JD.COM
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Other Retail Shops · 10000+ Employees · Beijing, China
At JD.com (JINGDONG), we’re building one of the world’s most trusted technology and supply chain ecosystems. What started as a bold idea in China is now a global business serving over 700 million customers. Powered by advanced logistics, technology and a commitment to innovation and integrity, we operate across retail, logistics, technology, property and more, creating smarter, faster, more connected experiences for customers around the world.
What employees say
+ Great Salary Good managers everyone is super helpful and approachable We are all learning together great sense of culture here the Chinese include us in there traditions and c
− bit of pain to get to the site if you don't drive
More reviews on the company profile.
Interview experience · Analyst
All behavioral questions and technical was also a part of it you should go through the company website properly All behavioral questions and technical was also a part of it you should go through the company website prope
Average difficulty · India · 3 reports
More interview insightsJob description
Overview
JD.com is looking for a Full Stack Engineer to work on their global AI Commerce platform, responsible for critical components such as AI model routing, pricing systems, reliability engineering, and performance optimization.
Responsibilities
- Design and implement multi-strategy AI model routing engine ensuring low-latency decision making and auditability
- Build multi-tiered compute pricing and billing engines for fine-grained cost accounting and anti-abuse controls
- Deploy and optimize microservices architecture with caching, circuit breakers, database transactions, and high availability
- Develop data pipelines integrating mainstream AI model capability testing, user feedback aggregation, and real-time price cache synchronization
- Ensure performance through cold-start optimization, load testing validation, online learning, and real-time statistics
Qualifications
- 3+ years of full-stack development experience
- Deep understanding of at least 2 of the following dimensions:
- AI model cognitive: Experience with LLM models (OpenAI, Anthropic, Google, domestic models); ability to assess API protocols and cost structures
- AI aggregation cognition: Experience with multi-model aggregate architecture; understanding of routing, load balancing, failure recovery, and cost optimization
- AI intelligent routing/commerce understanding: Experience in intelligent decision systems like recommendation/routing/scheduling/bidding/billing
- Strong proficiency with full-stack development using Go or Python backend with Next.js/React frontend
- Experience in low-latency decision system (recommendation/routing/scheduling/bidding)
- Mastery in Redis and PostgreSQL, including algorithm understanding of online learning and real-time statistics
- Experience with SaaS billing/subscriptions/payment systems integration
- Cloud-native/containerized deployment/operations familiarity
Nice to have
- Experience with AI model routing/model scheduling/compute scheduling
- Background in recommender systems/ad engines/e-commerce transaction systems
- Knowledge of multi-armed bandit/A/B testing framework design
- Familiarity with e-commerce/payment/billing system development
- Exposure to SLA 99.9%+ system operations and maintenance
- Open source project contributor (GitHub projects with 500+ stars)
Benefits
- Competitive salary
- Great working location
- Supportive, people-first culture where growth matters
- Access to global projects
- Learning opportunities
- Inclusive environment valuing every voice
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