Rajasekar Subban

Provided remote assistance to enterprise customers to implement SIEM and related security controls, including vulnerability management, DLP, device encryption, risk management, and endpoint protection. Supported security operations activities such as monitoring and analysis of security events and log trends for heterogeneous environments. Helped with investigations and remediation support within the SOC workflow, and contributed to operational planning and reporting.

Provided remote assistance to enterprise customers to implement intrusion prevention, vulnerability management, DLP, device encryption, risk management, and antivirus solutions. Shared best practices across the organization to align execution with quality objectives. Trained and mentored a security operations team through feedback and coaching, and conducted competitor research to identify improvement opportunities.

Monitored server and firewall event logs and managed security monitoring workflows in SIEM (QRadar). Analyzed threats using endpoint security tools and EDR capabilities, and supported phishing monitoring and response activities. Conducted vulnerability scanning, DLP policy monitoring, and recommended security system improvements while providing organizational leadership focused on business targets.

Upgraded, deployed, and implemented endpoint security tooling on servers and workstations, including protective controls for malicious network traffic. Responded to virus outbreaks by identifying out-of-date clients and ensuring updated definitions were applied. Reviewed security and compliance reports, analyzed security events, and supported customer security risk assessments and system compliance using the deployed security products.

Managed endpoint security operations by upgrading and deploying endpoint protection and enforcing blocking of malicious domains and IPs. Supported incident readiness by handling virus outbreak response using updated protection definitions. Performed threat monitoring across SIEM and EDR workflows and contributed to vulnerability assessment and security/compliance monitoring, including reviewing threat logs sourced from Zscaler and auditing environments for known vulnerabilities.

Provided system administration consulting support in enterprise environments. Supported day-to-day operational responsibilities related to system administration as part of the assigned role. Contributed to maintaining service reliability through ongoing support activities consistent with the system administration function.

Worked in a test engineering role supporting testing activities in the assigned environment. Responsibilities focused on delivering test support as part of the engineering operations. Followed role expectations aligned with testing and operational readiness in the organization.

Worked as a system administrator supporting operational systems in the assigned environment. Responsibilities included administration tasks associated with the system administrator role. Provided ongoing support to keep systems running reliably within the organization.

Worked as a system engineer in Oman, supporting system-related engineering tasks within the organization. Responsibilities aligned with system engineering support and operational readiness. Contributed to maintaining and supporting systems in the assigned environment.

Worked as a customer support engineer in a support capacity for IBM-related engagements. Responsibilities included assisting customers with support needs as part of the customer support function. Provided troubleshooting and support aligned with the customer support engineer role in the assigned environment.