Senior Network Engineer
Listed on 2026-09-12
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IT/Tech
Network Engineer, Cybersecurity, Systems Engineer, Network Security
Senior Network Engineer — TS/SCI Required — San Antonio, TX onsite Job Description
We are seeking a highly skilled Senior Network Engineer with a deep understanding of large system architecture to support mission-critical operations. This position requires a technical expert with a proven background in operating system (OS), Cisco devices (Router, Firewall, Switch), Commercial Automation Software (CAS), and Commercial Off-The-Shelf (COTS) product life cycles. The ideal candidate will be experienced in secure communications, large-scale infrastructure planning, and Department of Defense (DoD) environments and Air Force integration lab environments.
ResponsibilitiesConfigure and Install various network devices and services ( Routers, Switches, IP addresses, VLANs, routing protocols, MPLS, VPN, QOS)
Proven experience in a network administrator roles
Excellent knowledge and troubleshooting skills on SD WAN, LAN segmentation, Cisco Switches, Cisco Wireless Access Points, Cisco Wireless Controllers, Cisco Routers, and Riverbed Bandwidth Optimizers
Maintain design of LAN/WAN including protocols and routing
Proven hands-on experience in networking, routing, and switching
Solid understanding of network operating systems (Cisco IOS)
Sharp troubleshooting skills
Ability to work independently
Deep understanding of Networking protocols ( IPSEC, HSRP, BGP, OSPF)
Solid understanding of the OSI or TCP/IP Model
Hands-on experience with Monitoring network diagnostic and network analytics tools
Excellent Written and Verbal Communication
Stay up to date with the latest networking technologies and best practices
Monitoring all active network equipment, ensuring seamless operations, system availability, and reliability
Responsibilities for a Network Engineer include but are not limited to: configuration and management of Cisco switches and routers, firewalls, and support to system administration team in deployment at new sites
Design, build, test, and troubleshoot a complex network
Troubleshooting and resolving network issues, implementing security measures, and proactively optimizing network performance
Performing network maintenance and system upgrades including service packs, patches hot fixes, and security configurations
Configure and Install various network devices and services ( Routers, Switches, IP addresses, VLANs, routing protocols, MPLS, VPN, QOS)
Monitor system resource utilization, trending, and capacity planning
Engineer Level support and troubleshooting to resolve issues.( This includes diagnosing network problems, analyzing network logs, and implementing solutions and resolve network issues)
Work within established configuration and change Management policies
Assist in network design and implementation
Troubleshoot issues with Network Deployment
Identify potential failures and recommend solutions
Liaise with Vendors and other IT personnel for Problem resolution
Update knowledge base with known errors
Bachelor’s or Master’s Degree in Computer Science, Information Technology, Engineering, or a related field.
10 years of relevant experience in network engineering and large system architecture.
Active TS/SCI clearance
In-depth understanding of:
Operating Systems (e.g., Linux, Windows Server)
CAS tools and integration
COTS product evaluation, implementation, and lifecycle management
Service Now
DoD 8570.01-M IAT Level II certification, such as:
Security CE
CCNA, CCNA-Security
- CCNP
- Strong problem-solving skills and ability to work in high-pressure environments.
- Excellent verbal and written communication skills.
- Familiarity with virtualization technologies, cloud platforms, and software-defined networking (SDN).
- Experience working with government agencies or in classified environments.
Medical, Dental, Vision (company paid for employee and dependents), Paid Time Off, Sick Leave, Paid Federal Holidays, Education and Certification Reimbursement Program, 401(k) retirement plan with safe harbor employer match after 3 months, Prepaid legal plan and plan available, Accident Insurance, Critical Illness Insurance, and Hospital Indemnity Insurance available.
EEOC StatementIPSecure does not discriminate based on race, color, religion, sex, sexual orientation, gender identity, national origin, disability or status as a protected veteran.
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