
The all-in-one cryptocurrency trading platform
OKX is a leading cryptocurrency exchange headquartered in Mahe, Seychelles, serving over 50 million active users across 180 countries. The platform offers a comprehensive suite of services, including crypto trading, NFT marketplaces, and decentralized finance (DeFi) products. With a commitment to se...
OKX provides a comprehensive insurance package covering medical, dental, vision, disability, and life insurance. Employees enjoy paid parental leave, ...
OKX fosters a culture focused on accessibility in cryptocurrency trading, aiming to demystify the crypto space for users of all levels. The company va...

OKX • Singapore, Singapore
OKX is seeking a Senior/Staff Engineer for their DeFi Wallet team to enhance system stability and optimize online services. You'll work with blockchain technologies and contribute to the development of decentralized applications. This role requires expertise in blockchain and web technologies.
You have extensive experience in engineering, particularly in the blockchain space, with a strong understanding of decentralized applications and their architecture. Your background includes optimizing system stability and improving the availability of online services, ensuring they can handle high concurrency and big data processes. You are adept at resolving online incidents and have a proactive approach to system management.
You possess a deep understanding of blockchain technologies and have hands-on experience with tools and frameworks relevant to the DeFi ecosystem. Your technical skills include proficiency in Solidity and Web3.js, which you have used to develop and maintain decentralized applications. You are familiar with the challenges of on-chain asset data management and transaction broadcasts.
You thrive in collaborative environments and enjoy working with cross-functional teams to drive projects forward. Your communication skills allow you to articulate complex technical concepts to both technical and non-technical stakeholders. You are passionate about the potential of blockchain technology to reshape the future and are eager to contribute to innovative solutions in the crypto space.
Experience with high-concurrency requests and big data processes is a plus. Familiarity with various blockchain platforms and their ecosystems will enhance your ability to adapt to the evolving landscape of decentralized finance.
As a Senior/Staff Engineer on the DeFi Wallet team, you will be responsible for the construction of system stability and the optimization of online services. Your role will involve improving the carrying capacity of services and ensuring they are resilient to high traffic and data loads. You will work closely with other engineers to develop solutions that enhance the user experience of OKX Wallet and its associated applications.
You will engage in on-chain asset data management, focusing on transaction broadcasts and gas estimation. Your expertise will be crucial in adapting the business's interactions with different blockchains, ensuring seamless integration and functionality. You will also play a key role in troubleshooting and resolving online incidents, contributing to the overall reliability of the services offered by OKX.
Collaboration is at the heart of this role, as you will partner with product managers, designers, and other engineers to deliver high-quality features that meet user needs. You will participate in code reviews, provide mentorship to junior engineers, and contribute to the continuous improvement of engineering practices within the team.
At OKX, you will be part of a dynamic team that is shaping the future of finance through blockchain technology. We offer a competitive salary and benefits package, along with opportunities for professional growth and development. Our culture is built on shared values that prioritize collaboration, integrity, and innovation.
You will have the chance to work on cutting-edge projects that impact millions of users globally. We encourage you to apply even if your experience doesn't match every requirement — your passion for blockchain and commitment to excellence are what matter most. Join us in our mission to empower individuals through crypto and decentralized finance.
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