Senior Backend; Java Developer

Core Job Responsibilities

• 3+ years of experience in exchange core system development
• Design indexing systems, RPC interaction layers, and event stream processing architecture
• Build real-time data pipelines (e.g., Kafka/Rabbit
  
  MQ integration)
• High-Performance API Development
• Build REST/Web Socket/Graph
  
  QL interfaces
• Handle low-latency requirements in high-frequency trading scenarios
• DeFi Application Logic Implementation
• Price oracle integration
• Trading simulation engine development; 3+ years of futures or spot trading system development experience
• Risk control system implementation
• Microservices Architecture Design
• Wallet interaction services
• Trading queue management
• Gas fee optimization strategies
• Infrastructure Reliability Assurance
• Node management
• Load balancing
• Failover systems

• 5+ years of backend development experience (Java/Type Script/Rust/Go), proficient in EVM smart contracts
• Blockchain interaction experience (JSON-RPC, ethers.js/web
  3.py)
• Database optimization (Postgre
  
  SQL/Timescale
  
  DB/Redis)
• Asynchronous architecture design (Kafka/Rabbit
  
  MQ/Celery)

• Web3 ecosystem components (EVM, The Graph and other indexing solutions)
• Security practices (rate limiting, input sanitization, replay attack protection)
• Cloud deployment experience (AWS/GCP, containerization, IaC)

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.