Cyber Network Defense Analyst *TS/SCI Clearance Required*

Cyber Network Defense Analyst

*TS/SCI Clearance Required*

Location: On-site - Bay St. Louis, Mississippi

Workplace Type: On-site (SCIF Environment)

Clearance Required: Active TS/SCI (Required)

TEKsystems is Hiring a Cyber Network Defense Analyst!

TEKsystems is partnering with one of our federal clients to identify a Cyber Network Defense Analyst to support a mission-critical Security Operations Center (SOC) environment in Bay St. Louis, MS. This role is ideal for a cyber professional passionate about defending enterprise networks, threat detection, and incident response in a high-impact, national security setting.

What You'll Do

As a Cyber Network Defense Analyst, you will play a vital role in monitoring, detecting, analyzing, and responding to cyber threats across enterprise systems.
Key Responsibilities:

• Monitor and analyze network security events using enterprise SIEM tools
• Perform incident response, investigation, and threat analysis
• Proactively hunt for threats and identify anomalies or malicious activity
• Inspect network traffic for indicators of compromise and malware patterns
• Analyze logs and alerts from firewalls, IDS/IPS, proxies, and PCAP data
• Document findings through Security Event Notifications (SENs)
• Leverage OSINT to support investigations
• Collaborate with SOC team members on alerts and active threats
• Contribute to detection content tuning and continuous SOC improvement
• Stay current on emerging cyber threats and attack vectors
• Monitor shared SOC inboxes for notifications and requests

Required Qualifications

Must-Have Skills & Experience:

• Active TS/SCI clearance (required)
• Experience supporting a Security Operations Center (SOC)
• Hands-on experience with SIEM tools (Splunk preferred)
• Strong understanding of incident response and security operations
• Experience with network traffic analysis

Technical Knowledge:

• Common network protocols (TCP/UDP, HTTP, DNS, SMTP, ICMP)
• Network security devices (Firewalls, IDS/IPS, Proxies)
• Packet analysis tools (e.g., Wireshark)
• Windows operating systems and OS-level logging
• Antivirus, DLP, and host-based firewalls
• Familiarity with malware types and attack vectors
• Strong critical-thinking and analytical skills

Education & Experience Requirements

Candidates must meet one of the following:

• Bachelor's Degree (IT, Cybersecurity, Computer Science, Information Systems, Data Science)
• + 2 years relevant professional experience
• OR
• Associate's Degree
• + 6 years relevant professional experience
• OR
• High School Diploma/GED
• + 8 years relevant professional experience

Relevant experience areas include:

• Network Administration
• Systems Administration
• Unix/Linux Administration
• Software Engineering or Development
• Help Desk / IT Support

Required Certifications (At Least One)

• CompTIA: Security+, CySA+, PenTest+, Cloud+
• SANS GIAC: GFACT, GCED, GSEC, GCIA, GCFA, GDSA, GISF, GICSP
• EC-Council: CEH
• Cisco: CBROPS
• CertNexus: CFR
• Federal IT Security Institute: FITSP-O

Nice-to-Have Skills

• ArcSight experience
• Threat hunting or malware analysis
• Firewall and network security tools
• McAfee or similar endpoint security platforms
• Scripting (Python, PowerShell)
• Familiarity with SOC methodologies and processes

Work Environment & Schedule

• On-site SCIF in Bay St. Louis, MS
• 24x7 SOC operations across 4 rotating shifts
  • Front Half: Sunday-Tuesday + alternating Wednesdays (12-hour shifts)
  • Back Half: Thursday-Saturday + alternating Wednesdays (12-hour shifts)
• Must be able to work non-core hours, including nights and weekends

Why This Role Matters

This role supports a federal cybersecurity mission responsible for monitoring, detecting, analyzing, mitigating, and responding to cyber threats across enterprise systems-directly contributing to national security efforts.
Job Type & Location
This is a Contract position based out of Bay St. Louis, MS.
Pay and Benefits
The pay range for this position is $33.65 - $45.67/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 fully onsite position in Bay St. Louis,MS.
Application Deadline
This position is anticipated to close on Feb 17, 2026.
>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.