核心职责

• 交易架构设计： 主导去中心化交易平台（DEX）后端架构的演进，构建稳定、可扩展的分布式系统。

• 核心引擎开发： 负责撮合逻辑、订单簿维护、实时行情分发及风控清算等关键交易模块的研发。

• 接入与数据服务： 开发高性能交易网关（支持 REST 与 WebSocket）及低延迟的 K 线数据服务。

• 极致性能优化： 针对高频交易场景进行系统调优，确保在极端高并发下的毫秒级响应与稳定性。

• 基座能力建设： 完善数据持久化方案、全链路监控、多维度备份及容灾恢复等基础工程建设。

任职要求

• 深厚技术背景： 拥有 8 年以上 Java 开发经验，精通底层并发编程、内存模型及 JVM 深度调优。

• 行业实战经验： 具备 3 年以上交易所核心系统开发背景，对清结算、资产流转及撮合流程有深刻理解。

• 高性能架构： 熟练运用 LMAX Disruptor、Chronicle 等低延迟框架，具备独立主导复杂子系统的经验。

• 数据存储专家： 精通关系型与非关系型数据库设计（如 MySQL, Redis, MongoDB），擅长分库分表及高可用方案。

• 云原生基础设施： 熟练掌握容器化部署（K8s）与主流公有云架构（AWS/Aliyun），具备实时流处理（Kafka）实战能力。

We are seeking a seasoned Backend Engineer with deep expertise in decentralized finance (DeFi) to lead the architectural design and development of our client's high-performance DEX platform. You will be responsible for building the core components of a world-class trading environment, focusing on ultra-low latency, high concurrency, and uncompromising security.

Key Responsibilities

• Architectural Leadership: Design and develop the core server-side architecture for a Decentralized Exchange (DEX).

• Core Module Engineering: Lead the implementation of critical modules, including matching engines, order books, market data broadcasting, risk management, and clearing/settlement systems.

• Infrastructure & Connectivity: Develop and maintain high-performance trading gateways (REST/WebSocket), market data feeds, and K-line services.

• Performance Optimization: Ensure the stability and performance of high-concurrency, low-latency trading systems through rigorous JVM tuning and system-level optimizations.

• Resilience & Security: Build foundational capabilities for data persistence, comprehensive logging, automated backups, and robust disaster recovery protocols.

• Cross-Functional Collaboration: Partner closely with Smart Contract and Frontend teams to ensure seamless end-to-end integration across the entire trading lifecycle.

Required Qualifications & Skills

• Educational Background: Bachelor’s degree or higher in Computer Science, Software Engineering, or a related technical field.

• Java Expertise: 8+ years of professional Java development experience, with mastery of multi-threading, concurrency models, and JVM performance tuning.

• DEX Domain Knowledge: 3+ years of direct experience in DEX/Exchange server-side development, with a deep understanding of matching, clearing, and risk control workflows.

• High-Performance Frameworks: Proven experience with LMAX Disruptor, Chronicle, or similar high-performance frameworks; familiarity with Exchange-core architectures is essential.

• Data Management: Expertise in MySQL, Redis, and MongoDB, including advanced database design, index optimization, and distributed transaction management.

• System Reliability: Deep understanding of multi-active database deployments and disaster recovery; ability to lead team-wide emergency drills.

• Messaging & Streaming: Proficiency in Kafka (consumer groups, partitioning, persistence) and real-time data processing.

• Cloud & DevOps: Hands-on experience with Docker and Kubernetes (Deployment, Service, Ingress, Monitoring); proficiency with AWS or Alibaba Cloud ecosystems (EC2/ECS, RDS, OSS).

Preferred Attributes (Bonus)

• Experience with EVM-based on-chain settlement, Oracles, and off-chain data integration.

• Familiarity with modern observability stacks, including Prometheus, Grafana, and ELK.

• Polyglot capabilities: Ability to develop stable auxiliary services in Golang or Node.js for on-chain data retrieval and analysis.