OneBullEx is a crypto futures exchange startup designed for speed, reliability, and innovation. Our platform offers advanced futures trading capabilities, including AI-powered 300 SPARTANS trading bots for automated, high-precision strategies. We combine a user-focused interface with transparent risk management, empowering traders to navigate the fast-moving digital asset markets with confidence.

OneBullEx 是一家旨在实现极致速度、可靠性与创新的加密货币期货交易所初创企业。我们的平台提供先进的期货交易功能，包括由 AI 驱动的"300 SPARTANS"交易机器人，助力实现高精度的自动化交易策略。我们将以用户为中心的界面与透明的风险管理相结合，赋予交易者十足的信心去应对瞬息万变的数字资产市场。

We are seeking a skilled App Engineer to lead the development and optimization of our mobile trading experience. In this role, you will leverage Kotlin Multiplatform to build high-performance, cross-platform features, ensuring our traders have seamless, low-latency access to spot and futures markets on both Android and iOS.

我们正在寻找一名资深的 APP 工程师来领导我们移动端交易体验的开发与优化。在此职位中，你将利用 Kotlin Multiplatform 构建高性能的跨平台功能，确保我们的交易者在 Android 和 iOS 端都能无缝、低延迟地访问现货和期货市场。

Core Responsibilities / 工作职责

Mobile Development & Optimization / 交易所APP开发与优化

* Responsible for the development, maintenance, and optimization of the exchange APP, supporting core functions such as spot and futures trading.

* 负责交易所APP的开发、维护和优化，支持现货、合约交易等核心功能。

Cross-Platform Engineering / 跨平台开发

* Utilize Kotlin and Kotlin Multiplatform (KMP) to develop cross-platform applications, ensuring compatibility across Android and iOS platforms.

* 使用Kotlin和Kotlin Multiplatform开发跨平台APP，确保Android和iOS平台的兼容性。

Data Visualization & Component Integration / 组件集成与可视化

* Integrate TradingView components to implement high-quality K-line charts and trading data visualization.

* 集成TradingView组件，实现高质量的K线图和交易数据可视化。

Real-Time Data Systems / 实时数据传输

* Develop and maintain WebSocket-based real-time data transmission to ensure low-latency updates of trading data.

* 开发和维护基于WebSocket的实时数据传输功能，确保交易数据低延迟更新。

Architecture & Collaboration / 架构设计与协作

* Participate in APP architecture design, optimize code structure, and improve performance and UX. Collaborate with backend teams to design and integrate APIs.

* 参与APP的架构设计，优化代码结构，提升性能和用户体验；与后端团队协作，设计和对接API。

Quality Assurance / 代码质量与保障

* Write high-quality code, participate in peer reviews, and work with testing teams to troubleshoot and fix issues to ensure stability.

* 编写高质量代码，参与代码评审；配合测试团队进行问题排查和修复，保障APP的稳定性和可靠性。

Requirements / 任职要求

Technical Expertise / 技术背景

* 3+ years of APP development experience with proficiency in Kotlin and familiarity with Android development workflows.

* 3年以上APP开发经验，精通Kotlin编程语言，熟悉Android开发流程。

KMP Experience / 跨平台能力

* Proven experience with Kotlin Multiplatform (KMP) for cross-platform code reuse().

* 具备Kotlin Multiplatform开发经验，能够实现跨平台代码复用。

Exchange Business Logic / 行业认知

* Deep understanding of exchange operations, including spot/futures trading, matching engines, and liquidity aggregation.

* 熟悉交易所业务，深入理解现货、合约交易、交易撮合和聚合的业务逻辑。

Specialized Tools / 专业工具

* Skilled in using TradingView for K-line integration and WebSocket technology for real-time data processing.

* 熟练使用TradingView，具备集成和优化K线图的经验；熟悉WebSocket技术，能够实现实时数据传输和处理。

Communication & Location / 沟通与地点

* Excellent Chinese communication skills. Ability to work remotely or relocate to Dubai.

* 具备良好的中文沟通能力；能够适应远程工作或愿意在迪拜工作。

Bonus Qualifications / 加分项

Hybrid Technologies: Familiarity with Flutter or React Native. 熟悉其他APP混合开发技术，如Flutter或React Native.

Full-Stack Mobile: Proficiency in iOS development (Swift) or full-stack cross-platform capabilities. 熟悉 iOS 开发（如 Swift)，具备跨平台开发的全栈能力。

High-Concurrency Systems: Experience in low-latency data transmission for high-concurrency trading apps. 有高并发实时交易APP开发经验，熟悉低延迟数据传输优化。

DevOps & Design: Familiarity with CI/CD deployment or UI/UX design experience. 熟悉CI/CD流程；具备UI/UX设计经验，能够优化用户交互。

App Engineer (Kotlin) / APP工程师