Senior Security Engineer (Detection & Response)

Justworks is looking for an experienced security engineer skilled in detection and response to enhance and mature Justworks' Security. As a Senior Detection Engineer, you'll design, build, and maintain the detection logic that powers our platform, conduct proactive threat hunting, and drive continuous improvements across our detection and incident handling workflows.

Requirements

• 5+ years of hands-on experience in detection engineering, threat hunting, security event analysis, and incident response
• Strong understanding of attacker behaviors, malware techniques, and modern threat landscapes
• Hands-on experience with EDR platforms (event analysis, detections, hunting)
• Proficiency with AWS security and logging services (CloudTrail, GuardDuty, IAM, VPC Flow Logs, Lambda, etc.)
• Experience designing and conducting attack & defend (table-top) exercises
• Demonstrated ability to improve processes, reduce friction, and automate repetitive tasks
• Interest in how AI/ML can enhance detection, hunting, and response workflows
• Strong communication skills and comfort working cross-functionally in a fast-paced environment

Benefits

• Great benefits
• Wellness program offerings
• Company retreats
• Total Rewards @ Justworks