Network Security & Systems Engineer

La Marque, City of (TX); La Marque (TX); On-site; USD 60,000 - 90,000; Full time

Job summary

The City of La Marque, TX is seeking a Network Security IT Specialist to protect and operate the City’s IT infrastructure. You will manage network security, endpoints, and enterprise applications while supporting departments across the city.

Responsibilities include monitoring for threats, incident response, applying patches, managing MFA, AD Entra ID, and Microsoft 365 services, plus documentation and compliance with CJIS where applicable.

Qualifications

• Associate’s or Bachelor’s degree in IT, Cybersecurity, or related field (or equivalent experience).
• Minimum of 2 years of IT experience with exposure to networking and/or security.
• Valid driver’s license.
• Strong troubleshooting, communication, and documentation skills.
• Certifications such as CompTIA Network+ or Security+ preferred.
• Experience with Microsoft 365 Defender and Entra ID preferred.
• Familiarity with network security concepts (firewalls, VPNs, segmentation).
• Experience in municipal or government IT environments.
• Basic understanding of cybersecurity frameworks or compliance standards.
• Familiarity with Virtual Desktop Infrastructure environments.

Responsibilities

• Monitor network and system activity for anomalies, threats, and unauthorized access.
• Assist in responding to cybersecurity incidents, including investigation and remediation.
• Support implementation of security controls such as MFA, endpoint protection, and access management.
• Perform system patching, updates, and basic vulnerability remediation.
• Maintain secure configurations for firewalls, switches, wireless networks, and endpoints.
• Configure, maintain, and troubleshoot network infrastructure, including switches, routers, firewalls, and wireless systems.
• Support Active Directory, hybrid Microsoft Entra ID environments, and Microsoft 365 services.
• Monitor system performance, uptime, and backups; resolve issues proactively.
• Assist with backup and disaster recovery processes, including data restoration.
• Maintain documentation of network configurations, systems, and IT assets.
• Provide desktop, laptop, mobile device support; respond to helpdesk tickets.
• Install, configure, and support business applications used across City departments.
• Train staff on cybersecurity awareness and proper use of City technology.
• Support IT systems across multiple departments.

Skills

Troubleshooting

Documentation

Communication

Cybersecurity awareness

Education

Associate’s or Bachelor’s degree in IT or related field

Tools

Microsoft Entra ID

MS Defender

Microsoft 365

Job description

The City of La Marque, TX is seeking a Network Security IT Specialist to protect and operate the City’s IT infrastructure. You will manage network security, endpoints, and enterprise applications while supporting departments across the city.

Responsibilities include monitoring for threats, incident response, applying patches, managing MFA, AD Entra ID, and Microsoft 365 services, plus documentation and compliance with CJIS where applicable.