SBD is looking for a Principal Network Systems Engineer to join our team in support of our DoD client based in Arlington, VA. The Principal Network Systems Engineer will be responsible for leading day-to-day operations management as well as the design, implementation, documentation, and troubleshooting of the enterprise server environment. The Principal Systems Engineer must have the ability to manage server infrastructure related problems, performance, and capacity as well as work hand-in-hand with the Principal Network Engineer on network infrastructure issues impacting the enterprise environment.Responsibilities Include: Manages the 'system of systems' architecture development, partitioning of functionality among applications and components, and application interfaces/interoperability concerns.Systematically reviews all existing processes and procedures and implement innovative changes to meet and exceed service level agreements.Develops and provides recommendations for technical refresh efforts and opportunities to improve capability while driving down costs through opportunities such as Virtual Desktop Infrastructure (VDI), Hyper-Converged Infrastructures, automated patch management, and balancing as-is infrastructure with to-be requirements.Provides insights and recommendations based on industry best practices and cutting technology.Manages team responsible for systems engineering, security engineering, and workstation and server vulnerability remediation and patch management.Helps prepare plans for development and installation of server according to present and future requirements.Provides expert technical support, administration, and engineering on all Microsoft Windows Operating Systems.Monitors, performance tunes, troubleshoots, and resolves systems problems to ensure system availability.Troubleshoots and resolves systems problems to ensure system availability.Provides expert technical support with entire VMWare environment.Leads and performs changes to OS, databases, applications, servers, storage, network, and backups in the data center as well as development environments.Manages the configuration, administration, upgrade, and maintenance of corporate and DR servers and related infrastructure as well as the Storage Environment.Engineers/assists in developing solutions aligned with security, uptime, and performance.Maintains awareness of system management and network monitoring and the operational support tools to maintain those functions.Works with server patch management processes and procedures to facilitate deployment.Provides for the management, testing and installation of security patches and cyber security products.Provides infrastructure architecture recommendations.Maintains systems integrity through change control and problem management procedures and communication with internal customers.Accomplishes department objectives by leading staff, organizing, and monitoring work processes.Attends and participates in team meetings, training sessions, and company sponsored programs as required.Required Experience and Qualifications:Bachelor's degree in Computer Science or a related field10+ years of progressively more difficult experience related to system/server design and administration.5+ years of experience related to server/system design and administrationMust meet DoD 8570 IAM Level II requirements, ie, must have and maintain CISSP, CASP+ or equivalentMust have and maintain at least one DoD 8570 IAT Level II Computing Environment Certification, such as VCP, AWS Solutions Architect Associate, Server+, Microsoft Server Certification, Certified Network Engineer, OR similar professional computing environment certification.Must possess an active DoD Top Secret ClearanceCurrent SCI is preferred, ability to obtain SCI is requiredKnowledge of the principles, methods, and techniques used in physical and virtual server administration and engineeringAdvanced knowledge of and ability to use:Hardware (hypervisors, hyper-converged infrastructures, blade servers, switches, routers, bridges, firewalls)Software (multiple operating systems, virtualization software, virtual desktop infrastructure, SCCM/MECM, monitoring tools, IPv4, IPv6)Other common server/network and user equipment (eg, SAN, NAS, Video bridge)Ability to solve server problems or server infrastructure issues and to manage the performance and capacity of an enterprise server environmentMust reside within a commutable distance to Arlington, VA (Ballston) in order to work onsite full time.Must be able to pass a comprehensive background check.Must be fully vaccinated for COVID-19, unless a medical exemption or religious accommodation is approved. Individuals are considered fully vaccinated two weeks after their last dose of their vaccine. Confirmation of vaccine is required.