Job Description
Job Title: Cyber Defense Incident Responder, Senior (L3)
Location: Greensboro, NC, 27409
Duration: 05+ Months
As a Senior Cyber Defense Incident Responder within the Global Cybersecurity Operations Center (CSOC) you will play a crucial role as a key technical expert responsible for managing and responding to advanced cyber threats, conducting in depth investigations, and supporting the overall security posture of The Client Group. This role combines hands-on technical expertise with mentoring responsibilities, ensuring effective threat detection, incident response, and continuous improvement of SOC capabilities.
What you will do:
- Analyze and respond to complex security incidents and alerts generated by SOC tools (e.g., SIEM, EDR, IDS/IPS)
- Investigate and resolve escalated incidents from Level 1 and Level 2 analysts, ensuring swift containment and remediation
- Lead investigations into cybersecurity incidents, including malware infections, data breaches, and insider threats
- Perform digital forensics to collect, analyze, and preserve evidence for legal or compliance requirements
- Provide incident reports with detailed root cause analyses and actionable recommendations
- Use threat intelligence to identify patterns and indicators of compromise (IOCs) relevant to the organization
- Work closely with junior analysts to provide guidance, training, and mentorship, fostering a culture of growth and knowledge sharing
- Collaborate with IT, cybersecurity, and business stakeholder teams to implement and improve security controls
- Support the continuous improvement of SOC processes, tools, and technologies to enhance efficiency and effectiveness.
- Identify gaps in detection and response capabilities and recommend improvements to SOC leadership.
- Bachelor’s degree in Computer Science or a related 4year technical degree
- Minimum 7 years of experience in supporting cyber defense operations in highly complex enterprise networks. Experience in SOC, SIRT, or CSIRT capacities
- One or more of the following certifications: GIAC Certified Intrusion Analyst, GCIH Certified Incident Handler, GCIA Certified Intrusion Analyst, CISSP
- Experience in enterprise cybersecurity environment investigating targeted intrusions through complex network segments
- Expert understanding of Advanced Persistent Threat (APT), Cybercrime, and Hacktivist tactics, techniques, and procedures (TTPs)
- Subject Matter Expert in cybersecurity principles, threat lifecycle management, incident management
- Comprehensive knowledge of various operating systems (Windows, OS X, Linux), network protocols, and application layer protocols
- Demonstrable experience in scripting languages (may include Powershell, Python, PERL, etc.)
- Understanding of the Cyber Kill Chain methodology, the NIST framework, the MITRE ATT&CK framework, and SANS Critical Security controls
- Working knowledge in modern cryptographic algorithms and systems
- Experience working with and tuning signatures, rules, signatures, and security technologies (IDS/IPS, SIEM, Sandboxing tools, EDR, email security platforms, user behavior analytics
- Network design knowledge including security architecture
- Strong analytical and technical skills in network defense operations including experience with incident handling (detection, analysis, triage)
- Conceptual understanding of cyber threat hunting
- Prior experience and ability analyzing cybersecurity events to determine true positives and false positives. Including cybersecurity alert triage, incident investigation, implementing countermeasures, and managing incident response
- Previous experience with SIEM platforms and log aggregation systems that perform collection, analysis, correlation, and alerting
- Ability to develop rules, filters, views, signatures, countermeasures, and other cyber defense platforms as well as the ability to support analysis and detection continual improvement
- Knowledge of new and emerging cybersecurity technologies
- Ability to create technical documents as well as stakeholder sitreps and briefing documents
Preferred Qualifications:
- Deep Cybersecurity Operations Center experience in the following: intelligence driven detection, security principles, threat lifecycle management, incident management, digital forensics and investigations, network monitoring, endpoint monitoring, OT security principles
- CSOC Process Management experience, to include process and procedure management, CSOC initiative management, continual operational improvement
- Preferred certifications: CISSP, GCIH, GCIA, Linux+, CCNA, CCNP
- Ability to demonstrate analytical skills, technical knowledge, and practical application of cyber and information security principles to both business leaders/key stakeholders as well as technical teams and SMEs
- Demonstrated knowledge in cyber defense policies, procedures, and regulations
- Knowledge of cyber vulnerability management processes
- Knowledge of common user and system authentication and authorization mechanisms
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