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OC

Ocean Cheung

Engineering Lead / Co-founder

New York

๐ŸŸขAping In

Experienced software engineer and engineering leader with deep expertise in blockchain protocols, EVM, smart contracts, and backend systems. Co-founder at Gattai, former Engineering Lead at Berachain, and Protocol Engineer at Dapper Labs. Background spans DeFi, protocol infrastructure, mobile, and distributed systems.

Work Preferences

Salary

USD 200,000

Skills

EVM10/10
Go10/10
Smart Contracts10/10
Solidity9/10
Kafka9/10
gRPC (8/10)Rust (8/10)TypeScript (7/10)CI/CD (7/10)Docker (7/10)Kotlin (7/10)Kubernetes (7/10)PostgreSQL (7/10)Python (7/10)Swift (7/10)AWS (7/10)GCP (6/10)Terraform (6/10)Java (6/10)GraphQL (6/10)

Work Experience

Co-founder

Gattai

Jan 2025 โ€” Present

Orchestrated multi-agent coding workflows across implementation, review, testing, and integration. Developed a Rust SDK, CLI, and host daemon supporting both Firecracker and Virtualization.framework execution environments. Shipped GitHub-connected agent workflows for repository selection, persistent sessions, streaming, diffs, and PRs.

Engineering Lead

Berachain

Jan 2023 โ€” Jan 2025

Owned engineering work across core chain, smart contracts, and backend systems for protocol infrastructure and DeFi products. Co-authored BeaconKit, Berachain's modular EVM consensus client. Architected an EIP-4788 root-follower system. Owned Solidity smart contracts for lending, DEX, routing, and Proof of Liquidity. Led most engineering hiring and onboarding as the team grew from 4 to 40 engineers.

Protocol Engineer

Dapper Labs (Flow)

Jan 2022 โ€” Jan 2023

Reduced archive node infrastructure costs by an estimated $1M+ annually by removing a 700GB+ in-memory trie requirement. Reduced access node gRPC response times by approximately 83%. Owned Flow's Coinbase Rosetta integration, adding CI and integration tests.

Software Engineer

Fabriik

Jan 2020 โ€” Jan 2022

Owned the full-stack post-trade settlement app and daily OTC reporting workflows. Developed trade and market-data connectors with balance alerting across 7 centralized exchanges and liquidity providers. Rewrote core order execution and management services, standardizing REST APIs across trading workflows.

Software Engineer (Contract)

HelpWear

Jan 2020 โ€” Jan 2021

Architected and built a native Android app for collecting real-time patient health data from a proprietary BLE device. Implemented local data storage and upload workflows for patient monitoring data.

Software Engineer

Coinsquare

Jan 2019 โ€” Dec 2019

Built and launched StellarX, a native iOS decentralized exchange, and maintained the open source Stellar iOS SDK.

Software Engineer

Koi Loyalty (Acquired by Coinsquare)

Jan 2018 โ€” Jan 2019

Built the iOS wallet and merchant payments client, integrating multiple payment providers for partnered retailers.

Software Engineer

Uber

Jan 2017 โ€” Dec 2017

Built the first system for managing driver compliance and municipal driver registrations in regulated Canadian markets.

Education

McMaster University

B.Eng. ยท Software Engineering

? โ€“ 2018