Senior SIEM & Detection Engineer

Description
Senior SIEM & Detection Engineer (Contract)
Mandatory Shift: 3:00 PM – 11:00 PM EDT
Contract Length: 6 months (extension possible)
Work Model: Remote
Start: ASAP
The goal is to leave the environment cleaner, quieter, and more defensible than it is today.
Why This Role Exists
We are stabilizing and improving a large Microsoft-based detection environment as part of a broader Cyber Defense maturity initiative. Before formalizing long-term documentation and governance, we need to clean up detection quality, reduce noise, and improve confidence in our security signals—especially during after-hours coverage.
This role is Phase 1 of that effort.
What This Person Will Do
This is a Senior , hands-on SIEM / detection engineering role, not an analyst position.
Primary focus areas:
Tune and rationalize alerts in Microsoft Sentinel and Microsoft Defender XDR
Reduce false positives and alert fatigue
Improve signal quality and detection confid...