Senior Threat Detection Engineer - Detection as Code & IR

Cribl; Saint Paul (MN); Remote; USD 150,000 - 210,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Short-term disability

Life insurance

Paid holidays

Paid time off

Fertility treatment benefit

401(k)

Equity

Job summary

Cribl is seeking a senior security engineer to join Team Alpine and own the detection lifecycle. You will design and deploy detections as code in a GitOps workflow and map them to MITRE ATT&CK across cloud and on-prem sources.

You will lead threat hunts, participate in incident response rotations, and collaborate with IT, Legal, Product Security to strengthen telemetry pipelines and SIEM coverage. Strong coding and detection skills required.

Qualifications

• 5+ years in security operations, with hands-on time in detection engineering, threat hunting, or incident response.
• Experience writing and maintaining detections as code in a modern SIEM.
• Strong Python skills and comfort with Git-based workflows, code review, and CI/CD.
• Strong in KQL for writing detection queries.
• Working knowledge of MITRE ATT&CK and how to use it for coverage analysis, not just labeling.
• Experience investigating incidents in cloud (AWS, GCP, and/or Azure), SaaS, and identity providers.
• Hands-on experience with log pipelines: getting data in, parsing it, and fixing it when it breaks.

Responsibilities

• Design, build, test, and tune detections as code (KQL) through a GitOps workflow: issue, pull request, unit and back-testing, then automated deployment.
• Map detections to MITRE ATT&CK, find coverage gaps, and decide where to invest next based on our threat model.
• Review new community and vendor rule releases, such as Sigma, and decide what to adopt, adapt, or skip.
• Cut alert noise by tuning, retiring rules that no longer earn their place, and tracking detection quality metrics.
• Plan and run hypothesis-driven hunts across cloud, SaaS, identity, endpoint, and corporate infrastructure telemetry.
• Use adversary emulation to generate test events for detections that have nothing to fire on yet.
• Turn hunt findings into durable detections, documentation, and backlog items.
• Take part in the IR rotation: triage, scope, contain, and investigate security incidents from first alert to closure.
• Run retrospectives and turn the lessons into new detections, playbook updates, and fixes to visibility gaps.
• Write and maintain runbooks so others on the team can respond consistently.
• Assist in ownership of the health of security log flow and data pipelines.

Skills

Python

KQL

Git

CI/CD

Threat hunting

Incident response

Detections as code

MITRE ATT&CK

AWS/GCP/Azure

Log pipelines

Tools

Cribl Stream

Sigma rules

SIEM

GitHub Actions

Job description

Cribl is seeking a senior security engineer to join Team Alpine and own the detection lifecycle. You will design and deploy detections as code in a GitOps workflow and map them to MITRE ATT&CK across cloud and on-prem sources.

You will lead threat hunts, participate in incident response rotations, and collaborate with IT, Legal, Product Security to strengthen telemetry pipelines and SIEM coverage. Strong coding and detection skills required.