Geoff Stuart
Senior Software Engineer at Ava Labs
Old Toronto, Ontario, Canada
Summary
🤩
Rockstar🎓
Top SchoolGeoff Stuart is a Senior Software Engineer with a decade of experience building distributed systems, blockchain clients, and high-performance backend services. He has deep hands-on experience in the Filecoin ecosystem—contributing to the lotus reference implementation and FEVM work at Protocol Labs—and currently develops at Ava Labs, bridging blockchain protocol engineering with production-grade tooling. Geoff has a strong track record of performance and cost optimization (e.g., redesigning CI to cut cloud costs by 75% while speeding execution) and has delivered low-latency, safety-critical systems from embedded C++ to cloud-native Java/Kotlin services. Comfortable across the stack, he combines systems-level rigor from a physics-and-CS academic background with practical product velocity, and he’s known for translating protocol-level complexity into reliable CLI and CI automation.
10 years of coding experience
7 years of employment as a software developer
Bachelor of Science - BS Physics, Bachelor of Science - BS Physics at Dalhousie UniversityBachelor of Science - BS Computer Science, Bachelor of Science - BS Computer Science at University of Waterloo
Github Skills (9)
go10
filecoin10
api10
apidoc10
blockchain10
cli10
databases3
database3
sql3
Programming languages (6)
Github contributions (5)
filecoin-project/lotus
Dec 2021 - Jan 2023
Reference implementation of the Filecoin protocol, written in Go
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 releases, 348 reviews, 388 commits in 1 year 1 month
Contributions summary:Geoff's contributions primarily focused on enhancing the Filecoin protocol's reference implementation, specifically the `lotus` codebase. Their work involved improvements to the miner functionality, including sorting retrieval deals, making VM gas tracing configurable, and implementing a CLI command for removing verified client data caps. Furthermore, the user implemented various CLI commands to interact with the verified registry. They also added a test to make sure a pending verified deal proposal gets migrated to allocation.
golangipfsfilecoinblockchainfilecoin-protocol
ava-labs/icm-contracts
Sep 2023 - Mar 2025
Smart contracts built on top of Avalanche Interchain Messaging (ICM) to facilitate EVM cross-chain application development.
Contributions:1 release, 809 reviews, 243 PRs in 1 year 6 months
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