Joybuy
Software Engineer (Java)
London
Posted about 17 hours ago
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Key Responsibilities:
- Lead technical decision-making and architecture design for JD’s international core systems, ensuring high standards of performance, availability, concurrency, security, and scalability.
- Design and oversee complex system architectures and drive productization efforts, maintaining architectural quality through hands-on coding, continuous performance evaluation, and system optimization.
- Architect and develop backend services using Java and Spring Boot, establishing engineering best practices and reusable technical frameworks.
- Build and maintain backend systems for JD’s operation centres, ensuring seamless integration across global infrastructure.
- Identify, assess, and mitigate technical risks throughout project implementation, covering monitorability, maintainability, grey release strategies, and rollback capabilities.
- Research, evaluate, and promote new technologies and methodologies, identifying integration opportunities within global architectures to strengthen the team’s technical capability and architectural foresight.
- Provide technical leadership, mentor engineers, and continuously optimize team collaboration and engineering best practices.
- Work onsite in London, UK.
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Minimum Qualifications:
- Bachelor’s degree in Engineering, Computer Science, Mathematics, or a related technical field.
- 5+ years of backend development experience with strong Java expertise, including JVM fundamentals, concurrency, multithreading, and performance tuning.
- Proven experience designing architectures for large-scale e-commerce platforms; international system experience preferred.
- Strong server-side architecture skills with solid knowledge of middleware such as MySQL, Redis, Kafka, and distributed systems in high-availability, high-concurrency environments.
- Excellent coding standards with a passion for technology and open-source learning.
- Strong analytical, problem-solving, and learning abilities with a proactive mindset.
- Demonstrated team leadership experience and effective communication skills in both Chinese and English.
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Preferred Qualifications:
- Work experience in large-scale ecommerce companies.
- Experience in supply chain, fulfilment, logistics, or marketing systems.
- Experience in UK and European business.
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Skills
Java
Spring Boot
JVM
Concurrency
Multithreading
Performance Tuning
MySQL
Redis
Kafka
Distributed Systems
System Architecture
Backend Development
E-commerce Platforms
Technical Leadership
English
Chinese
Location