Access Control & HOA SaaS #NODE-09 RESIDENT PRIV // SECURE

Club Lomas del Pedregal

Private residential community governance platform: clubhouse booking, encrypted QR vehicular access, and gatehouse operations.

Private Intranet // Air-Gapped

[ INTRANET // LOMAS DEL PEDREGAL ]

[ AUDITED PRODUCTION INFRASTRUCTURE ]

ENGINEERING TECHNICAL SPECS

Role / Leadership: Lead Software Architect

Architecture: Progressive Web App + Cryptographic QR Pass Engine + SQLite

Availability / Uptime: 99.99% Gatehouse Availability

Security & Encryption: HMAC-Signed QR Tokens with Expiration (TTL)

Core Web Vitals: LCP: 0.4s | CLS: 0.00 | Gatehouse Scan: < 300ms

Technology Stack:

TypeScriptReactNode.jsQR Code HMACPWA OfflineSQLite

LIGHTHOUSE AUDIT & TECHNICAL TELEMETRY

⚡ Google Lighthouse Certified & Technical SEO

100

Technical SEO

Performance

100

Accessibility

100

Best Practices

LCP (Largest Contentful Paint) 0.4s

FID / TBT (Interactivity) 8ms

CLS (Visual Stability) 0.00

TTFB (Server Response) 40ms

Crawling Compliance & Structured Data: Validated JSON-LD Schema.org, high-resolution Open Graph meta tags, WebP/AVIF asset compression, and audited sub-second delivery for Googlebot and GEO AI search engines.

ARCHITECTURAL CHALLENGES & ENGINEERING DECISIONS

1. The Challenge

Preventing vehicular gate congestion during morning peak hours without relying on slow external internet database round-trips.

2. Technical Solution

Cryptographically signed HMAC QR visitor passes validated locally on gatehouse barcode scanners with zero network latency.

3. Measured Impact

Vehicle entry time reduced from 45 seconds to 3 seconds per car, eliminating morning residential bottlenecks.

OPERATIONAL SYSTEM SCREENSHOTS

> Clubhouse Booking Hub

> Encrypted QR Pass Engine

> Security Guard Dispatch

Interested in evaluating the source code or architecture of this system?

Available for technical interviews, distributed software architecture consulting, and senior engineering roles.

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