Senior Backend Developer (Java)

Aster is a next-generation decentralized perpetual exchange dedicated to delivering a seamless, powerful, and truly decentralized on-chain derivatives trading experience. From one-click trading to smart automation and deep on-chain liquidity, Aster is rethinking how DeFi should work — simple, efficient, and built for users.Core Job ResponsibilitiesBlockchain Data Processing System Architecture3+ years of experience in exchange core system developmentDesign indexing systems, RPC interaction layers, and event stream processing architectureBuild real-time data pipelines (e.g., Kafka/RabbitMQ integration)High-Performance API DevelopmentBuild REST/WebSocket/GraphQL interfacesHandle low-latency requirements in high-frequency trading scenariosDeFi Application Logic ImplementationPrice oracle integrationTrading simulation engine development; 3+ years of futures or spot trading system development experienceRisk control system implementationMicroservices Architecture DesignWallet interaction servicesTrading queue managementGas fee optimization strategiesInfrastructure Reliability AssuranceNode managementLoad balancingFailover systemsRequired Skills5+ years of backend development experience (Java/TypeScript/Rust/Go), proficient in EVM smart contractsBlockchain interaction experience (JSON-RPC, ethers.js/web3.py)Database optimization (PostgreSQL/TimescaleDB/Redis)Asynchronous architecture design (Kafka/RabbitMQ/Celery)Preferred KnowledgeWeb3 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.#J-18808-Ljbffr