Software Engineer, NLP - Ads Targeting & Modeling

San Francisco, CA

Who we are:

Our mission is to provide tools that enable advertisers to reach niche interest groups and personas that resonate with their business.  We accomplish this by leveraging machine learning to infer user attributes such as demographics and interests.  Advertisers can then use these attributes to specify the type of person their advertisement should target.

What you will do:

The best way to understand a person’s interests is by understanding how they spend their time online.  If we can understand the topics, concepts, and entities related to and referenced in the online content that people engage with on and off of Twitter, then we can understand a person’s interests in great detail.  You will help us build machine learned models, as well as the platform that leverages these models to automatically classify tweets, websites, mobile applications, and real world points of interest.  You will build cutting-edge deep learning models for understanding the semantics of text, images, and videos.  Finally, you will help us build a state-of-the-art entity resolution platform that can identify references to people, places, and things found in text, images, and videos, and then automatically link these references to entity records in our knowledge-base.

Who you are:

You’re an information retrieval engineer, applied data scientist  or machine-learning engineer who wants to work on exciting NLP, image, and video machine learning problems.


  • MS or PhD in computer science, data mining, machine learning, information retrieval, recommendation systems, natural language processing, statistics, math, engineering, operations research, or other quantitative discipline; or equivalent work experience

  • 3+ years industry experience

  • Skilled in using machine learning to model text, images, and videos

  • Fluent in one or more object oriented languages like Java, Scala, C#, C++

  • Experience with Hadoop, Pig or other MapReduce-based architectures

  • Knowledgeable of core CS concepts such as: common data structures and algorithms.

  • Comfortable conducting design and code reviews.

  • Experienced in operating Linux-based systems.

  • Passionate about working with large unstructured and structured data sets


We are committed to an inclusive and diverse Twitter. Twitter is an equal opportunity employer. We do not discriminate based on race, ethnicity, color, ancestry, national origin, religion, sex, sexual orientation, gender identity, age, disability, veteran, genetic information, marital status or any other legally protected status.

San Francisco applicants: Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Hiring Process

Step 1

After you apply, a recruiter may reach out to you for an introductory call.

Step 2

If your background is a match for the role, you may phone interview with 1-2 people.

Step 3

If you continue through the process, you will come onsite 1-2 times to interview with a total of 5-10 people.


Personal Information

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U.S. Equal Opportunity Employment Information  (Completion is Voluntary)

At Twitter, we have a bold aspiration to reach every person on the planet. We believe that goal is more attainable with a team that understands and represents different cultures and backgrounds and we are committed to an inclusive and diverse Twitter.

This is where you come in! Please take a few minutes to provide us with your information. You are not required to provide this information and you may decline to disclose. Your decision to provide information (or not) will not affect your employment or opportunities at Twitter.

Twitter is an equal opportunity employer. We do not discriminate based on race, color, ethnicity, ancestry, national origin, religion, sex, gender, gender identity, gender expression, sexual orientation, age, disability, veteran status, genetic information, marital status or any legally protected status.

You can view the ‘EEO is the Law’ poster here.

Twitter does not accept any unsolicited resumes from recruiting agencies and will not pay fees associated with any such resumes. Agencies, please do not send resumes to any Twitter location, employee, or email address.

Twitter, Inc. is committed to working with and providing access and reasonable accommodations to applicants with physical or mental disabilities. If you need an accommodation in order to apply for open job opportunities, please submit a description of your accommodation request to This email is only for accommodation requests related to the application process.

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