Senior Cyber Security Engineer

Salary: $100,000 - 140,000 per year Requirements: Bachelors degree or 4+ years of equivalent experience Over 5 years in cyber security At least 3 years with Splunk Enterprise Security Familiarity with Unix, Linux, and Windows operating systems for security integration Experience navigating accreditation processes and ICD 503 standards Background in network documentation related to security compliance, configuration management, and patching Valid DoD 8570 IAT Level II or IAT Level III certification Preferred: Experience with scripting languages such as Bash, Python, or Java, and various analytical tools Preferred: Advanced Splunk certifications including Architect or Consultant, and IT Service Intelligence (ITSI) experience Preferred: Cribl Engineer Certification with experience in security and operational use cases Clearance: Active TS/SCI with Polygraph required Responsibilities: Overseeing the daily operations of a large Splunk environment, addressing and resolving data collection challenges to maintain system integrity Installing and managing both supported and unsupported Splunk Add-ons for various data sources, and performing API integrations Creating detailed deployment documentation to outline specifications, methods, and architectural considerations Rapidly designing and deploying forwarders with centralized configuration management using the Splunk Deployment Server Managing Knowledge Object Management, including Common Information Model (CIM) tuning to ensure data accuracy Collaborating with stakeholders to guarantee systems meet all operational requirements Proposing and implementing approved process and policy enhancements to strengthen cyber defense capabilities Technologies: API Architect Bash Java Linux Network Python Security Splunk Unix Windows Support More: MANTECH is looking for a dedicated and customer-focused Senior Splunk Cyber Security Engineer to join our team in Chantilly, VA. We value technical expertise and a proactive attitude as you will be instrumental in supporting our Sponsors system accreditation efforts. Our team offers opportunities for professional growth and development, a collaborative working environment, and competitive benefits. If you are ready to take your career to the next level while making a significant impact on our cyber security initiatives, we invite you to apply. last updated 34 week of 2026