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ActiveCampaign

Senior Detection Engineer

United States / Full-time

Role brief

What this role is asking for.

On a typical day, you might: Design and deploy sophisticated detection logic across our entire technology stack using detection-as-code principles like YARA-L, Sigma, and KQL. Build automated response workflows that independently enrich, triage, and remediate security alerts, effectively eliminating manual toil through advanced SOAR principles. Investigate complex security signals —such as novel attack patterns or phishing campaigns—that require deep human judgment and strategic intuition. Collaborate cross-functionally with DevOps and Security Engineering teams to adapt detection logic to infrastructure changes before security blind spots can emerge. Leverage AI and LLMs as force multipliers to accelerate threat hunting, generate new detection hypotheses, and automate repetitive investigative tasks. Lead post-incident reviews with engineering partners, transforming security findings into preventative architectural changes that harden our long-term defense. Prototype and test emerging detection capabilities and data sources, ensuring we stay ahead of the threat landscape while participating in an on-call rotation to defend our most critical systems. What is needed: 5+ years of hands-on experience in detection engineering, incident response, or security operations within high-growth technology environments. Advanced programming proficiency in Python , with a proven ability to bu

Company role signals

ActiveCampaign role signals.

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