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# Senior Network/Cybersecurity Engineer

- **Company:** Alamo City Engineering Services, Inc.
- **Location:** Spring Branch, TX, United States
- **Experience:** Expert
- **Salary:** $95,000.0 - $115,000.0
- **Contract:** Permanent contract
- **Skills:** Microsoft Access, Microsoft Windows, JIRA, Cloud Computing Security, Collaborative Software, Complex Networks, Cyber Security, Network Security, Network Architecture, Network Monitoring, Zero Trust Network Access, Change Tracking
- **Published:** June 29, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=422b8ae86bbf1fdb

## About the Role

Do you have experience in Security technology solutions implementations?, * Minimum 10 years of experience as a Network Administrator or Network Engineer in enterprise environments

 * At least 5 years of hands-on experience with Microsoft 365 GCC High
 * At least 5 years of experience as a Zscaler SME, including ZIA and ZPA deployments and operations
 * Strong understanding of secure networking, cloud security, and access control concepts
 * Experience using JIRA for task, incident, and change tracking
 * Proven ability to troubleshoot complex network and cloud security issues
 * Strong written and verbal communication skills
 * Ability to work independently and as part of a collaborative technical team
 * Must reside within a one-hour driving distance of Spring Branch, Texas, * Experience supporting DoD or other federal government environments
 * Familiarity with Zero Trust architecture concepts
 * Experience working in regulated or high-security environments
 * Relevant certifications (e.g., networking, cloud, or security)

## Description

Alamo City Engineering Services, Inc. (ACES) is seeking a highly experienced Senior Network Administrator to support mission-critical federal and DoD environments. This role requires deep expertise in enterprise networking, cloud security, and secure collaboration platforms, with a strong emphasis on Microsoft 365 Government Community Cloud High (GCC High) and Zscaler cloud security solutions.

The ideal candidate is a hands-on senior technologist who can operate independently, lead complex deployments, and support secure, highly available network environments while collaborating closely with cybersecurity, engineering, and program leadership teams., * Design, implement, operate, and maintain secure enterprise network environments supporting federal and DoD missions

 * Serve as a senior technical resource for Microsoft 365 GCC High, including administration, security configuration, troubleshooting, and lifecycle management
 * Act as a Zscaler Subject Matter Expert (SME) supporting:

 - Zscaler Internet Access (ZIA)

 - Zscaler Private Access (ZPA)

 - Policy design, deployment, optimization, and troubleshooting
 * Support secure access architectures aligned with Zero Trust principles
 * Monitor network performance, availability, and security posture; identify and remediate issues proactively
 * Collaborate with cybersecurity teams to ensure compliance with applicable DoD and federal security requirements
 * Document network architectures, standard operating procedures, and configuration baselines
 * Track tasks, incidents, and changes using JIRA
 * Provide technical leadership and mentoring to junior administrators and engineers as needed
 * Participate in change management, incident response, and operational readiness activities


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