TJ Koury

Founder & Chief Architect, DigitalArsenal.io, Inc.

digitalarsenal.io  ยท  github.com/DigitalArsenal

Summary

Architect and engineer with over a decade of experience building open-source infrastructure for the space industry. Founded DigitalArsenal.io to develop the Space Data Network — a decentralized protocol for exchanging standardized space operations data across organizations, agencies, and commercial operators. Designed and shipped the first WebAssembly-based astrodynamics simulation tools to run natively in web browsers, replacing software that typically costs $50K–$500K per year in licensing fees.

Technical Skills

LanguagesGo, TypeScript, C++, Rust, Python, JavaScript
Web & GraphicsWebGL, WebGPU, WebAssembly, Three.js, CesiumJS, Svelte
DataFlatBuffers, SQLite, FlatSQL, IPFS, IndexedDB
Networkinglibp2p, GossipSub, Kademlia DHT, WebTransport, Circuit Relay
CryptographyEd25519, ECIES, X25519, BIP-32/39/44, FIPS 140-3, Microsoft SEAL
AstrodynamicsOrbital mechanics, SGP4/SGP4-XP, conjunction assessment, Tudat, Basilisk

Commercial Products

OrbPro [1]

3D orbital visualization engine built on CesiumJS. Provides real-time satellite rendering, sensor field-of-view modeling, viewshed and access analysis, and conjunction visualization. Serves as the rendering core for the SpaceAware.io platform.

CesiumJS, WebGL, TypeScript

SpaceAware.io

SaaS platform for space situational awareness. Integrates AI-driven natural language globe control through MCP, modeling and simulation across 608 entity types, and real-time data streaming from the Space Data Network. Tiered from a free public catalog up to full mission-planning capabilities.

SaaS, AI/NLP, Full-stack platform

Open Source

Space Data Network [2][3]

Decentralized peer-to-peer protocol for space data exchange. Nodes communicate over libp2p using GossipSub publish-subscribe and Kademlia DHT discovery, with content-addressed storage ensuring deduplication across the network. Includes a built-in data marketplace with trust-based reputation scoring and encrypted transactions.

Go, libp2p, TypeScript

FlatBuffers WASM [4][5]

WebAssembly port of Google’s FlatBuffers compiler, enabling schema compilation and code generation for 13 languages directly in the browser. Achieves zero-copy deserialization at roughly 250 million operations per second on Apple Silicon.

WASM, C++, Emscripten

FlatSQL [6][7]

SQL query layer over FlatBuffers binary data. Implements SQLite virtual tables with content-addressed indexing, sustaining approximately 580,000 operations per second.

Go, SQLite

HD Wallet WASM [8][9]

Hierarchical deterministic wallet library compiled to WebAssembly. Implements BIP-32, BIP-39, and BIP-44 derivation paths with support for 50+ blockchain networks. Provides Ed25519, secp256k1, and secp256r1 signing, and is compliant with FIPS 140-3.

WASM, Rust, Cryptography

Space Data Standards [10]

A library of 127 FlatBuffer schemas defining a complete type system for space operations: orbital elements, ephemeris, conjunction data messages, tracking, catalog management, entity identity, and marketplace protocols.

FlatBuffers, Schema design

Tudat-WASM [11]

The first WebAssembly port of TU Delft’s Tudat astrodynamics toolbox. Runs high-fidelity orbital propagation, trajectory optimization, and mission design entirely in the browser with no native installation required.

WASM, C++, Astrodynamics

Basilisk-WASM [12]

WebAssembly compilation of the Basilisk spacecraft simulation framework. Contains over 310 C++ classes covering attitude dynamics, power systems, reaction wheels, thrusters, and sensor models, backed by 1,757 unit tests.

WASM, C++, Spacecraft simulation

Selected Achievements