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Rajkumar Varikuppala

Immediate Joiner | Senior Cybersecurity Analyst | SOC Operations | SIEM (Microsoft Sentinel, ArcSight) | EDR (CrowdStrike, Microsoft Defender) | SOAR (Logic Apps, XSOAR) | Threat Detection Incident Response | CEH |CySA+

Hyderabad

5+ years of work experience

NTT DATA India
Aug 20223 yrs 3 mosOct 2025

Noida, Uttar Pradesh, India

Senior MS Engineer Security with Six Years of compressive experience of SOC analysis, incident response, threat detection Skilled in safeguarding organizational assets through advanced phishing analysis, incident management, and leveraging tools such as Falcon CrowdStrike EDR, ArcSight, Sentinel and a wide array of SIEM, EDR, and phishing management platforms. I specialize in leading advanced incident response activities, including threat detection, containment, and recovery, while performing in-depth log analysis and threat investigations to identify root causes and mitigate risks. My expertise extends to optimizing response playbooks to ensure adherence to organizational security protocols, streamlining incident response processes, and enhancing operational efficiency. I empower junior analysts with the skills and knowledge needed to strengthen team capabilities and improve incident handling. Collaborating with cross-functional teams, committed to continuous improvement and innovation, I thrive on tackling complex security challenges to create a safer digital environment for businesses and their stakeholders.
NTT DATA
Aug 20223 yrs 3 mosOct 2025

Cloud SIEM Engineering – Microsoft Sentinel. Led advanced incident investigations (L2) including ransomware, lateral movement, phishing campaigns, credential compromise. Developed complex KQL queries for threat hunting, anomaly detection, and forensic investigations. Integrated Sentinel with Microsoft Defender, CrowdStrike, Azure AD, and third-party security tools. Created automation playbooks using Azure Logic Apps to automate containment actions (endpoint isolation, user disablement, IP blocking). Mentored L1 analysts and conducted knowledge-sharing sessions. Reduced Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR) through automated workflows. Built executive dashboards and security workbooks for compliance and reporting. Led high-severity cloud incident investigations including suspicious Azure AD sign-ins, privilege escalation attempts, ransomware indicators, and data exfiltration attempts.
NTT DATA
Aug 20223 yrs 3 mosOct 2025

Noida, Uttar Pradesh, India

Aarvee Associates
Mar 20211 yr 1 moMar 2022

Hyderabad, Telangana, India

As a Senior Cybersecurity Engineer at Aarve, I am responsible for safeguarding organizational assets by leading security monitoring, threat detection, and incident response operations. My role involves leveraging advanced tools such as Microsoft Sentinel, ArcSight, CrowdStrike, Microsoft Defender, Cortex XSOAR, and Forcepoint DLP to detect, analyze, and mitigate cyber threats. I conduct in-depth log analysis, IOC/IOA investigations, phishing analysis, and data exfiltration monitoring to identify and contain risks. I also fine-tune SIEM rules, build custom dashboards, and automate response playbooks to strengthen detection capabilities and reduce false positives. In addition to managing complex security incidents, I mentor SOC analysts, ensuring proper triage, escalation, and SLA compliance. I collaborate with cross-functional teams to enhance Aarve’s security posture, resilience, and compliance with industry standards.
Centorrino Technologies
Sep 20191 yr 6 mosFeb 2021

Bengaluru, Karnataka, India

During this tenure worked as a System Engineer | Expertise in Falcon CrowdStrike EDR Proactive and detail-oriented Cybersecurity Analyst with hands-on experience in endpoint detection and response (EDR) solutions, specializing in Falcon CrowdStrike. Skilled in monitoring, analyzing, and responding to cybersecurity threats to safeguard critical systems and data. Core Responsibilities: Real-time threat detection and incident response using Falcon CrowdStrike EDR. Investigating and remediating security incidents to mitigate potential risks. Conducting endpoint security analysis and generating actionable threat intelligence. Collaborating with teams to enhance security posture and maintain compliance standards

Education

Civil Engineering

Mallareddy institute of technology and science

20114 yrs2015

Bachelor's degree, Civil Engineering

Maharshi vidya mandir

20114 yrs2015

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Headline

Immediate Joiner | Senior Cybersecurity Analyst | SOC Operations | SIEM (Microsoft Sentinel, ArcSight) | EDR (CrowdStrike, Microsoft Defender) | SOAR (Logic Apps, XSOAR) | Threat Detection Incident Response | CEH |CySA+

