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Bespoketechinc

072 - Linux System Administrator

Bespoketechinc, Chantilly, Virginia, United States, 22021


MUST HAVE A POLY CLEARANCE TO APPLY

JOB DESCRIPTION

The Systems Administrator position will apply expertise in the installation, configuration, operations, and maintenance of both Windows- and Linux-based architectures. The Systems Administrator will focus on improving the stability and performance of the platform, maintaining and improving the security posture of the domain, continuous monitoring of system health, and troubleshooting issues that arise. This individual is accountable for Windows, Linux, and application systems that support the infrastructure. Responsibilities on these systems include SA engineering, operations and maintenance, and research and development to ensure continual operation. The individual must be proficient in building, documenting, and providing tier 3 engineering support.Linux System AdministratorLocation: ChantillyThe position requires deep technical knowledge of systems, networks, and application security as well as a solid understanding of enterprise-level security frameworks, policies, processes, and standards. The candidate must have strong analytical skills for troubleshooting complex issues, attention to detail, and the ability to multitask in a fast-paced environment. Key duties include maintaining operating systems, application support, integration, design, and assistance with additional duties as needed to support the team.KEY RESPONSIBILITIES

Provide daily operational support for Linux and Microsoft Windows operating systems and applicationsSupport virtual and physical infrastructure of servers running CentOS in a dev, test, and production configuration, and support an infrastructure of different applications comprising of end user applications, developer tools and infrastructure support applications.Develop and maintain environments running in Amazon Web Services (AWS).Maintain the integrity and security of systems by monitoring security feeds and dashboards in support of Continuous Monitoring activitiesDevelop and maintain standards and procedures for applications across a complex computing infrastructureDevelop and maintain comprehensive documentationMonitor application and operating system performance; analyze, document and remediate incidentsDevelop and oversee implementation of testing strategies and document the resultsLeverage scripting and system automation toolsMaintain current knowledge of relevant technologiesResearch and recommend hardware and software, coordinate installation, and provide backup recoveryInteract with users and evaluate vendor productsReview incidents to understand the root causes and ensure implementation of proper fixesCollaborate with system administrators, engineers, and the client to ensure proper integration of applicationsWork with tech team to complete required maintenance and patching, DTOs, File TransfersProvide security reports (e.g. Log files, Scans, etc.)Coordinate waivers and approvalsEDUCATION AND EXPERIENCE

Bachelor's Degree in Computer Science, Information Technology, or other related technical discipline, or the equivalent combination of education, technical certifications, training, and work experience.REQUIRED QUALIFICATIONS

Extensive experience with Redhat and/or CentosDemonstrated experience with VMWare ESXi infrastructure 6.x + vCenter server, host clustering with HA, DRS, replicationDemonstrated experience in server builds using automated mechanismDemonstrated experience with Ansible and/or PuppetDemonstrated experience with Ansible playbooks for virtual and physical instance provisioning, configuration management and patching and software developmentDemonstrated experience with building, upgrading and maintaining applications and services in an AWS accountDemonstrated experience with code maintenance using Git, Gitlab, and/or GithubDemonstrated experience with Atlassian Jira and ConfluenceDemonstrated experience with managing Elasticsearch on CentOSDemonstrated experience collaborating with other systems administrators, storage administrators, application developers, and network engineers to solve complex problemsDESIRED QUALIFICATIONS

Certified Linux System AdministratorKnowledge of network engineering fundamentals and network designDemonstrated experience with Microsoft Window Server versions 2008, 2016Demonstrated experience with SCCM, WDS, MS SQL server, Powershell, batch scriptingDemonstrated experience working with syslog applications such as SplunkDemonstrated experience with NetApp NAS systems a plusDemonstrated experience with Hadoop infrastructure and applications (HDFS, Hue, Impala, Oozie, Solr, Spark, Yarn, Zookeeper) a plusDemonstrated experience with Cisco Nexus switches and Cisco Firepower Security Appliances a plusAWS Certification a plusITIL Foundations Certification a plusCertifications relating to IT Security (CISSP, GIAC, Security+) a plus

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