Principal Data Scientist

Location: Menlo Park, CA

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Lex Machina provides Legal Analytics to companies and law firms, enabling them to craft successful litigation strategies, win cases, and close business. We are the pioneers of Legal Analytics and our award-winning product is used by global corporations such as Google, eBay, Yahoo!, IBM, and Nike, as well as prominent law firms like Wilson Sonsini, Fish & Richardson, Greenberg Traurig, and Fenwick & West. We launched Lex Machina in 2011 for patent litigators and are now expanding Legal Analytics to all areas of the law with the help of LexisNexis, our parent company. In joining us you will help us answer: What really happens when companies and people end up in court?

The Principal Data Scientist will u se your knowledge of Natural Language Processing, Machine Learning, and Data Science to improve Lex Machina’s underlying dataset as we bring Legal Analytics to all areas of the law. As a member of our tight-knit remote product and engineering team, you will work with in-house legal experts, customers, and our design team to integrate new legal content and improve our analytics. Our NLP systems are written in Java and Python and deployed in Google Cloud Services. We use a number of proprietary tools as well as third party libraries such as scikit-learn and pytorch.

A Typical Week

  • You will write and deploy your own new code creating new insights into litigation behavior.

  • You work with product leaders and legal experts to help us decide what to build and whether what we built is working.

  • You spend time learning about new technologies to produce more reliable and explainable results.

  • Your code is reviewed by other members of the engineering team, and you review their code too.

  • You invest time in the team by helping others with their tasks and professional development, by suggesting ideas, sharing best practices, and pairing occasionally.


  • You have been building natural language processing software professionally for 5+ years and have successfully released software to customers.

  • You write code in Python or Java.

  • You think querying complex legal data using SQL databases and counting things could be fun.

  • You work well in a team-oriented organization due to your excellent communication skills and empathy.

  • You have a Masters degree in Computer Science, or a related field, or equivalent training, fellowship, code academy, or work experience.


  • Java expertise is fantastic; or a willingness to learn and use it.

  • Lucene experience is great; ElasticSearch understanding is fantastic.

  • Experience applying deep neural networks to real-world problems is great.

  • Reviewable code samples or community participation.

Compensation, Benefits, and Location

  • Competitive compensation and full benefits including medical, dental, vision, 401(k) with matching, short and long term disability insurance, tuition reimbursement, and more

  • This position is available in our Menlo Park, CA office headquarters, and includes the flexibility of working from home one day per week.

  • We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

LexisNexis, a division of RELX Group, is an equal opportunity employer: qualified applicants are considered for and treated during employment without regard to race, color, creed, religion, sex, national origin, citizenship status, disability status, protected veteran status, age, marital status, sexual orientation, gender identity, genetic information, or any other characteristic protected by law. If a qualified individual with a disability or disabled veteran needs a reasonable accommodation to use or access our online system, that individual should please contact or if you are based in the US you may also contact us on 1.855.833.5120.

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