Square Electrical Design Engineer in San Francisco, California

Our hardware team builds the tangible connection to all that is square. With the Square Card Reader and the introduction of Square Stand, our family of devices is growing in terms of technologies and payment types—and this is only the beginning. As we introduce more and more of our products to the world, our hardware footprint expands.

Square’s mission demands ever increasingly aggressive electrical designs that now include near-field communication (NFC), custom in-house designed silicon, and increasingly complex CPU core designs. All of this must coexist with the demands of high active security (tamper detection), power management, and low-cost manufacturability in high quantities. We are looking for a passionate electrical design engineer who craves these challenges.

You will:

  • Design circuits for Square"s hardware products

  • Collaborate with firmware, mechanical, and factory test engineers, developing cohesive, elegant solutions

  • Design low-power, low-cost embedded systems that are optimized for volume production “cradle to grave”

  • Be completely responsible for the behavior of the electrons in the system

  • Travel internationally 20%

You have:

  • 7-8 years experience as an electrical engineer in embedded systems

  • Experience designing and shipping high-volume consumer products

  • Expertise in the hardware lab with test, measurement, and prototyping

  • Expertise in developing schematics and leading PCB layout activities

  • Expertise knowledge of standard communication interfaces such as SPI, USB, I2C, RS232

  • Experience with 8-bit to 32-bit RISC and ARM processors

  • Experience with android/linux systems

  • Hands-on experience with EMC design and debug

  • Strong skills in low-power design, detailed power analysis, and optimization

  • Solid understanding of NFC and high frequency wireless (Bluetooth, etc) design

  • Extensive experience on site with contract manufacturers in Asia

  • BS in electrical engineering or related field

Even Better:

  • Experience in analog design

  • Experience programming firmware

  • RF/Antenna Design

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.