Niceville, FL • LinkedIn • GitHub Enterprise • Email: whall4.wh@gmail.com

Principal Cloud & AI Architect, DevSecOps Lead, and Technical Leader with over 20 years of experience transitioning high-stakes operational leadership into architecting resilient, multi-cloud enterprise lakehouse environments and zero-trust microservice meshes across AWS, GCP, Databricks, and Kubernetes.

Veteran U.S. Army Special Forces Intelligence Sergeant (18F) and Team Sergeant (18Z) combining elite operational discipline with deep technical execution in high-throughput PySpark data pipelines, Delta Lake Medallion architectures, modular Terraform IaC, Istio strict mTLS zero-trust meshes, and automated CI/CD governance.

flowchart TD
    subgraph MultiCloudIaC ["1. Multi-Cloud IaC & GitOps (Terraform + Helm 3)"]
        TF["Terraform Modular IaC<br/>(AWS S3/KMS/IAM + Databricks + GCP)"]
        Helm["Helm 3 Chart Suite<br/>values-dev | values-staging | values-prod"]
        Istio["Istio Service Mesh<br/>Strict mTLS + Ingress Gateway + Canary 90/10"]
        TF --> Helm --> Istio
    end

    subgraph LakehouseEngine ["2. Distributed Lakehouse & Telemetry (PySpark + Delta Lake)"]
        Bronze["Bronze Layer<br/>High-Throughput Raw Ingestion (3,200+ Reqs/Sensors)"]
        Silver["Silver Layer<br/>SCD-2 Normalization & Quality Gate (0-100%)"]
        Gold["Gold Layer<br/>Longitudinal Trends & Anomaly Registers"]
        Bronze --> Silver --> Gold
    end

    subgraph RemediationEngine ["3. Defense Zero-Trust & FinOps Operator"]
        OPA["OPA / Rego Zero-Trust Gate<br/>Non-Root UID 10001 / ReadOnlyRootFS"]
        Operator["Cloud Asset Lifecycle Operator<br/>TLS Renewal & FinOps Orphan Scanner"]
        Audit["Structured Security Dossiers & Infracost PR Diff"]
        OPA --> Operator --> Audit
    end

    subgraph ControlPlanes ["4. Serverless Control Planes & Interactive Dashboards"]
        Pages["Live GitHub Pages Analytics<br/>Ghost Job Engine & UAP Radar"]
        DBX["Databricks Apps (fys-matching-app)<br/>Serverless Compute ($0 Idle Run-Rate)"]
        Streamlit["Streamlit Live Operations Gateway"]
        Gold --> Pages & DBX & Streamlit
    end

• Target Audience: BMW Manufacturing, Michelin, GE Vernova, industrial IoT platform teams.
• Core Problem: Ingest high-throughput sensor telemetry, process micro-batches, and automate industrial anomaly detection.
• Key Innovations:
  • Automated Data Quality Gate: Evaluates schema conformance, range validity, and temporal clock drift, scoring records 0–100% and routing malformed records to a quarantine DLQ before Silver promotion.
  • ISO 10816 Vibration Anomaly Engine: Real-time statistical detector identifying bearing cavitation and thermal runaway across AMR robotics, curing presses, and HA gas turbines.
  • Nightly Automated Ingestion: Scheduled GitHub Actions workflow injecting synthetic telemetry batches nightly at 02:00 UTC.
  • 2-Minute LocalStack Sandbox: Reproducible local execution via make init, make test, and make run-local.

• Target Audience: HII Mission Technologies, Nightwing, defense industrial base contractors, enterprise FinTech.
• Core Problem: Provision hardened Kubernetes / ECS clusters conforming to CIS Benchmarks and DoD DevSecOps zero-trust gates.
• Key Innovations:
  • Hardened Terraform Landing Zone: KMS envelope encryption for Kubernetes secrets, private-only control plane, IMDSv2 enforced, and encrypted VPC Flow Logs.
  • Open Policy Agent (OPA / Rego): Zero-trust admission constraints enforcing unprivileged non-root execution (UID 10001), read-only root filesystems, and strict CPU/memory limits.
  • The 4-Chamber Gunslinger Pipeline: Multi-gate CI/CD workflow executing SAST, Trivy container scans, Checkov IaC audits, Infracost PR cost diffs, and automated SBOM generation.

• Target Audience: Infrastructure & Platform Engineering teams (World Acceptance, TD SYNNEX).
• Core Problem: Continuous proactive auditing of expiring TLS certificates, orphaned cloud resources, and dormant IAM secrets.
• Key Innovations:
  • Proactive TLS/SSL Discovery: Scans ACM certificates and external endpoints, grading expiration urgency (CRITICAL <14d, EXPIRING_SOON <30d, EXPIRED).
  • Orphaned Cloud Asset FinOps Scanner: Detects unattached EBS volumes, idle Elastic IPs, and stale NAT gateways with automated monthly/annual financial waste calculation.
  • IAM Secret Hygiene Analyzer: Identifies access keys older than 90 days and missing MFA credentials.
  • Cross-Platform CLI (cert-guard): Single-binary distribution with Rich terminal tables and JSON/CSV dossier exports.

• Core Problem: Uncover phantom job postings, algorithmic repost loops, and hiring velocity across 3,200+ active enterprise requisitions with a special focus on the Greenville, SC Top 10 Tech Hub.
• Key Innovations:
  • Databricks Multi-Year Longitudinal Trends (2022–2026): Tracks quarterly hiring velocity recovery across aerospace defense, automotive EV manufacturing, and clinical health tech.
  • Statistical Validity Threshold ($N \ge 30$): Enforces rigorous sample size checks before assigning risk tiers (HEALTHY <25%, ELEVATED 25-44%, CRITICAL ≥45%).
  • Interactive Web Visualizer: Requisition drilldown modals, department stale progress bars, Leaflet geospatial hub radar map, and one-click executive audit CSV exports.

• Core Problem: Unify fragmented aerial sensor feeds and historical sighting archives from 1480 BC to Present.
• Key Innovations:
  • Chronological Timeline & Historical Context: Compares ancient sightings with major historical milestones (Battle of Megiddo, Colosseum construction, Rosetta Stone, Roswell 1947).
  • Lakehouse Medallion Pipeline: Ingests 1,026+ global records with full coordinate geocoding, hover tooltips, and shape taxonomy analytics.

• Email: whall4.wh@gmail.com
• LinkedIn: linkedin.com/in/william-free-hall
• GitHub Enterprise: github.com/For-Your-Service