RHEL Network Management Systems (NMS) Engineer (w/ active Secret)

Critical Solutions•Norfolk, VA

5d•$87,000 - $112,000•Onsite

About The Position

The RHEL Network Management Systems (NMS) Engineer designs, deploys, administers, and supports an enterprise network management infrastructure. The position combines Red Hat Enterprise Linux (RHEL) 8 back-end operations with application-level management of NMS tool suites, ensuring the platform supporting network monitoring, fault detection, and performance management remains highly available, optimized, and security compliant. The engineer provisions, configures, maintains, and tunes RHEL 8 servers across physical, virtual, and air-gapped environments; automates operational tasks; applies security updates and STIG requirements; and manages storage for NMS databases and syslog. The role also deploys and supports enterprise NMS applications, integrates monitoring engines with CMDB and ITSM platforms, configures polling and telemetry, and develops alerting logic. This is a full-time, 100% onsite position in Norfolk, Virginia. Candidates must possess an active DoD Secret clearance, be U.S. citizens, and successfully complete the required federal background investigation and fingerprinting. The stated salary range is $87,000–$112,000 per year.

Requirements

Bachelor's degree in computer science, IT, Network Engineering, or an equivalent technical field.
Hands-on experience administering RHEL 8 environments.
Advanced knowledge of systemd, rsyslog, journald, and native RHEL troubleshooting utilities such as top, iotop, netstat, and tcpdump.
Deep knowledge of SNMP v3, Syslog, SSH, ICMP, NetFlow, and TACACS+/RADIUS.
Proficiency in Ansible and scripting languages such as Python and Bash.
Must possess an active DoD Secret clearance.
U.S. citizenship is required.
Must successfully complete the required federal agency background investigation and fingerprinting.

Nice To Haves

RHCSA or RHCE certification.

Responsibilities

Provision, configure, and maintain RHEL 8 servers hosting core NMS applications in physical, virtual, and air-gapped environments.
Tune Linux kernel parameters, memory allocation, and storage subsystems to support high-volume telemetry and configuration data intake without data loss.
Use Red Hat Satellite or custom repositories to manage packages and apply security errata and operating system updates.
Write and maintain Ansible playbooks and scripts to automate server provisioning, user management, and recurring NMS operational tasks.
Enforce Linux security policies, access rules, and STIG compliance.
Configure and expand LVM structures for high-write NMS databases and syslog partition scaling.
Deploy, upgrade, and troubleshoot enterprise NMS applications, including Open Text NNMi, Open Text Network Automation, Cisco Catalyst Center, Arista Cloud Vision, and Aruba Airwave.
Integrate NMS engines with CMDB asset databases and ITSM platforms such as ServiceNow using APIs.
Configure polling intervals, SNMP MIBs and traps, and NetFlow collectors.
Develop alerting logic, thresholds, and notification profiles to reduce alert fatigue while surfacing critical outages.
Support fault and performance monitoring, configuration and change control, and traffic analytics and network capacity planning.