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Ankush Varma

@ankushvarma

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Security Analyst at PwC India fine-tuning SIEM alerts and developing detection use cases and correlation rules.

India

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At PwC India, I fine-tune SIEM alerts, develop security use cases and correlation rules, and handle incident investigations and escalations.

Previously, at Writer Information, I managed SIEM infrastructure and supported security monitoring, incident response, and threat analysis.

At Allied Digital Services Ltd. and Quantega Technologies Pvt Ltd, I integrated endpoints with SIEM platforms, created detection rules and reports, and troubleshot log-ingestion issues. My work spans ArcSight, Splunk, DNIF, Seceon, IBM QRadar, Microsoft Sentinel, and SentinelOne.

Experience

Work history, roles, and key accomplishments

Current

Associate – Security Analyst

Current

PwC India

Sep 2025 - Present (1 year)

Performs SIEM fine-tuning to improve detection accuracy and reduce alert noise. Develops security use cases and correlation rules, handles incidents, and validates security logs.

SIEM ArcSight Splunk DNIF Seceon AI IBM QRadar Microsoft Sentinel SentinelOne Incident Response Threat Detection Log Analysis SIEM Tuning Use Case Development Correlation Rules Log Verification Troubleshooting

Senior Security Analyst

Writer Information

Nov 2023 - May 2025 (1 year 6 months)

Managed SIEM infrastructure and supported day-to-day security monitoring operations. Performed incident response, threat analysis, and fine-tuned SIEM rules to improve alert quality.

SIEM Incident Response Threat Analysis SIEM Tuning Security Monitoring Alert Management Escalation Management

Security Analyst

Allied Digital Services Ltd.

Mar 2022 - Nov 2023 (1 year 8 months)

Integrated endpoints with SIEM platforms for centralized monitoring. Created security use cases, detection rules, and reports, and handled security incidents and escalations.

SIEM Endpoint Integration Use Case Development Detection Rule Development Reportes De Seguridad Incident Handling Escalation Management Troubleshooting Data Ingestion

Security Analyst

Quantega Technologies Pvt Ltd

May 2020 - Mar 2022 (1 year 10 months)

Integrated endpoints with SIEM platforms for centralized monitoring. Created security use cases, rules, and reports, and monitored security events and incidents.