Yatheesh Reddy

About Yatheesh Reddy

Security Engineer with about 4 years of experience in threat detection, incident…

Experience

1. Security Engineer

   American Express

   Dec 2023 — Present · Jersey City, NJ, US

   Drive end-to-end threat monitoring and detection by integrating Splunk (SIEM), IDS/IPS, and AWS GuardDuty for real-time log correlation and alert triage, enabling proactive incident containment and minimizing dwell time.• Automate repetitive security operations using Python, Bash, and AWS Lambda, building scripts for log parsing, alert enrichment, and remediation workflows — improving operational efficiency and reducing false positives by 30–40%.• Perform periodic threat modeling and risk assessments to identify gaps in system architecture, data flow, and network segmentation; collaborate with product teams to embed secure-by-design principles across platforms.• Architect and deploy secure cloud configurations in AWS using Terraform and CloudFormation, enforcing identity, encryption, and network isolation controls that align with NIST 800-53 and CIS benchmarks.• Conduct vulnerability scanning and prioritization through tools like Nessus and AWS Security Hub, correlating threat intelligence with asset exposure to define remediation roadmaps based on exploitability and business impact.• Investigate anomalies in network traffic and application logs, leveraging Splunk dashboards, packet captures, and threat intelligence feeds to identify Indicators of Compromise (IOCs) and mitigate risks before exploitation.• Collaborate closely with SOC, DevOps, and Cloud Engineering teams to integrate automated incident response and secure CI/CD pipelines, ensuring rapid detection, containment, and recovery across hybrid environments.• Deliver continuous improvements in detection and defense through custom playbooks, attack simulations, and adversary emulation exercises aligned with MITRE ATT & CK frameworks.

Education

• Gannon University

  Master's degree, Information Assurance & Cybersecurity