Applications Systems Analyst – Senior

• Bachelor's degree in Information Technology, Computer Science or a relevant technical discipline and 5 years of relevant experience; Additional experience, education and training may be considered in lieu of degree 
• Active Secret with SSBI or Top-Secret security clearance 
• Current DoD-8570 IAT Level 2 or higher certification (i.e., CompTIA Security+/CE, CASP or CISSP) 
• Experience installing, managing and maintaining RHEL 7 Linux servers in a production environment 
• Experience troubleshooting and managing virtualized infrastructure in a VMware ESXi environment 
• Experience with deploying and managing infrastructure and software applications to the AWS cloud 
• Experience applying DevOps concepts and tools to automate repetitive tasks and ensure baseline consistency across multiple environments 
• Experience deploying, managing, monitoring and maintaining a variety of complex software products across multiple environments, including WildFly/JBoss, MongoDB, Apache Cassandra, HAProxy, etc. 
• Experience with the deployment of McAfee HBSS tools in a Linux environment 
• Experience with scripting in Bash and experience in other languages such as Perl or Python 
• Thorough knowledge of TCP/IP networking 
• Application and configuration of security settings and other IA best practices, such as those as required by DISA STIGs and SRGs 
• Experience supporting, installing and configuring enclave Ethernet switches, storage area networks (SAN), and network attached storage (NAS) 

Responsibilities:  

• Work independently to ensure the reliability, availability and security of the ENET solution by proactively monitoring the system, troubleshooting, and resolving issues to ensure high availability and continuity of operations 
• Be able to work in a fast-paced environment and must be able to work independently 
• Maintain configuration management and baseline control of development, test, pre-production and production environments 
• Conduct regular security scans, analyze results and implement resolutions including testing of new hardware and software and ensure compliance with DISA STIGs 
• Operate and maintain the ENET solution, including patching of operating systems and COTS/FOSS/GOTS 
• Perform and test regular backups 
• Monitor and tune system and network performance, including RHEL and VMWare systems, for optimal system availability 
• Configure, manage and maintain components of the SDN solution (application servers, load balancers, databases, operating systems, etc.) 
• Deploy ENET systems in the Lab environment, integrate with other systems, perform testing and validation 
• Manage, track and maintain configuration items including licenses, SSL certificates and the hardware/software baseline 
• Support ENET baseline deployments, upgrades and updates to the production environment including the installation and configuration of new software and hardware 
• Lead planning and migration of ENET infrastructure and applications from the Data Center environment to the AWS cloud. 
• Create, maintain and implement detailed documentation and maintain standard operating procedures. 
• Perform trend analysis on component failures, network/node outages, and system performance parameters 
• Interact with software and hardware vendors to evaluate vendor products and make recommendations to purchase hardware and software 
• Work with network engineers and developers to troubleshoot environment issues as necessary 
• Escalate support issues to vendors as necessary and coordinate resolution 
• Manage access including creation and management of user and service accounts 
• Provide support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations 

Preferred Qualifications  

• Red Hat Certified System Administrator (RHCSA)/Linux Professional Institute Certification (LPIC) 
• Experience managing HPE integrated BladeSystem enclosures, including Onboard Administrator, iLO and interconnect modules 
• Experience managing and using Ansible automation tools 
• Knowledge of Git and the Git version control model 
• Understanding of PostgreSQL, including monitoring, managing and maintaining replicated databases 
• Experience supporting, installing and configuring enclave Fiber/Ethernet switches, HPE storage area networks (SAN)/ network attached storage (NAS) 
• Experience with a ticketing system such as BMC Remedy and/or Atlassian JIRA 
• Experience administering and configuring Windows Server 2012 R2 or higher 

Clearance/Citizenship:  

• Secret 
• Must be US Citizen