Machine Learning Engineer, Conversations

  • Redwood City, CA
  • Full-time

Company Description

Square builds common business tools in unconventional ways so more people can start, run, and grow their businesses. When Square started, it was difficult and expensive (or just plain impossible) for some businesses to take credit cards. Square made credit card payments possible for all by turning a mobile phone into a credit card reader. Since then Square has been building an entire business toolkit of both hardware and software products including Square Capital, Square Terminal, Square Payroll, and more. 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

The Conversations team at Square is building Square Assistant -- a virtual assistant to help merchants serve their customers. Today, Square Assistant responds to customers asking for help with their appointments, including cancellations, confirmations, and conversational rescheduling of appointments; as well as, of course, answering common questions. Looking into 2021 we're excited to expand Square Assistant with new skills to save merchants as much time as we can, and we're excited to bring Square Assistant to the phone: adding voice capabilities to the bot. The team itself was created in mid-2019 with the acquisition of Eloquent Labs.

We're looking for NLP engineers and research scientists, particularly those with an interest in dialog systems, speech, and/or textual entailment

You will...

  • Help design and develop novel dialog systems within Square
  • Build AI systems to handle millions of conversations
  • Work with Backend, iOS, and web engineers to ship features.
  • Work cross collaboratively with product managers and designers to improve and define product scope and design.
  • Ship cutting-edge AI to businesses that traditionally haven’t had access to it


You have…

  • Experience with machine learning, with a specialization in natural language processing
  • Experience with Python and PyTorch is recommended
  • Experience in Java is a plus
  • Interest to help shape the mission and roadmap of a team, and rallying others to join you
  • Eagerness to share your ideas, and openness to those of others

Languages and technologies we use (and teach)...

  • Python and Java for development

  • PyTorch for training ML models

  • SQL for storing and processing analytics data from the bot

  • AWS for training and serving ML models

Additional Information

At Square, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of 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.


At Square, we want you to be well and thrive. Our global benefits package includes:
  • Healthcare coverage
  • Retirement Plans
  • Employee Stock Purchase Program
  • Wellness perks
  • Paid parental leave
  • Flexible time off
  • Learning and Development resources