Senior Software Engineer (Front-End/Full Stack), Customers Team

  • San Francisco, CA
  • Full-time

Company Description

We believe the economy is better when everyone has access. When everyone has room to grow. No one should be left out because the cost is too great or the technology too complex. We started with a little white credit card reader but haven’t stopped there. We’re empowering the independent electrician to send invoices, setting up the favorite food truck with a delivery option, helping the ice cream shop pay its employees, and giving the burgeoning coffee chain capital for a second, third, and fourth location. We’re here to help sellers of all sizes start, run, and grow their business—and helping them grow their business is good business for everyone.

Job Description

Come join Square’s Customers team and help empower our sellers to reach their goals.  The Customers team is responsible for maintaining and innovating a mixture of back-end services and front-end experiences that power coupons, gift cards, loyalty, receipts, messaging via email, Facebook, and SMS.  Last year our team started a transition to re-imagine the platform, we will continue the journey to move from datacenters to the cloud, and further enhance the platform to be ready for the future.

As an Engineer on the Customers team you will...

  • Work closely with product managers, designers, and internal teams to understand our user’s needs
  • Use your passion for great user experience to develop customer facing applications used by both merchants and customers
  • Write concise, well-organized code and sensible tests
  • Stretch yourself by learning new technologies to innovate the platform
  • Provide technical leadership and mentorship to junior developers
  • Lead development of features from requirements break down to production release


You have...

  • 5+ years of experience developing production software
  • Experience developing front-end leveraging popular JS-app frameworks (e.g. Ember, React, Vue.js, or Angular)
  • Experience with developing server code on languages (e.g. Ruby on Rails, Java, or Golang)
  • Experience in writing functional testing (e.g. Rspec, QUnit/QUnitBDD, JUnit, Mocha, or Jasmine)
  • Strong desire to work fullstack on customer facing products
  • A strong sense of customer empathy and desire to influence the product direction
  • Experience building and nurturing team culture towards strong engineering practices
  • A deep desire to be challenged and continuously improve as an engineer and leader

Technologies we use at Square:

  • Ember.js, ES6, SASS
  • Ruby / Rails, Java, Golang, Protocol Buffers
  • MySQL, RedisC, AWS

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