Senior Software Engineer, Communications Platform

  • New York, NY, USA
  • Employees can work remotely
  • Full-time
  • Alternate Location: Atlanta, United States

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.

The Communications Platform team builds the platform that delivers hundreds of millions of messages per month to Square merchants and customers. Our main mission is to make communication between Square and its customers scalable, easy, effective, and intelligent.

We enable multi-channel (email, sms, push, in-product) real-time messaging through well defined APIs.

We are a small, focused, and rapidly growing team with an abundance of growth and impact opportunities.

Job Description

  • Reliably guarantee the delivery of millions of messages per day

  • Scale our systems to meet ever increasing demand

  • Design APIs and the underlying data models used by many apps and microservices

  • Partner with product teams at Square that integrate with our platform to guide integration plans & troubleshoot bugs as needed

  • Leverage data and ML models to optimize delivery

  • Work with designers and product managers to build intuitive and useful tools for our customers

  • Mentor other developers on the team

  • Contribute to the broader tech and open source communities

  • Work with cloud solutions like AWS and Google Cloud Platform


  • 5+ years of software engineering experience, and an excellent command of engineering fundamentals

  • Software development experience in one or more general purpose programming languages

  • A passion to build beautiful, intuitive products

  • Empathy for your customers and colleagues

  • Strong communication skills

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.

We’re working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Square is a proud equal opportunity employer. We work hard to evaluate all employees and job applicants consistently, without regard to race, color, religion, gender, national origin, age, disability, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class. 

We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible.

Additionally, we consider qualified applicants with criminal histories for employment on our team, and always assess candidates on an individualized basis.


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
  • Paid time off
  • Learning and Development resources

Square, Inc. (NYSE: SQ) builds tools to empower businesses and individuals to participate in the economy. Sellers use Square to reach buyers online and in person, manage their business, and access financing. Individuals use Cash App to spend, send, store, and invest money. And TIDAL is a global music and entertainment platform that expands Square's purpose of economic empowerment to artists. Square, Inc. has offices in the United States, Canada, Japan, Australia, Ireland, Spain, Norway, and the UK.

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