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// ENGINEERING ARCHIVE

SELECTED systems & WORK.

Full-stack applications, operational systems, and practical automation workflows. Built with clean architecture, reliable data handoffs, and solutions engineered around actual business needs.

01 // Full-Stack Web
In Business Use (2026)
TrackStock logo and wordmark — project brand cover

TrackStock

Inventory and branch operations, connected from daily counts to delivery receipts.

ARCHITECTURAL BLUEPRINT

Next.js / React interface → authenticated server routes → Supabase PostgreSQL commands → inventory and audit records → HQ and branch views.

KEY HIGHLIGHTS
  • Solo-built and used in business operations
  • Connected HQ and branch inventory workflows
  • Recorded demo and actual app screenshots available
Next.jsReactTypeScriptSupabasePostgreSQL
02 // Web & Automation
Portfolio Demo (2026)
Sulyap Dental Studio — website hero interface capture
Live hero capture · Demo records

Sulyap Dental Studio

A clinic website, appointment booking, and staff operations in one Camyx demo.

ARCHITECTURAL BLUEPRINT

Public website and booking forms → Django scheduling rules → PostgreSQL appointments → staff dashboard and background jobs → n8n integration / local email demonstration.

KEY HIGHLIGHTS
  • Backend and automation developed by me
  • Frontend design contributions with Camyx
  • Fictional clinic with synthetic demonstration records
PythonDjangoPostgreSQLhtmxn8nMailpit
03 // Web & Automation
Portfolio Demo (2026)
Campaign Brief Studio logo and wordmark — project brand cover

Campaign Brief Studio

A local AI automation demo turning structured business briefs into campaign drafts for human review.

ARCHITECTURAL BLUEPRINT

Next.js loopback interface → transactional SQLite store → decoupled n8n webhook workflow → Groq LLM completion → callback receipt → human review decision.

KEY HIGHLIGHTS
  • Local AI automation demo with importable n8n workflow
  • Transactional SQLite persistence with full revision history
  • Strict human-in-the-loop review lifecycle & idempotency keys
Next.jsTypeScriptSQLiten8nGroqDocker
04 // Mobile & Local AI
Portfolio Demo (2026)
ReVoice logo and wordmark — project brand cover

ReVoice

Offline captions, speaker diarization, and conversation intelligence powered entirely by on-device AI.

ARCHITECTURAL BLUEPRINT

Microphone audio stream → native on-device audio buffer → Moonshine Voice STT → Flutter transcript UI → Qwen2.5 on-device LLM via llama.cpp → local session summary & Q&A.

KEY HIGHLIGHTS
  • AppBuildersPH Hackathon 2026 participant (Team LarpCode)
  • Zero cloud dependency: 100% offline transcription & conversation intelligence
  • Android native development contribution; Flutter UI with on-device llama.cpp
Android NativeFlutterKotlinSwiftllama.cppQwen2.5
CUSTOM ARCHITECTURE & AUTOMATION

Have a complex pipeline or application to engineer?

From autonomous multi-agent triage to low-latency edge deployments, I build systems that scale reliably without manual maintenance headaches.