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Sarathkumar Rajkumar

@sarathkumarrajkumar

Cybersecurity/Infrastructure Engineer at Discover Financial Services, turning threat intelligence into hunts and stronger detection.

Canada
Message

At Discover Financial Services, I correlate external intelligence with SIEM, EDR, and SOC telemetry to identify emerging threats and prioritize response. I develop threat intelligence products and conduct intelligence-driven threat hunts.

I map indicators and behaviors to MITRE ATT&CK, enriching alerts and workflows with context to support detection engineering and incident response. This work has improved threat detection accuracy and reduced alert fatigue.

Previously, I worked as a Systems/Network Engineer Consultant at StateFarm and a System Admin at Reveal Holdings LLC. My experience also includes Salesforce work at Sutherland Global Services, along with security, network, and business-data tools across these roles.

Experience

Work history, roles, and key accomplishments

Discover Financial Services logoDS
Current

Cybersecurity/Infrastructure Engineer

Discover Financial Services

Aug 2023 - Present (3 years 1 month)

Correlates external intelligence with internal SIEM, EDR, and SOC telemetry to identify emerging threats and prioritize response. Develops tactical, operational, and strategic intelligence products, including weekly threat summaries and executive briefings.

Education

Degrees, certifications, and relevant coursework

New York Institute of Technology logoNT

New York Institute of Technology

Master of Science, Computer Science

2016 - 2017

Pursued a Master of Science in Computer Science at New York Institute of Technology from 2016 to 2017.

Tech stack

Software and tools used professionally

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