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Backend Engineer - Java

OKX
Remote Posted Jul 21, 2026
RemoteUSD 126,000 - 145,000 / year

About this role

About The Opportunity

The Asset & Earn Team 2 is responsible for building and scaling next-generation earn and lending solutions at one of the world's largest crypto exchanges. As a developer on this team, you will work on Simple Earn, Flash Earn (including Jumpstart), Loan products, and Stablecoin Yield features — powering millions of users' passive income journeys in the crypto ecosystem. What You'll Be Doing:

  • Design and develop high-performance, high-availability backend services for Simple Earn, Flash Earn, and Loan products

  • Build and maintain the Jumpstart subscription and allocation system for new token launches

  • Design and implement backend systems for stablecoin yield distribution and settlement

  • Work closely with Product, Design, Risk, and Quant teams to deliver innovative earn and lending features

  • Participate in on-call production support and incident response to ensure platform stability

What We Look For In You:

  • Proficient in AI-assisted development tools such as Codex and Claude Code — mandatory requirement to boost engineering productivity and iteration speed

  • Minimum 3 years of backend development experience in financial or related industries

  • Experience in Microservice/API development with Java / SpringBoot / SpringCloud

  • Strong understanding of multi-threading, concurrency control, and distributed system design, with experience in high-concurrency, high-availability, and high-performance systems

  • Familiarity with mainstream messaging frameworks such as Kafka and caching solutions like Redis

  • Experience with Kubernetes (K8s) for container orchestration and deployment

  • Solid experience with relational databases (MySQL or equivalent)

  • Comfortable in a cloud-based Linux environment with production support capability

  • Basic understanding of finance concepts, particularly earn/deposit, lending/loan, and yield products

  • Fluency in English and Mandarin

  • Business Domain Experience (At least one of the following three is required):

  • Earn & Loan: Hands-on experience building earn or loan products, with understanding of interest accrual, risk control, and liquidity management

  • Stablecoin Yield: Familiarity with stablecoin mechanics (USDT, USDC) and experience developing yield distribution or settlement systems

  • Subscription & Allocation Systems: Experience building token launch, quota allocation, or subscription systems (e.g. Jumpstart-

Perks & Benefits

  • Competitive total compensation package

  • L&D programs and education subsidy for employees' growth and development

  • Various team building programs and company events

  • Wellness and meal allowances Comprehensive healthcare schemes for employees and dependants

  • More that we love to tell you along the process!

Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.

Compensation: $126k - $145k estimated

Location: Remote

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