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Senior Cybersecurity Engineer - Elastic SIEM

Maximus • San Antonio, TX, US • published 2026-09-26 21:52:03.094578

Description

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS058, T4, Band 7 **Job\-Specific Essential Duties and Responsibilities:** * Lead complex SIEM engineering tasks with minimal supervision and provide technical guidance to the team. * Administer, operate, and sustain the Elastic SIEM platform (Elasticsearch, Kibana, Logstash, Beats/Elastic Agent) across NIPRNet, SIPRNet, and JWICS environments. * Monitor SIEM health, perform capacity planning, and resolve complex platform outages and degradations in accordance with defined SLAs. * Develop, tune, and maintain detection rules, alerts, dashboards, and visualizations in Elastic to support DCO mission requirements. * Ingest, normalize, and validate log data from diverse sources including endpoint, network, cloud, and application telemetry. * Collaborate with cyber operators and analysts to support threat detection, alert triage, and cyber incident investigation workflows. * Identify opportunities to improve SIEM coverage, data quality, and detection fidelity; lead implementation of improvements in coordination with the Government PMO. * Support Cyber Security Service Provider (CSSP) activities including continu...

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