Alex Baigent 's CV ()

I am a (currently) Tokyo-based founding product engineer and CTO with a background in web3 of more than a decade. I most recently co-founded in 2021 Fluidity Labs, where I built Fluidity Money, a yield-bearing stablecoin, and Superposition, an Arbitrum Orbit chain including some of its applications. I enjoy working with small teams to solve problems within a complex technology domain.

I was born and raised in Adelaide, South Australia and studied Corporate Finance before dropping out in my final semester at the University of Adelaide.

Fluidity Labs (2021-) (source)

Co-founded. Supported by leading investors including Multicoin, Lemniscap, Circle Ventures, Solana Ventures, ZachXBT, DCFGod, and more^ann. Received several grants throughout the years, including from Arbitrum^ann, Polygon, AAVE^ann, Compound, Solana, Sui^ann, and more.

Skills

Go, OCaml, Rust, Solidity, Vyper, Huff (EVM preprocessor), Arbitrum Stylus, Postgresql, KDB+ Q, Python, Typescript, shell scripting, Debian and AWS Linux sysadmin, AWS, Mosquitto/RabbitMQ, Docker, Posthog, Sentry, Grafana and an in-house data pipeline, assembled a rig in a colocated server rack.

Assembled and project managed a team of 8 people from various domains, 5 engineers, involved in negotiations at every stage for fundraising, grants, and more.

Built

• 9lives (source): the first prediction market using Arbitrum Stylus Rust, with a novel first commercialisation of the Dynamic Pari-Mutuel Market (DPM) Model and Constant Product Market Maker (CPMM). Processed hundreds of thousands of transactions. Built a new type of calldata aggregating paymaster based on lessons from Solana and more. Included a natural language oracle like Uma. The AMM audited by OpenZeppelin.
• Longtail (source): the first concentrated liquidity AMM built using Stylus. Processed several million in volume without incentives. Audited by Codearena and in private, with a competition the first of its kind.
• Fluidity Money (source): the stablecoin that pays you to use it. Processed more than $2.5 billion in transaction volume. Launched on Solana, Arbitrum, Ethereum, Polygon, and Sui. Wrote a whitepaper on the mechanics in partnership with the Royal Melbourne Institute of Technology (RMIT)^link.
• Purr Stream (source): a cat donation livestreaming app. Received more than $10k in donations.
• Superposition Passport: a new type of UTXO orderbook rollup based on Solana and Sui for very high performance trading, capable of bundling hundreds of trades at the same time with a coincidence-of-wants (cow) recursive structure. Passport powers Longtail Pro, a very high performance trading engine that can support hundreds of off-chain bundled trades before triggering an on-chain interaction.
• A number of research pieces, partnered with more than 50 teams. Built ingesting ETL infrastructure for applications deployed on Superposition, including a NFT marketplace, other trading platforms, and more.

Markov Geist (2025-)

Supported by the Arbitrum DAO with a grant. A vehicle for Stylus and open source evangelism.

Skills

Go, Rust, OCaml, RISC-V asm preprocessor, Huff (EVM preprocessor), OpenBSD sysadmin.

Negotiated grants, spoke at conferences.

Built

• bobcat-sdk: an alternative SDK for Arbitrum Stylus. Supports various exotic custom proxies handwritten. Used as a part of arbos-foundry's test suite. 4x smaller than the official SDK, with a faster compilation time, and some features not supported by the main SDK.
• Stylus Saturdays: the most popular newsletter in the Stylus community.Added support for the Go programming language to Arbitrum using Stylus. Added support for RISC-V to the official Stylus SDK. Implemented quadratic voting, Chainlink examples. Gave a talk on building a lending protocol and stablecoin at Arbiverse Bangkok.
• Stylusup: the community hub for Arbitrum Stylus. Featuring several projects with an active community.
• Built a novel Proof of Work algorithm: Bucharest Hashing using cuckoo hashing and chess solution finding. Manufactured several mechanical keyboards as prizes.
• Writing a book on authoring smart contracts with Rust. Introduces distributed systems, public-private key cryptography, and more. Covers Solana, Arbitrum, and NEAR, and explains the differences between each.
• Building Orderbookkit, a orderbook architecture with support for a RFQ "sliplane" frontend to a CLOB for snappy off-chain price discovery and exotic RISC-V based hook architecture with guest VMs and sysjails. Supports high performance trading with instant on-chain finalisation.

Adelaide Functional Programming (2021-2025)

Founded the largest functional programming meetup group in Australia, with 933 members. Gave talks (how to build a high performance functional orderbook, combinatorial-style programming) and organised meetups. Handed the reins off to my friends Calvin and Jack.

At university, I (studied part time)... (2017-2021)

• Participated in M&A competitions.
• Was a member of the blockchain club.
• Won an award for my "Wool Proof" startup, where we tried to make transparent the wool supply chain in South Australia.

Also before and during University, I... (2015-2021)

• Worked as a PHP web dev for a creative studio (Make in Katana).
• Did systems administration for different people I knew. Red teamed a company for their ISO27001 accreditation.
• Tried (and failed) to get several projects off the ground. Including a ZK startup that devolved into client work (Iomete Labs).