Senior Software Engineer, Privacy

  • San Francisco, 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

As a Privacy Engineer at Square, you will build internal products and infrastructure to protect Square's customers' privacy. In this role, you will work with many teams across Square, including other teams within security, as well as platform engineering, product engineering, data science, and privacy counsel.

You will:

  • Design and develop services or infrastructure that support data privacy programs and consumer's privacy rights across Square's engineering ecosystem
  • Derive and apply new principles from the emerging field of privacy engineering to problems at industry scale
  • Help determine the technological future of data privacy for data science and machine learning services at Square
  • Work with other engineering teams incorporating privacy engineering products into their engineered solutions
  • Provide mentorship and reviews for engineering teams working with privacy technologies
  • Contribute to the monitoring and stability of our team's existing engineering solutions
  • Work in the San Francisco, New York or Seattle office. Remote work in the USA or Canada is a possibility depending on experience. Occasional travel will be required.


You have:

  • 3+ years of software engineering experience
  • A high bar for writing quality scalable, robust, and testable code
  • Willingness to cut across new or existing services, infrastructure, or frameworks to achieve privacy goals
  • A desire to perform and grow technically as an engineer or engineering leader
  • Strong communication skills

Even better:

  • Designing novel yet robust security or privacy architectures
  • Novel ways of building and understanding data flows and data access control
  • Collaborating across companies on open source privacy-enhancing infrastructure 
  • Explaining complex technical security or privacy concepts clearly

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