Network Based Systems Analyst II

• Must be a US Citizen 
• Must have an active TS/SCI clearance
• Must be able to obtain DHS Suitability prior to starting employment  
• 2+ years of directly relevant experience in network investigations

• Assists the Government lead in coordinating teams in preliminary incident response investigations
• Assists the Government lead with interfacing with the customer while on site
• Determines appropriate courses of actions in response to identified and analyses anomalous network activity
• Assesses network topology and device configurations identifying critical security concerns and providing security best practice recommendations
• Assists with the writing and publishing of Computer Network Defense guidance and reports on incident findings to appropriate constituencies
• Collects network intrusion artifacts (e.g., PCAP, domains, URI’s, certificates, etc.) and uses discovered data to enable mitigation of potential Computer Network Defense incidents
• Analyzes identified malicious network activity to determine weaknesses exploited, exploitation methods, effects on system and information
• Collects network device integrity data and analyze for signs of tampering or compromise
• Assists with real-time CND incident handling (i.e., forensic collections, intrusion correlation and tracking, threat analysis, and advising on system remediation) tasks to support onsite engagements

• In depth knowledge of CND policies, procedures and regulations
• In depth knowledge of TCP/IP protocols
• In depth knowledge of standard protocols – ICMP, HTTP/S, DNS, SSH, SMTP, SMB, NFS, etc.
• In depth knowledge and experience of Wifi networking
• In depth knowledge and experience of network topologies DMZ’s, WAN’s, etc.
• Substantial knowledge of Splunk (or other SIEM’s)
• Understanding of MITRE Adversary Tactics, Techniques and Common Knowledge (ATT&CK)
• Knowledge of Computer Network Defense policies, procedures, and regulations
• Knowledge of defense-in-depth principles and general attack stages with respect to network security architecture
• Ability to characterize and analyze network traffic to identify anomalous activity and potential threats to network resources
• Ability to identify and analyze anomalies in network traffic using metadata
• Experience with reconstructing a malicious attack or activity based on network traffic
• Experience examining network topologies to understand data flows through the network
• Must be able to work collaboratively across physical locations

• Python programming experience
• Strong math and science background
• Experience with Carnegie Mellon SiLK tool suite

• One or more of the following professional certifications: GNFA, GCIH, GCIA, GSEC, CASP+, CySA+, PaLMS, FedVTE
• GSEC (SANS401), Arcsight (or other SEIM solution), Network+, Security+