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Back-End Developer (Java)

Joybuy Retail — United Kingdom · Posted ~23 hours ago

Mid Onsite

Skills

Java Spring Boot backend development transaction systems high-concurrency systems REST/backend services code review data consistency English communication Chinese communication backend services

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Summary ✨ AI‑Generated

A London-based engineering team is seeking a Back-End Developer specializing in Java and Spring Boot. You will develop and maintain transaction services, build core business workflows, ensure consistency and reliability under high concurrency, and contribute to technical design, code reviews, security, and engineering standards. English and Chinese communication skills are required.

Highlights

Build reliable, high-concurrency transaction systems in an on-site London role, with opportunities to contribute to technical design, code reviews, business-critical backend services, and engineering best practices.

Description

Key Responsibilities: Develop and maintain transaction-related backend services using Java and Spring Boot. Build core business processes for order and transaction workflows.Ensure data consistency, system reliability, and correctness across critical business processes.Support stable operation of transaction systems under high concurrency.Participate in requirement discussions, technical design, and code reviews.Document and share technical solutions and best practices.Work onsite in London. Minimum Qualifications: Bachelor's degree (or equivalent) in Computer Science or a related field.3+ years of experience in Java programming and Spring Boot.Experience building or maintaining core business systems.Experience working in structured development environments.Awareness of data protection, security, or compliance requirements in transaction systems Ability to communicate effectively in English and Chinese. Preferred Qualifications: Experience in large internet or e-commerce companies.Experience with high-reliability or transaction-intensive systems.Familiarity with distributed systems or service-oriented architectures.JD.com is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.