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Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.
At eBay, we’re more than a global ecommerce leader. We’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and reinventing the future of ecommerce for enthusiasts.
About the team and the roleThe Foundation Models team builds next-generation Generative AI capabilities and products that power intelligent experiences across eBay at global scale. We work across the full AI lifecycle, from model development and experimentation to evaluation, optimization, productionization, and integration into customer-facing products and platform capabilities.
We are looking for a Machine Learning Engineer, Generative AI - Tech Lead to join the team as an individual contributor. You will take technical ownership of Generative AI capabilities from experimentation through production, combining hands-on machine learning and software engineering with technical leadership. Working closely with applied researchers, engineers, product teams, and AI platform teams, you will help shape technical approaches, lead execution, and build scalable AI capabilities that deliver measurable impact for eBay customers.
This is a hands-on technical leadership role for someone who combines strong machine learning expertise with solid software engineering judgment and enjoys turning advances in Generative AI into reliable products and capabilities.
What you will accomplishLead 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.
Minimum 5 years of hands-on experience developing and deploying machine learning systems, with a track record of owning significant ML capabilities from development through production.
Strong expertise in modern machine learning and experience in one or more areas such as Large Language Models, multimodal models, NLP, agents, retrieval, model adaptation, or learning from feedback.
Experience across the ML lifecycle, including model training or fine-tuning, evaluation, deployment, inference, monitoring, and performance optimization.
Strong software engineering skills, particularly in Python and modern ML frameworks such as PyTorch, together with experience designing scalable, reliable, and maintainable production systems.
Demonstrated technical leadership, including making architectural decisions, driving technical execution, mentoring others, and navigating tradeoffs across model quality, latency, cost, and reliability.
Ability to independently lead complex technical problems and collaborate effectively across research, engineering, product, and platform teams to deliver measurable customer and business impact.
Additional Details
eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, veteran status, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at [email protected]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.
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Skills Required
- At least 5 years of hands-on experience developing and deploying machine learning systems
- Experience owning significant machine learning capabilities from development through production
- Strong expertise in modern machine learning
- Experience with one or more of large language models, multimodal models, NLP, agents, retrieval, model adaptation, or learning from feedback
- Experience across model training or fine-tuning, evaluation, deployment, inference, monitoring, and performance optimization
- Strong software engineering skills in Python
- Experience with modern machine learning frameworks such as PyTorch
- Experience designing scalable, reliable, and maintainable production systems
- Technical leadership experience, including architectural decisions, technical execution, mentoring, and navigating quality, latency, cost, and reliability tradeoffs
- Ability to independently lead complex technical problems and collaborate across research, engineering, product, and platform teams
eBay Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about eBay and has not been reviewed or approved by eBay.
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Healthcare Strength — Medical, dental, and vision coverage begin on the date of hire, complemented by mental health resources, an EAP, disability coverage, FSAs, and wellness initiatives.
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Leave & Time Off Breadth — A robust mix of PTO, paid holidays, flexible work styles, parental leave, and a four‑week paid sabbatical after five years supports work‑life balance.
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Equity Value & Accessibility — Total compensation commonly includes stock components, with access to an employee stock purchase plan at a discount and stock awards enhancing overall packages.
eBay Insights
What We Do
eBay Inc. is a global commerce leader that connects millions of buyers and sellers around the world. We exist to enable economic opportunity for individuals, entrepreneurs, businesses and organizations of all sizes. Our portfolio of brands includes eBay Marketplace and eBay Classifieds Group, operating in 190 markets around the world. We offer sellers the ability to grow a business with little barrier to entry regardless of size, background or geographic location. We never compete with our sellers. We win when our sellers succeed. Buyers who shop on our Marketplace and Classifieds platforms enjoy a highly personalized experience with an unparalleled selection at great value.
