SeanMiller

AI-Powered, Insights-Driven Products

Hands-on applications demonstrating agentic AI, LLM orchestration, RAG architectures, and modern ML infrastructure. Built with production-grade security, governance frameworks, and enterprise-ready patterns.

Criterix logo

Criterix

AI-Powered Resume Optimization

Local-first web application that transforms resume tailoring through conversational AI. Features an AI biographer that surfaces forgotten high-impact work and provides intelligent resume optimization tailored to specific job requirements.

  • Conversational AI biographer with multi-mode chat (Interview, Gap Analysis, Career Coach)
  • Gemini-powered RAG retrieval with semantic search and context-aware prompting
  • Probe-based profile enrichment with automatic project/skill extraction
  • Prompt-as-Code governance framework with version control and regression testing
Next.js TypeScript Gemini API IndexedDB Google Docs API
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CronAuth

Secure 2FA + Secret Vault

Privacy-first authenticator app with integrated secret management vault. Built with Flutter for cross-platform support, featuring enterprise-grade encryption and offline-first architecture.

  • AES-256 encryption with PBKDF2 key derivation and platform-native secure storage
  • Cross-platform security architecture (iOS, macOS, Android) with biometric auth
  • TOTP code generation with RFC 6238 compliance and custom periods
  • Comprehensive secret vault supporting passwords, API keys, recovery codes, and secure notes
Flutter Dart AES-256 PBKDF2 Biometrics
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Thrifty Trip

AI-Powered Inventory Management

Mobile-first inventory management platform for fashion resellers with integrated AI assistant. Combines comprehensive inventory tracking with semantic search, AI-powered pricing, and conversational analytics.

  • Trippy AI assistant with streaming responses, grounding, and thinking modes
  • Semantic search via Supabase Edge Functions with embeddings and hybrid retrieval
  • Multi-agent AI features for price suggestions, listing evaluations, and metadata generation
  • Edge Function orchestration for batch processing and AI cost tracking
Flutter Supabase Gemini API PostgreSQL Edge Functions
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Witten

Local-First AI Chat Client

Desktop Flutter app that stores conversations as .chat JSON files in a user-chosen folder tree. Provides LLM provider abstraction layer and file-based context management for project-organized AI conversations.

  • File-backed conversation storage with version control and Git-friendly format
  • LLM provider abstraction layer supporting Firebase Vertex AI with extensible architecture
  • Context-aware prompting with folder tree organization and workspace management
  • Local-first architecture with zero cloud dependencies and complete data ownership
Flutter Dart Firebase AI SDK Gemini API File System

Let's Build Enterprise AI Together

Interested in architecting agentic AI systems, LLM orchestration platforms, or discussing AI/ML infrastructure?