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Mantech seeks a motivated, career and customer-oriented Network Administrator , to join our team in San Antonio, TX . 

The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation

Responsibilities Included but are not limited to:

• Responsible for supporting customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission related infrastructures, and Taclane 175 encryption devices.  Specific configurations include routing using MPLS/VPLS, OSPF, EIGRP at the Core and Distribution devices and switching at the Access devices.
• Responsible for performing planning, deployment and quality assurance functions for system and network upgrade projects.
• Will develop high, mid and lower-level diagrams and schematics to document the system and network infrastructure for planning, historical and continuity purposes.
• Responsible for designing, installing, configuring, troubleshooting and maintaining a LAN/WAN equipment required to provide telecommunications services in a complex environment consisting of various Cisco network equipment to include Nexus and Catalyst model as well as Integrated Service Routers.
• Responsible for designing networks utilizing switching technology to include VLAN, Inter-VLAN routing, trunking, and port aggregation on the WAN/LAN environment.

 Minimum Qualifications:

• Bachelor’s degree with 12+ years of relevant experience OR associates degree with 15 years OR high school diploma with 20 years of relevant experience
• Experience configuring and troubleshooting Cisco catalyst switches
• Experience configuring and troubleshooting Cisco ASR routers
• IAT II certification (DoD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)

Preferred Qualifications:

• Experience with supporting cross-domain customer networks (VPNs, one-way data transfers, unclassified infra, Taclane 175), with expertise in Core/Distribution routing (MPLS/VPLS, OSPF, EIGRP) and Access switching.
• Experience with Linux network troubleshooting

Clearance Requirements:

• Must have a current/active TS/SCI w/ Polygraph.   

Physical Requirements:  

• Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data, ability to handle stress & work under pressure, ability to use MS Office, ability to use a PC, analytical or critical thinking skills, interpersonal & people skills, leadership skills, listening skills, multi-tasking ability, oral & written communication skills, organizational skills.

Mantech seeks a motivated, career and customer-oriented Network Administrator with a focus on Cisco Networks to join our team in Laurel, MD .

You will be part of a mission-driven team delivering enterprise infrastructure capabilities to support a global workforce engaged in national defense operations

Responsibilities include, but are not limited to:

• Maintain and upgrade network infrastructure, including routers and switches
• Update and configure antivirus software and other tools to secure the network
• Apply Security Technical Implementation Guide (STIG) updates to switches and follow Software Test and Evaluation (STE) policies
• Design and plan Cisco NEXUS network infrastructure, including setup and ongoing maintenance
• Configure Remote Authentication Dial-In User Service (RADIUS) for switch administration
• Use network monitoring and management tools such as Solarwinds to oversee network performance
• Must be willing to work a flexible schedule between 6:00am-6:00pm and may be assigned to an evening patching schedule

Minimum Qualifications:

• Bachelor’s degree in a technical discipline from an accredited college or university with 12+ years of experience as a Network Administrator. 3 additional years of Network Administration experience with an associate’s degree OR 8 years of additional experience and a high school diploma might be substituted
• Demonstrated experience downloading software and upgrading Cisco switches and firewalls
• Strong technical background in Cisco FirePower Firewalls
• IAT II certification (DoD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)

Preferred Qualifications:

• Familiarity with configuring, scripting, and managing Unix, RHEL and Windows operating systems
• Familiarity with Scanboy
• Familiarity with JIRA ticketing system
• Familiarity with Enclave environments
• Familiarity with Solarwinds
• Familiarity using LatteART and XACTA

Clearance Requirements:

• Must have a current/active TS/SCI with Polygraph

Physical Requirements:

• The candidate must be able to move, carry, and deliver workstations from the office to the customer’s desk
• The person in this position must be able to remain in a stationary position 50% of the time
• Must communicate with co-workers, management, and customers via email, phone, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

Mantech seeks a motivated, career and customer-oriented Network Administrator , to join our team in San Antonio, TX . 

The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation

Responsibilities Included but are not limited to:

• Responsible for supporting customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission related infrastructures, and Taclane 175 encryption devices.  Specific configurations include routing using MPLS/VPLS, OSPF, EIGRP at the Core and Distribution devices and switching at the Access devices.
• Responsible for performing planning, deployment and quality assurance functions for system and network upgrade projects.
• Will develop high, mid and lower-level diagrams and schematics to document the system and network infrastructure for planning, historical and continuity purposes.
• Responsible for designing, installing, configuring, troubleshooting and maintaining a LAN/WAN equipment required to provide telecommunications services in a complex environment consisting of various Cisco network equipment to include Nexus and Catalyst model as well as Integrated Service Routers.
• Responsible for designing networks utilizing switching technology to include VLAN, Inter-VLAN routing, trunking, and port aggregation on the WAN/LAN environment.

