Open to opportunities

Rajesh kumar

@rajeshkumar18

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I detect, investigate, and respond to enterprise cyber threats across SIEM, endpoint, and cloud environments.

India

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What I'm looking for

I'm looking to strengthen organizational security through proactive monitoring, threat hunting, incident response, continuous improvement, and effective collaboration across security and infrastructure teams.

At Tata Consultancy Services, I monitor and investigate enterprise security events across Microsoft Sentinel, IBM QRadar, Splunk, and Microsoft Defender for Endpoint in a 24×7 SOC environment. I've resolved 500+ security incidents while maintaining 95%+ SLA compliance.

I investigate phishing, malware, brute-force attacks, account compromise, privilege escalation, suspicious logins, and identity-based threats. I use KQL, threat intelligence, log correlation, and the MITRE ATT&CK Framework to hunt for IOCs, validate threats, and drive containment through recovery and root-cause analysis.

I also build Sentinel analytics rules, hunting queries, SOPs, runbooks, playbooks, operational reports, and dashboards that improve detection coverage, reduce false positives, and strengthen security operations.

Experience

Work history, roles, and key accomplishments

Current

SOC Analyst

Current

Tata Consultancy Services

Feb 2022 - Present (4 years 6 months)

Monitored and analyzed security events using SIEM tools in a 24x7 SOC environment. Investigated incidents, developed KQL queries, and managed vulnerabilities to ensure SLA compliance.