Network Administrator (3rd Shift) San Antonio, TX

Core4ce; San Antonio (TX); Hybrid; USD 65,000 - 90,000; Full time

Benefits offered by this job

401(k) with company match

Medical, dental, vision coverage

Training and certifications

Tuition assistance

Parental leave

Paid time off

Holiday schedule

Internal innovation program

Job summary

Core4ce is seeking a Network Administrator to config, install, and support network hardware/software while ensuring security compliance and standards alignment. You will plan IT development projects and manage project work including project management duties.

Ideal candidates have a Secret clearance eligibility, 1–2 years of hands-on experience, and familiarity with Palo Alto and Cisco Firewalls, VPNs, and monitoring tools such as TCPDump and Wireshark.

Qualifications

• Active Secret Clearance or eligible to obtain a Secret Clearance.
• 1–2 years of hands-on experience as a Network Administrator.
• High School Diploma or GED.
• 8570 IAT Level II Certification and CND Infrastructure Support within 6 months.
• Solid understanding of firewalls, routers, switches, and other network technologies including Palo Alto and Cisco Firewalls.
• Experience with LAN/WAN, VPN, IPS and associated technologies.
• Experience with TCPDump, Wireshark and analyzing network traffic.
• Understanding of essential network services such as DNS, SMTP, NTP, IMAP, and SNMP.

Responsibilities

• Plan and schedule the installation of new or modified network hardware and systems.
• Manage accounts and network rights.
• Configure network hardware and software infrastructure including switches, routers, firewalls, hubs, bridges, gateways, and virtual devices in VMware.
• Analyze and resolve faults, ranging from major system crashes to forgotten passwords.
• Ensure systems availability, functionality, integrity, and efficiency; maintain systems configuration.
• Manage installation and integration of system fixes, updates, and enhancements.
• Ensure rigorous application of information security/information assurance policies, principles, and practices.
• Positions either on 1st, 2nd, and 3rd shift with respective hours.

Skills

LAN/WAN

VPN

IPS

DNS

SMTP

NTP

IMAP

SNMP

Education

High School Diploma or GED

8570 IAT Level II Certification and CND Infrastructure Support within 6 months

Tools

Palo Alto

Cisco Firewalls

TCPDump

Wireshark

Job description

Core4ce is looking for a Network Administrator to join the team. The Network Administrator will configure, install, and support network hardware and software infrastructure. The candidate will ensure that all network equipment complies with industry and corporate standards as well as conduct routine preventative measures and implement and maintain network security and ensure security compliance. This role will be responsible for the planning and implementation of future IT development projects and undertaking project work including project management duties.

Responsibilities:

• Planning and scheduling the installation of new or modified network hardware and systems
• Managing accounts and network rights
• Configures network hardware and software infrastructure including switches, routers, firewalls, hubs, bridges, gateways, and virtual devices in VMware
• Analyzes and resolves faults, ranging from major system crash to a forgotten password
• Ensuring systems availability, functionality, integrity, and efficiency; maintaining systems configuration
• Managing the installation and integration of system fixes, updates, and enhancements
• Ensuring the rigorous application of information security/information assurance policies, principles, and practices
• Positions either on 1st, 2nd, and 3rd shift - the shift hours are 1st – 6:00 am to 2:30 pm, 2nd 2:00 pm – 10:30 pm, and 3rd – 10:00 pm – 6:30 am (the following day).

This position is designed to be flexible, with responsibilities evolving to meet business needs and enable individual growth.

Requirements

• Active Secret Clearance or eligible to obtain a Secret Clearance
• 1-2 years of hands‑on experience as a Network Administrator.
• High School Diploma or GED
• 8570 IAT Level II Certification and CND Infrastructure Support within 6 months
• Demonstrating a solid understanding of firewalls, routers, switches, and other network technologies including Palo Alto and Cisco Firewalls
• Experience with LAN/WAN, VPN, IPS and associated technologies
• Experience with TCPDump, Wireshark and analyzing network traffic
• Understanding of essential network services such as DNS, SMTP, NTP, IMAP, and SNMP

Why Work for Us?

Core4ce is a team of innovators, self‑starters, and critical thinkers—driven by a shared mission to strengthen national security and advance warfighting outcomes.

We offer:

• 401(k) with 100% company match on the first 6% deferred, withimmediatevesting
• Comprehensive medical, dental, and vision coverage—employee portion paid 100% by Core4ce
• Unlimitedaccess totrainingand certifications, with no pre-set cap on eligible professional development
• Tuition assistancefor job-related degrees and courses
• Paidparental leave, PTO that grows with tenure, and generous holiday schedules
• Got a big idea? At Core4ce, The Forge gives every employee the chance to propose bold innovations and help bring them to life with internal backing.

Join us to build a career that matters—supported by a company that invests in you.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy), national origin, disability, veteran status, age, genetic information, or other legally protected status. Core4ce provides the listed pay range for this position as a general guideline only and not as a guarantee of compensation or salary. Final offers may take into account a variety of factors, including, but not limited to, job responsibilities, education, experience, knowledge, skills, abilities, internal equity, market data alignment, any applicable collective bargaining agreement, and other legal requirements.