Senior Monitoring Analyst
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Job Description
Analista NOC sênior monitorando redes críticas de telecomunicações para provedores e operadoras. Liderando incidentes, troubleshooting e evolução de ambientes Zabbix e Grafana.
Responsibilities:
- Monitor availability, performance and capacity of assets, links and critical services
- Lead analysis of alarms, events, metrics and indicators in high-impact or complex incidents
- Perform diagnostics and technical escalations, identifying causes, impacts, priorities and containment actions
- Execute advanced troubleshooting of connectivity, infrastructure, collection and monitoring services
- Design and maintain hosts, templates, items, preprocessing, triggers, macros, discovery rules (LLD), actions and event correlation in Zabbix
- Create and evolve dashboards, variables, datasources, transformations and alerts in Grafana
- Investigate collection failures via SNMP, ICMP, agents, Syslog, APIs, proxies and other integrations
- Define and review thresholds, dependencies, severities and suppression rules to increase alarm accuracy
- Analyze capacity and availability trends, anticipating risks, saturation and degradations
- Conduct root cause analyses and propose corrective and preventive actions
- Ensure logging, escalations and technical communications according to defined SLAs and workflows
- Mentor analysts, perform technical reviews and share knowledge
- Define standards, document solutions and contribute to the evolution of monitoring and NOC operations
Requirements:
- Advanced experience with Zabbix in production environments
- Strong knowledge of distributed architecture, proxies, templates, items, preprocessing, LLD (low-level discovery), triggers, dependencies, macros, actions and event correlation
- Advanced experience with Grafana, including datasources, variables, transformations, alerts and dashboards
- Knowledge of SNMPv2c/v3, ICMP, agents, Syslog, APIs and webhooks
- Solid understanding of TCP/IP, addressing, DNS, VLANs, switching, routing, latency and packet loss
- Ability to interpret metrics, establish baselines and correlate events and trends
- Proficiency with tools such as ping, traceroute, MTR, dig, curl and tcpdump
- Linux knowledge for analyzing services, logs, processes, resources and integrations
- Experience with incident and problem management, root cause analysis, escalation, SLAs and operating at scale
- Strong background in monitoring, infrastructure or NOC operations, working on critical incidents and high-availability environments
- Hands-on mastery of Zabbix and Grafana, including configuration, troubleshooting and evolution of production environments
Benefits:
- Continuous development
- Technical support
- Incentives for training and certifications relevant to the role
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