Jack Zampolin
VP Applied Product at Source
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJack Zampolin is a seasoned builder and product leader with 11 years of experience shipping production systems that move billions of dollars, specializing at the intersection of blockchain infrastructure and traditional finance. He co-founded Strangelove—creator of canonical Cosmos tooling like the IBC Relayer, Interchaintest, Horcrux, and Packet Forward Middleware—and led its acquisition by Ondo Finance after spinning out Noble, now a Circle USDC issuer with $450M+ in circulation. As VP Applied Product at Source he’s now focused on decentralized, edge-first data infrastructure (CRDT-based DefraDB) while previously launching major networks and bridges including Cosmos Hub, Gravity Bridge, and Akash mainnet. A hands-on engineer who has contributed directly to projects such as cosmos/relayer and tendermint, he blends deep protocol-level technical chops with product strategy and ecosystem-building. He also founded Galileo Fund, deploying $15M+ across early crypto startups, demonstrating an investor’s eye for high-impact projects. Based in San Francisco, Jack combines operator experience, open-source stewardship, and a proven track record of turning complex distributed systems into production-grade infrastructure.
11 years of coding experience
10 years of employment as a software developer
Bachelor of Arts (B.A.) Accounting and Business/Management, Bachelor of Arts (B.A.) Accounting and Business/Management at Washington and Lee University
Stackoverflow
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Github Skills (58)
json10
cosmos-sdk10
javascript10
docker10
expressjs10
python10
scripting10
testing10
stack10
tendermint10
github-webhooks10
storage10
databases10
bitcoin10
bash10
Programming languages (23)
Github contributions (5)
cosmos/relayer
Apr 2020 - Sep 2022
An IBC relayer for ibc-go
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 releases, 77 reviews, 81 commits in 2 years 5 months
Contributions summary:Jack's commits primarily involve the development of a relay strategy within the `cosmos/relayer` repository. They are focused on the implementation of the "naive" relay strategy, which involves creating and updating clients, connections, and channels, showcasing their work on the core backend logic for IBC relaying. Their work includes the creation and handling of various messages for inter-blockchain communication, indicating a deep understanding of the IBC protocol and its components. They added key features for packet handling, demonstrating their direct involvement in the core functionality of the relayer.
go
cosmos/gravity-bridge
Nov 2020 - Sep 2021
A CosmosSDK application for moving assets on and off of EVM based, POW chains
Role in this project:Back-end Developer
Back-end DeveloperContributions:44 reviews, 137 commits, 21 PRs in 9 months
Contributions summary:Jack's commits focus on implementing features related to the "Stargate" upgrade, which involves migrating to a new Cosmos SDK version. The code changes show modifications to the application's core, including the `app.go` and `msgs.pb.go` files. The commits demonstrate a deep understanding of the underlying infrastructure, with adjustments to data structures and core logic to ensure ongoing functionality. These modifications show the user refactoring the project to accommodate the upgrade.
cosmos-sdkevm
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