System Administrator

4 weeks ago

Chantilly, Virginia, United States Hoplite Solutions LLC Full time

Hoplite Solutions LLC is seeking a highly skilled System Administrator to join our team. The ideal candidate will have extensive experience in the installation, configuration, and maintenance of both Windows- and Linux-based architectures.

The successful candidate will be responsible for improving the stability and performance of our platform, maintaining and improving the security posture of our domain, and troubleshooting issues that arise.

This individual will be accountable for Windows, Linux, and application systems that support our infrastructure. Responsibilities on these systems include SA engineering, operations and maintenance, and research and development to ensure continual operation.

The 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.

Primary Responsibilities:

  • Provide daily operational support for Linux and Microsoft Windows operating systems and applications
  • Support 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 activities
  • Develop and maintain standards and procedures for applications across a complex computing infrastructure
  • Develop and maintain comprehensive documentation
  • Monitor application and operating system performance; analyze, document and remediate incidents
  • Develop and oversee implementation of testing strategies and document the results
  • Leverage scripting and system automation tools
  • Maintain current knowledge of relevant technologies
  • Research and recommend hardware and software, coordinate installation, and provide backup recovery
  • Interact with users and evaluate vendor products
  • Review incidents to understand the root causes and ensure implementation of proper fixes
  • Collaborate with system administrators, engineers, and the client to ensure proper integration of applications
  • Works with tech team to complete required maintenance and patching, DTOs, File Transfers
  • Provides security reports (e.g. Log files, Scans, etc.)
  • Coordinates waivers and approvals

Basic Qualifications:

  • Active TS/SCI with Polygraph
  • Extensive experience with Redhat and/or Centos
  • Demonstrated experience with VMWare ESXi infrastructure 6.x + vCenter server, host clustering with HA, DRS, replication
  • Demonstrated experience in server builds using automated mechanism
  • Demonstrated experience with Ansible and/or Puppet
  • Demonstrated experience with Ansible playbooks for virtual and physical instance provisioning, configuration management and patching and software development
  • Demonstrated experience with building, upgrading and maintaining applications and services in an AWS account
  • Demonstrated experience with code maintenance using Git, Gitlab, and/or Github
  • Demonstrated experience with Atlassian Jira and Confluence
  • Demonstrated experience with managing Elasticsearch on CentOS
  • Demonstrated experience collaborating with other systems administrators, storage administrators, application developers, and network engineers to solve complex problems

Desired Qualifications:

  • Certified Linux System Administrator
  • Knowledge of network engineering fundamentals and network design
  • Demonstrated experience with Microsoft Window Server versions 2008, 2016
  • Demonstrated experience with SCCM, WDS, MS SQL server, Powershell, batch scripting
  • Demonstrated experience working with syslog applications such as Splunk
  • Demonstrated experience with NetApp NAS systems a plus
  • Demonstrated experience with Hadoop infrastructure and applications (HDFS, Hue, Impala, Oozie, Solr, Spark, Yarn, Zookeeper) a plus
  • Demonstrated experience with Cisco Nexus switches and Cisco Firepower Security Appliances a plus
  • AWS Certification a plus
  • ITIL Foundations Certification a plus

Hoplite Solutions LLC offers very competitive salaries and an excellent benefits package, to include a 7% employer 401k contribution, fully paid healthcare for our employees, outstanding training benefits, company funded life insurance and short-term disability insurance, and many more.

Salary at Hoplite Solutions LLC is determined by various factors, including but not limited to location, the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements.

The projected compensation range for this position is $175,000 to $200,000 (annualized USD).

The estimate displayed represents the typical salary range for this position and is just one component of the company total compensation package for employees.

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