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lethaale/README.md

Lethale

Web3 CTO & full-stack engineer · Solidity · Ruby on Rails · available part-time for freelance/contract work (remote)

Email X

About

I am a Web3 CTO and full-stack engineer with over 15 years of professional software experience. My work centers on production trading and prediction-market platforms, built end to end: mobile applications, wallet infrastructure, smart contracts, and backend systems. Core languages are Ruby, Python, TypeScript/JavaScript, Solidity, and SQL; the underlying skill set generalizes readily to whatever stack a project requires. I also work extensively with LLM APIs, agentic systems, and AI-assisted engineering workflows, and I teach and mentor on Solidity and Ruby on Rails. As an active CTO currently shipping Aura and Perps.fun, I take on freelance and contract engagements part-time, alongside that work, with particular depth in Web3.

Current work

Aura — Cross-platform trading application (iOS, Android, desktop) unifying Hyperliquid and Polymarket behind a single wallet and login: perpetuals, spot, and prediction markets, with Apple Pay / Google Pay onramps and BTC/ETH/SOL deposits. Chief Technology Officer. → github.com/AuraDotMoney

Perps.fun — Launchpad for perpetual futures markets on Hyperliquid, built on the HIP-3 standard, with SEDA oracle integration, crowdfunded market seeding, and creator fee-sharing. Chief Technology Officer. → github.com/Perps-fun

Technical skills

Web3 Solidity EVM viem Hyperliquid Solana Turnkey

Backend Ruby on Rails Python PostgreSQL SQL WebSockets / Background Jobs

Frontend & Mobile TypeScript / JavaScript React Native Expo Vue.js Nuxt HTML5 CSS3

AI & Agents Anthropic API OpenAI API Agentic Systems MCP AI-assisted Engineering

Quality Playwright Cypress Synpress

Engagements

I take on freelance and contract engagements in Web3 product development (contracts through application), trading and DeFi integrations (Hyperliquid, Polymarket, on-chain wallet infrastructure), Ruby on Rails backends, and cross-platform mobile (React Native / Expo). Availability is part-time, alongside ongoing work as CTO of Aura and Perps.fun, so I'm best suited to well-scoped projects, integrations, and advisory work. For inquiries:

Email X

Outside of work

Away from the keyboard, I play saxophone, climb, and practice acroyoga.


Remote · CET timezone · building software since 2010

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