Senior Systems Engineer

About the role

Transform technology into opportunity as a Senior Enterprise Performance Management Systems (EMS) Engineer with GDIT. Support mission-critical enterprise IT systems and contribute to the modernization of agency operations.

Responsibilities

• Administer, maintain, and optimize NetScout nGeniusONE, nGeniusPULSE, InfiniStream, and associated performance monitoring infrastructure.
• Provide day-to-day administration of Red Hat-based Linux distributions (CentOS, RHEL, Oracle Linux).
• Troubleshoot system-level issues, analyze OS logs, and monitor disk space, CPU, and memory utilization.
• Utilize Bash/Shell scripting to automate routine administrative tasks and system backups.
• Plan and execute server migrations and operating system upgrades.
• Aid in transitioning legacy enterprise systems from CentOS 7 to Oracle Linux 9 while ensuring minimal downtime.
• Perform pre-migration compatibility assessments on existing configurations, libraries, and application dependencies.
• Validate post-migration system integrity, user permissions, and service functionalities.
• Support deployment and expansion of enterprise monitoring capabilities across multiple network enclaves.
• Configure service monitors, service dashboards, alerting thresholds, and reporting capabilities.
• Ensure platform availability, data integrity, and monitor coverage of critical enterprise services.
• Develop operational dashboards and service health views supporting enterprise network operations.
• Establish and maintain Key Performance Indicators (KPIs), service level metrics, and performance baselines.
• Analyze network traffic patterns, latency, packet loss, retransmissions, application response times, and user experience metrics.
• Identify trends and proactively recommend improvements to increase service reliability and operational effectiveness.
• Produce daily, weekly, and monthly service performance reports for Government leadership.
• Translate complex technical findings into concise operational impacts, risks, and recommendations.
• Participate in customer briefings and performance review meetings.
• Owning and continuously improving recurring operational performance briefings, including dashboard interpretation, trend narratives, and mission impact summaries.
• Utilize NetScout packet level and service level data to investigate performance degradations and service disruptions.
• Collaborate with Network Operations, Systems Administration, Cybersecurity, and Service Desk teams during incident response activities.
• Provide data-driven recommendations for problem resolution and service restoration.
• Correlate NetScout findings with ServiceNow incidents, problems, and changes to improve event context, escalation quality, and service restoration outcomes.

Qualifications

• Education: Bachelor’s Degree. Additional 4 years of experience may be substituted in lieu of degree.
• Certification(s): Active Security+ CE (or higher) at time of hire. Networking, observability, monitoring, or service management certifications such as CCNA, CCNP, JNCIA, JNCIS, ITIL Foundation, Splunk, Dynatrace, ThousandEyes, SolarWinds, or equivalent industry certification.
• Experience: 8+ years of experience supporting enterprise monitoring, network operations, observability platforms, performance engineering, or enterprise network environments.
• Technical Requirements: Experience administering NetScout nGeniusONE and InfiniStream solutions is highly desired but not required. Experience supporting enterprise observability, application performance monitoring, or network monitoring platforms will be considered. Strong background in network performance monitoring, enterprise observability, service assurance, or operational analytics. Enterprise with Monitoring & Observability Platforms, Networking Technologies, Performance Analysis, Reporting & Visualization, and Automation & Integration. Experience with Enterprise Monitoring & Observability Platforms such as NetScout nGeniusONE, NetScout InfiniStream, InfoVista, Splunk, ThousandEyes, Dynatrace, AppDynamics, or SolarWinds. Performance Analysis experience utilizing Network latency analysis, Application performance monitoring, Traffic flow analysis, Capacity planning, Service performance baselining, and Trend analysis. Experience with Reporting & Visualization tools such as Power BI, Tableau, Excel Analytics.

Benefits

Comprehensive benefits and wellness packages, 401(k) with company match, and competitive pay and paid time off. Full flex work weeks, paid parental, military, bereavement, and jury duty leave. Short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness, and business travel and accident insurance are provided or available.

Pay

$127,500 - $172,500

Schedule

40 hours per week