Principal/Senior Engineer - Defi - Web3 - DEX(Java)

Sorry, this job was removed at 06:45 p.m. (CST) on Monday, Aug 04, 2025
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Hong Kong
Financial Services
The Role
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

The DEX team is a cross-chain transaction aggregator that helps users find the best liquidity on the chain and easily trade any asset. DEX automatically calculates the optimal transaction path in multi-chain and cross-chain scenarios through intelligent routing algorithms, providing users with quotes with lower slippage and fewer network fees.

What You’ll Be Doing:

  • Responsible for server-level development of blockchain, Oracle, and other blockchain service products;
  • System Performance optimization, technical research and development to ensure high availability, high reliability and high performance requirements;
  • Architecture ability to identify service optimization points and improve engineering production efficiency;
  • Familiar with business and product requirements, complete functional design, architecture design optimization and R & D work.

What We Look For In You: 

  • Bachelor's degree or above in computer science, software engineering or related majors, with more than 3 years of work experience.
  • Java solid foundation, including JVM, IO, multithreading, concurrency, networking, deep understanding of Object Oriented, design principles, encapsulation abstraction, etc.
  • Proficient in mainstream Java frameworks such as Spring/SpringBoot/SpringCloud, with experience in large-scale project foundation and application architecture design preferred;
  • Familiar with one of Python/Go/TS/Rust/Graph, etc., those who write blockchain smart contracts or other decentralized applications are preferred;
  • Familiarity with blockchain platform products is preferred, such as Bitcoin, Ethereum, Hyperledger, etc.
  • Those who are interested in blockchain technology and have experience in using and researching public chain ecosystem projects are preferred, such as Uniswap, AAVE, etc.
  • Understanding Merkel trees, zero-knowledge proofs, and L2 layer network implementation principles is a priority.
 
Perks & Benefits
  • Competitive total compensation
  • Comprehensive insurance coverage for employees and their dependants
  • More that we love to tell you along the process!

#LI-LL1 #LI-ONSITE

OKX Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about OKX and has not been reviewed or approved by OKX.

  • Fair & Transparent Compensation Pay is considered competitive or above market, especially in engineering, product, and legal roles across major hubs. This positioning is consistently cited as a major attraction for candidates.
  • Healthcare Strength Role descriptions indicate comprehensive medical, dental, vision, life, and disability coverage, with employer-paid premiums in some cases. Health coverage is highlighted alongside core benefits like PTO and parental leave.
  • Wellbeing & Lifestyle Benefits Allowances for education and fitness, meal perks and snacks, team-building budgets, and structured learning programs are described across locations. These extras enhance the total rewards package beyond base pay.

OKX Insights

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The Company
Dublin, Dublin
1,073 Employees
Year Founded: 2017

What We Do

Founded in 2017, OKX is one of the world’s leading cryptocurrency spot and derivatives exchanges. OKX innovatively adopted blockchain technology to reshape the financial ecosystem by offering some of the most diverse and sophisticated products, solutions, and trading tools on the market. Trusted by more than 20 million users in over 180 regions globally, OKX strives to provide an engaging platform that empowers every individual to explore the world of crypto. In addition to its world-class DeFi exchange, OKX serves its users with OKX Insights, a research arm that is at the cutting edge of the latest trends in the cryptocurrency industry. With its extensive range of crypto products and services, and unwavering commitment to innovation, OKX’s vision is a world of financial access backed by blockchain and the power of decentralized finance.

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