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Leidos

Threat Detection Engineer

Leidos

Published 29 Apr 2026
Arlington, TX, USA
131K - 237K USD Annual
Remote

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Role Highlights

Languages used

Python

Key skills

SIEM
Transformation
SOC
Security
Data
Automation
Mathematics
Malware
TroubleShooting
Scripting

Tools, Libraries and Frameworks

PowerShell
Splunk

Description

The Threat Detection Engineer develops, implements, and maintains detection rules to identify malicious behaviors. This role involves optimizing detection efficacy by reducing false positives and increasing true positive rates. The engineer collaborates with incident response and threat intelligence teams to provide coverage for detected threats and develop logic for emerging threats. Responsibilities include integrating automated workflows and playbooks to streamline response processes. Additionally, the role requires generating reports and dashboards to highlight detection efficiency and threat trends. The engineer also documents detection methodologies and mentors team members on best practices.

Required Qualifications and Skills

Candidates must possess a Bachelor of Science degree in a STEM field or a related discipline along with 12 to 15 years of relevant cybersecurity experience. Additional years of experience or professional certifications may be considered in lieu of a degree. Required expertise includes proficiency in SIEM platforms, query languages, and knowledge of malware behaviors and attack tactics. Applicants must hold specific certifications from SANS, Splunk, or MITRE to be considered for the role.

Disclaimer

Disclaimer: Job and company description information and some of the data fields may have been generated via GPT-4 summarisation and could contain inaccuracies. The full external job listing link should always be relied on for authoritative information.

About the company

Leidos

Size

33167

Founded

HQ

Reston, US

Public/Private

Public Company

Description

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. Our 47,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $14.4 billion for the fiscal year ended December 30, 2022. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead, visit careers.leidos.com for our latest opportunities.

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