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⟩ Blue Team Operations
DETECTION AS CODE

SIEM Engineering

Designed scalable log pipelines and high-fidelity detections.

What I deliver

  • Parser & normalization design
  • Use-case backlog management
  • Noise reduction & alert tuning
⟩ real-world projects

Selected engagements

Sanitized highlights from real client work — approach, the bug we found, and the fix shipped. Names redacted under NDA.

01

Detection-as-code pipeline on GitOps — 180 Sigma rules tested via Atomic Red Team in CI

02

Alert tuning sprint — false positives reduced 78% over 6 weeks for telco SOC

⟩ common vulnerabilities & how I find them

Top bugs I hunt — and the steps

The recurring weaknesses I see in this domain, with the repeatable workflow I run from discovery to fix.

01

Parser Drift / Field Mismapping

Medium
  1. STEP 1Compare ingest sample vs CIM / ECS schema
  2. STEP 2Identify dropped or coerced fields breaking detections
  3. STEP 3Patch parser + add unit tests in CI
  4. STEP 4Backfill index-time fixes where critical
02

Noisy Detection Rule

Low
  1. STEP 1Calculate 30-day precision per rule
  2. STEP 2Add allow-list (vuln scanners, jump hosts, service accounts)
  3. STEP 3Convert to anomaly threshold or correlation
  4. STEP 4Document tuning + re-test with Atomic Red Team
03

Detection Blind Spot in Cloud-Native Services

High
  1. STEP 1Inventory managed services (Lambda, Functions, Cloud Run) and confirm log export is actually enabled
  2. STEP 2Check for sampled or truncated logging on high-volume serverless invocations
  3. STEP 3Validate detections exist for the cloud-native equivalents of on-prem techniques (e.g. IAM instead of AD)
  4. STEP 4Fix: enforce logging-on-by-default via policy-as-code, alert on services with no log sink configured
⟩ arsenal

Tools & frameworks

Splunk
SIEM Platform
Sentinel
Cloud SIEM
Chronicle
Cloud SIEM
ELK
Log Analytics
Graylog
Log Management
Sigma
Detection Rules
Wazuh
Open-Source XDR
Cribl
Security Tool
Kafka
Security Tool
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