Cyber Defense Analyst III with Security Clearance

BTS Software Solutions is seeking a Cyber Defense Analyst III with an active TS/SCI w/ POLY to join our team in San Antonio, TX What You''ll Get To Do: * Uses information collected from a variety of sources to monitor network activity and analyze it for evidence of anomalous behavior. * Identifies, triages, and reports events that occur in order to protect data, information systems, and infrastructure. * Finds trends, patterns, or anomaly correlations utilizing security-relevant data. Recommends proactive security measures. * Conducts analysis to isolate indicators of compromise. * Notify designated managers, cyber incident responders, and cybersecurity service provider team member of suspected cyber incidents and articulate the events history, status, and potential impact for further action in accordance with the organizations cyber incident response plan. Skills You''ll Bring * Use cyber defense tools to monitor, detect, analyze, categorize, and perform initial triage of anomalous activity. * Generate cybersecurity cases (including events history, status, and potential impact for further action) and route as appropriate. * Leverage knowledge of commonly used network protocols and detection methods to defend against related abuses. * Apply cybersecurity and privacy principles to organizational requirements (relevant to confidentiality, integrity, availability, authentication, non-repudiation). * Perform advanced manual analysis to hunt previously unidentified threats. * Conduct PCAP analysis. * Identify cyber-attack phases based on knowledge of common attack vectors and network layers, models, and protocols. * Apply techniques for detecting host-and network-based intrusions. * Working knowledge of enterprise-level network intrusion detection/prevention systems and firewall capabilities. * Understand the foundations of a hardened windows network and what native services and protocols are subject to abuse (such as RDP, Kerberos, NTLM, WMI, and SMB). * Familiarity with the fragmentation of network traffic and how to detect and evaluate fragmentation-related attacks in raw packet captures. * Conduct network traffic, protocol, and packet-level and Netflow analysis for anomalous values that may be security-relevant using appropriate tools (such as Wireshark, tshark, tcpdump). * Understand snort filters and how they are crafted and tuned to feed IDS alerting. * Understand system and application security threats and vulnerabilities to include buffer overflow, SQL injection, race conditions, covert channel, replay and return-oriented attacks, malicious code and malicious scripting. * Analyze malicious activity to determine weaknesses exploited, exploitation methods, effects on system and information. * Perform event correlation using information gathered from a variety of sources within the enterprise to gain situational awareness and determine the effectiveness of an observed attack. * Familiar with indications of Command and Control (C2) channels and what strategies attackers use to bypass enterprise defenses from a compromised host. * Demonstrate advanced knowledge of how adversaries penetrate networks and how those attacks map to detectable events across the ATTACK framework. * Understand how VBS, Jscript, and Powershell can be maliciously used within a network and what level of monitoring and auditing is required to detect. * Possess deep knowledge of active directory abuse used by attackers for lateral movement and persistence. * Provide expertise in the identification of adversarial Tactics, Techniques, and Procedures (TTPs) and in the development and deployment of signatures. * Perform after-action reviews of team products to ensure completion of analysis. * Lead and mentor team members as a technical expert. Education/Qualifications: * Eight (8) years of demonstrated experience as a CDA in programs and contracts of similar scope, type, and complexity is required. A technical bachelors degree from an accredited college or university may be substituted for two (2) years of CDA experience on projects of similar scope, type, and complexity. * Two (2) years of demonstrated and practical experience in TCP/IP fundamentals. * Two (2) years of demonstrated experience with network traffic analysis tools such as Bricata, tcpdump or Wireshark. * Three (3) years of demonstrated experience using security information and event management suites (such as Splunk, ArcSight, Kibana, LogRhythm). * Three (3) years of demonstrated experience in network analysis and threat analysis software utilization. * Requires DoD 8570 compliance with CSSP Analyst baseline certification, Information Assurance Technical (IAT) Level I or Level II certification, and Computing Environment (CE) certification. The CE certification requirements can be fulfilled with either Microsoft OS, Cent OS/Red Hat OS CE certifications. * Requires Global Information Assurances Certification (GIAC) Certified Incident Handler (GCIH) certificate or Certified Intrusion Analyst (GCIA) certificate. * Requires successful completion of the Splunk software training course ''Fundamentals 1'' * Three (3) years of demonstrated experience maintaining or managing Cloud environments such as Microsoft Azure, Amazon Web Services (AWS), using tools like Microsoft Sentinel. About BTS Software Solutions BTS Software Solutions is a Service Disabled Veteran Owned Small Business who are community-focused innovators who transform ideas into technology to serve people. We recognize that innovation is only valuable when applied towards a needed solution. Technology has no value without the hard work to turn ideas into reality. Our roots are in helping save Soldiers lives through technology. We bring that ethos to serving our community. We create solutions that touch people''s lives - products to communicate, to connect companies with customers, to stay informed, to save lives, and to enhance lives. We have a small company persona with a large company ethos and capabilities; we create elegant solutions for complex problems that will enrich peoples lives. BTS offers one of the best benefits packages in the industry : 100% Company PAID health benefits, PTO, 401K matching and vested from day one of employment, to name just a few of our benefits and perks. To learn more about BTS Software Solutions visit us at BTS Software Solutions is an Equal Opportunity Employer (EOE). All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law.

Created: 2025-11-15