System Administrator

Title:  System Administrator

Location: Central Virginia / Charlottesville, VA metro area (Culpeper, VA and Madison, VA)

ARiA applies broad interdisciplinary expertise in acoustics, machine learning, modeling & simulation, and signal processing toward innovative science and engineering research and development for a diverse set of government and corporate clients. Partnering with government, industry, and academia, ARiA solves critical challenges.

To enable effective and efficient transition of applied research to advanced development of products and systems, ARiA is structured to bring together top-quality research scientists with development and software engineers in an environment in which research and development mutually benefit from joint leveraging of in-house expertise.

ARiA is a small business where you can make a big difference. Our employees, including those at entry-level, are working together with the CIO of the Air Force to use artificial intelligence and machine learning  to change the way the government acquires technology and working with top Navy leaders to use video games and simulation to change the way sailors are trained to use sonar.

ARiA: Real Research. Real World.TM

For more information, visit

ARiA is an Equal Opportunity Employer.

Position Description:

As System Administrator you will work in close coordination with the growing team of ARiA scientists, engineers, and security personnel across our offices (Central Virginia / Charlottesville, VA metro area; Washington, DC metro area; and Seattle, WA) to design, develop, deploy, administer, and secure local-server and cloud-based information systems across ARiA. This position is an opportunity to join a rapidly growing firm and help design and direct the growth of our IT infrastructure while developing cutting-edge technologies that address crucial needs. 


As an integral member of ARiA project teams and primary administrator for ARiA IT systems, collaboratively work to design, develop, and deploy IT systems and infrastructure

Assist in or be in charge of configuring, administering, and monitoring local and cloud-based information systems, including high-performance computing systems, servers, and user workstations, in accordance with required security guidelines. ARiA IT systems are almost entirely Linux, with some limited use of Windows (for some desktop systems) and macOS (for some desktop systems and server-side to support interface-design tools).

Working collaboratively with the Information Systems Security Manager (ISSM) and software team, perform or coordinate all activities necessary to ensure the safety of IT assets and to protect systems from intentional or inadvertent access or destruction, serving as the Information Systems Security Officer (ISSO) for ARiA offices located in the Washington, DC and Charlottesville, VA metropolitan areas.

Duties will include:

  • hardware setup and management
  • network management
  • managing LDAP including creation, deletion, account configuration, and integration with external services
  • managing DNS through IaC solutions
  • updating baremetal and virtual machines on a schedule as defined by NIST 800-53A and 800-171
  • maintaining and testing backup solutions for critical infrastructure components
  • developing a central configuration-management solution
  • continuing to develop and implement a central monitoring solution via SNMP
  • maintaining firewall and VPN configurations
  • conducting and reporting vulnerability and configuration scans
  • maintaining internal SSL/TLS certificates
  • supporting development tools including continuous-integration servers, artifact repositories, and in-house databases


Applicants must be U.S. citizens and must meet eligibility requirements for access to sensitive information. Those selected for employment will be subject to a government security investigation.

Bachelor’s degree in a relevant field or relevant/specialized training and experience

Two or more years of direct, hands-on experience working in a similar role

Fluency with Linux (RHEL 7.X/CentOS and Ubuntu) including scripting in Bash, Perl, or Python

Proficiency with Windows and macOS (sufficient to support their limited use at ARiA)

A well-rounded working knowledge of networking (e.g., LAN, WAN, Routing, Firewalls, and VPN) and IT system architecture fundamentals

Exceptional ability and desire to acquire new knowledge and skills to solve challenges

Ability to work independently and collaboratively

Ability to support multiple projects in a fast-paced professional office environment

Ability to communicate technical solutions to project management and the development team

Superior oral and written communications skills

Desirable Skills, Qualifications, and Experience:

Optimal candidates will have experience with many or all of the following practices and tools

Containerization: Docker / Docker Swarm / Kubernetes

Cloud platforms: AWS

Configuration Management: Ansible, Nix

Networking: LDAP (OpenLDAP), DNS, DHCP

CI/CD tools: GitLab

System monitoring and analysis tools: Grafana

Documentation creation and maintenance

Agile and DevOps methodologies, continuous integration and deployment, operations management

Server and HPC (GPGPU) setup and configuration

Network file systems: Ceph, GlusterFS

Prior Information Systems Security Officer (ISSO) experience

Network security: firewall technologies (Fortinet or others)

System security: SCAP Workbench/OpenSCAP, Experience with eMASS and/or OBMS for Assessment & Authorization Risk Management Framework (RMF) processes

Virtualization/hypervisor technologies: KVM, Xen, ESXi, QEMU

Linux kernel configuration and building

To apply submit resume/CV and cover letter with salary requirements to