Network Performance Engineer | Netscout

Network Performance EngineerSeeking an experienced Network Performance Engineer with deep expertise in Netscout technologies to join its Denver-based infrastructure team. This role is critical to maintaining the health and performance of the client's enterprise network, supporting day-to-day infrastructure operations, and designing and implementing advanced dashboards that provide real-time visibility into network performance. The ideal candidate brings hands-on Netscout experience, a strong foundation in network engineering, and a knack for translating data into actionable visual insights.Network Infrastructure SupportMonitor, support, and troubleshoot the client's enterprise network infrastructure using Netscout nGeniusONE and InfiniStream platformsServe as a subject matter expert (SME) for Netscout tools, providing Tier 2/3 support for network performance incidentsIdentify and resolve network anomalies, packet loss, latency, and application performance degradationCollaborate with NOC, network engineering, and applications teams to correlate performance data and drive root-cause analysisMaintain and optimize Netscout probe and InfiniStream appliance deployments across key network segmentsSupport change management activities, ensuring network changes are validated with pre/post performance comparisonsDashboard Design & ImplementationDesign, build, and maintain real-time performance dashboards within nGeniusONE and other visualization platforms (e.g., Grafana, Splunk, or similar)Translate network KPIs and SLA metrics into intuitive, executive-ready dashboards for IT leadership and operations teamsDevelop custom views, reports, and alerts that enable proactive identification of performance trends and capacity issuesWork closely with stakeholders to gather requirements and iterate dashboard designs based on operational feedbackDocument dashboard standards, data sources, and refresh processes for ongoing maintainabilityGeneral Engineering ResponsibilitiesParticipate in capacity planning and performance baselining effortsContribute to network architecture discussions, providing performance data to support infrastructure investment decisionsAuthor and maintain runbooks, SOPs, and technical documentationSupport on-call rotation and participate in major incident response as neededRequired Qualifications3+ years of hands-on experience with Netscout platforms (nGeniusONE, InfiniStream, nGenius Pulse, or ASI)Strong working knowledge of network protocols: TCP/IP, BGP, OSPF, MPLS, QoS, VLANsExperience with packet capture analysis and deep packet inspection (DPI) toolsDemonstrated ability to design and implement network performance dashboardsProficiency troubleshooting Layer 2–7 network issues in large enterprise or service provider environmentsExperience with SNMP, NetFlow/IPFIX, and syslog integration for monitoring and alertingStrong analytical and communication skills; ability to present technical findings to non-technical audiencesBachelor's degree in Computer Science, Information Technology, or equivalent work experiencePreferred QualificationsExperience in a cable, telecom, or large ISP/MSO environmentFamiliarity with additional monitoring tools: SolarWinds, ThousandEyes, Grafana, or AppDynamicsScripting/automation skills (Python, Ansible, or Bash) to enhance monitoring workflowsCisco CCNP, CCIE, or equivalent industry certificationExperience with SD-WAN, cloud networking (AWS/Azure), or hybrid network environmentsKnowledge of ITSM platforms (ServiceNow) and ITIL processesWork ArrangementThis is a hybrid position based in Denver, Colorado. Candidates are expected to be onsite at the client's Denver offices 3–4 days per week. Remote work is permitted on remaining days. Candidates must be local to the Denver metro area or willing to relocate prior to start date.