Senior Cybersecurity Engineer

Responsibilities Position SummaryPeraton is seeking a highly experienced Senior Cybersecurity Engineer to support federal government cybersecurity operations and enterprise security analytics initiatives. This position is responsible for designing, implementing, securing, and maintaining complex Splunk environments that support mission-critical security monitoring, threat detection, incident response, compliance, and operational analytics requirements within a government contracting environment.The ideal candidate will possess advanced expertise in Splunk engineering, cybersecurity operations, and federal security compliance frameworks, with demonstrated experience supporting secure enterprise systems in highly regulated environments. This role requires collaboration with government stakeholders, program managers, cybersecurity teams, and enterprise infrastructure personnel to ensure scalable, resilient, and compliant security solutions.Key ResponsibilitiesDesign, implement, administer, and optimize enterprise Splunk architectures supporting federal cybersecurity operations and mission requirements.Engineer and maintain scalable data ingestion, indexing, normalization, correlation, visualization, alerting, and reporting capabilities across classified and unclassified environments.Develop and maintain Splunk Enterprise Security (ES) use cases, correlation searches, dashboards, threat detections, and automated alerting capabilities.Collaborate with government customers, ISSOs, ISSMs, SOC analysts, system administrators, and program leadership to gather operational and compliance requirements.Integrate Splunk with enterprise security technologies including firewalls, IDS/IPS, EDR solutions, vulnerability management tools, identity and access management systems, cloud security platforms, and network monitoring solutions.Support Security Operations Center (SOC) activities including threat hunting, incident response, forensic investigations, and continuous monitoring initiatives.Implement cybersecurity best practices and hardening standards for Splunk infrastructure in accordance with federal security requirements.Ensure Splunk environments comply with federal cybersecurity frameworks including NIST 800-53, RMF, FISMA, DOE cybersecurity directives, Zero Trust Architecture, and Continuous Diagnostics and Mitigation (CDM) requirements.Develop custom Splunk applications, APIs, scripts, and automation workflows to improve operational efficiency and security visibility.Perform system upgrades, patch management, performance tuning, troubleshooting, and capacity planning for distributed Splunk environments.Support Authority to Operate (ATO) processes by developing and maintaining required cybersecurity documentation, artifacts, and audit evidence.Create and maintain architecture diagrams, standard operating procedures, security documentation, and technical implementation guides.Provide technical leadership, mentorship, and guidance to junior engineers and cybersecurity analysts.Participate in cybersecurity assessments, audits, tabletop exercises, and compliance reviews. Qualifications Required QualificationsMinimum of 16 years with HS; 12 years with BS/BA; Minimum of 10 years with MS/MA; Minimum of 7 years with Ph.D.Bachelor’s degree in Cybersecurity, Information Technology, Computer Science, Engineering, or related discipline; equivalent experience may be substituted.Strong expertise in Splunk distributed architecturesExperience supporting Security Operations Centers (SOC) and enterprise continuous monitoring programs.Demonstrated experience implementing and maintaining systems in compliance with:NIST 800-53RMF (Risk Management Framework)FISMAZero Trust ArchitectureDOE or other federal cybersecurity directivesStrong understanding of cybersecurity principles including threat detection, incident response, vulnerability management, identity management, and network security.Excellent analytical, troubleshooting, and communication skills.Ability to work effectively in fast-paced, mission-focused government environments.Ability to obtain DOE Q/SCI clearance.Preferred QualificationsSplunk certifications such as:Splunk Enterprise Certified ArchitectSplunk Enterprise Security Certified AdminSplunk Core Certified Power UserIndustry certifications such as:CISSPGIACSecurity+CEHCySA+Experience supporting Department of Energy (DOE) Peraton Overview Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the world’s leading mission capability integrator and transformative enterprise IT provider, we deliver trusted, highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land, sea, space, air, and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day, our employees do the can’t be done by solving the most daunting challenges facing our customers. Visit peraton.com to learn how we’re keeping people around the world safe and secure. Target Salary Range $135,000 - $216,000. This represents the typical salary range for this position. Salary is determined by various factors, including but not limited to, the scope and responsibilities of the position, the individual’s experience, education, knowledge, skills, and competencies, as well as geographic location and business and contract considerations. Depending on the position, employees may be eligible for overtime, shift differential, and a discretionary bonus in addition to base pay. EEO EEO: Equal opportunity employer, including disability and protected veterans, or other characteristics protected by law. Job SummaryRequisition ID: 2026-166738Position Category: Cyber SecurityClearance: CBOSS Agency Clearance