Threat Detection Engineer

Leidos

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profile Job Location:

Arlington, TX - USA

profile Monthly Salary: $ 131300 - 237350
Posted on: 9 hours ago
Vacancies: 1 Vacancy

Job Summary

At Leidos we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers success. We empower our teams contribute to our communities and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers our people and our community. Our Mission Vision and Values guide the way we do business.

If this sounds like the kind of environment where you can thrive keep reading!

The Digital Modernization Sector brings together our digital transformation and IT programs allowing us to better serve our customers through scale and repeatability. Leidos has a critical need for a Threat Detection Engineer to support the DHS CISA SOC.

Leidos has an immediate need for an experienced Threat Detection Engineer for a new customer on a highly-visible and strategic Cybersecurity Task Order. The Detection Engineer will need to be a self-starter with excellent analytical and problem-solving skills flexibility good judgment and the ability to work within a team to stand up and mature the cybersecurity capabilities of our customer.

Threat Detection Engineering plays a crucial role in defending an organization by building implementing and tuning threat detection logic to identify and respond to malicious activities. The position requires expertise in security analytics data correlation threat intelligence and automation within a Security Information and Event Management (SIEM) platform or equivalent detection system/s.

Primary Responsibilities:

The Threat Detection Engineer will be responsible for the following:

  • Develop implement and maintain detection rules to identify malicious behaviors.

  • Optimize detection efficacy by reducing false positives and increasing true positive rates

  • Work closely with the Incident Response Team (IRT) to provide coverage for detected threats as well as detailed analysis and documentation.

  • Integrate automated workflows and playbooks to streamline response processes.

  • Collaborate with threat intelligence teams to develop detection logic for emerging threats.

  • Generate reports and dashboards to highlight detection efficiency and threat trends.

  • Document detection processes methodologies and workflows.

  • Share insights and mentor team members on best practices in threat detection.

Basic Qualifications:

BS degree in Science Technology Engineering Math or related field and 12-15 years of prior relevant experience with a focus on cybersecurity. Additional years of experience and/or certs will be considered in lieu of a degree.

  • Strong expertise in SIEM platforms and familiarity with query languages (e.g. SPL KQL).

  • Understanding of malware behaviors threat actors and attack tactics (MITRE ATT&CK).

  • Ability to independently assess and improve detection rules.

  • Expertise with troubleshooting and documentation skills.

  • Develop and fine-tune detection rules to identify more complex threats.

  • Collaborate with the threat intelligence team to incorporate threat indicators into detection logic. Experience with automated detection workflows and streamline incident response processes.

  • The Engineer will contribute to playbook development and work closely with Incident Response on detection coverage.

  • Lead/Mentor Analysts in detection techniques and security best practices.

Preferred Qualifications:

  • Understanding of malware behaviors threat actors and attack tactics (MITRE ATT&CK).

  • Experience with automation and scripting (e.g. Python PowerShell).

Candidate must have one of the following:

Certifications

  • SANS: GCDA GCDT GCFA GCFE GCTI GCIA GCIH

  • Splunk: Certified Power User Splunk Admin Certified Cybersecurity Defense Analyst Certified Cybersecurity Defense Engineer (SCCDE).

MITRE: MITRE ATT&CK Defender (MAD) certs.

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

Original Posting:

April 27 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 $131300.00 - $237350.00

The Leidos pay range for this job level is a general guideline onlyand 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.


Required Experience:

IC

At Leidos we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers success. We empower our teams contribute to our communities and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers o...
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Leidos is an innovation company rapidly addressing the world's most vexing challenges in national security and health. Our 47,000 employees collaborate to create smarter technology solutions for customers in these critical markets.

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