Senior Splunk Cyber Security Engineer

Senior Splunk Cyber Security EngineerMantech seeks a motivated, career, and customer-oriented Senior Splunk Cyber Security Engineer to join our team in Chantilly, VA.In this role, you will support a mission-critical initiative and contribute directly to cybersecurity operations through the administration and engineering of a large enterprise Splunk environment. This position is ideal for professionals with strong hands-on experience in system integration, data management, and cyber defense initiatives. You will play a key role in maintaining and tuning Splunk systems, while collaborating with technical teams and cyber analysts across a dynamic enterprise environment.Responsibilities include, but are not limited to:Managing the day-to-day operation of large enterprise Splunk deploymentsTroubleshooting data collection issues and resolving system conditions affecting stability or integrityDeploying and maintaining both supported and unsupported Splunk add-onsExecuting Splunk Enterprise upgrades and patchesConfiguring and deploying Splunk forwarders using centralized management toolsMaintaining and tuning Splunk Enterprise Security (ES) content and performanceManaging knowledge objects, data models, dashboards, alerts, and operational contentSupporting API integrations and external system connectivityDeveloping and maintaining detailed engineering and compliance documentationContributing to Splunk deployment and architecture diagrams and system documentationMinimum Qualifications:Bachelor's degree, or 4+ additional years of cybersecurity experience in lieu of a degree5+ years of experience in an enterprise and/or cybersecurity-focused environmentExperience with Splunk administration and engineeringExperience with Splunk Enterprise Security (ES) operations and configurationsProficiency with Unix and Windows environmentsDoD 8570 IAT Level II certification (e.g., Security+, CCNA-Security, GSEC)Preferred Qualifications:Splunk certifications such as Architect, Consultant I/II, Admin, or Power UserExperience with scripting or programming languages (e.g., Bash, Python, Java, Perl,.NET)Familiarity with developing and deploying operational and security use cases within SplunkClearance Requirements:Must have a current/active TS/SCI with CI PolygraphPhysical Requirements:Must be able to remain in a stationary position 50% of the timeOccasionally move 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