Andreas Bigger

Engineer. Investor. Writer.

About

I build the Base chain in Rust at Base. Outside of that, I'm a deep value investor — I write about fallen angels, temporarily disliked companies, and businesses the market has written off. I also angel invest; reach out on X.

You can find my writing at substack and my code at github.com/refcell.

Writing on Substack

refcell.substack.com
Senior Software Engineer · Coinbase
Dec 2025 – Present

Base Chain Scaling in Rust.

Consultant · Paradigm
Sep 2025 – Dec 2025

Built a Crypto Evaluation Framework.

Consultant · OpenAI
Sep 2025 – Dec 2025

Built a Crypto Evaluation Framework.

Protocol Engineer · OP Labs
Jan 2023 – Sep 2025

Engineered Golang Fault Proofs, Rust Fault Proofs, Rust Clients (op-reth and kona).

Software Engineer · Rainbow
Jul 2022 – Dec 2022

Solidity contracts, backend Go infrastructure, and Rust-based Cloudflare Workers.

Software Engineer · Nascent
Mar 2021 – Aug 2022
Director of Engineering · HackSC
Sep 2019 – Mar 2021

USC's premier hackathon. Led engineering and organized hour-to-hour operations.

Software Engineering Intern · CME Group
Oct 2019 – Aug 2020

Papers

EVMBench: Benchmarking AI Agents on EVM Smart Contract Security

OpenAI×Paradigm· Feb 18, 2026

An open evaluation framework that tests AI agents across detecting, patching, and exploiting vulnerabilities in EVM smart contracts. Uses real vulnerabilities from public code audits and custom tasks from unreleased contracts, with each task containerized for realistic testing environments.

Stay tuned...

subway-rs

An extensible and practical demonstration of constructing evm-based sandwich attacks built with ethers-rs and Huff language.

Rust
541
femplate

Robust, Feature-Rich Solidity Template Repository for Foundry Projects with Scripting, Testing, and Utility Bash Scripts.

Solidity
386
run-wild

Augment GPT-4 Environment Access

Rust
285
cairomate

Structured, dependable legos for Starknet development.

Python
133
archon

An efficient, robust, and generalized batch submission service for rollup stacks written in pure rust.

Rust
94
cloaks

Extensible ERC721 with a Built-in Commitment Scheme.

Solidity
91

Contributions

4,563 in the last year