Founder & Full-Stack Engineer
Jan
Hubal
3 years building distributed real-time systems, AI-powered mobile apps, and revenue-generating SaaS. Founded three projects solo — including RigRadar, a live autonomous hardware intelligence platform.
Current focus
01
TappedIN
TappedIN system architecture
02
Search layer
Two-Tier Engine
Cost-scaled search pipeline — free tag tier for all merchants, paid vector tier for Shopify stores needing ranked product results.
Query
→
Vibe Cache (pgvector)
→
Gemini Judge
→
Tag / Ranked Results
Tag TierQuery → vibe tags served to merchant's own catalog filter. ~$0/merchant, inventory always fresh
Vector TierEmbeds store catalog into Neon pgvector (HNSW index), ranks real product IDs by cosine similarity — paid opt-in only
Cache Walk5-step cheap → expensive pipeline: negative cache → exact DB hit → trigram fuzzy → Gemini judge → Gemini extract. AI only fires on genuinely new vibes
AI & data stack
RAG + LangGraph Agent
Self-correcting merchant onboarding agent built as a LangGraph state machine — retrieves, synthesises and hallucination-grades answers against internal docs.
Retrieve
→
Synthesise
→
Grade
ModelsGemini 2.5 Flash (judge + extract + agent), text-embedding-004 768-dim (pgvector columns)
StorageNeon Postgres + pgvector — vibe_cache, store_products, documentation tables with HNSW cosine indexes. Scale-to-zero via pooler URL
Ingestion & sync
Multi-Platform Catalog Pipeline
Shopify webhooks (HMAC-verified) and WooCommerce feed sync keep vector-tier catalogs current. Content-hash diffing skips unchanged products — re-syncing a full unchanged catalog costs ~nothing.
RigradarAI
RigRadarAI system architecture
02
Core layer
The Engine
Distributed scraping & parsing infrastructure powering autonomous hardware market intelligence.
Python Daemon
→
API Gateway (Node.js/Vercel)
→
DOM Parser
→
Redis Data Store
ArchitectureDistributed multi-threaded workers with synchronous job queues, coordinated via Redis
DOM StrategyCustom per-retailer parsing pipeline with store-specific CSS selectors and JSON-LD extraction across 13+ retailers
Bot ProtectionIntegrated ScraperAPI for bot-detection bypass and adaptive JS-render fallback, with circuit breakers and adaptive retry logic
Revenue stack
Unit Economics
Dual-pipeline monetisation — B2C subscriptions and B2B affiliate infrastructure running in parallel.
B2C · Stripe
Full-cycle subscription API — checkout, webhooks, cancellation & billing portal
B2B · Amazon / eBay
Automated affiliate pipelines with dynamic link injection & commission tracking
Security boundary
Proprietary IP Protection
Custom scraping logic and request-routing topology maintained in private, access-controlled repositories — intentionally excluded from public exposure.
Experience & certifications
03
Nov 2025 — Present
Founder & Lead Architect
RigRadarAI
Architected and scaled an autonomous hardware deal-scraping SaaS. Full product ownership across backend infrastructure, scraping systems, and dual-revenue billing pipelines. 1000+ commits across private repositories.
Dec 2025 — Present
Founder & Lead Engineer
TappedIN
Cross-platform discovery platform leveraging Computer Vision pipelines
Real-time aggregation with marketplace integrations
Jan 2023 — Jun 2025
Founder & Lead Full-Stack Developer
Sylenar
Built a WordPress page-builder plugin replacing Elementor — MS Paint-style drag-and-drop canvas enabling non-technical users to design websites without code or obscure abstractions
2022 — 2025
Web Developer & Network Analyst
Oresi, Netmate, NoReason
Corporate web solutions and IT infrastructure. CMS deployments, UI/UX heatmapping, LAN network analysis using Wireshark for multi-TB traffic capture.
Certifications
AI & Governance2025
Advanced AI Implementation & Automation
NetMate CZ — ChatGPT automation, AI agents, secure enterprise deployment.
Languages2025
B2 First (FCE) Professional English
Cambridge Assessment — Score 168.
Frontend2024
Frontend Development & CMS Architecture
Skillmea — JavaScript, HTML, CSS, WordPress.
Network2023
Packet Analysis & Network Forensics
SŠMG — Wireshark-based multi-TB traffic analysis.
Education
Unicorn University
SŠMG
Technology stack
04
Frontend
JavaScript
TypeScript
React
Next.js
React Native / Expo
Tailwind CSS
HTML5 / CSS3
Figma
Backend
Python
Node.js
FastAPI
Redis
Distributed Systems
MySQL
PHP
Java
APIs & Protocols
REST
Stripe API
Pusher
Resend
AI & ML
LangChain
LangGraph
LangFuse
LangSmith
RAG
Google AI Studio
OpenAI API
Tooling
Git
Linux / Unix shell
Wireshark
● Primary
● Proficient
● Proficient
2026 — Intelligent systems & products
05
About the project
RAG & Multi-Agent Chatbot
Full-stack AI agent platform built to learn and demonstrate production LLM patterns. Features a Retrieval-Augmented Generation pipeline over custom documents and a LangGraph multi-agent workflow with intelligent routing between specialized agents. Monitored with LangSmith for cost and latency tracing.
RigRadar Logic Demo
Hardware Price Tracker — Core Mechanics
2025 — Architecture & systems
06
Sylenar
MS Paint-to-HTML DOM Builder
About the project
Sylenar
A WordPress page-builder plugin built to replace Elementor — featuring an MS Paint-style drag-and-drop canvas that lets non-technical users design websites visually without touching code or wrestling with obscure abstractions. The visual editor is written in vanilla JavaScript with real-time DOM manipulation and in-memory state management; the plugin layer is PHP wired into WordPress's hook and filter system for seamless core integration. Delivered as a complete, shippable plugin: database migrations, option storage, custom post types, and the full publish workflow.
NoReason s.r.o.
Full ICT Corporate Presentation
Booking System
Reservation Calendar Frontend
Logomanual
Interactive Brand Guidelines
2024 — UI/UX & data analytics
07
KVĚT Floristry
From charcoal sketch to digital architecture
Network Analysis
Terabyte Metadata
Advanced network architecture assessment using Deep Packet Inspection. Optimizing LAN protocols and enforcing Zero-Trust security across complex hybrid environments.
Full project scope
2023 — Agency foundations & game dev
08
Netmate
4 years B2B contracting
Torghast
Custom 2D Java engine — built at 16