Engineer

Location:

Onsite Alexandria, VA

Employment Type:

6-month contract-to-Hire

PLEASE NOTE:

Candidates must be able to obtain and/or maintain a Department of Defense Top Secret SCI security clearance as a condition and continuation of employment
* If you are interested, please apply here or email an updated copy of your resume to Emma at

Role Overview
The Senior Splunk Enterprise Security professional serves as a subject matter expert for designing, implementing, tuning, and maintaining Splunk Enterprise and Enterprise Security to support enterprise-level security monitoring, threat detection, and incident response. This role works closely with security engineering, SOC operations, threat intelligence, and IT infrastructure teams to enhance visibility, strengthen detection capabilities, and ensure the overall effectiveness of SIEM operations.

Key Responsibilities

• Architect and administer Splunk Enterprise Security in distributed environments
• Develop correlation searches, RBA models, dashboards, and detections
• Lead data onboarding, parsing, normalization, and CIM mapping
• Manage Splunk infrastructure including indexers, search heads, and forwarders
• Optimize performance, health, and scalability across clustered environments
• Support detection engineering aligned to MITRE ATT&CK and SOC operations

Required Qualifications

• Strong SPL skills with dashboards, data models, and search optimization
• Expertise in data onboarding, CIM mapping, and props/transforms
• Solid understanding of SIEM operations, SOC workflows, and threat detection
• Experience with Splunk architecture, clustering, and configuration files
• Knowledge of Linux/Unix, networking fundamentals, and security tools Education/

Certifications:

Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, or related field (or equivalent experience)

Experience:

5–10+ years of hands-on Splunk Enterprise and ES experience. 3+ years of related experience in SIEM engineering, cybersecurity monitoring, or security analytics Clearance:
Candidates must be able to obtain and/or maintain a Department of Defense Top Secret/SCI as a condition and continuation of employment (clearance sponsorship not offered at this time) Technical

Skills:

• Splunk certifications (Architect, Consultant, ES, Power User)
• Experience with Splunk SOAR for automation
• Knowledge of MITRE ATT&CK detection development
• Scripting skills in Python, Bash, or Power Shell
• Exposure to cloud logging (AWS, Azure, GCP)
• Experience supporting federal or regulated environments Apex Systems Military & Veteran Programs
At Apex Systems, we are proud to support those who serve.

Our commitment to the military community is reflected in our robust veteran hiring initiatives, military-friendly workplace policies, and nationally recognized programs. We value the leadership, discipline, and mission-first mindset that military professionals bring to our team. Join us in continuing your mission.
Why Apex is a Top Choice for Veterans and Military Talent:

· Military-Friendly

Employer:

Recognized as a Military Friendly® Employer for multiple consecutive years.

· Transition Programs:
DoD Skill Bridge program with multiple pathway options.

· Veteran Hiring Commitment:
We actively partner with multiple veteran and military organizations that specialize in IT upskilling and certification training, helping service members and veterans transition into high-demand tech careers

· Apex Military Network:
Internal employee resource group supporting veterans, Guard/Reserve members, and their families.
Apex Benefits Overview
Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a Support Linc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings…