工作职责概述Job Summary: 

高级Java开发不仅要设计和使用合适的技术方案高效率并且高质量地实现业务需要, 还要与其他职能员工进行良好的合作, 管理项目进度, 从技术方面带领其他team member对需求进行合理的设计设计, 以使整个team的资源利用, 效率, 以及质量达到最优。

A Senior Java Developer not only needs to design and use appropriate technical solutions to efficiently meet business needs, but also needs to collaborate effectively with other team members, manage project progress, and lead a small team from a technical perspective to optimize the team's resource utilization, efficiency, and quality.

预期工作目标/Job Expectations:

根据业务需求设计、开发和升级后端系统，特别是那些直接与移动应用程序交互的系统。

Design, develop, and upgrade backend systems based on business needs, especially those that interact directly with mobile apps.

优化已有系统，解决问题并提高其性能。

Optimize existing systems, resolve issues, and improve their performance.

编写单元测试和验证程序，执行自测，以保证发布质量。

Write unit tests and verification programs, and perform self-tests to ensure release quality.

编写方案设计文档和其他技术文档。

Prepare solution design documents and other technical documents.

与产品负责人、其他开发者、QA和其他人员协商，设计系统，并获取有关项目限制和能力、性能要求和接口的信息。

Confer with the product owner, other developers, QA, and other personnel to design the system and obtain information on project limitations and capabilities, performance requirements, and interfaces.

分析用户需求和软件需求，以确定在时间和成本限制内设计的可行性。

Analyze user needs and software requirements to determine feasibility of design within time and cost constraints.

带领小型开发团队，管理项目进度，并与团队内外成员协作，以高效、高质量地交付功能。

Lead a small dev team, manage project schedules, and collaborate with members both inside and outside the team to deliver high-efficiency, high-quality features.

参与团队和公司技术建设和创新，不断提高开发效率和质量。

Participate in the team and company's technological development and innovation, and continuously improve development efficiency and quality.

上述职责仅是此职位的一部分职责。公司可以在认为必要或适当时随时增加其他职责。

The duties and responsibilities described above may provide only a partial description of this position. This is not an exhaustive list of all aspects of the job.  Other duties and responsibilities not outlined in this document may be added as necessary or desirable, with or without notice.

知识、技能与能力/Knowledge, Skills and Abilities:

要求/Required:

具有 7 年以上 Java 开发经验。精通Java编程语言、开发环境和常用库。

7+ years of experience in Java development. Excellent knowledge of Java programming language, development environment, and libraries.

能熟练使用常用的数据结构和算法。

Proficient in using common data structures and algorithms.

精通 Spring 框架、缓存、数据库、RESTful 以及其他常用框架。

Excellent knowledge of Spring framework, cache, DB, RESTful, and other commonly used frameworks.

熟悉 Git、Kubernetes、Helm 以及其他开发和云工具。

Experience with Git, Kubernetes, Helm, and other development and cloud tools.

具备后端服务优化、重构和调试经验。

Experience with optimizing, refactoring, and debugging back-end services.

具有主导设计和开发较大规模高并发后端系统的经验。

Experience in leading the design and development of large-scale, high-concurrency backend systems.

英语读写和沟通能力优秀。

Excellent written and communication skills in English.

具备较强的沟通协作能力。

Strong communication skills and the ability to function effectively in a collaborative work environment.

具有高度的行动力和自我管理能力，以及较强的分析能力和求知欲。

Self-motivated and self-managed with a high degree of analytical ability and intellectual curiosity.

有前端、mobile app或电子商务项目经验者优先。

Experience with front-end, native app development, or e-commerce projects is a plus.

必备知识/Equipment Knowledge:

Java编程语言

Java programming language

数据结构和算法

Data structure and algorithms 

Spring框架

Spring framework

数据库, 缓存框架, 消息队列, 网络框架, 序列化框架等中间件和框架

Middleware and frameworks such as databases, caching frameworks, message queues, network frameworks, and serialization frameworks.

Git, Jira等开发工具

Development tools such as Git and Jira

云技术, 包括Kubernetes, Helm等

Cloud technologies, including Kubernetes, Helm, Docker, etc.

Role summary 

Location: Guang Zhou 

On-site  | Full-time 

As a full stack development engineer with more that 5 years of experience. You will serve as a core technical member of the development team, participating in the design, development, deployment, and full lifecycle maintenance of the company's cross-border payment system. You need to have a high pursuit of code quality, system stability, and security to ensure that you can provide secure, stable, and efficient services to users worldwide. 

What you’ll do 

• System design and development: Participate in the core architecture design and technical solution development of cross-border payment platforms, responsible for the development and iteration of core modules such as transactions, clearing and settlement, risk control, and account systems, and write high-quality and maintainable code. 

• Performance optimization and stability assurance: Monitor and optimize system performance, handle online failures, and ensure high availability of the system in high concurrency, multi time zone environments (target 7x24 hour stable operation). Build a full chain stress testing, monitoring, and log analysis system to quickly locate and resolve performance bottlenecks and anomalies. 

• Security and Compliance: Build a payment system that complies with international security standards and Chinese regulatory requirement, design and implement a fund security protection system, including transaction monitoring, API communication encryption, anti-attack strategies, etc., to ensure the security of user data and funds. 

• Deployment and Operations Collaboration: Proficient in using containerization technologies such as Docker and Kubernetes, collaborating with operations teams to achieve automated deployment, publishing, and governance of services.  

• Teamwork and documentation: Work closely with product, front-end, testing, and operation teams to complete requirement reviews and implement technical solutions. Write clear technical design documents, API documents, and system architecture documents. 

Who you are 

• 5+ years working experience in a high-tech or fin-tech company or has experience in core modules of cross-border payments or third-part payments. 

• Java Core: Proficient in Java language and JVM principles, with a deep understanding of multithreading, concurrent programming, collection frameworks, and performance tuning. 

• Mainstream frameworks: Proficient in Spring Boot, Spring Cloud and other mainstream open source frameworks, and understand their core principles. 

• Database and Middleware: Proficient in MySQL and SQL optimization, familiar with at least one NoSQL database (such as Redis) and its application scenarios. Proficient in using commonly used message middleware such as RocketMQ/Kafka. 

• Solid understanding of HTML5, CSS3, and JavaScript (ES6+). Familiarity with TypeScript is a plus. 

• Hands-on experience with React and modern state management. Familiarity with Next.js and Ant Design is preferred. 

• Basic knowledge of modern frontend build workflows (e libraries, bundlers) and version control (Git). 

• Distributed technology: Familiar with the concept of distributed systems, microservice architecture design and governance, familiar with common solutions such as distributed transactions, caching, locks, etc. 

• Excellent logical thinking, problem analysis and positioning skills, and technical problem-solving abilities. 

• Good teamwork spirit and cross-cultural communication skills, able to adapt to multi time zone collaboration. 

• Strong sense of responsibility and risk awareness, highly sensitive to financial security vulnerabilities. 

As a plus 

• Daily user of AI coding tools such as Cursor, GitHub Copilot, Claude Code etc; able to configure and govern usage effectively. 

• Proven ability to translate product requirements into high‑quality prompts and validate AI‑generated code with tests and static analysis. 

• Understands limitations, privacy, licensing, and security considerations for AI‑assisted code; adheres to org policy and data‑handling rules. 

• Experience building lightweight internal “AI agents” or scripts to automate repetitive engineering tasks (e.g., refactors, doc updates, test generation). 

Responsibilities:

• Participate in the development of backend systems for the company’s centralized exchange (CEX), providing technical support for core business operations.
• Design architectures for complex future payment-related systems; demonstrate strong capabilities in designing large-scale distributed systems while ensuring high-quality architecture that balances development, operational, maintenance, and reliability costs.
• Contribute to solution design and technical reviews for key engineering projects; conduct quality assessments, identify issues during system iteration, and help enhance team efficiency and development quality.
• Lead research and resolution of critical technical challenges, ensuring stability of the core systems.
• Participate in core architecture implementation, write high-quality code, train and guide developers, and help standardize engineering processes.
• Lead the design, development, and innovation of real-time computing systems.
• Drive the architectural evolution of the trading matching engine (handling tens of millions to hundreds of millions of daily requests).
• Lead the development of rule engines, variable platforms, and other mid-platform (middleware) systems.

Requirements:

• Bachelor’s degree in Computer Science or related field; expert-level proficiency in Java and its ecosystem, with 8+ years of hands-on development experience.
• Experience in developing and optimizing large-scale data aggregation, query, and computation systems.
• Experience with large-scale system refactoring; hands-on exposure to DDD, middleware platforms, and CI/CD is a strong plus.
• Deep understanding of Java-related frameworks such as Spring Cloud Alibaba, MyBatis—their design principles and internal mechanisms; strong knowledge of transactions and distributed transactions.
• Proficient in Redis and at least one MQ technology such as RabbitMQ or RocketMQ; familiarity with middleware such as SkyWalking, CAT, and scheduling/orchestration systems.
• Experience building or promoting core frameworks in large-scale companies is preferred.
• Familiar with common networking issues and capable of effective troubleshooting.
• CEX experience is mandatory.

Company Overview

At Zuora, we do Modern Business. We’re helping people subscribe to new ways of doing business that are better for people, companies and ultimately the planet. It’s an approach resulting from the shift to the Subscription Economy that puts customers first by building recurring relationships instead of one-time product sales and focuses on sustainable growth. 

Through our leading expertise and multi-product suite - including Zuora Billing and Zuora Revenue — we provide a unified monetization and revenue automation platform that connects quoting, billing, payments, and revenue recognition end to end. Our solutions give finance and revenue teams a single source of truth for subscription economics, streamline ASC 606-compliant revenue recognition, and enable real-time insights into growth, profitability, and customer lifetime value.

We are transforming all industries and working with the world’s most innovative companies to monetize new business models, nurture subscriber relationships and optimize their digital experiences.

The Team & Role

The Beijing Billing Core team is a specialized engineering powerhouse and the heartbeat of Zuora’s global platform. As a mission-critical core team, we architect the foundational systems that power the world’s most sophisticated enterprise businesses. We operate at the intersection of high-scale distributed systems and real-time data innovation, prioritizing long-term engineering excellence and robust, scalable design.

The Opportunity: Leading the Strategic Evolution

We are currently driving a high-stakes evolution from traditional enterprise architecture to an intelligent, event-driven ecosystem.

• Mission-Critical Impact: Your work sits at the center of the global economy, directly enabling the growth of industry-leading organizations.
• The AI-Augmented Frontier: We are pioneering the future of software delivery by embracing an AI-first engineering culture. Our team leverages advanced AI development environments to navigate complex architectural puzzles, allowing our engineers to focus on high-level systems thinking and innovation.
• Global Technical Leadership: This is a rare opportunity to bridge the gap between stable, world-class foundations and greenfield data engineering within a high-talent global hub.

The Mission: Architecting the Future of Billing

Your mission is to ensure our platform remains the definitive global standard for reliability and intelligence. You will solve the industry’s most challenging scale and consistency problems, building a self-healing, high-concurrency engine that defines the future of digital commerce.

This is a location specific position that requires you to come into the office regularly to be most effective. 

What you’ll do

• Architect Mission-Critical Systems: You will design and evolve high-performance, distributed services within our core Java environment. You will be responsible for the architectural stewardship of systems that process billions of transactions, ensuring they remain scalable, robust, and enterprise-grade.
• Drive Real-Time Data Innovation: You will lead the development of sophisticated stream processing pipelines and event-driven architectures. By bridging the gap between foundational data stores and real-time analytics, you will enable the "Intelligence Layer" that defines the future of our global platform.
• Pioneer AI-Augmented Engineering: You will embrace an AI-first development culture, utilizing advanced tools like Claude Code and Codex to navigate complex logic and solve deep architectural puzzles. You will champion engineering excellence, prioritizing disciplined, maintainable design over temporary workarounds.

