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Description

Job Title: Cyber Defense Incident Responder, Snr (L3)

As a Snr 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 customer. 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 4-year 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

-Demonstratable 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

Skills

Security, Information security, Security operations, Incident Response, Cyber Threat Analyst, Malware, Cyber security, Soc, Siem, analysis, splunk, ELK stack, Elastic Search, threat hunting, powershell, wireshark, firewall, malware analysis, ids, python, OSINT

Top Skills Details

Security,Information security,Security operations,Incident Response,Cyber Threat Analyst,Malware,Cyber security,Soc,Siem,analysis

Additional Skills & Qualifications

-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

Experience Level

Expert Level

Pay and Benefits

The pay range for this position is $55.00 - $62.45/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:

• Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Greensboro,NC.

Application Deadline

This position is anticipated to close on Nov 10, 2025.

h4>About TEKsystems:

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.