Sr AI Engineer

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 leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.

About the Team/Role

We are seeking a highly skilled Senior AI Engineer to design and implement advanced agentic AI systems. In this role, you'll build production-ready AI agents that can reason across multiple steps You'll work with state of the art frameworks to create pipelines that combine LLM-based reasoning, knowledge grounding, and multi-agent orchestration. This is a high-impact role where you'll partner with product and engineering teams to design workflows into reliable, scalable agentic solutions for real-world use cases.

What will you accomplish:

• Build Agentic Systems – Implement multi-step reasoning agents. Retrieval-Augmented Generation (RAG), and integrations to tools, databases, and APIs.
• Orchestrate & Optimize – Design supervisor/sub-agent patterns, enable coordination across agents, and apply best practices for robustness, performance, and scalability.
• Deploy & Evolve – Deliver production-grade agentic AI workflows on cloud platforms, monitor and evaluate agent performance, and continuously fine-tune for quality and efficiency.
• Develop scalable services that connect with multiple eBay systems, establishing standards for reliability, and operational excellence.

What will you bring:

• Hands-on experience with multi-agent orchestration and supervisor patterns.
• Knowledge of RAG pipelines, memory management, and evaluation of agent performance.
• Experience designing custom evaluation metrics for reasoning steps, tool use correctness, and RAG pipeline performance.
• Ability to balance automatic evaluation with human-in-the-loop evaluation for complex workflows.
• Proficiency in Python and familiarity with backend cloud services.
• Proficiency in developing backend services using Java (Spring / Spring Boot).
• Experience with agentic architecture, including agent frameworks, tool-calling protocols and planning/execution patterns.
• Knowledge of reinforcement learning, planning algorithms, or autonomous reasoning.

Basic Qualifications:

• 6+ years of hands-on experience in developing RESTful APIs, microservices, and Kubernetes operators, with an emphasis on testability, scalability, and maintainability.
• Proven experience leading and contributing hands-on to AI/ML engineering and operations in large-scale production environments.
• Deep understanding of AI model lifecycle management, distributed systems, and integration of applications powered by artificial intelligence into customer-facing platforms.
• Develop and maintain highly scalable, efficient, performant & resilient capabilities, meeting availability targets of 99.99%.

Additional Details

The base pay range for this position is expected in the range below:

$196,800 - $262,700

Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including 401(k) eligibility and various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

If hired, employees will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

Remote roles are not eligible for U.S. visa sponsorship.

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 talent@ebay.com. 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. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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