**ManTech** is seeking a motivated, career and customer-oriented **Senior** **Cyber Security Engineer, Detections** to join our team in **Springfield, VA.** **Responsibilities include, but are not limited to:** + Support Cyber Operations Squadron (COS) activities to publish up-to-date cybersecurity tool signatures (e.g. anti-virus and host based security systems) + Provide focused analysis, including reverse malware engineering, against intrusion, anomalies, malware, viruses to identify critical information about source, intended target, affected systems or hosts, recommended mitigation measures and risk to mission + Formulate custom Security Information and Event Management (SIEM) tool content and IDS/IPS signatures to address threats + Performs security event and incident correlation using information gathered from a variety of sources within the enterprise + Analyzes and assesses damage to the data / infrastructure as a result of cyber incidents + Performs cyber incident trend analysis and reporting. + Characterizes and performs analysis of network traffic and system data to identify anomalous activity and potential threats to resources. + Provides detection, identification, and reporting of possible cyber-attacks/intrusions, anomalous activities, and misuse activities + Create and deploy threat-based signatures for operational intrusion detection capabilities. + Create and implement detection rules from intelligence reporting **Basic Qualifications:** + Minimum Education: B.S. or 4 additional years of experience + Minimum/General Experience: 5 years of related experience + Experience with modern Windows, UNIX, Linux, network operating systems, databases, and virtual computing + Experience with Splunk + DoD 8570 certification meeting IAT Level II ((GSEC, Security+, SSCP, or CCNA-Security)) required + Experience performing analysis of network traffic and correlating diverse security logs to perform recommendations for signature development + Knowledge with implementation of counter-measures or mitigating controls. + Ability to support incident response and forensic operations as required to include static/dynamic malware analysis and reverse engineering + Experience with enterprise security tools, including Security information and event management (SIEM), Threat intelligence platforms (TIPs), or Network monitoring tools + Experience in creating, modifying, tuning, IDS signatures/SIEM correlation searches and other detection signatures. **Preferred Qualifications:** + Advanced skills in Linux/Unix (command line user - proficient and used in last 6 months) + Working knowledge of current COTS Cybersecurity technologies. + Familiar with MITRE ATT&CK Framework + CNDSP-A (GCIA, GCIH, or CEH) or CNDSP-IR (GCIH, CSIH, or CEH) certification ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.