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25D Cyber Network Defender Jobs (NOW HIRING)

Monitise

Cyber Network Engineer

Berkeley Heights, NJ

$128K - $216K/yr

Job Title Cyber Network Engineer About your role: You will lead the design, review and governance of enterprise network security architectures that support cybersecurity strategy across hybrid and ...

Fiserv, Inc.

Cyber Network Engineer

Berkeley Heights, NJ · On-site

$128K - $216K/yr

Job Title Cyber Network Engineer About your role: You will be at the forefront of protecting ... Your role will be crucial in defending our network systems, data, and infrastructure from potential ...

Monitise

Cyber Network Engineer

Omaha, NE

$128K - $216K/yr

Job Title Cyber Network Engineer About your role: You will lead the design, review and governance of enterprise network security architectures that support cybersecurity strategy across hybrid and ...

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All Jobs25D Cyber Network Defender Jobs

25D Cyber Network Defender information

See salary details

$29.5K

$122.1K

$197.5K

How much do 25d cyber network defender jobs pay per year?

As of Jul 3, 2026, the average yearly pay for 25d cyber network defender in the United States is $122,108.00, according to ZipRecruiter salary data. Most workers in this role earn between $100,500.00 and $149,500.00 per year, depending on experience, location, and employer.

Where can you be stationed as a 25D?

As a 25D Cyber Network Defender, you can be stationed at various military bases worldwide, including domestic and overseas locations. Assignments depend on the needs of the Army and may involve working in secure facilities, remote environments, or deployed settings, often requiring knowledge of cybersecurity tools and protocols.

What is the difference between 25D Cyber Network Defender vs 25Q Signal Support Systems Specialist?

Aspect25D Cyber Network Defender25Q Signal Support Systems Specialist
CertificationsCompTIA Security+, CISSP (preferred)CompTIA Security+, Cisco certifications
Work EnvironmentCybersecurity teams, network defenseCommunications and signal support, communication systems
Industry UsageMilitary cybersecurity, defense agenciesMilitary communications, signal support units

While both roles serve military IT and communication functions, the 25D Cyber Network Defender focuses on protecting networks from cyber threats, whereas the 25Q Signal Support Systems Specialist handles communication systems support. The roles share certifications like Security+ but differ in work environment and primary responsibilities.

What does a 25D do in the army?

A 25D Cyber Network Defender in the army is responsible for protecting military computer networks from cyber threats, conducting vulnerability assessments, and implementing security measures. They work with cybersecurity tools, monitor network activity, and may hold certifications like CompTIA Security+ or CISSP. Their role is essential for maintaining the security and integrity of military communications and data systems.

What jobs can you get with a 25d MOS?

A 25D Cyber Network Defender is qualified for roles such as cybersecurity analyst, network security specialist, or information security technician. These positions involve protecting military and organizational networks, often requiring knowledge of firewalls, intrusion detection systems, and security protocols, with certifications like CompTIA Security+ being beneficial.

How much does a 25D Cyber Network Defender make?

A 25D Cyber Network Defender typically earns between $50,000 and $80,000 annually, depending on experience, certifications, and location. Entry-level positions may start lower, while experienced defenders with certifications like CompTIA Security+ or CISSP can earn higher salaries in cybersecurity environments that require strong technical skills and knowledge of network defense tools.
More about 25D Cyber Network Defender jobs
What cities are hiring for 25D Cyber Network Defender jobs? Cities with the most 25D Cyber Network Defender job openings:
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What job categories do people searching 25D Cyber Network Defender jobs look for? The top searched job categories for 25D Cyber Network Defender jobs are:
25D Cyber Network Defender jobs near you
Infographic showing various 25D Cyber Network Defender job openings in the United States as of June 2026, with employment types broken down into 1% As Needed, and 99% Full Time. Highlights an 93% Physical, 3% Hybrid, and 4% Remote job distribution, with an average salary of $122,108 per year, or $58.7 per hour.
Cyber Network Defender (ISSO)

Cyber Network Defender (ISSO)

