Backend Engineer - Transaction

JD.COM; Paris; On-site; EUR 71,000 - 106,000; Full time

Job summary

JD.com is seeking a skilled Java backend engineer to develop and maintain transaction-related services using Java and Spring Boot. You will build core business processes for order and transaction workflows, ensuring data consistency and system reliability across critical processes.

You will participate in requirements discussions, technical design, and code reviews, documenting solutions and best practices.

Qualifications

• 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.

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.

Education

Bachelor's degree in Computer Science or related field

Tools

Java

Spring Boot

Job description

Who We Are

At JD.com, also known as JINGDONG, we are building one of the world’s most trusted technology and supply chain ecosystems. What started as a bold idea in China has evolved into a NASDAQ-listed, Fortune 44 global enterprise serving over 700 million active customers. Powered by advanced logistics, innovative technology, and a commitment to integrity, JD.com operates across retail, logistics, technology, property and more, creating solutions that make everyday life smarter, faster, and more connected.

Our Global Reach

JD.com is expanding its international footprint through a digitally intelligent, cross-border supply chain and world-class logistics network, supported by platforms such as Joybuy, which brings trusted products to customers worldwide. Today, our teams operate across China, the U.S., U.K., Netherlands, France, Germany, Spain, Brazil, Hungary, Japan, South Korea, Australia, Thailand, Vietnam, Malaysia, Indonesia, Saudi Arabia, the UAE and beyond, reaching customers in every corner of the world.

What We Offer

Joining JD.com means becoming part of a company where people, innovation, and impact go hand in hand. We offer a competitive salary, a great location, and a supportive, people-first culture where your growth truly matters. With access to global projects, learning opportunities, and an inclusive environment that values every voice, you’ll have the space to shape the future with us.

About The Team

You’ll be joining the JD.com team, which values collaboration, ownership, and a commitment to delivering high-quality results in a fast-paced, dynamic environment.

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.

At JD.com, we’re committed to building a diverse and inclusive workplace where everyone can thrive. We’re proud to be an equal opportunity employer and make all employment decisions without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, veteran status, or any other protected characteristic.