Tech Lead Machine Learning Engineer

eBayAmsterdamOn-siteFull-time12 Sept 2026

eBay is seeking a Tech Lead Machine Learning Engineer for its Foundation Models team in Amsterdam. The role involves hands-on technical leadership in Generative AI, taking capabilities from experimentation to production, requiring at least 5 years of ML experience and strong Python and PyTorch skills.

What you'll do

Lead the technical design and delivery of Generative AI and machine learning capabilities, taking them from experimentation and prototyping through production deployment and continuous improvement.
Build systems involving LLMs, multimodal models, agents, retrieval and context, embeddings, model adaptation, and learning from feedback, while remaining hands-on in implementation and experimentation.
Make technical and architectural decisions across the ML lifecycle, including data, model training and fine-tuning, evaluation, deployment, inference, monitoring, and continuous improvement.
Partner with applied researchers and engineers to translate promising research into scalable production capabilities, guiding technical execution and helping others solve complex implementation challenges.
Drive improvements in model and system quality while balancing latency, cost, scalability, reliability, maintainability, and observability in production.
Collaborate across research, engineering, product, and platform teams, mentor other engineers, and contribute to strong technical, engineering, and experimentation practices.

What you need

Must-have

PythonPyTorchLarge Language Modelsmultimodal modelsNLPagentsretrievalmodel adaptation

Soft skills

technical leadershipmentoringcollaborationcommunication

Machine LearningGenerative AITech LeadecommercePythonPyTorchLLMsAmsterdamFull-timeOn-site

/What you'll do

/What you need

Must-have

Soft skills

What you'll do

What you need