Backend Engineer , AML Engine Orchestration

Team Introduction
The mission of our AML team is to push next-generation machine learning algorithms and platforms for the recommendation system, ads ranking and search ranking in our company. We also drive substantial impact on core businesses of the company.

Responsibilities:
1. Resource Efficiency Optimization in Distributed Orchestration and Scheduling：

• Develop and extend distributed orchestration frameworks within the Kubernetes/Godel ecosystem. Select appropriate frameworks based on different business scenarios, and optimize cluster utilization and load balancing strategies according to the specific characteristics of each scenario;
• Integrate and expand AutoScaling and automatic parallelization capabilities for various models and tasks. Employ load modeling and analytic methods for different models to automatically optimize resource requests, achieving large-scale improvements in resource usage efficiency and global optimality;
• Responsible for preemption and re-scheduling mechanisms for services with different prioritties, and manage automatic resource multiplexing across different clusters and resource types; handle scheduling and load adaptation across multi-datacenter, multi-region, and multi-cloud environments.

2. Building Training System Architecture for Next-Generation Ultra-Large and Ultra-Deep Recommendation Models:

• Develop a flexible, elastic and robust distributed training runtime focused on hyper-scaled embeddings and large-scale GPU training;
• Design and optimize distributed computing APIs and runtimes geared towards future recommendation and ads model paradigms (e.g., reinforcement learning, fine-tuning and/or distillation);
• Collaborate with platform teams to enhance the diagnosability and usability of distributed training systems.

3. Constructing Online Orchestration Architecture for Next-Generation Recommendation Systems:

• Build a robust distributed model inference architecture for online learning scenarios involving hyper-scaled embeddings;
• Optimize the usability of online recommendation and ads model architectures and MLops workflows.

Minimum Qualifications

• Bachelor's degree or above, majoring in Computer Science, Engineering or related fields.
• Strong programming and coding experience with at least one modern language such as Golang, Python.
• Experience contributing to the large scale distributed systems, multi-tenant systems (architecture, reliability and scaling).
• Strong analytical abilities and problem solving.
• Good communication, self-motivation, engineering practice, documentation, etc.
• At least 3 years of relevant experience.

Preferred Qualifications

• Familiar with large-scale distributed scheduling systems like Kubernetes, Yarn, Flink and/or Spark
• Familiar with opensourced orchestration frameworks like VeRL, vLLM, Ray or TFX, etc.