Software Engineer - Recommendation

Overview

(NASDAQ: JD) is building a technologically advanced global ecosystem across retail, logistics, technology, and related services. This role reports to the team responsible for backend systems supporting recommendation and discovery, and is based in London, UK.

• Design and develop backend services supporting recommendation and discovery scenarios.
• Integrate machine learning models for personalised ranking and recommendation using microservice architectures.
• Build and maintain backend applications using Java and Spring Boot.
• Collaborate with machine learning engineers to support model deployment, serving, and optimisation.
• Ensure system scalability, reliability, and low-latency performance under high traffic.
• Document system design decisions and share backend best practices within the team.
• Work onsite in London, UK.

• Bachelor's degree (or equivalent) in Computer Science or a related field.
• 3+ years of experience in Java programming and Spring Boot.
• Experience related to search or recommendation systems, such as ranking, retrieval, or advertising.
• Experience with microservices architecture and service deployment.
• Ability to communicate effectively in English and Chinese.

• Experience supporting ML-enabled search systems in production environments.
• Experience working on high-concurrency or low-latency services.
• Experience in large internet or consumer-facing technology companies.
• Familiarity with distributed systems design.

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, colour, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. We make employment decisions without regard to any other protected characteristic.