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Senior Cybersecurity Engineer – Elastic SIEM

Maximus • San Antonio, TX, US • published 2026-09-26 09:51:26.132264

Description

Friday, September 25, 2026 San Antonio TX United States Full\-time Maximus is seeking a Senior Cybersecurity Engineer – Elastic SIEM. This role is on\-site in San Antonio, TX and requires an active TS/SCI security clearance. 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 opportu...

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