Senior System Engineer

Worker Type Regular. AV is seeking a Senior Systems Engineer in a highly technical, hands‑on role focused on integrating, automating, and sustaining high-performance computing (HPC) systems in a Linux environment. Unlike a traditional systems engineering position, this role requires deep practical experience with Linux administration, software integration, infrastructure automation, containerized environments, Dev Sec Ops  practices, and Public Key Infrastructure (PKI). The successful candidate will work across software, infrastructure, security, and operations teams to ensure that HPC platforms are highly available, scalable, secure, and maintainable.

• Lead and perform software integration activities across Linux-based HPC environments.
• Install, configure, integrate, and sustain COTS, GOTS, and FOSS software, libraries, and packages.
• Administer Linux systems using the command line, including service management, configuration, troubleshooting, and routine sustainment operations.
• Support the provisioning, configuration, and maintenance of compute, storage, and network infrastructure.
• Develop and maintain Bash and Python scripts to automate system administration, deployment, monitoring, and operational tasks.
• Design, implement, and maintain automated infrastructure solutions that improve system availability, scalability, repeatability, and operational efficiency.
• Apply Infrastructure as Code (IaC) and configuration-management practices using tools such as Ansible.
• Support CI/CD pipelines and Dev Sec Ops  processes using tools such as Git Lab CI and Git.
• Deploy and maintain containerized applications and services using Docker and Kubernetes.
• Support stream and batch Big Data processing and analytics frameworks.
• Implement and maintain secret‑management solutions, including Hashi Corp Vault or similar products.
• Manage PKI infrastructure and certificate life cycles, including certificate requests, installation, renewal, revocation, and troubleshooting.
• Support PKI requirements involving network‑protected entities (NPEs), wildcard certificates, and fully qualified domain names (FQDNs).
• Develop and maintain system monitoring and observability solutions to support operational awareness and rapid fault isolation.
• Collaborate with software developers, cybersecurity professionals, infrastructure engineers, and program stakeholders to resolve technical issues and improve system performance.
• Document system architectures, configurations, procedures, and operational processes.
• Plan and lead systems engineering activities for projects and contracts of similar scope, type, and complexity.
• Provide technical leadership, mentor other engineers, and contribute to engineering standards and best practices.

• Active TS/SCI clearance with polygraph.
• Twenty (20) years of experience as a Systems Engineer supporting programs and contracts of similar scope, type, and complexity.
• Demonstrated experience planning and leading Systems Engineering efforts.
• Bachelor’s degree from an accredited college or university in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related discipline.
• Five (5) years of additional Systems Engineering experience may be substituted for the bachelor’s degree.
• Proficiency using the Linux command-line interface.
• Demonstrated experience developing scripts using Bash and/or Python.
• Experience administering Linux systems, including:
  Software integration Service management Configuration management System provisioning Storage and networking support Routine sustainment and troubleshooting operations
• Experience installing, configuring, integrating, and supporting COTS, GOTS, and FOSS…