About

Senior Cybersecurity Engineer with over 5+ years of experience in SOC operations, incident response, and threat detection across enterprise environments. Experienced in handling end-to-end security monitoring, alert triage, investigation, and remediation while ensuring SLA compliance and improving overall security posture. Strong hands-on expertise in SIEM platforms including Microsoft Sentinel (Azure Sentinel) and ArcSight, with proven ability to configure data connectors, perform log ingestion, develop KQL queries, and create analytics rules, dashboards, and workbooks to enhance threat visibility and reduce false positives. Skilled in endpoint security using CrowdStrike Falcon and Microsoft Defender for Endpoint, with experience in IOC/IOA analysis, process tree investigation, malware detection, and incident containment such as host isolation and process termination. Proficient in SOAR and security automation using Azure Logic Apps and Cortex XSOAR to streamline incident response workflows and reduce Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR). Hands-on experience in data protection technologies including Forcepoint DLP and Netskope CASB for monitoring sensitive data movement, detecting data exfiltration, and managing cloud security risks such as shadow IT and unauthorized SaaS access. Strong understanding of cloud security concepts with experience in Microsoft Azure, Azure Active Directory (Entra ID), and log analytics. Experienced in phishing investigation, threat intelligence analysis, and vulnerability management with the ability to analyze large volumes of security data to detect anomalies and advanced threats. Proven ability to mentor SOC analysts, improve detection use cases, and collaborate with cross-functional teams to strengthen organizational security posture. Certified in Microsoft SC-200, CompTIA CySA+, and CEH, demonstrating strong technical expertise and commitment to continuous learning in cybersecurity.

Location

Hyderabad

Work experience

Senior MS Engineer - Security at NTT DATA India, Aug 2022 - Oct 2025 · 3 yrs 3 mos, Noida, Uttar Pradesh, India, Senior MS Engineer Security with Six Years of compressive experience of SOC analysis, incident response, threat detection Skilled in safeguarding organizational assets through advanced phishing analysis, incident management, and leveraging tools such as Falcon CrowdStrike EDR, ArcSight, Sentinel and a wide array of SIEM, EDR, and phishing management platforms. I specialize in leading advanced incident response activities, including threat detection, containment, and recovery, while performing in-depth log analysis and threat investigations to identify root causes and mitigate risks. My expertise extends to optimizing response playbooks to ensure adherence to organizational security protocols, streamlining incident response processes, and enhancing operational efficiency. I empower junior analysts with the skills and knowledge needed to strengthen team capabilities and improve incident handling. Collaborating with cross-functional teams, committed to continuous improvement and innovation, I thrive on tackling complex security challenges to create a safer digital environment for businesses and their stakeholders.

Security Engineer at NTT DATA, Aug 2022 - Oct 2025 · 3 yrs 3 mos, Cloud SIEM Engineering – Microsoft Sentinel. Led advanced incident investigations (L2) including ransomware, lateral movement, phishing campaigns, credential compromise. Developed complex KQL queries for threat hunting, anomaly detection, and forensic investigations. Integrated Sentinel with Microsoft Defender, CrowdStrike, Azure AD, and third-party security tools. Created automation playbooks using Azure Logic Apps to automate containment actions (endpoint isolation, user disablement, IP blocking). Mentored L1 analysts and conducted knowledge-sharing sessions. Reduced Mean Time to Detect (MTTD) and Mean Time to Respond (MTTR) through automated workflows. Built executive dashboards and security workbooks for compliance and reporting. Led high-severity cloud incident investigations including suspicious Azure AD sign-ins, privilege escalation attempts, ransomware indicators, and data exfiltration attempts.

Senior MS Engineer - Security at NTT DATA, Aug 2022 - Oct 2025 · 3 yrs 3 mos, Noida, Uttar Pradesh, India

Security Engineer at Aarvee Associates, Mar 2021 - Mar 2022 · 1 yr 1 mo, Hyderabad, Telangana, India, As a Senior Cybersecurity Engineer at Aarve, I am responsible for safeguarding organizational assets by leading security monitoring, threat detection, and incident response operations. My role involves leveraging advanced tools such as Microsoft Sentinel, ArcSight, CrowdStrike, Microsoft Defender, Cortex XSOAR, and Forcepoint DLP to detect, analyze, and mitigate cyber threats. I conduct in-depth log analysis, IOC/IOA investigations, phishing analysis, and data exfiltration monitoring to identify and contain risks. I also fine-tune SIEM rules, build custom dashboards, and automate response playbooks to strengthen detection capabilities and reduce false positives. In addition to managing complex security incidents, I mentor SOC analysts, ensuring proper triage, escalation, and SLA compliance. I collaborate with cross-functional teams to enhance Aarve’s security posture, resilience, and compliance with industry standards.

System Engineer at Centorrino Technologies, Sep 2019 - Feb 2021 · 1 yr 6 mos, Bengaluru, Karnataka, India, During this tenure worked as a System Engineer | Expertise in Falcon CrowdStrike EDR Proactive and detail-oriented Cybersecurity Analyst with hands-on experience in endpoint detection and response (EDR) solutions, specializing in Falcon CrowdStrike. Skilled in monitoring, analyzing, and responding to cybersecurity threats to safeguard critical systems and data. Core Responsibilities: Real-time threat detection and incident response using Falcon CrowdStrike EDR. Investigating and remediating security incidents to mitigate potential risks. Conducting endpoint security analysis and generating actionable threat intelligence. Collaborating with teams to enhance security posture and maintain compliance standards

Education

Civil Engineering, Mallareddy institute of technology and science

Bachelor's degree, Civil Engineering, Maharshi vidya mandir