Sr MTS Machine Learning Engineer
Core
Senior technical leader for high-impact ML initiatives in eBay's Ads teams, shaping intelligent marketplace experiences for buyers and sellers.
Role type
Senior IC machine learning engineer (technical lead)
Builds
Scalable backend and ML systems for sponsored search, item recommendations, ranking, retrieval, and GenAI-powered capabilities
Domain
E-commerce / Applied Machine Learning
Deliverable
production ML models
Required skills
Production engineering practices, Object-Oriented programming (Scala, Java), Cloud services, Big data pipelines, Distributed processing frameworks (Apache Hadoop, Spark, Flink), Python, Modern ML frameworks (PyTorch, TensorFlow), Serving frameworks (TensorFlow Serving, TorchServe, NVIDIA Triton), LLM operations (LangChain, Hugging Face Transformers), Designing scalable distributed systems, RESTful/gRPC APIs, ML monitoring and incident response
Preferred skills
Experience with serving frameworks, LLM operations libraries
Responsibilities
Provide technical leadership for ML initiatives across Ads and marketplace discovery, Champion software engineering best practices (code reviews, testing, documentation), Design and operate scalable backend and ML systems, Collaborate with researchers to translate algorithms into production code, Mentor team members through code reviews and architecture design, Drive customer and business impact through A/B testing
Seniority
Senior, hands-on IC with mentorship responsibilities
