Senior Software Engineer (Backend), Customer Engagement

  • 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

The Customer Engagement team’s mission is to help Square merchants grow their businesses by giving them the tools they need to know, support, engage, and acquire their customers. Our product suite includes CRM, loyalty and rewards, gifting, marketing, feedback and messaging. Square offers a seamless and simple solution that saves our merchants time and provide a delightful experience to engage and reward their customers.


As a senior engineer on the Customer Engagement team you will...

  • Work closely with product managers, designers, and internal teams to understand user needs
  • Use your passion for building great software to develop meaningful, delightful merchant and customer facing features that help our merchants connect with, engage and reward their customers
  • Help provide the technical vision and direction for the team, including providing mentorship for fellow engineers on the team
  • Write concise, well-organized code and sensible tests
  • Be given opportunities to stretch yourself by collaborating with engineers and other stakeholders across different teams and leading broad initiatives


You have...

  • 5+ years of experience developing production software
  • 4+ years in Back End/ Application development in Java, Golang
  • Experience working with relational databases (MySQL, PostgreSQL)
  • Knowledge of CS fundamentals and code organization best practices
  • A sense of customer empathy
  • A Computer Science or other technical degree

Bonus points if...

  • You have an interest in the business aspect of building a successful product
  • You have experience integrating with external APIs and providing APIs for third parties
  • You have built systems that make use of complex job queues and offline processing

Technologies we use at Square:

  • Java, Golang, Ruby / Rails, Protocol Buffers
  • Ember.js, ES6, Sass
  • Android, iOS/Cocoa
  • MySQL, Redis

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.