Raul Perez Email & Phone Number

Plano, Texas, Us

• Led and expanded the Managed SIEM team, serving as the highest technical authority on Microsoft Sentinel, Splunk, and Sumo Logic platforms.• Developed and executed strategic initiatives to enhance the Managed Services offering, including advanced use case development, customer education, and proactive SIEM health checks.• Built and maintained relationships with clients as a trusted advisor, providing tailored solutions and recommendations to meet evolving security needs.• Architected and managed comprehensive SIEM infrastructures, including Splunk environments (Indexer, Deployment Server, Universal Forwarder, Heavy Forwarder, and Search Head), ensuring seamless integration and optimal performance.• Designed and deployed Microsoft Sentinel environments, setting up Syslog servers, configuring Rsyslog, configuring DCRs and transformation rules and creating custom Logic Apps for automated incident handling and response.• Collaborated closely with clients to deliver tailored solutions, providing guidance on network policies, data collection, and threat detection enhancements.

Plano, Texas, Us

• Managed Customer SIEM Environments. (Microsoft Sentinel, Splunk, Sumo Logic)• Led and trained new team members, improving team performance and knowledge sharing.• Acted as a team lead for SIEM products, providing constant assistance and guidance to colleagues.• Create custom deliverables for clients such as Custom Detections (KQL), Workbooks, Reports and Custom Log Sources. • Microsoft Sentinel Subject Matter Expert• Continuously planning and looking for opportunities on how to improve Managed Services offering. • Collaborate with members outside of our department to assist on anything related with SIEM.• Create automation on Microsoft Sentinel with Playbooks.

Plano, Texas, Us

• Implement SIEM products such as Microsoft Sentinel, Splunk and Devo to Critical Start Platform.• Assist customers with network, servers and SIEM troubleshooting. • Make recommendations to reduce amounts of alerts.• Create and update documentation for our team. • Assist customer onboard new log sources.• Deploy Syslog Servers for SIEM Products. • Implement Cyber Security Best Practices on customer SIEM products. CRITICALSTART is leading the way in Managed Detection and Response (MDR) services. Our Trusted Behavior Registry reviews every alert to determine if it was generated by known-good behavior versus unknown behaviors that need to be investigated by our analysts. This allows us to resolve every alert and stop accepting risk - leveraging our transparent platform and native iOS and Android mobile apps. Visit criticalstart.com for more information.

Allen, Texas, Us

• Troubleshoot Networks and servers.• Provide Tier 3 Support.• Monitor and Analyze network traffic or alerts.• Configure and deploy Firewalls and Switches.• Implement Azure Sentinel (SIEM) to clients. • Automate alerts to send an email to the helpdesk to create tickets. • Elaborate Security Risk Assessments for clients.• Configure and deploy VMs • Perform Penetration Testing on clients.

Allen, Texas, Us

• Provide Hardware, software, and network solutions. • Coordinate and manage relationships with vendors.• Deployment of line Business Applications.• Provide Support to Mac and Linux Users. • Visit clients on-site to troubleshoot outstanding issues. • Provide Microsoft Training to clients.• Investigate attacks against customer's computers.