Senior Software Engineer, Markets & Finance

  • San Francisco, CA
  • Full-time

Company Description

We believe everyone should be able to participate and thrive in the economy. So we’re building tools that make commerce easier and more accessible to all. We started with a little white credit card reader but haven’t stopped there. Our new reader helps our sellers accept chip cards and NFC payments, and our Cash app lets people pay each other back instantly. We’re empowering the independent electrician to send invoices, setting up the favorite food truck with a delivery option, and helping the ice cream shop pay its employees. And, with Square Capital, we have extended over $1 billion in funding to our sellers, helping them manage their cashflow and making it easy to invest in and grow their business. Let’s shorten the distance between having an idea and making a living from it. And make it easier for customers to shop and pay at their favorite businesses. 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

Squares rapidly growing financing platform, Square Capital, has revolutionized the way businesses and consumers obtain the funding needed to achieve their goals.

Unlike traditional business financing products, Square Capital offers are extended to pre-qualified sellers with no application process, funds are deposited as soon as the next business day, and repayment happens as a fixed percentage of daily card sales. Since the product launched in 2014, Square Capital has extended more than $2.5 billion to over a hundred thousand sellers.

As a Technical Engineering Lead on Square Capital, you will be responsible for designing, building, and owning the services and infrastructure that power our products. Our finance and investor platforms are responsible for everything from accurately recording and reporting financial operations and transactions to data-crunching jobs and handling millions of dollars in money transfers every day. If you have a passion for the intersection between finance and technology, and a dedication to precision and detail in software design and development, we want to work with you!


You Will:

  • Work closely with engineering, product, investor teams and Square leadership, to design and build new cutting-edge financial services products

  • Provide mentorship to engineers and cross-functional partners to improve engineering quality and increase team effectiveness

  • Maintain an accounting system to accomplish the proper record keeping of all operations, transactions, assets and liabilities

  • Orchestrate the reliable, secure, and accurate movement of millions of dollars per day to and from our investors

  • Build systems that generate reports and analytics that operate over massive amounts of sensitive data, while maintaining high performance and absolute accuracy

  • Massively scale our existing lending platform, from the datastores to the distributed coordination mechanisms depending on them

  • Design fault tolerant systems so the team can be brave and move fast, without ever negatively impacting our customers

You Have:

  • BA/BS degree or equivalent working experience (5+ years preferred)

  • Extensive experience designing, building, and operating complex systems with a variety of technologies

  • History of leading and mentoring engineering teams to raise technical standards and achieve business goals

  • Excellent interpersonal skills that enable effective communication and collaboration with a variety of stakeholders

  • Passion for building products that are beautiful outside and inside from their user experience to their robust and elegant design


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.