Blockchain Development Engineer(GO/Solidity/Rust)

OKX • Full-time • Hong Kong, Hong Kong SAR • 5d ago

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 XLayer(zk layer2 based on Polygon CDK) . As a Blockchain Developer, you will be responsible for designing, implementing, and maintaining blockchain-based solutions. Additionally, you will provide support for hackathons to encourage innovation and collaboration within the X Layer community and contribute to the Polygon CDK, or participate in the design and development of ZK spot/perpetual/united account dex.

What You’ll Be Doing:

Blockchain Development: Design, develop, and deploy blockchain solutions, including smart contracts and decentralized applications.

Programming: Write clean, efficient, and maintainable code in languages such as Solidity, Go, (Rust, C++ nice to have),depending on the blockchain platform being used.

Smart Contract Development: Create, test, and deploy smart contracts on various blockchain platforms, ensuring security and efficiency.

Architecture Design: Collaborate with architects and software engineers to design scalable and secure blockchain architectures that meet business and technical requirements.
Performance Optimization: Analyze and optimize the performance of blockchain networks, including transaction throughput and latency, to enhance scalability and efficiency and optimizing zk circuits to improve performance of zkprover

What We Look For In You:

Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.

Proficiency in programming languages such as Go or Solidity. (C++, Rust would be a plus)

Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.

Hands-on experience with blockchain platforms like Ethereum, Cosmos, Bitcoin, EVM or Webassembly virtual machine.

Proven experience as a Blockchain Developer or similar role, with a strong understanding of blockchain concepts, consensus algorithms, and cryptographic principles.

Familiarity with smart contract development tools and frameworks (e.g., Truffle, Remix, Web3.js).

Strong problem-solving and analytical skills, with the ability to design and develop efficient blockchain solutions.

Nice to have:

Hands-on experience with L2 platforms such as Polygon ZKEvm, ZKSync Era, Linea, Taiko, Scroll, etc.
Proficiency in programming languages such as C++, Rust on top of Go/solidity

Familiar with performance optimization tools such as Gperftools, Profiler, Flamegraph, Pprof, etc., and have experience in performance optimization development in actual projects. Experience in zk GPU acceleration is preferred

Experience in zero-knowledge proof development, especially zkvm, and familiarity with principles of plonk/halo2/KZG/FRI and related libraries or circuit development languages, such as plonky2, Circum, gnark

Perks & Benefits