Alexander Baigent 's CV ()

Bio

I am a 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.

CTO, systems engineer, and author with 12+ years experience building high-performance financial and blockchain infrastructure. Co-founder of Fluidity Labs, delivering products with $2.5B+ transaction volume across Ethereum, Solana, and L2s. Specialises in low-latency trading systems, AMMs, and distributed systems in Rust, Go, and OCaml.

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)

Fluidity Labs, Remote

2021-Present

Co-founder and CTO. 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.

Hired and led a team of 8 people, 5 engineers. Delivered 5 production applications.

Achievements

• 9lives (source): prediction market (Arbitrum Stylus Rust). First commercialisation of the Dynamic Pari-Mutuel Market (DPM) Model. Processed hundreds of thousands of transactions and more than $800k in fully organic volume. Audited by OpenZeppelin.
• Longtail (source): the first concentrated liquidity AMM built using Stylus. Processed more than $3 million in volume. Audited by Codearena and in private.
• 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. Able to bundle hundreds of trades in one transaction with a coincidence-of-wants (cow) recursive structure.
• 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.

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.

Markov Geist (2025-)

Markov Geist, Remote 2025-Present

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

Achievements

• 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 better codesize performance 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.

Skills

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

Negotiated grants, spoke at conferences.

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

• Rebuilt the ETL pipeline for Secure Data Links (now Pier Two) from scratch to use Kafka KSQL. Generated a reported "14x" speed up.
• Worked as a tech lead for proptech valuation startup ValAI. Implemented the original valuation system with AWS hosted Jupyter notebooks.
• Tried (and failed) to get several projects off the ground. Including a ZK startup that devolved into client work after releasing an overview of the ZK Snark ecosystem (Iomete Labs). At the time, there wasn't a comprehensive overview of the space, we were proud of what we made (attributed to Fluidity later).
• 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.

Speaking and community

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. Transferred organisation leadership to members.