What You’ll Achieve: Impact & Outcomes

Instead of a list of tasks, these milestones focus on your growth and impact within the team.

• In your first 3 months: You will develop a thorough understanding of our core engine and streaming pipelines. You will successfully use AI-assisted tools to deliver high-quality features and enhancements within our distributed environment.
• By month 6: You will take ownership of a specific service or functional area. You will implement complex streaming or backend features, ensuring they are performant and integrate seamlessly with our real-time data layer.
• Within your first year: You will contribute to the long-term reliability of our platform by resolving technical bottlenecks. You will collaborate with the team to adopt AI-augmented practices and play a key role in the transition toward a more responsive, event-driven architecture

Your Experience (Must-Haves)

To ensure an inclusive applicant pool, we have limited this to core skills essential for success in this role.

• Strong Java Foundations: Significant experience building and scaling services within large codebases using Modern Java, the Spring Framework, and ORM/Persistence Frameworks; committed to delivering clean, maintainable, and disciplined code.
• Distributed Systems & Data Engineering: Expert in architecting stream processing pipelines and managing data consistency in high-concurrency, data-intensive systems; proficient in leveraging Apache Kafka, Apache Flink, Apache Beam, and Change Data Capture (CDC) alongside MySQL, ClickHouse, and Redis to build scalable architectures that support evolving schemas and massive data growth.
• Infrastructure & Deployment: Proven ability to architect and manage cloud-native backend services using AWS and Kubernetes to ensure high availability and system resilience.
• AI-Assisted Productivity: Proficient in utilizing AI-assisted development tools such as Claude, Codex, and Cursor to solve complex engineering puzzles efficiently and increase overall technical leverage.

Nice to Haves

These are not required for application but are areas where you can add immediate value.

• Data & Analytics: Experience with relational database optimization or building real-time data synchronization solutions.
• Cloud Operations: Familiarity with deploying and monitoring services in cloud-native or containerized environments.
• Collaborative Approach: Experience working in a global engineering hub and a desire to participate in technical discussions and learning.

#ZEOLife at Zuora

As an industry pioneer, our work is constantly evolving and challenging us in new ways that require us to think differently, iterate often and learn constantly—it’s exciting. Our people, whom we refer to as “ZEOs" are empowered to take on a mindset of ownership and make a bigger impact here. Our teams collaborate deeply, exchange different ideas openly and together we’re making what’s next possible for our customers, community and the world. 

As part of our commitment to building an inclusive, high-performance culture where ZEOs feel inspired, connected and valued, we support ZEOs with:

• Competitive compensation, variable bonus and performance reward opportunities, and retirement programs
• Medical, dental and vision insurance
• Generous, flexible time off 
• Paid holidays, “wellness” days and company wide end of year break
• More than 10 weeks  fully paid parental leave 
• Learning & Development stipend
• Opportunities to volunteer and give back, including charitable donation match
• Free resources and support for your mental wellbeing  

Specific benefits offerings may vary by country and can be viewed in more detail during your interview process.

Location & Work Arrangements

Organizations and teams at Zuora are empowered to design efficient and flexible ways of working, being intentional about scheduling, communication, and collaboration strategies that help us achieve our best results. In our dynamic, globally distributed company, this means balancing flexibility and responsibility — flexibility to live our lives to the fullest, and responsibility to each other, to our customers, and to our shareholders. For most roles, we offer the flexibility to work both remotely and at Zuora offices.

Our Commitment to an Inclusive Workplace

Think, be and do you! At Zuora, different perspectives, experiences and contributions matter. Everyone counts. Zuora is proud to be an Equal Opportunity Employer committed to creating an inclusive environment for all.

