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Sandhya Yadavalli
Mid-level Cybersecurity Analyst specializing in SIEM, incident response, and Zero Trust
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About
Cybersecurity/SOC-focused engineer with hands-on production experience integrating and tuning Splunk Enterprise Security for a zero-trust program, including CIM normalization, correlation/risk-based detection tuning, and performance optimization via forwarder-level filtering and index strategy. Has cross-disciplinary incident troubleshooting experience spanning SIEM, networking, and hardware, and has automated customer/team-specific security workflows using Python in Splunk playbooks; collaborated on-site with HSBC IT/SOC teams to deliver dashboards and security policies.
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Key Strengths
- Production integration of Splunk ES in a zero-trust security model
- Resolved broken detections by fixing field extractions and normalizing inconsistent log data (CIM alignment)
- Improved Splunk performance by filtering low-value events at the forwarder and routing data into separate indexes
- Cross-layer debugging across SIEM, networking, and hardware to identify root cause (overloaded NIC causing syslog delays/packet drops)
- Built Python-based security workflow automations in Splunk playbooks to enrich alerts and apply risk-based logic
- Direct on-site collaboration with IT/SOC stakeholders to gather requirements and iterate dashboards/policies based on feedback
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