Senior Software Engineer (Android), Invoices


Square Invoices is the easiest way for merchants to close sales and collect payments remotely. Our customers rely on our products because they are well-designed, easy to use, and integrated with their business. We are a full-stack product oriented team, spanning across engineering, design, product, data science, and marketing. You’ll contribute to the roadmap and strategy decisions and will play a critical role in helping the team accomplish our industry-leading growth goals.

On the Invoices Front Door team, we focus on supporting advanced workflows for upmarket sellers who tend to have a longer sales lifecycle compared to in person sales. Invoices is unique to Square in that we can flex our products to be used complementary to sellers main point of sale, or serve as a complete business and payments stack solution. Our team is focused, fast-moving, and rapidly growing with an abundance of growth and impact opportunities. We focus on building the best tools to help our merchants close sales and get paid quickly. We are doing this in an efficient and scalable way, by automating critical functions for our merchants.

You will:

  • Collaborate closely with engineers, designers, and product managers to design, build, and iterate on world-class product experiences, defining product scope and design
  • Be responsible for the entirety of your features; including API design, implementation, automated testing, and rollout
  • Hold yourself, and your teammates accountable to the standards of engineering and ethics that enables Square to safely move billions of dollars in payments and allow our customers to trust us with their sensitive data
  • Help empower a team of engineers by mentoring individuals, cultivating pragmatic engineering decision-making, and leveraging your technical expertise to constantly raise the quality of design decisions and implementation by holding the team to a high standard
  • Partner with Web, iOS, Android, and Server engineers to ship features
  • Respond to customer feedback to improve our products


You have:

  • 5+ years experience developing and shipping Android applications using Java/Kotlin
  • Strong ownership and execution skills, to deliver remarkable solutions to our merchants
  • The ability to adapt to the different stages of product development. This can mean building intentionally scrappy code to iterate quickly, or building a sustainable system that will support our product for years to come
  • Demonstrated ability to create readable, pragmatic code
  • The ability to provide technical mentorship and guidance to engineers of varying experience levels
  • Strong communication skills and a demonstrated ability to work cross-functionally with other functions, such as designers, product managers, data scientists, marketing, and business development to deliver a great product
  • An appreciation for the connection between the software you build and the experience it delivers to customers

Technologies we use and teach:

  • Kotlin for development, leveraging Square’s modern open source library, Workflow
  • Espresso UI for testing
  • Protocol buffers for network transport
  • Gradle for our build environment
  • Dagger, leveraging Square’s open source library, Anvil, to simplify dependency injection
  • Compose, LeakCanary, Kotlin Coroutines, OkHTTP and more

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