Senior ML Engineer (Query Science Team)

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.

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.

Who Are We?

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. ​The Query Science team is at the core of eBay’s Search product and it is composed of passionate professionals united in our mission to make searching and buying at eBay as efficient and enjoyable as possible. Innovation is at the heart of everything we do. We believe that by understanding the intent and behaviors of our buyers, we can tailor our services to provide the best possible shopping experience, setting new standards in the e-commerce industry. Join us, and be part of a forward-thinking company that values creativity, hard work, and innovation.

What Will You Do?

We are looking for a Senior Machine Learning Engineer, who takes pride in creating simple ML solutions to apparently-complex problems. Our Engineering tasks typically involve at least one of the following :

Building a pipeline that processes up to billions of items; frequently employing ML models on these datasets

Creating services that provide Search or other Information Retrieval capabilities at low latency on datasets of hundreds of millions of items

Crafting sound API design and driving integration between our Data layers and Customer-facing applications and components

Designing and running A / B tests in Production experiences in order to vet and measure the impact of any new or improved functionality

If you love a good challenge, and are good at handling complexity - we’d love to hear from you!

Job Responsibilities

Collaborate with Engineering and Product Management on shaping the department’s vision and roadmap

Help design cross-team software infrastructure and integration methods

Design, deliver, and maintain significant features in data pipelines, ML processing, and / or service infrastructure

Optimize software performance to achieve the required throughput and / or latency

Work with your manager, peers, and Product Managers to scope projects and features

Take part in cross-team efforts, taking ownership of a business problem and ensuring the different teams are in sync and working towards a coherent technical solution

Come up with a sound technical strategy to achieve the required results, taking into consideration the project goals, timelines, and expected impact

Mentor more junior peers, as well as review their work and provide frequent feedback and advice

Promote coding standards and craftsmanship within the team through careful code review, discussion and open, constructive feedback

Take active part in knowledge sharing across the organization - both teaching and learning from others

Requirements

Passion and commitment for technical excellence

Master’s or PhD in Computer Science, Artificial Intelligence, Information Retrieval, or a related field

7+ years of software design and development experience, tackling non-trivial problems in backend service and / or data pipelines, including operation and monitoring

Solid foundation in Computer Science with strong proficiencies in Data Structures, Algorithms, Object-Oriented Programming, and Software Design

Comfortable using a variety of programming languages on a daily basis, such as Java / Scala, Python, C / C++

Experience with Big Data processing solutions (Hadoop, Spark, …), microservice frameworks (e.g. Java Spring), NoSQL databases and / or distributed document storage solutions (Apache Ignite, Cassandra, Redis, Solr, …)

Experience with cloud computing platforms and solutions (AWS, GCP, Kubernetes, …)

Excellent verbal and written communication and collaboration skills

Thought leadership and teaching skills

LI-AZ1

LI-Hybrid

Please see the for information regarding how eBay handles your personal data collected when you use the eBay Careers website or apply for a job with eBay.

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 . We will make every effort to respond to your request for accommodation as soon as possible. View our to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.

Jobs posted with location as "Remote - United States (Excludes : HI, NM)" excludes residents of Hawaii and New Mexico.