# Senior Security Engineer (Detection & Response)

**Company:** [Justworks](https://hotfix.jobs/companies/justworks)
**Location:** New York, NY
**Role:** Security Engineering
**Salary:** $168k – $235k/yr
**Experience:** 5+ years
**Skills:** Edr, AWS, Cloudtrail, Guardduty, IAM, Vpc Flow Logs, AWS Lambda, Threat Hunting, Incident Response, Detection Engineering, AI/ML, Automation, SIEM
**Posted:** 2026-04-29

> Builds, tunes, and deploys security detections using EDR and AWS telemetry, conducts threat hunting, leads incident response, and automates workflows. Requires 5+ years in detection engineering, threat hunting, and AWS security services proficiency.

## Job Description

## Responsibilities
- Build, tune, and deploy high-quality detections across our platform
- Develop and refine detections using telemetry from EDR, threat intel, endpoint & cloud posture platforms and native AWS cloud services
- Conduct proactive threat hunting to uncover threat actor behaviors and detection gaps
- Lead security event & incident handling, including triage, investigation, containment guidance, and post-incident improvements
- Build automation and tooling to reduce manual effort and improve detection accuracy
- Drive process improvements across detection engineering, incident response, and telemetry workflows
- Collaborate with Engineering to ensure high-quality logging and visibility across AWS environments
- Explore and prototype AI-assisted detection and response capabilities
- Contribute to internal playbooks, documentation, and detection engineering best practices
- Design and conduct table-top exercises to validate readiness and strengthen response processes
- Participate in an on-call rotation

## Qualifications
- 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

## Compensation
Base wage range: **$167,500 - $235,000** annually

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