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Principal Engineer, OKX Pay

San Jose, California, United States

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.

About the Opportunity

We are building next-generation blockchain applications that empower millions of users worldwide to access Web3 services such as wallets, staking, and DeFi protocols. As a core member of our engineering team, you will have the chance to work on high-impact, large-scale systems that demand innovation in performance, security, and usability. This role is ideal for engineers who are passionate about blockchain, eager to stay at the forefront of industry trends, and motivated to bring new products from concept to reality. You’ll collaborate with talented peers, solve challenging technical problems, and help shape the future of decentralized finance.

What You’ll Be Doing

  • Develop blockchain application-layer business services (including Web3 wallets, staking, and DeFi protocol design).
  • Conduct system performance optimization and tackle technical challenges to ensure high availability, reliability, and performance.
  • Identify opportunities for service optimization through strong architectural capabilities, improving engineering efficiency.
  • Understand business and product requirements, and deliver feature design, architecture optimization, and R&D work.

What We Look For In You

  • 5+ years of Java programming experience with solid fundamentals; strong understanding of I/O, multithreading, collections, and working knowledge of JVM principles.
  • Bachelor’s degree or above in Computer Science, Software Engineering, or a related field.
  • Proficient in mainstream development frameworks such as Spring Boot and MyBatis (or similar OR-mapping framework).
  • Deep understanding of mainstream databases and middleware such as MySQL, Redis, Elasticsearch, HBase, and Kafka.
  • Strong passion for technology, broad vision, curiosity for exploration, self-driven with excellent learning ability.
  • Experience in blockchain platform product development; familiar with Bitcoin, Ethereum, or one or more leading DeFi projects (e.g., MakerDAO, Uniswap, Compound, Synthetix).
  • High sensitivity to blockchain industry trends, able to track hot topics, lead the team to explore opportunities, and drive new product launches.

Nice to Have

  • Experience developing high-concurrency, high-availability, high-performance projects.
  • Familiarity with one or more blockchain ecosystems (BTC, ETH, Cosmos, Polkadot) or leading DeFi projects (MakerDAO, Uniswap, Compound, Synthetix).
  • Outgoing personality with strong communication skills; project management experience is a plus.
  • Proficiency in at least one additional language such as C++, Go, or TypeScript.
 

OKX Statement

The base salary range for this position is $313,055 to $375,666. The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site.

OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider employment-qualified applicants with arrest and conviction records.

#LI-HYBRID
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