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 an Senior System Administrator to support an enterprise-level program within a federal environment. Job Description and Responsibilities Ensures the reliable operation and performance of software systems, network connections, servers, and applications across multiple locations. Plans, installs, configures, maintains, upgrades, and optimizes network and application environments while troubleshooting end-user software and connectivity issues. Provides user training, local and remote technical support, and recommendations for technology improvements aligned with business needs. Applies advanced knowledge of application networking, load balancing, and fault-tolerant architectures, and performs vulnerability management to maintain secure and resilient systems. Required Knowledge, Skills and Abilities (KSA) Knowledge of software systems, network infrastructure, servers, applications, and communication technologies across distributed environments. Skilled in installing, configuring, maintaining, upgrading, and troubleshooting a variety of hardware and software solutions. Proficient in diagnosing and resolving end-user software, application, and network connectivity issues in local and remote environments. Ability to support complex operational systems across multiple locations, including system maintenance, new installations, upgrades, and remote support. Knowledge of application networking, load balancing, fault-tolerant architectures, and vulnerability management practices. Ability to analyze technical requirements, recommend technology solutions aligned with business needs, provide end-user training, and resolve complex technical issues. Desired KSA Be a positive, self-motivated, and proactive person with the ability to adapt to change and tolerate stressful situations Candidate must communicate effectively with team members, team lead, management, and government customers Must have the ability and desire to research and develop creative solutions to unique problems with minimal supervision Minimum Training, Education, and Certifications Seven (7) years of progressive experience in Information Processing, including six (6) years working across specialized information technology disciplines involving a range of hardware and software solutions At least four (4) years of hands-on experience installing, configuring, maintaining, and troubleshooting various software applications and systems Computing Environment certification SAP certification 8570 Baseline IAT Level I Minimum Clearance Secret Physical Requirements Required 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 Requirements Other duties as assigned ESM 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.