Trading System Developer | 交易系统开发工程师

OneBullEx is an innovative exchange focused on helping traders perform at their best. We provide a smooth and secure trading environment and are building a next-generation trading bot system to empower users — especially beginners — to trade with professional-grade tools and capabilities.

OneBullEx 是一家致力于帮助交易者实现最佳表现的创新型交易所。我们提供流畅、安全的交易环境，并正在打造下一代交易机器人系统，帮助用户（尤其是初学者）使用专业级工具进行交易。

Job Responsibilities | 岗位职责

• Collaborate closely with system designers, market operators, and other developers to design, develop, and maintain an institutional-grade cryptoasset exchange trading system. 与系统设计师、市场运营人员及其他开发者紧密合作，设计、开发并维护机构级加密资产交易所交易系统。
• Responsible for developing core trading system modules, including order book management, quote engine, risk control module, hedging, inventory management, and order cancellation/optimisation. 负责核心交易系统模块的开发，包括订单簿管理、报价引擎、风控模块、对冲、库存管理、撤单 / 改单优化等。
• Implement high-performance, low-latency trading and order interaction logic, supporting connectivity with multiple mainstream centralised exchanges. 实现高性能、低延迟的交易及订单交互逻辑，并支持对接多家主流中心化交易所。
• Continuously optimise system latency, throughput, and stability to achieve sub-second quotation and execution capabilities. 持续优化系统延迟、吞吐量与稳定性，实现亚秒级行情推送与交易响应能力。
• Participate in the development and rapid iteration of trading monitoring systems; collaborate closely with the strategy team to enhance and extend system functionality. 参与交易监控系统的建设与快速迭代，并与策略团队紧密协作，不断优化系统功能。
• Responsible for system architecture design, disaster recovery planning, and rapid identification and resolution of production issues. 负责系统架构设计、容灾方案制定，以及生产环境问题的快速定位与解决。

Job Requirements | 任职要求

• Bachelor's degree or above in computer science, mathematics, electronic engineering, or related fields. 计算机、数学、电子工程或相关专业本科及以上学历。
• 3+ years of hands-on software development experience; experience with cryptocurrency or electronic trading systems is preferred. 3 年以上实际开发经验，有加密货币或电子交易系统开发经验者优先。
• Proficient in Go (Golang) with solid experience building high-concurrency, high-performance systems; familiarity with Java or Python is a plus. 精通 Go（Golang），具备高并发、高性能系统开发实战经验；熟悉 Java 或 Python 者更佳。
• Strong understanding of core trading business logic, including but not limited to: 深刻理解交易核心业务逻辑，包括但不限于：
• • Real-time order book snapshots and incremental updates 订单簿实时快照与增量更新
  • Price spread management and inventory control 价差管理与库存控制
  • Hedging mechanisms 对冲机制
  • Various order types 各类订单类型
  • Perpetual futures and derivatives trading 永续合约及衍生品交易
• Familiar with mainstream exchange APIs (both REST and WebSocket), including private trading and account interfaces. 熟悉主流交易所 API（REST / WebSocket），包括交易与账户相关的私有接口。
• Familiar with low-level performance optimisation techniques such as high-performance network programming, lock-free data structures, memory management, and coroutine scheduling. 熟悉高性能网络编程、无锁数据结构、内存管理、协程调度等底层优化方法。
• Experience maintaining 24/7 production systems with the ability to respond quickly to live incidents. 具备 24/7 生产环境维护经验，能够快速响应并处理线上故障。
• Strong English communication skills; Chinese proficiency is a plus. 良好的英文沟通能力，会中文者更佳。

Bonus Points | 加分项

• Experience developing or contributing to market-making systems that have run stably in production for 6+ months, covering multiple trading pairs and significant daily trading volume. 自主开发或参与过稳定上线不少于 6 个月、覆盖多个交易对、具备较高日均交易量的做市系统。
• Possession of a ready-to-use market-making system that can be commercialised (open-source repository or runnable demo available). 拥有可直接商用的做市系统（可提供开源仓库或可运行的 Demo）。

• • Prior experience working at top-tier exchanges, market makers, quantitative trading firms, or other leading institutions in the digital asset industry. 曾在头部交易所、做市商、量化交易机构或其他行业领先机构从事相关系统研发工作者优先。