Zuora does not discriminate on the basis of, and considers individuals seeking employment with Zuora without regards to, race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with a disability, genetic information, political views or activity, or other applicable legally protected characteristics.

We encourage candidates from all backgrounds to apply. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us by sending an email to assistance(at)zuora.com.

WOO X is a global centralised crypto futures and spot trading platform offering best-in-class liquidity and price execution. WOO X has an average daily volume exceeding $1.5 billion and is home to hundreds of thousands of traders worldwide. WOO X traders benefit from radical transparency through our industry-first live Proof of Reserves & Liabilities dashboard and the company's mission to maintain the trust of its growing community of traders. Our team of about 180 highly talented employees works from 12 cities across eight countries in Europe and Asia 🚀

WOO X is a global centralised crypto futures and spot trading platform offering best-in-class liquidity and price execution. WOO X has an average daily volume exceeding $1.5 billion and is home to hundreds of thousands of traders worldwide. WOO X traders benefit from radical transparency through our industry-first live Proof of Reserves & Liabilities dashboard and the company's mission to maintain the trust of its growing community of traders. Our team of 200+ highly-talented employees works from 12 cities across eight countries in Europe and Asia 🚀

Our vision is to inspire confidence, higher performance, and joy in every user. We have a mission to provide the best liquidity on the best terms. We compete not just on price execution but also on integrity, user experience, innovative tools, and global opportunities.

About the opportunity:

We are looking for a Staff / Senior Backend Engineer who can join us along this mission and vision. You’ll become an integral part of the Backend team, responsible for all the development of the backend services that support our WOO X and internal tools 7*24. The heroes keep improving the performance of our trading system and optimising the stability and scalability of our whole ecosystem. Interested? Keep on reading!

What you’ll be working on:

• Design, build, and optimize backend services for a high-performance, low-latency trading platform.
• Develop and maintain robust, scalable APIs (RESTful and WebSocket) using Java + Spring Boot, supporting real-time trading and market data.
• Architect and implement highly concurrent systems that ensure 24/7 system reliability and throughput.
• Collaborate closely with cross-functional teams (Product, Business, DevOps) to align technical solutions with business goals.
• Troubleshoot complex production issues, identify root causes, and propose effective, scalable fixes.
• Contribute to system architecture and design discussions, and promote best engineering practices through code reviews and technical mentorship.
• Demonstrate potential for technical leadership, with the ability to drive initiatives and influence technical direction across the team.

Why work with us:

Join us in realising our vision in advancing decentralisation, and leading innovation in CeFi. Enjoy work flexibility, a supportive team, and an environment that nurtures your ideas. Plus, expect a performance-based annual bonus for all contributors at WOO 💪

About you:

• 5+ years of backend development experience, with deep proficiency in Java and Spring Boot / Spring Cloud.
• Strong knowledge of multithreading, concurrency models, and asynchronous programming.
• Experience building high-concurrency, high-availability backend systems in production environments.
• Familiar with message brokers (e.g., Kafka, RocketMQ), databases (MySQL/PostgreSQL), and in-memory stores (e.g., Redis).
• Solid experience with containerized environments (Docker, Kubernetes) and Linux-based systems.
• Proven track record of independently solving complex backend/system-level problems.
• Excellent communication skills and ability to work effectively with cross-functional stakeholders.
• Previous experience in financial services, trading systems, or crypto exchanges is a strong plus.
• Experience mentoring others or demonstrated potential for technical leadership is a significant advantage.

Getting the job

We're actively seeking talented individuals to join our team outside of our typical hiring schedule. This proactive approach allows us to connect with exceptional candidates like you even before specific positions become available.

On average, successful candidates go through five rounds of interviews and tests. Our hiring process begins by meeting with our People Team, who help facilitate the process of placing you in your new role. You can expect to share your experience and ideas in online video interviews with our hiring team, made up of management and potential new colleagues.

Submitting your resume now ensures that you're first in line when new opportunities arise. By doing so, you'll have a head start in the selection process and get a chance to showcase your skills and experience.

Get started on your application here!