Senior Threat Detection Engineer

Senior Threat Detection Engineer

JLL empowers you to shape a brighter way. The Senior Threat Detection Engineer at JLL leads the engineering, creation, and tuning of advanced detection capabilities, bridging threat hunting, data engineering, and automation to protect enterprise and cloud-native environments from sophisticated threat actors.

• Design, implement, and tune high‑fidelity detection rules across SIEM, EDR/XDR, and cloud‑native SaaS platforms.
• Manage data pipelines involving centralized logging, data lakes, and detection telemetry.
• Proactively analyze attacker tactics, techniques, and procedures (TTPs) and execute hypothesis‑driven threat hunting campaigns.
• Implement security automations using SOAR platforms and explore AI/ML and large language models (LLMs) to enhance incident response.
• Collaborate closely with SOC, Red Team, and Threat Intelligence to validate signal quality, reduce false positives, and improve MITRE ATT&CK coverage.
• Provide technical guidance and mentorship to junior and mid‑level security engineers.

• 4‑8+ years in cybersecurity with a focus on threat detection, incident response, or SOC operations.
• Bachelor’s degree in Computer Science, Information Security, Cybersecurity, or a related quantitative field.
• Experience developing automation solutions for cybersecurity.
• Proficiency with CI/CD tools such as Git Hub Actions for automated build, test, and deployment.
• Familiarity with infrastructure‑as‑code tools (Terraform, Cloud Formation).
• Strong verbal and written communication skills.
• Strong organizational and multi‑tasking skills; ability to work in an agile environment.

• Advanced proficiency in detection query languages (KQL, SPL, SQL).
• Scripting and automation in Python or Go.
• Strong knowledge of cloud infrastructures (AWS, Azure) and container environments.

Highly desirable: GIAC, CISSP, or equivalent industry‑recognized certifications.

• 401(k) plan with matching company contributions.
• Comprehensive medical, dental, and vision care.
• Paid parental leave at 100% of salary.
• Paid time off and company holidays.
• Early access to earned wages through Daily Pay.

Remote – Austin, TX;
Chicago, IL;
New York, NY;
San Francisco, CA.
Estimated compensation: $ – $ USD per year.

JLL is an Equal Opportunity Employer and is committed to providing reasonable accommodations to individuals with disabilities.