Senior Security Engineer (Elastic SIEM)

TL;DR

Senior Security Engineer (Elastic SIEM): Building and optimizing scalable detection pipelines and improving telemetry quality with an accent on Detection-as-Code and SIEM platform optimization. Focus on developing high-confidence detections, automating workflows with CI/CD, and mapping coverage to MITRE ATT&CK.

Location: Burlington, MA, USA

Salary: $123,000–$180,000

Company

A global leader in cyber protection providing an AI-powered integrated platform that unifies operations management, cybersecurity, and data protection.

What you will do

• Own and optimize the Elastic Security platform, including Elasticsearch, Kibana, Fleet, Logstash, and Elastic Agents.
• Design and maintain ingestion pipelines for cloud, endpoint, network, and application telemetry.
• Build and maintain a Detection-as-Code pipeline utilizing Git-based workflows and CI/CD automation.
• Develop and tune high-fidelity detections using EQL and KQL, mapping them to the MITRE ATT&CK framework.
• Serve as a Tier 2 escalation point for complex security events, performing initial scoping and containment.
• Collaborate with infrastructure and DevSecOps teams to enhance logging and overall visibility.

Requirements

• 5+ years of cybersecurity engineering experience.
• 3+ years of experience in SIEM engineering, detection engineering, or security analytics.
• Strong hands-on expertise with Elastic Security and the Elastic Stack.
• Experience implementing Detection-as-Code workflows via Git and CI/CD pipelines.
• Proficiency in Python and/or PowerShell scripting.
• Experience with AWS CloudTrail, VPC Flow Logs, and general TCP/IP and DNS attack patterns.

Nice to have

• SOAR playbook development and automated response workflows.
• Sigma rule development.
• Familiarity with the Elastic detection-rules ecosystem.
• Experience with Terraform or Ansible.
• Background in SOC or Incident Response.

Culture & Benefits

• Comprehensive medical, dental, and vision insurance.
• 401(k) retirement plan with company match.
• Flexible spending accounts (FSA).
• Disability and life insurance.
• Generous vacation policy.
• Innovative, high-growth environment focused on accountability and impact.