Senior/ Staff Engineer - Smart Contract (Earn)

OKX • Contract • Singapore, Singapore • 1w ago

OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa.

Who We Are

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom.

OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves.

Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er.

OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

Roles & Responsibilities

- Independently design and develop systems based on project requirements;
- Design, develop, test, and optimize smart contracts on Ethereum or other leading blockchain platforms;
- Conduct in-depth research on various DeFi protocols, prepare integration documentation, and collaborate with team members to ensure project launches;
- Explore cutting-edge Web3 technologies and trends, contribute to product planning, and drive product implementation.

Requirements

Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent professional experience;
At least 1 year of experience in smart contract development, with proficiency in Solidity and frameworks like Hardhat or Foundry;
Strong backend development skills in Java, with over 3 years of experience using mainstream Java frameworks;
Deep understanding of blockchain technology, including Ethereum, Bitcoin, Solana, and Layer 2 networks;
Familiarity with Assembly and hands-on experience with gas optimization;
Excellent problem-solving and analytical skills;
Strong communication and teamwork capabilities;
Passion for blockchain and DeFi technology with a willingness to continuously learn and stay updated with industry advancements.

Good to have

- Financial background or experience designing and developing DeFi protocols;
- Familiarity with smart contract security and analysis of common blockchain attack events;
- In-depth knowledge of DeFi protocols and their mechanisms, such as Uniswap, AAVE, Compound, and Synthetix;
- Proficiency in English with experience working in decentralized projects or international teams;
- Familiarity with additional contract development languages such as Rust and Move, and scripting languages like Python or JavaScript.