Senior Information Security Intrusion Analyst

Job Reference Code: 
Business Unit: 
Land Systems
Job Location City: 
Sterling Heights
Job Location State: 
Job Location Country: 
United States of America
Job Category: 
Information Technology
Job Description: 

Requisition Number: 1595
Location: Sterling Heights, MI (LDIVI)
Position Type: Full-Time Regular
Education Required: Bachelors Degree
Relocation Provided: No
Experience Required: 5 - 7 Years
Department: Application Supt. Security - L0043 (Indirect)

Position Description:

  • GDLS is looking for an energetic Senior Intrusion Analyst and Fireawall Admnistrator to:

    • Ensures the confidentiality, integrity, and availability of systems, networks, and data through the planning, analysis, development, implementation, maintenance, and enhancement of information systems security programs, policies, procedures, and tools.
    • Uses SIEM software intended to ensure that GDLS systems are secure from unauthorized use, viral infection, and other problems that would compromise sensitive information in terms of confidentiality, integrity, and availability, or would compromise other aspects of overall system security.
    • Detects unusual traffic and intrusions into the GDLS network.
    • Analyzes present and projected perimeter security communication traffic volumes, including system capacity, peak loading and the overall effect any traffic increase has on the network within the activity.
    • Through the monitoring of server logs and intrusion detection devices, develops metrics and reports for presentation to management concerning unauthorized network activity and traffic.
    • Assists the information security team in the preparation of perimeter security data communication hardware configuration requirements.
    • Performs internal audits on security logging systems.
    • Interacts with the user community to understand business needs for firewall requests.
    • Implements approved firewall rules.
    • Reviews and cleans up outdated firewall rules and objects annually.
    • Reviews firewall logs to make recommendations to management to adjust our security posture.
    • Interacts with GDLS business partners to understand and maintain connectivity requirements.

Position Requirements:
Key Skills:

  • Must have networking experience and understand the TCP/IP stack.
  • Must have very good written and verbal communication skills.
  • Must have strong analytical skills.
  • Must be detail-oriented, independent and organized.
  • Must have experience with Microsoft Office products: Excel, PowerPoint, and Visio.
  • Must have experience with Qradar SIEM.
  • Must have experience with Juniper, Cisco and Palo Alto firewalls.
  • Must have experience with related firewall management systems like NSM, CSM and Panorama.
  • Should be familiar with various logging methods and formats from these systems: Windows, UNIX, Cisco devices, Juniper and Palo Alto firewalls, Symantec AV Suite, McAfee HIDS and Snort NIDS.


  • Bachelor of Science degree majoring in Computer Science or Information Assurance (Preferred).


  • CISSP (Preferred)
  • SANS/GIAC Intrusion Analyst (GCIA) training / certification (Preferred)
  • US Government "Secret" Clearance (Recommended)


  • 5 years minimum on the job experience in intrusion analytics and log monitoring.

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, color, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability or any other federal, state or local protected class. General Dynamics Land Systems is committed to working with and providing accommodations to individuals with a disability. Candidates who require a reasonable accommodation due to disability for any part of the application or hiring process may contact for assistance. Determination of requests for reasonable accommodation are made on a case-by-case basis.