Gray Tier Technologies is hiring: SIEM Content Developer in Washington

Primary Responsibilities: Experience with creating and implementing custom IOCs and IOAs in Crowdstrike. Experience with triaging and investigating hosts using Crowdstrike. Experienced with updating McAfee AV signatures. Experience with creating and maintaining custom Tanium packages for collecting artifacts for continuous monitoring. Provide recommendations for tuning and/or triaging notable events. Perform critical thinking and analysis to investigate cyber security alerts. Analyze network traffic using enterprise tools (e.g., Full PCAP, Firewall, Proxy logs, IDS logs, etc). Collaborate with team members to analyze an alert or a threat. Stay up to date with latest threats and familiar with APT and common TTPs. Utilize OSINT to extrapolate data to pivot and identify malicious activity. Have experience with dynamic malware analysis. Have experience performing analysis of network traffic and correlating diverse security logs to perform recommendations for response. Utilize the Cyber Kill Chain and synthesize the entire attack life cycle. Review and provide feedback to junior analysts’ investigation. Participate in discussions to make recommendations on improving SOC visibility or process. Contribute to SOP development and updating. Provide expert guidance and mentorship to junior analysts. Basic Qualifications: Candidates must have extensive experience working with various security methodologies and processes, advanced knowledge of TCP/IP protocols, experience configuring and implementing various technical security solutions, extensive experience providing analysis and trending of security log data from a large number of heterogeneous security devices, and must possess expert knowledge in two or more of the following areas related to cybersecurity: Vulnerability Assessment Intrusion Prevention and Detection Access Control and Authorization Policy Enforcement Application Security Protocol Analysis Firewall Management Incident Response Encryption Web-filtering Advanced Threat Protection Must have at least one of the following certifications: SANS GIAC: GCIA, GCIH, GCFA, GPEN, GWAPT, GCFE, GREM, GXPN, GMON, GISF, or GCIH. EC Council: CEH, CHFI, LPT, ECSA. ISC2: CCFP, CCSP, CISSP CERT CSIH. Offensive Security: OSCP, OSCE, OSWP, and OSEE. Must have TS/SCI. In addition to specific security clearance requirements, all Department of Homeland Security SOC employees are required to obtain an Entry on Duty (EOD) clearance to support this program. The ideal candidate is a self-motivated individual in pursuit of a career in cyber security. Experienced with developing advanced correlation rules utilizing tstats and datamodels for cyber threat detection. Experienced with creating and maintaining Splunk knowledge objects. Experienced managing and maintaining Splunk data models. Expertise in developing custom SPL using macros, lookups, etc., and network security signatures such as SNORT and YARA. Experience creating regex for pattern matching. Implemented security methodologies and SOC processes. Extensive knowledge about network ports and protocols (e.g., TCP/UDP, HTTP, ICMP, DNS, SMTP, etc). Experienced with network topologies and network security devices (e.g., Firewall, IDS/IPS, Proxy, DNS, WAF, etc). Hands-on experience utilizing network security tools (e.g., Sourcefire, Suricata, Netwitness, o365, FireEye, etc.) and SIEM. Experience in a scripting language (e.g., Python, Powershell, etc.) and automating SOC processes/workflow. Experience training and mentoring junior analysts. Extensive knowledge of common end user and web application attacks and countermeasures against attacks. Experience developing custom workflows within Splunk to streamline SOC processes. Experience creating SOPs and providing guidance to junior analysts. Ability to analyze new attacks and provide guidance to watch floor analysts on detection and response. Knowledgeable of the various Intel Frameworks (e.g., Cyber Kill Chain, Diamond Model, MITRE ATT&CK, etc.) and able to utilize it in their analysis workflow. Experience with cloud (e.g., o365, Azure, AWS, etc.) security monitoring and familiar with cloud threat landscape. Knowledgeable of APT capabilities and be able to implement appropriate countermeasures. Required Education/Experience: All Tier 2 analyst candidates shall have a minimum a bachelor’s degree in Computer Science, Engineering, Information Technology, Cybersecurity, or related field PLUS eight (8) years of experience in incident detection and response, malware analysis, or cyber security. #J-18808-Ljbffr