Monitoring Engineer

Unisys•USA Remote, CT

About The Position

Unisys is seeking a motivated Monitoring Engineer with more than 3 years of experience, including more than 2 years administering Nagios XI. The role involves independently maintaining and improving monitoring coverage in a mixed Windows/Linux environment, with minimal guidance. The engineer will maintain the Nagios XI platform, onboard infrastructure into monitoring, build and tune checks and alerts, optimize platform performance, document monitoring processes, and work with IT, network, systems, and application teams. The position also involves evaluating plugins, integrations, and automation opportunities to improve the platform.

Requirements

Bachelor's degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.
More than 3 years of systems or network administration experience, including more than 2 years administering Nagios XI (or Nagios Core with strong XI familiarity) in a production environment.
Scripting ability across platforms: Bash and/or Python for Linux checks, and PowerShell for Windows checks via NCPA.
Working knowledge of SNMP, NRPE/NCPA, syslog, and common network/server monitoring protocols.
Understanding of networking fundamentals, including TCP/IP, ports, and firewalls, as they relate to monitoring connectivity.
Self-motivated and able to work independently with minimal oversight.
Strong communication skills and ability to explain technical monitoring data to other teams and leadership.
Applicant should be eligible for any required U.S. Government authorizations if the role requires access to export-controlled commodities and technology.

Nice To Haves

Experience with configuration management tools such as Ansible or SCCM for automating monitoring deployment.
Experience integrating Nagios with a ticketing system such as ServiceNow.

Responsibilities

Maintain and administer Nagios XI, including upgrades, patches, plugin updates, backups, and general platform health.
Onboard new devices, servers, and services into monitoring as infrastructure grows, ensuring there are no coverage gaps.
Design, build, and maintain custom checks and monitoring scripts using NRPE, NCPA, SNMP, and custom plugins across Windows and Linux systems.
Tune alerting and thresholds to reduce false positives while reliably detecting real issues.
Monitor and optimize platform performance, including capacity, check latency, and database health.
Document configurations, runbooks, and processes so monitoring logic remains transparent and maintainable.
Partner with IT, network, systems, and application teams to identify monitoring gaps and translate business-critical services into checks.
Evaluate new plugins, integrations, and automation opportunities to continuously improve the platform.