Enterprise Solutions and Management (ESM) is a rapidly growing government contractor that provides strategic IT services that meet mission needs for Defense and Federal customers. We are hiring a System Administrator / Virtual Administrator to support an enterprise-level program within a federal environment.Job Description and ResponsibilitiesManages and maintains virtualized infrastructure across on-premises data centers and private, public, and hybrid cloud environments. Implements, upgrades, patches, and troubleshoots hosts, hypervisors, virtual machines, applications, and supporting infrastructure across development, test, pre-production, and production environments. Monitors system health, performance, capacity, and availability; automates administrative tasks and optimizes virtualized environments to ensure stability, security, and performance. Maintains accurate system configurations and documentation, supports capacity planning and performance tuning, and contributes to virtualization disaster recovery and fault-tolerance planning. Required Knowledge, Skills and Abilities (KSA)Knowledge of virtualization technologies, hypervisors, virtual machines, and supporting infrastructure across on-premises and cloud environments.Ability to implement, upgrade, patch, and maintain virtualized systems across development, test, and production environments.Ability to monitor and troubleshoot virtualization infrastructure to maintain system availability, stability, security, and performance.Knowledge of cloud computing and private, public, and hybrid cloud environments.Ability to perform capacity planning, performance analysis, tuning, and optimization of virtualized systems.Knowledge of virtualization disaster recovery, fault tolerance, configuration management, and system documentation practices.Desired KSABe a positive, self-motivated, and proactive person with the ability to adapt to change and tolerate stressful situationsCandidate must communicate effectively with team members, team lead, management, and government customersMust have the ability and desire to research and develop creative solutions to unique problems with minimal supervisionMinimum Training, Education, and CertificationsSeven (7) years of progressive experience in the management and maintenance of virtualized server environments and hosted applications. At least two years of qualifying experience must include managing successful large scale, multi-disciplinary (network, virtualization, systems administration) projects involving virtual serversDOD 8570 baseline certification - IAT Level II Minimum Clearance Top SecretPhysical RequirementsRequired to stand, walk and sit; communicate verbally both in person and by telephone; use hands to finger, handle or feel objects or controls; reach with hands and arms. Regularly required to stoop, kneel, bend, crouch and lift up to 25 pounds. Specific vision abilities required by this job include close vision, distance vision, depth perception, color vision and the ability to adjust focus.Physical demands associated with this position include extensive walking (including stairs) throughout offices and between buildings. May require use of public transportation, personal or Government vehicle to drive to local and/or remote office locations.Additional RequirementsOther duties as assignedESM provides equal employment opportunity to all individuals regardless of race, color, creed, religion, gender, age, sexual orientation, national origin or ancestry, disability, genetic information, veteran status, gender identification or any other characteristic protected by state, federal or local law.