Mark Hermosillo

About Mark Hermosillo

Versatile technical specialist extensively trained in mission-critical systems, seeking a position with a forward-thinking company that offers opportunities for professional and personal growth.

Experience

1. Configuration Monitoring Splunk System Administrator

   Vesta

   Mar 2020 — Present · Portland, OR, US

   Implemented Splunk monitoring and alerting ecosystem for payment processing and fraud mitigation company • Created dashboards and alerts for all departments for many scenarios to troubleshoot and monitor system health and deep dive issues or anomalies from application logs, network logs, http logs, database entries, files, container logs, and Event Hub logs • Created system of high availability resiliency to move network traffic using load balancing or routing traffic to different acquirers based on anomaly detection • Administered classes and created documentation to keep teams updated with Splunk advances, new data availability, and effective searching strategies • Implemented Splunk Enterprise Security, Splunk ITSM, VictorOps/Splunk-OnCall integration with messaging tools, and Splunk APM/Observability Suite for deep dives into application performance • Performed migration of entirety of Splunk Enterprise system from on premises to Cloud hosted • Utilized big data and machine learning in predictive analytics to create system of preemptive alerting • Created synthetic transactions to monitor customer experience

Skills

• C#
• Winscp
• Microsoft Exchange
• Microsoft Excel
• Powerpoint
• Splunk
• Windows Services
• Tcp/Ip
• Avaya
• Technical Support
• Troubleshooting
• Active Directory
• Unix
• Windows Server
• Dns Management
• F5 Bigip
• Software Development
• Outlook
• Xml
• Sql
• Visio
• Linux
• Vmware
• High Availability
• Microsoft Sql Server
• Databases
• Java
• Servers
• Integration
• Solarwinds
• Tomcat