Data Scientist Intern, Growth Data Science

  • San Francisco, CA
  • Intern

Company Description

When we launched the little white reader, we invented mobile, ubiquitous payments and enabled anyone to start, run, and grow a business. Ten years and billions of transactions later we’re reimagining commerce for businesses of all types and sizes—we’re enabling the independent electrician to send invoices, helping the beauty salon pay its employees, and giving the burgeoning coffee chain capital for a second, third, and fourth location. We’re working to find new and better ways to help businesses succeed on their own terms—and we’re looking for people like you to help shape tomorrow at Square.

Job Description

As a Data Science Intern within the Growth Data Science team, you will work on projects that help with Square’s growth. The team exists to surface the right messages to the right sellers at the right time across all our go-to-market channels (web app, in-app, notifications, sms, email, mail, etc) as well as products. We provide sellers with remarkable experiences using machine learning/deep learning to power the best product/feature/content recommendations.

Our algorithms derive value from our unique, rich, and rapidly growing data. We partner with business, product, operations and engineering teams to drive better decisions, automated and human, using sophisticated modeling and machine learning. We’re a passionate team of hackers, statisticians, and optimizers who are resourceful in distilling questions, wrangling data, and driving impactful business decisions.

For this 12 week summer internship, you will:

  • Collaborate with the Growth Data Science team’s cross-functional business partners to build remarkable machine learning and analytics solutions for our go-to-market channels
  • Take ownership of data science projects from beginning to end: frame and structure questions, collect and analyze data, research, prototype, and build out data science pipelines and models in production, as well as summarize and present methodology and key insights
  • Use and learn a diverse set of techniques spanning machine learning (including deep learning), causal inference, and other forms of statistical modeling to solve important business and product problems.
  • Help build the next generation of data products at Square


You have: 

  • Are pursuing a MS or PhD in Economics, Statistics, Computer Science, Mathematics, or related technical field 
  • Hands on experience in executing data analysis, preferably using SQL and Python
  • Familiarity with machine learning concepts
  • Ability to understand complex business and data systems 
  • Ability to clearly communicate complex results to technical and non-technical audiences Versatility and willingness to learn new technologies on the job

Even better:

  • Programming experience in one or more object-oriented languages, including: Python, C, C++, Java, Ruby, Scala, and Go. 
  • Familiarity with Linux/OS X command line, version control software (git), and general software development 
  • Experience in programming or scripting to enable ETL development 
  • Hands-on experience  with machine learning (e.g. regression, ensemble methods, etc.) 
  • Familiarity with relational and analytical databases such as PostgreSQL or Snowflake
  • Previous industry experience or internships in analytics or data science
  • Independent research experience 

Technologies we use and teach:

  • Python (numpy, pandas, sklearn), Snowflake (SQL), Looker (data visualization & reporting)

Additional Information

At Square, our purpose is to empower – within and outside of our walls. In order to build the best tools for the businesses and customers we support all over the world, we have to start at home with a workforce as diverse and empowered as our sellers. To this end, we take great care to evaluate all employees and job applicants equally, based on merit, competence, and qualifications. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability status, or any other characteristic protected by law. We encourage candidates from all backgrounds to apply and always consider qualified applicants with arrest and conviction records, in accordance with the San Francisco Fair Chance Ordinance. Applicants in need of special assistance or accommodation during the interview process or in accessing our website may contact us by sending an email to assistance(at) We will treat your request as confidentially as possible. In your email, please include your name and preferred method of contact, and we will respond as soon as possible. Perks At Square, we want you to be well and thrive. Our global benefits package includes: Healthcare coverage, Retirement Plans, Employee Stock Purchase Program, Meal reimbursements, Wellness perks, Paid parental leave, Flexible time off, Learning and Development resources