Sr. SIEM Administrator

6 days ago


Bengaluru India Atos Full time

Job Description About Atos Atos is a global leader in digital transformation with c. 78,000 employees and annual revenue of c. 10 billion. European number one in cybersecurity, cloud and high-performance computing, the Group provides tailored end-to-end solutions for all industries in 68 countries. A pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos is a SE (Societas Europaea) and listed on Euronext Paris. The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space. SIEM Platform Monitoring & Maintenance Monitor the overall health and performance of the SIEM solution (e.g., Splunk, QRadar, ArcSight, LogRhythm, Sentinel). Conduct daily/weekly health checks for data ingestion status, indexing performance, CPU/memory utilization, and storage capacity. Detect and resolve issues related to dropped logs, parsing errors, ingestion failures, and time sync mismatches. Log Source Onboarding & Validation Validate newly onboarded log sources for correct parsing, categorization, and normalization. Maintain an up-to-date log source inventory and ingestion dashboard. Verify logs are received in the correct format, with relevant fields available for detection and correlation. Data Quality & Integrity Ensure log data integrity by continuously reviewing timestamp accuracy, event duplication, and message completeness. Implement log source heartbeat monitoring or alerting for missing logs or ingestion gaps. Automation & Dashboards Develop or enhance dashboards, scripts, or tools to automate health monitoring and alerting (e.g., using SPL, KQL, Python, PowerShell). Create visualizations and reports to track ingestion KPIs, latency, log volume trends, and data anomalies. Work Location Powai(Mumbai)


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