alex lazar_

Hey, I'm Alex. I have 6+ years of experience as a software engineer, mostly backend or fullstack work in crypto/web3.

I've worked on trading platforms, blockchain indexers, relayers, dApps, smart contracts, etc as a lead, developer or auditor; largely for small (3-30 employees) seed to series B startups. Now (2025/2026) I'm increasingly more focused on AI-powered projects.

Some of the things I've worked on have handled significant volumes of money or data ($300k volume / week, thousands of events per second, etc). These experiences have made me value proper testing, observability, maintainability, git hygiene and, in general, "well made" software.

I write a newsletter and make videos on YouTube when I get around to it. Also gave conference talks at ETH Amsterdam and Chainlink's SmartCon.

I happen to be at my strongest in TypeScript, but have also shipped Rust, Go, Python, and Solidity.

Outside of work I'm ex-amateur boxer (still train, but don't compete anymore), a bit of a data science hobbyist, a father and a husband.

a few recent side-projects

Job Finder: agentic pipeline that crawls job boards and filters results through a two-stage LLM evaluation.

Minerva: self-hosted API that turns S3 documents into a searchable RAG knowledge base.

CPI Vulnerability Research: security writeup on a class of CPI vulnerabilities in Solana programs, picked up by 0xMacro's Awesome Solana Security list (450+ stars).

If you're a CTO or technical founder at a funded startup and need someone who can own a piece of your product and ship without hand-holding, get in touch: alex@leetsoftware.com.