 Minimum Qualifications:

• Bachelor’s degree with 12+ years of relevant experience OR associates degree with 15 years OR high school diploma with 20 years of relevant experience
• Experience configuring and troubleshooting Cisco catalyst switches
• Experience configuring and troubleshooting Cisco ASR routers
• IAT II certification (DoD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)

Preferred Qualifications:

• Experience with supporting cross-domain customer networks (VPNs, one-way data transfers, unclassified infra, Taclane 175), with expertise in Core/Distribution routing (MPLS/VPLS, OSPF, EIGRP) and Access switching.
• Experience with Linux network troubleshooting

Clearance Requirements:

• Must have a current/active TS/SCI w/ Polygraph.   

Physical Requirements:  

• Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data, ability to handle stress & work under pressure, ability to use MS Office, ability to use a PC, analytical or critical thinking skills, interpersonal & people skills, leadership skills, listening skills, multi-tasking ability, oral & written communication skills, organizational skills.

Mantech seeks a motivated, career and customer-oriented Network Administrator with a focus on Cisco Networks to join our team in Laurel, MD .

You will be part of a mission-driven team delivering enterprise infrastructure capabilities to support a global workforce engaged in national defense operations

Responsibilities include, but are not limited to:

• Maintain and upgrade network infrastructure, including routers and switches
• Update and configure antivirus software and other tools to secure the network
• Apply Security Technical Implementation Guide (STIG) updates to switches and follow Software Test and Evaluation (STE) policies
• Design and plan Cisco NEXUS network infrastructure, including setup and ongoing maintenance
• Configure Remote Authentication Dial-In User Service (RADIUS) for switch administration
• Use network monitoring and management tools such as Solarwinds to oversee network performance
• Must be willing to work a flexible schedule between 6:00am-6:00pm and may be assigned to an evening patching schedule

Minimum Qualifications:

• Bachelor’s degree in a technical discipline from an accredited college or university with 12+ years of experience as a Network Administrator. 3 additional years of Network Administration experience with an associate’s degree OR 8 years of additional experience and a high school diploma might be substituted
• Demonstrated experience downloading software and upgrading Cisco switches and firewalls
• Strong technical background in Cisco FirePower Firewalls
• IAT II certification (DoD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)

Preferred Qualifications:

• Familiarity with configuring, scripting, and managing Unix, RHEL and Windows operating systems
• Familiarity with Scanboy
• Familiarity with JIRA ticketing system
• Familiarity with Enclave environments
• Familiarity with Solarwinds
• Familiarity using LatteART and XACTA

Clearance Requirements:

• Must have a current/active TS/SCI with Polygraph

Physical Requirements:

• The candidate must be able to move, carry, and deliver workstations from the office to the customer’s desk
• The person in this position must be able to remain in a stationary position 50% of the time
• Must communicate with co-workers, management, and customers via email, phone, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

Mantech seeks a motivated, career and customer-oriented Network Administrator , to join our team in San Antonio, TX . 

The team delivers enterprise infrastructure capabilities for a global workforce performing a wide range of missions in defense of our Nation

Responsibilities Included but are not limited to:

• Responsible for supporting customer networks involving cross-domain solutions, including VPNs, one-way data transfers, unclassified mission related infrastructures, and Taclane 175 encryption devices.  Specific configurations include routing using MPLS/VPLS, OSPF, EIGRP at the Core and Distribution devices and switching at the Access devices.
• Responsible for performing planning, deployment and quality assurance functions for system and network upgrade projects.
• Will develop high, mid and lower-level diagrams and schematics to document the system and network infrastructure for planning, historical and continuity purposes.
• Responsible for designing, installing, configuring, troubleshooting and maintaining a LAN/WAN equipment required to provide telecommunications services in a complex environment consisting of various Cisco network equipment to include Nexus and Catalyst model as well as Integrated Service Routers.
• Responsible for designing networks utilizing switching technology to include VLAN, Inter-VLAN routing, trunking, and port aggregation on the WAN/LAN environment.

