Sr. Network Administrator

As aSr. Network Administrator, you are a vital part of our technology infrastructure team, ensuring the reliability, security, and performance of our network systems. You design, implement, and manage our network infrastructure, playing a key role in supporting our organization's mission and enabling seamless operations. You are a technical leader who provides guidance and mentorship to junior team members, fostering a culture of continuous improvement and innovation.

This position requires an Active DoD Secret Clearance.

This position is Fully Remote.

Job Duties and Responsibilities:

• Design, implement, and maintain secure AWS GovCloud-based network architecture
• Support high-availability configurations across Availability Zones.
• Architect network configurations to support 99.99% uptime objectives and rapid failover.
• Develop and maintain detailed network diagrams and architecture documentation.
• Configure and manage VPN gateways, Load balancers, Elastic IP configurations
• Monitor bandwidth utilization, latency, and throughput.
• Optimize performance to support high transaction volumes and low-latency user experiences.
• Implement and maintain network security controls aligned to:
• DoD cybersecurity mandates
• DISA STIG requirements
• CC SRG guidance
• Harden network components and validate configuration compliance.
• Support vulnerability remediation and patch management activities.
• Collaborate with cybersecurity teams on incident response and containment.
• Ensure secure interconnections with external DoD systems and APIs.
• Implement 24/7 monitoring and alerting for network availability and anomalies.
• Conduct proactive capacity planning and scalability assessments.
• Perform root cause analysis on outages or performance degradation.
• Validate backup and disaster recovery network pathways.
• Support secure API integrations and third-party system interfaces.
• Participate in Technical Status Meetings and provide network health updates.
• Contribute to Monthly Status Reports with network metrics and risk posture.
• Maintain and update:
• Network architecture diagrams
• Configuration management documentation
• SOPs and runbooks
• Recommend infrastructure improvements to enhance resilience and scalability.
• Support Authority to Operate (ATO) sustainment documentation as required.