Software Engineer, Automation (Mobile CI, iOS)

  • 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, helping the ice cream shop pay its employees, and giving the burgeoning coffee chain capital for a second, third, and fourth location. Let’s shorten the distance between having an idea and making a living from it. 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

The Mobile CI team at Square operates several mission-critical systems that perform automated builds and tests for iOS and Android application developers. We aim for build and test jobs to happen quickly and precisely, allowing Square’s mobile teams to ship efficiently.

On our team you’ll aim to increase development velocity. We believe that reliable infrastructure and tooling has a tangible impact on overall software and hardware quality. You’ll address tool needs from a foundation level on up by providing CPU and storage bandwidth to build & test workloads, writing more efficient and easier to use tooling, and designing internal web-pages and API integrations that allow developers to visualize and examine the results of the continuous integration process.

You should feel at home working in and around a broad swath of technologies, and understanding the day-to-day frictions of development work in each. You love building new systems from the ground up as much as you love tweaking existing systems to achieve maximum performance. In this role you’ll be working with Square’s mobile teams to develop unified solutions that allow developers to move faster and have greater confidence when they release software.

You Will:
  • Communicate with various product engineering teams to determine tool needs and priorities.

  • Design, develop, and deploy scalable solutions that speed up development.

  • Contribute to monitoring, stability, and security of existing tools.

  • Participate in business-hours on-call rotation for issues with CI systems.

  • Provide mentorship and review support for engineering teams working with a wide array of technologies.

  • Communicate technical designs in writing and in person to multiple technical audiences.

Qualifications

You Have:

  • 5+ Years of Software Engineering experience.

  • BA/BS degree or equivalent practical experience

  • Solid experience and skills with the Linux/Unix command line and tools.

  • Experience in one of: iOS App Development, or AWS/Cloud computing.

Even better:

  • Familiarity with modern VM infrastructure or internals of a modern virtualization or containerization technology.

  • Familiarity with the functions and methods of a modern embedded or mobile toolchain from dependency resolution to code signing.

  • Familiarity with a single modern CI scheduling system such as Jenkins, TeamCity, Travis/Circle CI.

  • Expertise in Compilers, Operating Systems, or Distributed Systems.

  • Background or previous experience in Datacenter Ops, Network Operations, or Virtual Machine Administration at any scale.

  • Familiarity with macOS and Apple development tools.

Technologies We Use:

  • Configuration Management: Primarily Chef, some Ansible

  • Languages: Ruby, Python, and Java.

  • Operating Systems: macOS, Linux

  • Build tools: XCode, gradle, maven

  • Test tools: iOS Simulator, Android Virtual Devices.

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.

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