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# Senior Network Engineer/Information Systems Security Manager

- **Company:** Fusion
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Salary:** $100,000.0 - $215,000.0
- **Contract:** Permanent contract
- **Skills:** Synchronous Optical Networking, Complex Networks, Cyber Security, Information Systems, Computer Networks, Ethernet, Multi-protocol Systems, OSI Models, Information Systems Security Architecture Professional, Network Architecture, Routing, TCP/IP, Network Switches, Network Routing, Firewalls (Computer Science)
- **Published:** August 10, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=d00d024c871fb839

## About the Role

Active Top Secret/SCI with Polygraph.
10+ years of relevant professional experience in network engineering, cybersecurity, information systems, or a related technical discipline.
Bachelor's degree in a relevant technical field is preferred.
An additional 4 years of relevant experience may be substituted for the degree.
Demonstrated experience supporting and securing enterprise-scale or mission-critical network infrastructure and information systems.
Strong experience with networking concepts and technologies, including: OSI model
TCP/IP
MPLS
SONET
Ethernet

Demonstrated experience with: Network routing
Network switching
Firewalls
Data protection
Enterprise network security

Strong communication, collaboration, and problem-solving skills.
Ability to work effectively across multiple offices, technical teams, and organizational stakeholders.
,
Desired Skills

Candidates with one or more of the following certifications are highly desirable:
Certified Information Systems Security Professional (CISSP)
Certified Information Security Manager (CISM)
Certified Ethical Hacker (CEH)
Offensive Security Certified Professional (OSCP) or equivalent

## Description

Senior Network Engineer / Information Systems Security Manager (ISSM) to provide cybersecurity and network engineering support across large-scale enterprise and mission network infrastructure and information systems. The ideal candidate will bring extensive experience designing, managing, securing, and supporting complex network environments while serving as a trusted cybersecurity and technical subject matter expert. This position requires a senior-level professional who can work collaboratively across multiple offices and technical teams, communicate effectively with stakeholders, and provide leadership in identifying, managing, and mitigating cybersecurity risks., Provide senior-level cybersecurity and network engineering expertise supporting large-scale enterprise and mission network infrastructure and information systems.
Lead, manage, and collaborate on network engineering and cybersecurity initiatives across multiple offices and organizations.
Participate in technical and cybersecurity forums and communicate regularly with stakeholders, technical teams, and leadership.
Assess and help manage cybersecurity risks associated with enterprise network infrastructure and information systems.
Support the design, implementation, operation, and security of complex network environments.
Apply industry best practices for network architecture, security, routing, switching, firewalls, and data protection.
Identify cybersecurity vulnerabilities and risks and assist in developing appropriate mitigation strategies.
Provide technical guidance and mentorship to other network and cybersecurity professionals.
Serve as a technical subject matter expert and contribute to the development and standardization of network and security solutions.
Collaborate with mission, engineering, operations, and security stakeholders to ensure network capabilities are secure, reliable, and aligned with mission requirements.


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