I have no special talent. I am only passionately curious.
— Albert Einstein

I build systems that run themselves.

20+ years in hardware — concept through manufacturing and commercialization — layered with modern software: live algorithmic trading, iOS + BLE reverse engineering, public data dashboards, and AI-agent automation. Shipped, running, verifiable.

See the work → Hire About me

Let me scale your business — overnight.

20+
Years in engineering & product dev
$1.4M+
Sales · 3G Global Holdings & 3GRAMS™
$10M+
Manufacturing account management experience
8
Production software systems
13+
Live data integrations
21K+
Instagram followers (@jrgramsdev)
Projects

Twelve systems, all running live.

Each one built end-to-end — backend, data integration, risk controls, UI. Not demos. Real infrastructure that trades real money, tracks real filings, ships to real users, and sells real products.

Levels Smoke Shop storefront redesign
Levels Smoke Shop
Client · Shopify theme
E-commerce redesign & custom Shopify theme

Full storefront redesign for a West Palm Beach glass & smoke shop — a standalone multi-page demo plus a production custom Shopify Online Store 2.0 theme (Dawn-based) that drops onto the live store and renders its 284-product catalog automatically. Category filtering & sort, product detail pages, a slide-out AJAX cart, navigation that auto-follows the store's menu, 21+ compliance gate, and a responsive mobile UI. Validated with Shopify Theme Check; one-click product-import CSV included.

Shopify Liquid OS 2.0 theme AJAX Cart API Theme Check
Data pulse waveform
TeslaPulse
Public · Open Source
Public Tesla operating-signals dashboard

Open-source data dashboard tracking Tesla execution across 20+ live signals: Supercharger network, quarterly deliveries, FSD miles, NHTSA recalls, SEC EDGAR filings, FCC filings, Megapack, trademarks, VIN decoder, cross-EV comparison, Elon Form 4 holdings parsed from live XML, and a composite 0–100 Velocity Index. Every number cites its source. Shipped as 35 commits in a single 4.5-hour session.

Node.js Express SQLite launchd cron vanilla JS
Tactical radar visualization
KING50 Defense
Demonstrator
Aerospace tactical dashboard

Real-time tactical dashboard demonstrator for aerospace & defense. 2D radar canvas with 360° sweep, range rings, and threat blips. Simulated fighter telemetry across F-35, F-16, Su-57, J-20, and Gripen platforms with pilot biometric monitoring (heart rate, stress, alertness). Threat-archetype profiling layer and three-tier engagement controls (lock / track / engage) for human-operator decision support. WebSocket broadcast, Apple-design frontend.

Node.js Express WebSocket Canvas 2D Threat profiling
Algorithmic trading chart
KING50 Finance
Live
Behavioral-signal crypto trading engine

Production algorithmic trading on Binance.US. Multi-indicator fusion across RSI / EMA / BB / MACD / VWAP, ATR-adaptive TP/SL, OCO order management, Kelly-aware sizing. Kill-switch risk engine with daily-loss caps, per-loss cooldowns, rolling-drawdown lockouts, and credential-hygiene discipline (nothing logged). Live micro-mode real-money execution since April 2026.

Node.js WebSocket Binance.US API SQLite Prometheus
iOS app with BLE signal rings
PYRA
iOS · Beta
Independent BLE controller for Puffco hardware

Native iOS + Mac Catalyst app built in SwiftUI. Reverse-engineered the AeroFrame BLE protocol (SHA-256 challenge-response over GATT) to build a fully independent controller for the Puffco Peak Pro / Proxy / Opal line. FaceID lock, voice commands via SFSpeech, background BLE mode, cinematic HUD with telemetry strip and concentric rings. TestFlight-ready, bundle io.pyra.blecontroller.

SwiftUI Core Bluetooth Mac Catalyst SFSpeech FaceID
Speech bubble inside protective shield
Ellaverse
In Build · Phase 1 Shipped
Safe AI companion for kids — regulated-environment design

Per-child AI companion with parent-configured age bands (5–8, 9–12, 13–17) and a three-layer safety stack: homoglyph-normalized regex classifier → Claude-Haiku LLM input classifier → output verifier with fail-closed crisis fallback. PBKDF2-SHA256 parent PIN, per-profile rate limiting, alert dedup, sanitized error paths. Designed from day one around COPPA + state minor-safety law — same regulated-environment mindset that translates to ITAR / AS9100 work.

FastAPI Anthropic Claude SQLite (WAL) PBKDF2 COPPA-aware
Probability curve and outcome bars
Kalshi Observer
Paper · Pre-Live
CFTC-regulated prediction-market trader

US-legal prediction market trading infrastructure. Scans ~11,000 live markets per cycle. RSA-PSS + SHA-256 signed auth with keys held in closure (never logged). Cross-references Kalshi weather markets against live NOAA GFS forecasts for model-shift signals. Signal confidence scorer grades every market 0–100. Double-lock live-executor — dry-run by default, requires explicit acknowledgment string to route real orders.

