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. About the Opportunity We are seeking a talented and experienced Blockchain Developer to join X Layer. As a blockchain developer, you will be responsible for designing, implementing, and maintaining the X Layer public chain. Additionally, you will support hackathon events to drive innovation and collaboration within the X Layer community and participate in the development of OP Stack. What You’ll Be Doing

• Optimize X Layer performance, enhance on‑chain infrastructure, and develop related products.
• Stay up to date with cutting‑edge blockchain technologies and establish a world‑class on‑chain infrastructure.
• Collaborate with product and marketing teams to define and implement technical solutions for the public chain and provide necessary technical support.

What We Look For In You

• Proficiency in Rust, with experience reading core code of major public chains or L2 solutions (e.g., ETH, Optimism, Arbitrum), with solid expertise in OP Stack; familiarity with Reth is a strong plus.
• Strong understanding of blockchain fundamentals, including consensus mechanisms, P2P networks, and cryptography.
• Excellent teamwork, communication, and logical thinking skills.
• A deep passion for blockchain technology with a commitment to continuous learning.

Perks & Benefits

• Competitive total compensation
• Comprehensive insurance coverage for employees and their dependants
• More we love to tell you along the process!

Disclaimer: Please note that Hong Kong is a group‑level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong.