Senior System Engineer

JBW Federal-posted 3 days ago

Full-time • Senior

San Antonio, TX

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The Senior System Engineer is a highly specialized technical expert responsible for the design, implementation, securing, and advanced maintenance of complex network infrastructure across enterprise and mission-critical environments. This role serves as a technical authority, providing network architecture guidance, performing Tier III escalation and troubleshooting of high-level connectivity issues, and ensuring network reliability, performance, scalability, and regulatory compliance. The Senior System Engineer collaborates closely with cross-functional teams, including cybersecurity, systems engineering, cloud operations, and program management, to support strategic IT infrastructure initiatives and meet mission requirements.

Network Architecture & Design Design and implement scalable, secure, and resilient network systems across on-premises, cloud (AWS/Azure), and hybrid environments.
Develop detailed architecture diagrams, documentation, and technical specifications related to network topology and connectivity.
Evaluate emerging networking technologies and recommend improvements to network performance, reliability, and security posture.
High-Level Operations & Management Serve as the Tier III escalation point for complex system and network issues.
Perform root-cause analysis on critical network faults and provide long-term corrective actions.
Oversee network device upgrades, configuration management, and patching to ensure high availability and fault tolerance.
Monitor system and network performance, proactively identifying and addressing areas for improvement.
Network Security & Compliance Implement and maintain security controls related to network devices, aligned with NIST, DoD, FedRAMP, or agency-specific compliance frameworks.
Support network vulnerability management, incident response, and system hardening efforts, including firewall and VPN management.
Maintain comprehensive documentation necessary for network audits, Authorization to Operate (ATO) packages, and compliance reporting.
Automation & Cloud Connectivity Build and support network infrastructure components within cloud environments (AWS/Azure).
Utilize scripting languages (such as PowerShell, Python, and Bash) to automate network workflows, configuration deployments, and monitoring tasks.
Optimize cloud connectivity, performance, and security configurations.

Master's degree in computer science, Information Systems, Engineering, or a closely related technical field.
7-10+ years of hands-on experience in network engineering, advanced infrastructure management, or similar highly specialized technical roles.
Networking fundamentals (TCP/IP, DNS, VPNs, firewalls).
Windows and Linux server administration, especially as it relates to network services and monitoring.
Cloud platforms (AWS, Azure) and implementing hybrid connectivity solutions.
Automation and scripting (PowerShell, Python, Bash).
Proven experience working in secure or regulated federal environments (DoD, DHS, FEMA, or other federal systems).

Security+ (often required for federal contracts), AWS Solutions Architect / Azure Administrator, VMware VCP, CISSP, CCSP, or equivalent specialized network/security certifications.
Experience supporting mission-critical or geographically distributed systems.
Familiarity with Infrastructure-as-Code (IaC) tools such as Terraform or CloudFormation for network resource provisioning.
Knowledge of DevOps tools (CI/CD pipelines, GitLab/GitHub, Jenkins).

Health insurance
Dental insurance
Vision insurance
Pet insurance
Annual membership to Costco or Sam's
401K
...and much, much more!

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