Node.js RSA-PSS NOAA GFS Kalshi REST
Binary market price indicator
Polyclaw Observer
Paper
Polymarket signal intelligence layer

Read-only Polymarket observer evaluating whether behavioral-signal trading produces real edge on binary event markets. Gamma API integration, Kelly-sized paper positions, per-signal-slot isolation (so short-horizon signals aren't monopolized by long-horizon ones), drawdown lockouts, 1,600+ positions tracked across DURATION_NO, MOMENTUM_FADE, LOCAL_EXTREME, DRAMA_FADE, CRYPTO_LAG. EIP-712 CLOB order specs scaffolded for future go-live.

Node.js Polymarket Gamma EIP-712 Kelly sizing
3G Global Holdings brand mark
3G Global Holdings & 3GRAMS™
Brand · In market
Consumer hardware, direct-to-consumer e-commerce

Founded 2020. $1.4M+ in proprietary hardware sales through direct-to-consumer execution. Six manufacturing partners worldwide capable of full IoT product development. Under development: autonomous Instagram growth stack on Meta Graph API — content generation, scheduling, analytics, engagement automation — managed from a Next.js + TypeScript operations dashboard.

Product dev Overseas manufacturing Shopify Next.js Meta Graph API
Instagram automation node graph
3GRAMS Social Engine
In Build
Autonomous Instagram growth & content automation

Self-running Instagram growth stack for the 3GRAMS brand (@3.grams) on the Meta Graph API — AI content generation, scheduling, auto-posting, analytics, and engagement automation, driven from a Next.js + TypeScript operations dashboard and wired to the Shopify catalog. Built to run the brand’s largest channel hands-off.

Next.js TypeScript Meta Graph API Node.js Shopify
Saddle Stories kids horseback-riding site
Saddle Stories
Live demo
Kids’ learn-to-ride site — built with my daughter

A playful, kid-safe horseback-riding site built hand-in-hand with my 8-year-old: a breed encyclopedia, horse facts, an interactive quiz, a “dream horse” builder, and a rider journal — all client-side, no tracking, no logins. Multi-page vanilla HTML/CSS/JS on a custom illustrated design system. Range beyond the trading-and-defense work.

HTML CSS vanilla JS localStorage Responsive
joshuagrams.com portfolio site
joshuagrams.com
Live · you’re on it
This site — hand-coded portfolio + encrypted resume

The site you’re reading: a hand-built single-page portfolio with an Apple-inspired dark design system, scroll-reveal animations, and a client-side AES-256-GCM / PBKDF2 password-gated resume decrypted entirely in-browser — no backend. Shipped on Cloudflare Pages with a custom domain. No framework, no build step.

HTML/CSS/JS Web Crypto API AES-256-GCM Cloudflare Pages
About

Builder. Operator. Shipper.

I've been building hardware for 20+ years. Concept through CAD, through prototyping, through overseas manufacturing and commercialization. Founded 3G Global Holdings & 3GRAMS™ in 2020 and scaled it past $1.4M in sales on proprietary product design. Before that — and during — I led product development at STIIIZY / Shryne Group, managing $10M+ manufacturing accounts at a $1.6B company, with factory partners in China and patent / trademark support on the IP side.

The last few years I've layered on software and AI. Most of what's on this site is live — executing real orders, polling real APIs, writing to real logs. Full-stack across Node.js, SwiftUI, Next.js, Python. I built autonomous AI agent and sub-agent systems to automate workflows and accelerate execution, which is the thread that connects the hardware and software work.

I like problems at the edges: design for manufacturability and reverse engineering to avoid IP conflict; BLE protocol reverse engineering with SHA-256 challenge-response for PYRA; cryptographic auth (RSA-PSS signed Kalshi, EIP-712 for Polymarket); data provenance (if a number shows on my dashboard I can point you to the filing it came from); and adversarial safety (every "live" flag on my trading code is double-locked and logs zero credentials).

I ship fast. TeslaPulse — whole app, 20+ trackers, mobile audit — was 35 commits in a single 4.5-hour sitting. I'm now pursuing a transition into aerospace & defense where mechanical design, performance, analysis, manufacturing, and software all converge.

Mechanical & product dev

Mechanical design Product development Prototyping Reverse engineering DFM Patent / trademark support

CAD & design tools

SolidWorks Shapr3D Fusion 360

Manufacturing & supply chain

Overseas manufacturing (China) Factory & supplier management Quality control Production planning PCB coordination Firmware coordination

AI & automation

AI agents / sub-agents Autonomous workflows Claude Agent SDK Anthropic API Prompt caching Tool use / orchestration

Software & languages

Python Node.js TypeScript JavaScript Swift / SwiftUI Next.js Express SQLite

Electronics & BLE

Core Bluetooth / GATT BLE reverse engineering SHA-256 challenge-response Mac Catalyst

Trading & data infra

Binance.US REST + WS Kalshi (RSA-PSS) Polymarket (EIP-712) OCO orders NHTSA / SEC EDGAR / FCC NOAA GFS Prometheus