Senior Systems Administrator en ManTech International

MANTECH seeks a motivated, career and customer-oriented Sr. Systems Administrator to join our team in Key West, FL. Responsibilities include but are not limited to:The Senior Systems Administrator leads the maintenance, configuration, and reliable operation of complex computer systems, network servers, and virtualization technologies, including those in critical or high-security environmentsThey possess advanced knowledge of operating systems, server hardware, virtualization platforms, network infrastructure, and security best practicesThey install, configure, and upgrade complex systems and software, ensuring optimal performance, security, and availabilityThey troubleshoot complex hardware and software errors, using advanced diagnostic tools and techniques to identify and resolve critical issuesThey develop and maintain comprehensive system documentation, including configuration guides, troubleshooting procedures, and Disaster Recovery PlansThey lead the implementation of automation processes to streamline IT operations and improve efficiencyThey mentor and provide guidance to mid-level Systems Administrators, fostering their professional development and technical expertiseThey also contribute to the planning and implementation of IT infrastructure projects, ensuring alignment with organizational needs and industry best practicesThe Senior Systems Administrator provides direction and mentorship to subordinate staff Minimum Qualifications:BA/BS in field necessary to assume Senior Systems Administrator or 4 additional years of experience in lieu of a degree.  9+ years of experience with 5+ years of relevant Systems Administrator experience.Proven track record of managing and maintaining complex IT infrastructure.Deep understanding of operating systems (e.g., Windows Server, Linux) and their administration.Expertise in server hardware, virtualization technologies (e.g., VMware, Hyper-V), and network infrastructure. Proficiency in scripting and automation tools (e.g., PowerShell, Bash).Knowledge of system security best practices and hardening techniques. Experience with troubleshooting hardware and software issues.Familiarity with IT Service Management (ITSM) principles and practices. Strong analytical and problem-solving skills to diagnose and resolve system-related issues. Ability to identify root causes and implement effective solutions.Experience in troubleshooting complex technical problems. DoD 8570.01-M IAT Level II certification within 6 months of commencing work on the Task Order.Desired Qualifications:Master’s degree in Computer Science, Information Technology, or a related field. Experience with cloud computing platforms (e.g., AWS, Azure, GCP).Knowledge of containerization technologies (e.g., Docker, Kubernetes).Familiarity with DevOps practices and tools. Experience with monitoring and performance tuning of systems.Relevant certifications in systems administration (e.g., Microsoft Certified Solutions Expert (MCSE), Red Hat Certified Systems Administrator (RHCSA), CompTIA Server+).Experience at a DoD Combatant Command (e.g., SOUTHCOM, NORTHCOM, CENTCOM, CYBERCOM, INDOPACOM, EUCOM, AFRICOM, STRATCOM, TRANSCOM, SOCOM, SPACECOM) or a component is desired. Clearance Requirements:Must have an active TS/SCI clearance. Physical Requirements:·Must be able to remain in a stationary position 50%·Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printerThe person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations. Solicitar ahora