Electrical Design Engineer

  • San Francisco, CA
  • Full-time

Company Description

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.

Job Description

Our hardware team builds the tangible connection to all that is square. From the Square Card Reader for NFC and chip cards, Square Stand, Square Terminal and Register, our family of devices is growing - and this is only the beginning. As we introduce more and more of our products to the world, our hardware footprint continues to expand.

Square’s mission demands increasingly aggressive electrical designs that include integration of multiple payment technologies, RF and near-field communication (NFC), batteries, displays, multiple CPUs, and more. All of this must coexist with security, reliability, and low-cost, high-volume manufacturing. 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 optimized for volume production from “cradle to grave”

  • Travel internationally 10~20%

Qualifications

You have:

  • 4+ 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

  • Familiar with standard communication interfaces such as SPI, USB, I2C, UART

  • Hands-on experience designing for EMC and debugging associated issues

  • Strong skills in power management and low-power optimization

  • Extensive on-site factory experience with contract manufacturers

  • BS in electrical engineering or related field

  • Experience with electrical simulation (i.e. SPICE, electro-magnetic, etc.)

Even Better:

  • Experience in board-level analog design

  • Familiarity with Altium Designer

  • Experience with ARM processors

  • Understanding of near-field and RF design fundamentals (i.e. NFC, Wi-Fi, Bluetooth, etc)

  • Experience writing embedded firmware

  • Ability to automate lab instruments with Python

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)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. Perks At Square, we want you to be well and thrive. Our global benefits package includes: Healthcare coverage, Retirement Plans, Employee Stock Purchase Program, Meal reimbursements, Wellness perks, Paid parental leave, Flexible time off, Learning and Development resources