Jehan Tremback
Y2K Specialist at Althea
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolJehan Tremback is a versatile software engineer and founder with 14 years of experience building full-stack and cross-chain systems from San Francisco. Currently a Y2K Specialist at Initech and co-founder of Althea, he blends systems-level backend work—demonstrated by contributions to Cosmos projects like interchain-security and gravity-bridge—with hands-on front-end and mobile UX improvements for projects such as Hypothesis and react-native-camera. His background spans product design, UX leadership, and Solidity smart contract integration, enabling him to bridge protocol engineering and user-facing interfaces. Notably, he has shipped core blockchain validator-set logic and tooling for cross-chain security while also optimizing annotation UIs and iOS camera behaviors, evidence of a rare mix of low-level correctness and polish.
14 years of coding experience
5 years of employment as a software developer
Academy of Art University
deutsche
Stackoverflow
2,751reputation
305kreached
12answers
18questions
Github Skills (37)
cosmos-sdk10
objective-c10
javascript10
solidity10
ios10
react-native10
coffeescript10
handlebars10
image-processing10
annotations10
css10
contract10
annotation-processing10
camera10
go10
Programming languages (26)
Github contributions (5)
cosmos/gravity-bridge
May 2020 - Aug 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:27 reviews, 311 commits, 27 PRs in 1 year 3 months
Contributions summary:Jehan focused on building the core back-end functionality of the gravity-bridge, a Cosmos SDK application for moving assets. Their contributions involved implementing and refining Solidity smart contracts for the Ethereum side of the bridge, as well as integrating the bridge with the Cosmos ecosystem. The commits indicate a deep understanding of Ethereum-based contracts and interacting with a Cosmos chain to provide core functionality. Additionally, they performed refactoring and added unit tests to ensure code quality.
ethereumblockchainevmchainspow
cosmos/interchain-security
Oct 2021 - Dec 2022
Interchain Security is an open sourced IBC application which allows cosmos blockchains to lease their proof-of-stake security to one another.
Role in this project:Back-end Developer
Back-end DeveloperContributions:3 releases, 388 reviews, 126 commits in 1 year 2 months
Contributions summary:Jehan implemented core functionality related to interchain security, specifically focusing on validator set changes and their propagation across different chains. They implemented and tested the `AccumulateChanges` utility function for merging validator updates. Furthermore, the user worked on integrating staking hooks, including unbonding delegation entry creation and handling, into the parent CCV module. Additional work involved the creation of CLI and REST handlers for proposals.
blockchaincosmos-hubcosmos-sdkgolangibc
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