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.

At Square, the Notification Infrastructure team builds the platform that delivers hundreds of millions of messages per month to Square merchants and customers. 

Messages range from personalized in-product notifications highlighting recent activity to emails detailing the latest sale. We take pride in ensuring relevant messages reach our merchants quickly.

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

You will:

• Reliably guarantee the delivery of millions of messages per day

• Scale our systems to meet ever increasing demand

• Leverage data and ML models to optimize delivery

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

• Mentor other developers on the team

• Contribute to the broader tech and open source communities

You have:

• BA/BS degree or equivalent experience (4+ years preferred)

• Lead high-scalable systems from design to implementation

• Innate curiosity, growth mindset, and passion for creating products that are beautiful inside and out

• Demonstrated your love for engineering through side projects, research, or open source contribution

• Demonstrated deep technical leadership on previous projects

Technologies we use and teach:

• Java 8, Ruby on Rails

• MySQL, Kafka, AWS 

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)squareup.com. 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.