Senior Splunk Security Engineer — Enterprise Analytics

MANTECH; Chantilly (VA); On-site; USD 120,000 - 180,000; Full time

Job summary

MANTECH is seeking a Senior Splunk Cyber Security Engineer to join our Chantilly, VA team. You will support a mission-critical initiative by administering and engineering a large enterprise Splunk environment, collaborating with cyber analysts and IT teams.

The role requires hands-on experience with Splunk administration, ES operations, Unix/Windows systems, and a DoD 8570 IAT Level II certification. A TS/SCI with CI Poly is required.

Qualifications

• Bachelor's degree or 4+ years of cybersecurity experience in lieu of a degree.
• 5+ years of experience in enterprise or cybersecurity-focused environment.
• Experience with Splunk administration and engineering.
• Experience with Splunk Enterprise Security (ES) operations and configurations.
• Proficiency with Unix and Windows environments.
• DoD 8570 IAT Level II certification (e.g., Security+, CCNA-Security, GSEC).

Responsibilities

• Manage the day-to-day operation of large enterprise Splunk deployments.
• Troubleshoot data collection issues and resolve system conditions affecting stability or integrity.
• Deploy and maintain both supported and unsupported Splunk add-ons.
• Execute Splunk Enterprise upgrades and patches.
• Configure and deploy Splunk forwarders using centralized management tools.
• Maintain and tune Splunk Enterprise Security (ES) content and performance.
• Manage knowledge objects, data models, dashboards, alerts, and operational content.
• Support API integrations and external system connectivity.
• Develop and maintain detailed engineering and compliance documentation.
• Contribute to Splunk deployment and architecture diagrams and system documentation.

Skills

Splunk administration

Splunk Enterprise Security

Unix

Windows

DoD 8570 IAT Level II

Education

Bachelor’s degree

Tools

Splunk

UNIX

Windows

Job description

MANTECH is seeking a Senior Splunk Cyber Security Engineer to join our Chantilly, VA team. You will support a mission-critical initiative by administering and engineering a large enterprise Splunk environment, collaborating with cyber analysts and IT teams.

The role requires hands-on experience with Splunk administration, ES operations, Unix/Windows systems, and a DoD 8570 IAT Level II certification. A TS/SCI with CI Poly is required.