William Freire De Souza E Silva Email & Phone Number

Federal District, Brazil

Brasília, Distrito Federal, Brasil

QRadar AdministrationArchitecture and deploymentConfiguration and tuningLog sources and eventsRules and offensesAsset managementLicense managementBackup managementTLS certificateUser managementApplication managementCreation of custom log sourcesData ingestion pipeline and protocols

Brasília, Distrito Federal, Brasil

Monitored, triaged, and responded to security incidents for SICOOB's central offices and cooperatives, reducing average response time and improving incident resolution rate.Administered SIEM systems by creating and tuning rules, defining reference maps and sets, and establishing filters and exceptions, which enhanced threat detection accuracy.Performed detailed process and file analysis while researching and developing playbooks, leading to improvement in incident response efficiency and standardization across teams.Implemented advanced property extraction techniques, resulting in a increase in data visibility and better correlation of security events.Developed and optimized incident response workflows, achieving reduction in downtime and ensuring compliance with regulatory requirements.

Brasília, Distrito Federal, Brasil

Monitored and triaged over 200 security incidents in real-time with SIEM tools like QRadar, reducing threat detection time by 35%.Created and revised playbooks and runbooks, which boosted operational efficiency and enhanced response accuracy.Developed custom queries to identify Indicators of Compromise (IOCs) and map suspicious IPs, URLs, and domains, leading to reduction in breaches.Analyzed and correlated logs from various data sources, improving detection of malicious activities and strengthening security posture.Collaborated with cross-functional teams for timely escalation and resolution of incidents, cutting resolution time and adhering to established protocols.

Brasília, Distrito Federal, Brasil

Delivered expert troubleshooting and monitoring for technology infrastructure, achieving reduction in downtime and ensuring seamless operations across platforms.Resolved complex technical issues through on-site and remote support, maintaining optimal system performance across diverse environments.Executed technical problem resolution via ITSM activation, improving service delivery and ensuring compliance with SLAs.Managed ticket control and escalation, efficiently tracking issues to increase resolution speed and enhance customer satisfaction.Enhanced incident management processes by following up on all technical incidents until closure, resulting in a improvement in user experience.

Brasília, Distrito Federal, Brasil

Resolved over remote support issues for Banco do Brasil's Internet Banking application, increasing customer satisfaction for both national and international users.Managed and prioritized a high volume of support requests, achieving prompt resolution rate and cutting average response time.Created, escalated, and tracked over support tickets with 99% resolution within service level agreements, ensuring meticulous documentation.Collaborated with cross-functional teams to address complex issues, leading to reduction in resolution time and boosting client satisfaction.Trained new team members on technical support protocols, improving team efficiency and reducing onboarding.

Brasília, Distrito Federal, Brasil

Conducted comprehensive inspections of paper documentation and records for Claro SA, achieving reduction in compliance discrepancies and ensuring alignment with internal standards and industry regulations.Identified and rectified discrepancies and errors in documentation, enhancing accuracy and ensuring strict adherence to company policies.Collaborated with cross-functional teams to expedite the resolution of documentation issues, leading to a faster processing time and improved operational efficiency.Implemented a systematic inspection approach that improved quality control measures, resulting in increase in overall documentation accuracy.Maintained detailed inspection reports and records, providing actionable insights that contributed to process improvements and better data integrity within Claro SA's operations.

Brasil

/ CCAA 10/2011 - 01/2012● Developed and administered English language proficiency assessments for non-native speakers, resulting in better accuracy rate in skillevaluation.● Conducted personalized and group-based lessons, improving student speaking, listening, reading, and writing abilities.● Implemented innovative teaching methodologies, increasing student comprehension and language retention.● Designed and tailored course materials and curriculum for diverse language levels, enhancing engagement and learning outcomes forstudents.● Provided constructive feedback on language proficiency evaluations, facilitating improvement in students' fluency and overall languageskills.