Rachana Rajesh

Developed and troubleshot JavaScript-based enterprise workflows, including integrations with external APIs. Worked on evaluation processes related to agentic AI. Applied security and automation awareness in workflow and integration implementation.

• Fine-tuned Wazuh SIEM detection rules mapped to MITRE ATT&CK, reducing false positives by approximately 35% and improving alert accuracy and detection reliability.

• Led end-to-end incident response and SIEM-based monitoring, including alert triage, log analysis, threat investigation, containment, and post-incident documentation.

• Identified exposed attack surfaces and security misconfigurations through proactive security reviews and recommended remediation to engineering teams.

• Analyzed phishing and malicious attachment threats using Perception Point and improved detection and escalation workflows.

• Performed network-security monitoring and threat detection using Wireshark and Suricata, analyzing logs, packet captures, and anomalous network behavior.

• Developed and automated network-security monitoring workflows using Python, C, and Lua, reducing manual effort by approximately 40%.

• Designed and supported secure environments using SD-WAN, firewalls, VPNs, TCP/IP, and RADIUS-based authentication and access controls.

• Used Git and GitHub as the primary codebase and version-control workflow for source control, collaboration, branching, and code reviews.

• Performed basic malware and suspicious-script analysis using PowerShell and Bash to support investigation and troubleshooting of security-related behavior.

• Investigated network and security issues through packet analysis, protocol troubleshooting, log review, and root-cause analysis.