Senior Nagios Engineer manages and enhances Nagios systems to monitor enterprise infrastructure, networks, and applications. This role ensures accurate alerting, efficient system performance, and ongoing platform reliability.
Key Responsibilities
Install, configure, and maintain Nagios Core, Nagios XI monitoring solutions
Upgrade Nagios and related plugins for system and network monitoring.
Good hands on experience in Linix/ Unix servers.
Develop and refine monitoring scripts and templates for consistent coverage.
Monitor and troubleshoot: Linux, Windows and applications
Configure and manage: Hosts, services, host groups, and service groups, Active and passive checks, Alerts, escalations, and notifications
Integrate Nagios XI with: SNMP, NRPE, NCPA, NSClient++, Ticketing tools (ServiceNow, Jira, etc.), Email, SMS, and collaboration tools
Perform root cause analysis (RCA) and provide incident reports
Optimize monitoring performance and reduce alert noise (alert fatigue)
Build dashboards, reports, and capacity planning metrics
Collaborate with infrastructure, application, and security teams
Create and maintain monitoring documentation and SOPs
Support audits, compliance requirements, and best operational practices
Analyze performance metrics to identify trends and optimization opportunities.
Creating dashboards and reports.
Maintain SOX-compliant documentation for monitoring configurations and changes.
Collaborate with DC Ops, NOC, and infrastructure teams to resolve system issues.
Document monitoring standards and ensure consistent best practices.
Qualifications
Bachelor’s degree in IT or equivalent experience.
5 - 8 years of experience managing Nagios XI in enterprise environments.
Strong Linux and scripting knowledge (Bash, Python, Perl).
Experience with SNMP, network protocols, and performance metrics.
Strong analytical and problem-solving abilities.
Experience with agent-based and agentless monitoring
Familiarity with performance monitoring and capacity management
Knowledge of log analysis and alert correlation
Tools & Technologies (Nice to Have)
Other monitoring tools: SCOM, SolarWinds, Prometheus, Grafana, AppDynamics
Cloud monitoring (AWS, Azure, GCP)
ITSM tools (ServiceNow)
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From live job posts on CoreHRx, updated 21 Oct 2026. Skill figures count posts that list their skills; salary figures only posts that show a salary.
