BAE Systems is seeking a skilled and motivated Senior Network Administrator to support, configure, and maintain secure Cisco-based network infrastructure across both LAN Switching and Wireless environments. In this role, you will be a key technical leader responsible for ensuring our networks are reliable, compliant, and ready to support evolving mission needs. Key Responsibilities • Configure, install, and support secure Cisco LAN and Wireless network hardware across enterprise environments. • Maintain up-to-date compliance documentation, including hardware inventories, IOS standards, and configuration baselines. • Serve as a team lead for small project groups, guiding technical efforts and supporting shared objectives. • Manage and maintain the physical network layer, ensuring all IDFs are organized, labeled, and professionally maintained. • Participate in major network installations, upgrades, and modernization efforts while creating or updating required documentation. • Support day-to-day operations by handling service requests and incident tickets using enterprise ServiceNow and network monitoring tools. • Provide accurate LAN/WAN cost estimates for projects using standardized ROM templates. • Collaborate directly with vendors and contractors to drive project requirements, validate deliverables, and ensure successful implementation. • Lead planning and assessment phases of network-related projects and assist in the design, implementation, and rollout of new solutions. What You Bring • Extensive experience with Cisco networking technologies, including LAN switching, wireless infrastructure, IOS standards, and physical network installation. • Strong knowledge of enterprise networking concepts such as routing, switching, VLANs, wireless design, and network security best practices. • Hands-on experience supporting secure, compliant network environments, ideally within DoD, defense, or similarly regulated industries. • Ability to lead technical efforts, guide small project teams, and collaborate effectively with vendors, contractors, and cross-functional partners. • Proficiency with enterprise tools including ServiceNow and network monitoring/management platforms. • Strong documentation skills, with the ability to maintain configuration baselines, installation standards, and project-related materials. • Experience managing IDF environments, ensuring high levels of organization, cable management, labeling, and physical security. • Strong analytical and problem‑solving abilities, with a talent for assessing project phases, providing cost estimates, and contributing to design and implementation. • Relevant certifications such as CCNA, CCNP, or equivalent experience (highly preferred). • A proactive mindset, comfort operating in fast-paced environments, and a commitment to reliability, precision, and continuous improvement.