Manufacturing Test Engineer

  • Full-time
  • Current Square Employee?: Apply via go/jobs with your Square email.

Company Description

We started with a simple idea—that everyone should be able to accept credit cards—and we’ve been rethinking buying and selling ever since.

For sellers, we’re creating one cohesive service to run your entire business, from a register in your pocket to analytics on your laptop. For buyers, we’re making it faster to order from the businesses you love and more fun to pay your friends back.

Buying and selling sound like simple things—and they should be. We’re working hard to make commerce easy for everyone.

Job Description

As a Manufacturing Test Engineer, you will be responsible for designing test processes that are as elegant as our products. You are able to drive reliable product designs and processes through every phase of the product lifecycle. You can build test stations to ensure every customer has a perfect experience with our hardware, and use the data generated by those stations to drive improvement in Square's products.

You will:

  • Become intimately familiar with Square's hardware products and manufacturing processes in order to set test strategies for the entire supply chain.
  • Serve as the technical liaison between the hardware design teams and the factory.
  • Work with Square’s Embedded Software group to specify embedded test access and APIs.
  • Collaborate with Electrical Engineering to understand their design intent, then translate this to DFt suggestions and a detailed electrical test plan.
  • Understand mechanical assembly process in order to recommend focused verification of high-risk or high-consequence assembly steps.
  • Own multiple factory-test stations from concept through mass production.
  • Design and fabricate mechanical test fixtures.
  • Design and validate PCBs for electrical signal routing and signal conditioning within your test fixtures.
  • Write and debug station software.
  • Understand the meaning of the measurements your stations are taking, and feed analysis of these measurements back to our hardware design teams.  
  • Provide on-site support during NPI and mass-production builds in Asia and Mexico.  (~25% max travel.)
  • Look for opportunities to make the test team (and the entire hardware team) more nimble.
  • Identify strategic partnerships that can extend our team’s capabilities without compromising our quality standards.
  • Architect test stations using generic building blocks that can be re-used in future test stations.
  • Create automated systems to quickly collect feedback about our products’ performance in the factory and with our customers
  • Reach beyond the boundaries of Manufacturing Test to make Square’s products better wherever you see the chance.

Qualifications

You have:

  • Flexibility to thrive in a constantly-changing startup environment.
  • Hands-on aptitude to make things work in EE, software, and/or ME realms:
  • Read EE schematics.
  • Understand the spirit of software design principles and pragmatically apply those to factory test scripts.
  • Natural inclination to apply methodical engineering problem-solving skills to dig into challenges that are outside of your expertise.
  • Collaboration: ability to navigate Square’s fluid organization to get things done.

Nice-to-have:

  • 5+ years' experience producing complex electronic products in high volume. Bonus points for consumer electronics.
  • Practical experience performing sensitive analog measurements in a high-volume factory environment. (RF, acoustic, optical, etc.)
  • Confirmed ability to write robust, extensible software in a variety of languages on a variety of platforms. (We work mostly in Python and C++ on Windows, Mac and linux.)
  • Real-world understanding of statistics/SPC.
  • Basic understanding of electrical signal integrity, especially as it applies to passing signals around in a noisy factory environment.
  • Working knowledge of functional test and ATE techniques (ICT, BSCAN, AOI, X-ray) for board-level assemblies (PCBAs).

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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