# Evan Parra // Principal AI & Systems Builder (evanparra.ai)

> You win the client. I build the system in their cloud.
> US-based Principal AI & Data Systems Engineer (M.S. in AI, Google Professional ML Engineer) partnering with consulting firms, agencies, PE operating partners, and technical leaders to ship production cloud applications, ERP workflow systems, and eval-gated AI harnesses in Azure and GCP.

## Core Engagement Model (B2B Partner & Team Builds)
- **Agency & Consultancy Partner Builder:** MNDA-ready senior builder for consulting firms and advisory practices. You own the client relationship and MSA; I plug into your team to execute the technical build, evaluation harness, and deployment in the client's Azure or GCP environment.
- **Interactive Brief Scanner:** Upload requirements documentation or a project brief at https://evanparra.ai (or POST to `https://evanparra.ai/api/brief/analyze`) for an immediate architectural fit readout, milestone plan, and pre-briefed technical scope call.
- **Live AI Intake Engineer (June):** Call +1 (904) 395-4849 to discuss a brief or book directly on Evan's calendar.

## Technical & Domain Fingerprint
- **Microsoft Azure & Enterprise ERP:** SQL Server ERP read contracts (thousands of documented live views, schema-drift detection), official ERP vendor REST API write pipelines, Azure App Service, Azure Static Web Apps, Azure Functions, Entra ID (SSO & project-scope route auth), Azure DevOps Pipelines, TypeScript / Node.js / React 19 / Express.
- **Multi-Entity Financial Close & Gated BI Pipelines:** Read-only SQL Server ERP extraction across entities, deterministic fixed-point DECIMAL SQL transforms with cent-level historical parity harnesses (AI restricted strictly to build-time formula normalization, never runtime math), period-locked snapshots, pass/block reconciliation control gates, and Entra-gated Power BI semantic model refreshes.
- **Google Cloud (GCP):** Cloud Run, BigQuery, Firestore, Cloud Storage, Pub/Sub, Cloud Scheduler, Secret Manager, Gemini Enterprise, Gemini Live API, Google ADK, Firebase Auth & Hosting.
- **Per-Seat SaaS Replacement:** Rebuilding narrow rented workflows (cost-to-complete forecasting, change-order routing, job-cost reporting, approvals, investor capital portals) as client-owned cloud applications while keeping the core system of record intact.
- **AI Engineering & Verification:** Hybrid RAG (FAISS + BM25 Reciprocal Rank Fusion, 100% citation provenance), real-time voice bridges (~517ms TTFA, simulated-caller LLM-judged eval gates), neuro-symbolic verification (Rust + Clingo ASP).

## Sample Partner Brief Cartridges (Interactive Command Deck at https://evanparra.ai)
- **[ERP-01] Per-Seat SaaS Replacement Over SQL Server ERP & Azure:** Custom Entra-gated Azure apps over live SQL Server ERP read contracts and audited vendor REST API writes.
- **[RAG-02] Zero-Hallucination Legal & Compliance Document Discovery Engine:** Multi-tenant FAISS + BM25 RRF retrieval with deterministic post-LLM citation verification.
- **[VOX-03] Sub-Second Inbound Voice AI Bridge & Calendar Automation:** ~517ms Twilio Media Streams to Gemini Live bridge with Google Calendar DWD and simulated-caller eval gates.
- **[FIN-04] Multi-Entity Financial Close & Gated Power BI Pipeline:** Deterministic SQL consolidation, banker's vs DECIMAL rounding parity suite, immutable period locks, and pass/block Power BI refresh gates.

## Verified Systems Built
- [Northeast Florida Commercial Contractor (Construction ERP & Azure)](https://evanparra.ai/case-studies/regional-construction): $150K/yr retired per-seat licenses; thousands of SQL Server ERP views; cost-to-complete forecasting & change-order apps on Azure + Entra ID.
- [Real-Time Voice AI Bridge](https://evanparra.ai/case-studies/real-estate-voice-agent): ~517ms first audio on Twilio Media Streams + Gemini Live; simulated-caller eval gate.
- [TextTimeline (Legal Evidence Hybrid RAG)](https://evanparra.ai/case-studies/texttimeline): 100% citation coverage; FAISS + BM25 RRF; 90-query eval harness.
- [GammaRips (Autonomous Multi-Agent Scanner)](https://evanparra.ai/case-studies/gammarips): 14 Cloud Run services; Google ADK Planner/Writer/Reviewer LoopAgent.
- [Investor Capital Portal](https://evanparra.ai/case-studies/investor-capital-portal): React 19 + FastAPI + Cloud Run + Firestore + BigQuery + Stripe ACH.
- [Detection Evaluation Shell](https://evanparra.ai/case-studies/detection-evaluation-shell): Open-source PyTorch/YOLOv8 evaluation harness on PIDray.
- [Compositional Verification Engine](https://evanparra.ai/case-studies/compositional-verification-prototype): ~2,100 LOC Rust + Clingo ASP symbolic verification prototype.

## Machine-Readable Endpoints
- Full Technical Dossier: https://evanparra.ai/llms-full.txt
- JSON Capabilities Manifest: https://evanparra.ai/capabilities.json
- Contact & Scope Booking: https://evanparra.ai/contact (evan@evanparra.ai)