Senior Design Verification Engineer

  • Toronto, ON, Canada
  • Employees can work remotely
  • Full-time

Company Description

Square builds common business tools in unconventional ways so more people can start, run, and grow their businesses. When Square started, it was difficult and expensive (or just plain impossible) for some businesses to take credit cards. Square made credit card payments possible for all by turning a mobile phone into a credit card reader. Since then Square has been building an entire business toolkit of both hardware and software products including Square Capital, Square Terminal, Square Payroll, and more. We’re working to find new and better ways to help businesses succeed on their own terms—and we’re looking for people like you to help shape tomorrow at Square.

Job Description

You will be apart of Square's ASIC team that creates custom silicon that handles all the secure payments in Square's readers and terminals. Square's ASIC team oversees the Design, simulation, manufacturing, and testing of a fully custom mixed-signal ASIC. Our custom chips improve several aspects of our products from security / performance all the way to their elegant designs. In addition to working with both the Hardware Engineering and Operations teams to provide an excellent product, our team also works with InfoSec, iOS/Android, Payment, and Legal teams as well.


We are looking for a Senior Design Verification Engineer to lead the digital verification of our products.  You will create a full chip test plan and occasionally debug/code RTL.  At the same time you will be exposed and involved in many adjacent technical areas such as digital design, mixed signal design, firmware, production, and electrical design. You will report into our Hardware Development Manager. 


Role Location: 

We want employees to reside where they feel most creative and productive. You will be part of a company that works across Pacific, Mountain, Central, and Eastern time zones. You and your direct team will be based in the  Eastern time zones. This role is open to all people who can be effective partners with this team, including sharing typical working hours.


You Will:

  • Verify Square's custom ASICs to make sure it meets our security and payment requirements

  • Validate first silicon designs and ensure it is incorporated into our hardware products


You Have:

  • 10+ years of industry experience in verification of microcontrollers/processors

  • Fluency in Systemverilog/UVM and SVAs

  • Experience writing low-level C code to program CPU subsystem

  • Built a flow methodology around different EDA tools

  • Experience with SDF annotated gate sims 

  • Experience in Linux environment


Technologies we use and teach:

  • Systemverilog, UVM, SVAs

  • C, Make, Python, Perl


Non-required skills that would benefit our team: 

  • Experience working with different EDA tools directly

  • Experience with verification of ROM bootloader

  • Experience with interfaces such as I2C/UART/SPI

  • NFC/EMV knowledge

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. 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.


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