Senior SIEM Engineer

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Senior SIEM Engineer in Others

Cognizant
Full time
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Others
09/11/2026
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Chennai, India

Responsibilities

Lead SIEM platform optimization and modernization initiatives focused on availability, performance, and reliability.
Design, manage, and troubleshoot log source integrations, ingestion pipelines, and data transformation workflows.
Develop scripting and framework-based automation to improve operational efficiency and reduce manual effort.
Manage escalations, audit support, major incidents, access requests, and vendor engagements.
Provide technical guidance to engineering teams and mentor Level 1 engineers through training, documentation, onboarding materials, SOPs, and troubleshooting playbooks.

Requirements

Bachelor’s degree in Computer Science, Engineering, Information Security, or a related discipline, or equivalent work experience.
At least 6 years of experience in cybersecurity, SIEM engineering, security monitoring, or log management.
Hands-on experience administering and supporting SIEM platforms, Cribl, Cortex, and ELK Stack.
Experience with troubleshooting, upgrades, patching, change management, and root cause analysis.
Strong expertise in log source integrations, data ingestion pipelines, and data transformation workflows.
Proficiency in scripting languages such as Python and Bash, with experience driving automation initiatives.
Strong analytical, troubleshooting, problem-solving, communication, and collaboration skills.
Experience supporting enterprise-scale cybersecurity operations, security monitoring, threat detection, incident response, vendor collaboration, platform modernization, automation, and process improvement is helpful.
SIEM Administration Certification from a major vendor is preferred.
Demonstrated ability to mentor and develop junior engineers and work independently in a fast-paced environment.

Benefits

Hybrid work model with potential work from a Cognizant office based on business requirements.
Opportunity to collaborate with global teams within Cognizant’s Corporate Security Global Cyber Operations SIEM Engineering Team.

Cognizant

Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value. We build full-stack AI solutions powered by deep industry, process and engineering expertise — embedding an organization's unique context into technology system...

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