Jobs

eBay is the world's largest online marketplace - where practically anyone can sell practically anything at any time. With a presence in 39 markets, including the U.S., and approximately 84 million active users worldwide, eBay has changed the face of Internet commerce. In 2007, the total value of sold items on eBay's trading platforms was nearly $60 billion. This means that eBay users worldwide trade more than $1,900 worth of goods on the site every second.

We are building a new team focused on using machine learning for merchandising and targeting on eBay with an initial charter to build a personalized merchandising system with near real-time feedback. If you are excited about building machine learning systems that serve a huge web audiences and advanced data mining solutions on petabytes of data - then this job is for you!

To learn more about the work and the team, please visit the LinkedIn profile of the hiring manager - Harshal Deo

Principal Engineer / Applied Scientist

About the Opportunity This is a hands-on position with algorithm development and tuning responsibility for on line machine learning systems. The ideal candidate will be either a strong engineer with machine learning experience or a scientist with hands-on programming experience.

Primary Responsibilities

• Design and develop machine learning algorithms and solutions.
• Design, train and deploy machine learning based models.
• Build, enhance and maintain various software components of the machine learning platform.
• Learn / understand marketing business problems and design creative and scalable solutions.
• Analyze large datasets - built from Petabyte scale data - to tune the models and algorithms for relevancy and targeting.

• Experienced engineer with machine learning experience or a scientist with hands-on programming experience.
• Machine learning / information retrieval / large data mining /Text mining experience.
• Understanding of statistics, Bayesian probability.
• Expert level programming skills with one scripting language like Perl / Python.
• Strong programming skills specifically working with C/C++ or Java. Experience with large databases / files and in memory data structures.
• Large dataset experience preferably working with complex enterprise / web datasets.

• BS / MS in computer science or related field and 7 to 10 years of related programming experience or PhD in computer science with 3 to 5 years of hands on programming experience.
• Demonstrated ability to independently design / develop and test large and complex applications in a 'large data' environment is a must.