Cybersecurity Engineer – Elastic SIEM (Journeyman)

Maximus, Inc.; San Antonio (TX); On-site; USD 120,000 - 140,000; Full time

Job summary

Maximus seeks a Cybersecurity Engineer – Elastic SIEM (Journeyman) to join our onsite team in San Antonio, TX. You will administer Elastic Stack across multiple networks, develop detection content, and support threat detection and incident response with DoD guidelines.

Required TS/SCI clearance, a bachelor’s in a related field, and at least 5 years of hands‑on cybersecurity engineering experience. The role involves Agile planning and documented procedures, with strong emphasis on operational

Qualifications

• Active TS/SCI security clearance.
• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field or equivalent experience.
• 5 years of hands-on cybersecurity engineering experience.
• Experience with Elastic Stack in an operational SIEM environment.
• Experience supporting threat detection, alert triage, and cyber incident investigation.

Responsibilities

• Independently perform standard SIEM engineering tasks with limited supervision and escalate complex issues.
• Administer, operate, and sustain Elastic SIEM across NIPRNet, SIPRNet, and JWICS.
• Monitor SIEM health, capacity plan, and resolve outages per SLAs.
• Develop, tune, and maintain detection rules, alerts, dashboards, and visualizations in Elastic.
• Ingest, normalize, and validate log data from endpoint, network, cloud, and application telemetry.
• Collaborate with cyber operators and analysts on threat detection and incident workflows.
• Identify opportunities to improve SIEM coverage and data quality; implement with Government PMO.
• Support CSSP activities including continuous monitoring and security event analysis.
• Create and maintain runbooks, SOPs, and knowledge base articles.
• Participate in Agile/SAFe PI planning and sprint delivery.

Skills

Elastic SIEM

SIEM engineering

Threat detection

Incident investigation

AWS GovCloud

Scripting (Python)

KQL/EQL

Education

Bachelor’s degree in Cybersecurity/CS/IT

Tools

Elastic Stack

Kibana

Logstash

Beats/Elastic Agent

SIEM integrations

Palo Alto Cortex XSOAR

Job description

Description & Requirements

Maximus is currently seeking a Cybersecurity Engineer – Elastic SIEM (Journeyman).

This role is onsite, 5 days a week, in San Antonio, TX and requires an active Top Secret / SCI (TS/SCI) security clearance.

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS057, T3, Band 6

Job-Specific Essential Duties and Responsibilities:

• Independently perform standard SIEM engineering tasks with limited supervision; escalation complex issues to senior engineers.
• 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 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; implement improvements in coordination with the Government PMO.
• Support Cyber Security Service Provider (CSSP) activities including continuous monitoring and security event analysis.
• Create and maintain technical documentation including runbooks, standard operating procedures (SOPs), and knowledge base articles.
• Participate in Agile/SAFe Program Increment (PI) planning and sprint execution in support of platform delivery.
• Adhere to Air Force cybersecurity standards and all applicable DoD, IC, and USAF policy and directives across all enclaves.

Job-Specific Minimum Requirements:

• Active Top Secret / SCI (TS/SCI) security clearance.
• Bachelor’s degree in Cybersecurity, Computer Science, Information Technology, or related field (or equivalent experience).
• 5 years of hands‑on cybersecurity engineering experience.
• Intermediate proficiency level: ability to independently administer and troubleshoot standard Elastic SIEM operations and elevate complex issues.
• Demonstrated hands‑on experience with Elastic Stack (Elasticsearch, Kibana, Logstash, Beats/Elastic Agent) in an operational SIEM environment.
• Experience supporting threat detection, alert triage, and/or cyber incident investigation.
• Familiarity with DCO concepts, CSSP operations, and defensive cyber frameworks.
• Experience working across multiple network security domains (NIPR, SIPR, or JWICS).
• Meet applicable DoD 8140 requirements for the assigned work role. DCWF 521, Cyber Defense Infrastructure Support Specialist, Intermediate Proficiency; specific required certifications pending contract confirmation.

Preferred Skills and Qualifications:

• Experience with SIEM/SOAR integrations (e.g., Elastic, Palo Alto Cortex XSOAR, or similar).
• Familiarity with Elastic’s Fleet/Agent management and integration development.
• Experience with AWS GovCloud environments (IL4/IL5/IL6).
• Knowledge of MITRE ATT&CK framework and its application to detection engineering.
• Experience with scripting/automation (Python, Bash, KQL/EQL) for SIEM rule development and data pipeline management.
• Familiarity with container‑based deployments (Kubernetes/EKS) in classified environments.
• Prior experience supporting USAF or DoD DCO programs.
• One or more of the following certifications preferred: Elastic Certified Engineer, CompTIA CySA , GCIA, IH.

techjobs #clearance #veteransPage

Minimum Requirements

TCS057, T3, Band 6

EEO Statement

Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics.

Pay Transparency

Maximus compensation is based on various factors including but not limited to job location, a candidate’s education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Annual salary is just one component of Maximus’s total compensation package. Other rewards may include short‑and long‑term incentives as well as program‑specific awards. Additionally, Maximus provides a variety of benefits to employees, including health insurance coverage, life and disability insurance, a retirement savings plan, paid holidays and paid time off. Compensation ranges may differ based on contract value but will be commensurate with job duties and relevant work experience. An applicant’s salary history will not be used in determining compensation. Maximus will comply with regulatory minimum wage rates and exempt salary thresholds in all instances.

Accommodations
Maximus provides reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment. If you require assistance at any stage of the employment process‑including accessing job postings, completing assessments, or participating in interviews,‑please contact People Operations at .

Minimum Salary

$ 120,000.00

Maximum Salary

$ 140,000.00