Yik Lee
Singapore
Summary
🤩
Rockstar🎓
Top SchoolYik Lee is a backend-focused software engineer and tech leader with 10 years of experience building production systems across startups and fintech in Singapore, including roles as CTO at Switcheo Network and Technical Lead at Gomu.co. Trained in Algorithms & Theory at NUS, he enjoys tackling hard problems and optimising performance down to assembly-level thinking, with a particular interest in algorithms and quantum computing. His open-source contributions include gas and efficiency optimizations to Chainlink’s VRF smart contracts, improving cost-effectiveness for a widely used decentralized oracle network. Comfortable across the full stack, he intentionally seeks smaller-company settings to understand cross-functional dynamics and how product and engineering solve problems at different scales. Resourceful and pragmatic, he pairs system-level thinking with hands-on implementation to deliver performant, maintainable solutions.
10 years of coding experience
10 years of employment as a software developer
Bachelor of Computing (Honours) in Computer Science, Algorithms & Theory, Bachelor of Computing (Honours) in Computer Science, Algorithms & Theory at National University of Singapore
English, Chinese
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (9)
gas-optimization10
smart-contracts10
chainlink10
solidity10
oracle10
oracles10
ethereum10
blockchain10
go8
Programming languages (6)
Github contributions (5)
smartcontractkit/chainlink
Jan 2024 - Apr 2025
node of the decentralized oracle network, bridging on and off-chain computation
Role in this project:
Back-end Developer
Back-end DeveloperContributions:98 reviews, 39 PRs, 69 pushes in 1 year 2 months
Contributions summary:Yik primarily focused on optimizing gas usage within the Chainlink smart contracts, particularly related to the VRF V2 Plus functionality. Their contributions involved modifying and improving functions related to random word requests and fulfillment, including gas optimization, removal of unnecessary checks, and adding event emissions. Furthermore, the user added native payment support to the RandomWordsFulfilled event, and refactored the code to improve its efficiency and maintainability. This work directly improves the cost-effectiveness of using the Chainlink oracle.
golangcomputationethereumblockchaindecentralized
gomuweb3/gomu
May 2022 - Sep 2022
Contributions:25 reviews, 33 commits, 6 PRs in 4 months
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