Senior Java Backend Engineer — Asset & Earn
On-siteHong Kong, Hong Kong
Job Summary
Design and develop high-performance, high-availability backend services for Simple Earn, Flash Earn, Loan products, and stablecoin yield distribution. Build and maintain the Jumpstart subscription and allocation system for new token launches. 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. Requires proficiency in AI-assisted development tools, Java/SpringBoot, Kafka, Redis, and Kubernetes. Minimum 3 years of backend experience in financial industries with fluency in English and Mandarin.
Required Qualifications
- Proficient in AI-assisted development tools such as Codex and Claude Code
- 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
- Experience in high-concurrency, high-availability, and high-performance systems
- Familiarity with mainstream messaging frameworks such as Kafka
- Experience with 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
- Hands-on experience building earn or loan products, with understanding of interest accrual, risk control, and liquidity management
- Familiarity with stablecoin mechanics (USDT, USDC) and experience developing yield distribution or settlement systems
- Experience building token launch, quota allocation, or subscription systems (e.g. Jumpstart-style products)
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