General Dynamics Mission Systems, Inc

San Antonio, TX • On-site

$82K - $88K/yr

Full-time

Medical, Retirement

Posted 15 days ago

General Dynamics Mission Systems rating

8.2

Company rating: 8.2 out of 10

Based on 28 frontline employees who took The Breakroom Quiz

83rd of 202 rated software companies

Job description

Basic Qualifications
Education Requirements:
Bachelor's degree in a related specialized area or equivalent relevant experience is required, plus a minimum of 2 years of relevant experience; or a Master's degree.
Clearance Requirements:
Department of Defense TS/SCI security clearance is required at time of hire with the ability to obtain a Polygraph within a reasonable amount of time. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.
Responsibilities for this Position
General Dynamics Mission Systems has an immediate opening for a Cyber Network Defender (ISSO). This position provides an opportunity to further advance the cutting-edge technology that supports some of our nation's core defense/intelligence services and systems. General Dynamics Mission Systems employees work closely with esteemed customers to develop solutions that allow them to carry out high-stakes national security missions.
Role and Position Objectives: Join our team as a Cyber Network Defender (ISSO) for Space, Cyber and Intelligence Systems! You'll be part of a versatile team managing the entire Cyber lifecycle, from governance and policy to accreditation, continuous monitoring, and incident response.
What You'll Experience:
  • Overseeing the Cyber lifecycle, including risk management, vulnerability analysis, and continuous monitoring.
  • Ensuring compliance with government security requirements and DoD policies.
  • Utilizing tools like Splunk, Nessus, and VMware for security monitoring and analysis.
  • Conducting hands-on reviews and maintaining security configurations.

What You Bring to the Table:
  • Proficiency in Linux and Windows operating systems.
  • Experience with Risk Management Framework (RMF) and vulnerability analyses.
  • Familiarity with IT government security standards like ICD 503, NISPOM, NIST, and DIACAP.
  • Ability to provide RMF support and conduct security certification tasks.

What Sets You Apart:
  • Strong experience with utilizing SIEM tools like SPLUNK with creation of SPLUNK dashboards.
  • Strong technical knowledge of Linux and Windows commands and utilities.
  • Expertise in security tools such as SCAP Compliance Checker and Clearswift.
  • In-depth understanding of government IT security policies and directives.
  • Hands-on experience with security accreditation and certification processes.
  • Ability to ensure all security IA service requirements are met.

Our Commitment to You:
  • Continuous learning and development opportunities.
  • Working with award-winning teams on impactful research projects.
  • Competitive benefits include 401k matching, flex time off, healthcare, and wellness programs.
  • A supportive and engaging work environment with various employee resource groups.

INTERFACE:
  • Primary interfaces are Government Program Information Systems Security Manager (ISSM), Operational Team Leads, internal customers, external customers, suppliers
  • Establish and maintain a strong working relationship with all team members and across all teams

A minimum of an IAM Level II or IAT Level II/III (DoD 8570/8140.01) certification is required at time of hire.
CLEARANCE REQUIREMENTS:
Current or active Department of Defense Top Secret clearance with SCI eligibility required with ability to obtain a Polygraph is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed within our facilities, U.S. citizenship is required.
Workplace Options: This position is based 100% on-site in San Antonio, Texas.
Salary Note
This estimate represents the typical salary range for this position based on experience and other factors (geographic location, etc.). Actual pay may vary. This job posting will remain open until the position is filled.
Combined Salary Range
USD $82,015.00 - USD $88,743.00 /Yr.
Company Overview
General Dynamics Mission Systems (GDMS) engineers a diverse portfolio of high technology solutions, products and services that enable customers to successfully execute missions across all domains of operation. With a global team of 12,000+ top professionals, we partner with the best in industry to expand the bounds of innovation in the defense and scientific arenas. Given the nature of our work and who we are, we value trust, honesty, alignment and transparency. We offer highly competitive benefits and pride ourselves in being a great place to work with a shared sense of purpose. You will also enjoy a flexible work environment where contributions are recognized and rewarded. If who we are and what we do resonates with you, we invite you to join our high-performance team!
Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

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