Detection Engineer: EDR/ITDR & MITRE ATT&CK Expert

ThreatLocker Inc.; Orlando (FL); Hybrid; USD 110,000 - 150,000; Full time

Job summary

ThreatLocker Inc. in Orlando, FL is seeking a Detection Engineer to drive the development and continuous improvement of detection content for ThreatLocker Detect.

You will create and maintain detection rules used by our EDR and ITDR products, ensuring alignment with MITRE ATT&CK. The role involves leveraging telemetry from malware analysis, threat hunting, and collaboration with Threat Analysts to identify gaps and improve coverage while minimizing false positives.

Qualifications

• 3+ years of information security experience.
• 2+ years working with EDR/ITDR in enterprise environments.
• Experience developing detection content preferred.
• Strong understanding of MITRE ATT&CK and its enterprise use.
• Experience creating Sigma, YARA and Snort rules.
• Strong knowledge of Windows OS and forensic artifacts.
• Experience with threat hunting and adversary emulation.
• Excellent communication and ability to explain technical concepts.

Responsibilities

• Develop, test, and maintain detection content for ThreatLocker’s EDR and ITDR platforms.
• Create and maintain Sigma, YARA, and Snort detection rules.
• Map detections to MITRE ATT&CK and improve coverage.
• Analyze Windows telemetry and forensic artifacts to identify detection opportunities.
• Research attacker techniques including persistence, privilege escalation, defense evasion, and post-exploitation activity.
• Collaborate with Threat Analysts and Security Researchers to remediate detection gaps.
• Validate detections through threat hunting, malware analysis, and adversary emulation.
• Tune detection content to reduce false positives and improve accuracy.
• Document detection methodologies and technical findings for internal teams.

Skills

EDR/ITDR experience

MITRE ATT&CK knowledge

Sigma rules

YARA rules

Snort rules

Threat hunting

Windows forensics

Analytical thinking

Communication skills

OSCP (cert)

Tools

Sigma

YARA

Snort

Job description

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.

Detection Engineer

Full Time Orlando, FL, US

30+ days ago Requisition ID: 1028

COMPANY OVERVIEW

ThreatLocker® is a global cybersecurity leader that stops cyberattacks before they happen. The company’s Zero Trust Platform prevents breaches from both known and unknown threats by allowing only explicitly trusted software and activity across endpoints, networks, and cloud systems. Built to deploy quickly and scale across complex environments, the platform reduces operational overhead while keeping business running uninterrupted. Headquartered in Orlando, Florida, with offices in Dublin, Dubai, and Brisbane, ThreatLocker protects over 70,000 organizations worldwide.

JOB OVERVIEW

ThreatLocker is seeking a Detection Engineer to drive the development and continuous improvement of detection content within the ThreatLocker Detect platform. This role is responsible for creating and maintaining detection rules used by our Endpoint Detection and Response (EDR) and Identity Threat Detection and Response (ITDR) products while ensuring alignment with the MITRE ATT&CK® Framework.

The Detection Engineer will leverage telemetry generated through malware analysis, vulnerability research, and proactive threat hunting to identify detection gaps and improve product coverage. Working closely with Threat Analysts and Security Researchers, this individual will develop high-quality detection logic that identifies evolving attacker techniques while minimizing false positives.

As a Detection Engineer, you are responsible for, but not limited to:

• Develop, test, and maintain detection content for ThreatLocker's Endpoint Detection and Identity Threat Detection platforms.
• Create and maintain custom Sigma, YARA, and Snort detection rules.
• Map detections to the MITRE ATT&CK Framework and continuously improve coverage.
• Analyze Windows telemetry and forensic artifacts to identify detection opportunities.
• Research attacker techniques including persistence, privilege escalation, defense evasion, and post-exploitation activity.
• Collaborate with Threat Analysts and Security Researchers to identify and remediate detection gaps.
• Validate detection logic through threat hunting, malware analysis, and adversary emulation.
• Tune detection content to improve accuracy while reducing false positives.
• Document detection methodologies and technical findings for internal teams.
• Stay current on emerging threats, attack techniques, and industry best practices.
• The role will be based in Orlando, FL and is an in-office position.

REQUIRED QUALIFICATIONS

• 3+ years of experience in Information Security.
• 2+ years of experience working with Endpoint Detection and Response (EDR) or Identity Threat Detection and Response (ITDR) technologies within an enterprise environment.
• Experience developing detection content is strongly preferred.
• Strong understanding of the MITRE ATT&CK Framework and its application within enterprise security.
• Experience creating custom Sigma, YARA, and Snort detection rules.
• Strong knowledge of Windows operating systems and Windows forensic artifacts.
• Experience with Windows persistence mechanisms, privilege escalation, defense evasion, and parent-child process relationships.
• Familiarity with malware analysis, threat hunting, and vulnerability research.
• Familiarity with adversary emulation and post-exploitation frameworks.
• Strong analytical, troubleshooting, and critical thinking skills.
• Excellent written and verbal communication skills with the ability to explain technical concepts to non-technical stakeholders.
• Ability to work independently while collaborating effectively within a team environment.
• Relevant certifications such as OSCP, GCFA, GCIH, GCIA, GCDA, GCTD, or GISP are a plus.

WORKING CONDITIONS

The duties described below are representative of those encountered while performing the essential functions of this position. If necessary, reasonable accommodation may be requested and will be evaluated for its relationship to the essential functions that must be performed.

• Job will generally be performed in an office environment but may require travel to visit company offices and/or property locations.
• While performing duties of this job, would occasionally require standing, walking, sitting, reaching with hands and arms, climbing or balancing, stooping or kneeling, talking and hearing, and using fingers and hands to feel objects and tools.
• Must occasionally lift and/or move up to 25 pounds.
• Specific vision abilities required include close vision, distance vision, depth perception, and the ability to adjust focus.

A background check and drug/substance screening are required after a conditional offer. Employment will proceed only upon receiving clear results from both.

ThreatLocker also conducts randomized drug and substance testing approximately every 60 days, in line with the same screening standards.