 Minimum Qualifications:

• Bachelor’s degree with 12+ years of relevant experience OR associates degree with 15 years OR high school diploma with 20 years of relevant experience
• Experience configuring and troubleshooting Cisco catalyst switches
• Experience configuring and troubleshooting Cisco ASR routers
• IAT II certification (DoD 8140 required within 60 days of starting employment.  Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)

Preferred Qualifications:

• Experience with supporting cross-domain customer networks (VPNs, one-way data transfers, unclassified infra, Taclane 175), with expertise in Core/Distribution routing (MPLS/VPLS, OSPF, EIGRP) and Access switching.
• Experience with Linux network troubleshooting

Clearance Requirements:

• Must have a current/active TS/SCI w/ Polygraph.   

Physical Requirements:  

• Bending, carrying, kneeling, lifting, light work up to 20 lbs., reaching, repetitive motions, sedentary work, walking, working with data, ability to handle stress & work under pressure, ability to use MS Office, ability to use a PC, analytical or critical thinking skills, interpersonal & people skills, leadership skills, listening skills, multi-tasking ability, oral & written communication skills, organizational skills.

Job Type

Full-time

Description

You'll Come for a Job.But You'll Stay for an Exciting Career! Engineering and Designing Reliable, Responsive, Solutions.

SINCE 1976, CANNON has provided creative solutions to clients in the energy industry, water resources, public infrastructure, and commercial and residential development. We work hard. We play hard. We have fun.

JOIN CANNON as a Network Administrator (at an A/E/C firm) working in our IRVINE office. Irvine offers warm weather, beautiful scenery, and is a top bicycling city with miles of on-road bicycle lanes and mountain bike trails. It is one of the safest communities and the public schools have consistently ranked among the best in California.

NETWORK ADMINISTRATOR JOB SUMMARY

This position will manage and support the IT environment for our multi-discipline AEC engineering and design teams. We're looking for a Network Administrator who thrives in a fast-paced, hands-on environment, and someone who enjoys solving problems, supporting diverse users, and keeping systems running smoothly.

This role will support internal teams with second-tier helpdesk support, manage networking and firewall infrastructure, administer cloud-based tools, and play a key role in maintaining and improving our IT systems.

NETWORK ADMINISTRATOR JOB DUTIES

• Provides Tier 2 support for desktops, laptops, mobile devices, and peripherals.
• Monitors, configures, and maintains network infrastructure including LAN/WAN, VPN, WatchGuard firewalls, switches.
• Supports CAD/design tools such as AutoCAD, Civil 3D, and Revit including installations and network licensing.
• Administers and manages Microsoft 365, Intune, Active Directory, and Entra ID.
• Manages updates and patching across servers and user devices, including via RMM tools.
• Supports implementation of SIEM/SOC systems, document SOPs, and contribute to IT policy development.
• Coordinates with Level 1 support staff to ensure efficient ticket resolution.
• Assists with IT projects including hardware rollouts, cloud integrations, and infrastructure upgrades.
• Interacts with all departments to troubleshoot and resolve IT issues.

• Associate's or Bachelor's degree in IT, Computer Science, or related field (or equivalent work experience).
• 4+ years of experience in IT support or system administration.
• Experience with networking and firewall configuration, WatchGuard preferred.
• Proficiency in Microsoft 365 administration and Windows desktop environments.
• Proficiency with Active Directory, group policy, and remote support tools (e.g., ConnectWise, Autotask).
• Strong communication skills and a collaborative mindset.
• Experience with mobile device management (Intune).
• Familiarity with Entra ID and CMMC 2.0 compliance standards.
• Knowledge of PowerShell scripting, and Azure cloud services is a plus.
• Background supporting AEC software and network licensing.
• Broad IT knowledge with ability to jump between helpdesk and infrastructure tasks.
• Ability support other Southern California offices, up to 20% travel.

Immediate need for a talented Network Technician . This is a 12+ Months Contract (High potential of extension) opportunity with long-term potential and is located in San Jose, CA (Onsite) . Please review the job description below and contact me ASAP if you are interested.

Job ID:

Pay Range: $25- $30/hour. Employee benefits include, but are not limited to, health insurance (medical, dental, vision), 401(k) plan, and paid sick leave (depending on work location).

Key Responsibilities:

• Actual networking experience with telephones.
• How to program a phone.
• Troubleshoot a phone.
• Need strong voice experience.
• Cabling experience.
• Need strong troubleshooting experience with phones.

• Cabling
• Cisco
• Deal with medical center folks