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The Mid/Sr System Administrator will support system administration for a complex network, ensuring optimal performance and security management while troubleshooting issues and managing system deployments.

Lead design, implementation, and optimization of enterprise application delivery and DDI infrastructure using F5 and Infoblox. Architect highly available GSLB, secure DNS, and IPAM across hybrid multi-cloud, ensure DoW STIG/IL compliance, perform advanced troubleshooting, collaborate cross-functionally, and produce architectural documentation and standards.

Design, implement, and secure network architectures including firewalls and VPNs; troubleshoot complex network and security incidents; mentor junior engineers; collaborate with customers and program management; administer production networks, monitor logs, produce health/performance reports, document root cause analyses and knowledge articles, and create automation and process improvements.

Design and implement microservices-based applications, collaborate in Agile teams, and apply AI tools for enhancing system reliability in national air traffic operations.

Lead high-assurance cybersecurity evaluations for mission-critical systems, develop and review system engineering and security documentation, identify and document security deficiencies, support DoD and government C&A processes, and translate vulnerabilities into risk-mitigation guidance while leading small teams.

Lead administration and integration of complex software configuration management systems. Design and implement CM processes, maintain build/staging/test environments, create build scripts, integrate automated tools, run audits, produce metrics and reports, and support governance boards. Provide tool administration (ELM, Jenkins, Git, Maven, Eclipse), CM training, and change control for large technical programs, ensuring version control and configuration integrity across software and hardware lifecycles.

Provide hands-on administration of Linux and Windows systems in a secure, high-performance environment. Design, implement, and sustain containerized and VM architectures using Kubernetes, Docker, and Podman. Apply RMF security controls, perform system configuration, support network concepts, and assist SAP/JSIG-compliant systems. Communicate with customers, work independently, and support cloud integrations and vulnerability scanning tools.

The Firewall Engineering Architect leads technical oversight for NASA's security initiatives, focusing on firewall architecture, team leadership, and strategic design for network protection.

Design, build, and maintain secure, scalable full-stack applications for a DoD contract management platform. Develop RESTful APIs and microservices, integrate with DoD financial systems, implement RBAC and secure coding per STIGs/RMF, and support DevSecOps, CI/CD, testing, and release processes in an Agile environment.

Lead design, architecture, and implementation of safety-critical Air Traffic Management software. Drive technical planning, code reviews, AI-assisted development governance, troubleshooting, integration/verification, and CI/CD/tooling improvements. Mentor engineers and establish standards for responsible AI usage, validation, traceability, and security.