SIEM(Security Information & Event Management) Engineer

Leidos LLC; Maryland; On-site; USD 131,000 - 237,000; Full time

Benefits offered by this job

Paid Time Off

11 paid Holidays

401K with match

Flexible Schedules

Discounted Stock Purchase Plans

Technical Upskilling

Parental Paid Leave

Job summary

Leidos is seeking a SIEM Engineer to join a fast-paced, SAFe-based program in the Intel Sector’s Cyber & Analytics Business Area. The role focuses on configuring event data collection, parsing, correlation, and visualization to support actionable insights and robust security monitoring.

The candidate will work across teams to enhance audit data quality, implement dashboards, and sustain Splunk-based analytics in a multi-site environment. TS/SCI with Polygraph is required for U.S. positions.

Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Network Engineering, or a related field.
• At least 12 years of relevant experience is preferred.
• At least 5 years of experience with Splunk, ArcSight, Zenoss, StealthWatch, or TripWire.

Responsibilities

• Configure collection, parsing, correlation, and visualization of event data for a critical operational system.
• Support engineering and administration of Splunk multi-site clusters, indexers, forwarders, and search heads.
• Design and develop reporting solutions and dashboards based on end-user requirements.
• Improve audit data collection quality to reduce false positives/negatives and strengthen monitoring.

Job description

SIEM Engineer

This role can be part time or full time. Leidos has an exciting and challenging opportunity for an SIEM (Security Information and Event Management) Engineer in our Intel Sector’s Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security! A SIEM Engineer is needed to join a high performing agile team using the Scaled Agile Framework (SAFe) methodology to support a large, complex, fast-paced program. Program execution follows DEVOPS best practices and employs robust development, test, and production environments. We are using Behavior Driven Development (BDD) and test automation tools alongside a full suite of team collaboration tools. The program provides system engineering, development, test, integration and operational support for a program that is focused on injecting new technology and adding advanced capabilities while continuing to support an on-going mission and operational system.

Job Summary / Primary Responsibilities

The selected candidate will be responsible for configuring the collection, parsing, correlation, and visualization of event data for a critical operational system. She/he will apply strong expertise in system administration, log management, event correlation, and threat detection to support the development and sustainment of capabilities that analyze collected data, generate actionable insights, and help determine whether monitored systems are operating as expected. Working as part of a collaborative team, the candidate will support the configuration of systems used by analysts and end users, as well as the collection and extraction of data used to enhance existing and future reports, analytics, and dashboards. The individual will also contribute to the design and development of reporting solutions based on end-user requirements. In addition, the selected candidate will work across teams to improve the definition and quality of audit data being collected, with the goal of reducing false positives and false negatives and strengthening the overall accuracy and effectiveness of system monitoring.

Basic/Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, Network Engineering, or a related field, and at least 12 years of relevant experience.


• Additional experience may be substituted for a degree.


• At least 5 years of experience with one or more of the following technologies: StealthWatch, TripWire, Zenoss, ArcSight, Splunk.


• Must have experience in the engineering and administration of Splunk.


• Hands-on experience implementing, and supporting Splunk multi-site clusters, including indexer clustering, site awareness, replication/search factors, and cross-site failover.


• Experience designing, implementing, and supporting Splunk core components, including indexers, forwarders, search heads, and cluster managers.


• Experience configuring and administering Splunk data ingestion and forwarding for both new and existing applications and data sources.


• Proven ability to troubleshoot Splunk dataflow issues across core platform components.


• Experience configuring and deploying data collection across a variety of operating systems and network platforms.


• In-depth experience creating Dashboards and Analytics within SIEM tools.


• Experience working with monitoring systems that support auditing, incident response, and system health monitoring.


• Must have a solid understanding of network components, devices, ports, protocols, and basic networking troubleshooting steps.


• Demonstrated ability to troubleshoot issues related to log feeds, search performance, and field extractions.


• Must have the ability to resolve issues related to data solutions and data quality.


• Clearance Required: Must have TS/SCI with Polygraph.

Preferred Qualifications

• Splunk Certified Administrator certification strongly preferred.


• Experience working in a Network Security Operations Center (SOC).


• Demonstrated skill in data visualization.


• Extensive experience developing incident response workflows within a SIEM Tool.


• CompTia Security+ Certification.


• GIAC Certified Incident Handler (GCIH) Certification.


• GIAC Cyber Threat Intelligence (GCIT) Certification.


• Formal SIEM training.


• Experience working in an Agile team or program environment.

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you.

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Original Posting: August 17, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range: Pay Range $131,300.00 – $237,350.00. The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Pay and Benefits Pay and benefits are fundamental to any career decision. That’s why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement.

Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.