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Product Design Engineer

Square

Square

Product, Design
San Francisco Bay Area, CA, USA
USD 160,700-283,600 / year
Posted on Oct 8, 2025

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams — People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more — provide support and guidance at the corporate level. They work across business groups and around the globe, spanning time zones and disciplines to develop inclusive People policies, forecast finances, give legal counsel, safeguard systems, nurture new initiatives, and more. Every challenge creates possibilities, and we need different perspectives to see them all. Bring yours to Block.

Reporting to the Block Product Design Engineering Lead, you will have ownership of one or more projects and their bring up through all phases of the product design lifecycle. This entails project ownership from the conceptual to detail design and subsequent prototype and production builds at the factory. You will evaluate early field failures and implement engineering solutions throughout the sustaining engineering phase until the conclusion of the product's life cycle.

You will:

  • Work closely with Product teams to architect and refine new product concepts
  • Develop rapid prototypes using prototyping techniques such as 3D printing, machining, etc.
  • Architect and design complex electromechanical systems
  • Design high volume aluminum sheetmetal and plastic parts
  • Work closely with cross functional teams such as Electrical Engineering, Factory Test, and Operations teams to design and validate new products
  • Forge strong partnerships with our CMs to ensure successful production builds
  • Effectively communicate your designs in CAD, presentations

Unique aspects to the Block Product Design Engineering team:

  • Ownership of elements of product and engineering program management especially in early project phases
  • Responsible for tooling bring-up and manufacturing design engineering of all new tools and processes
  • Working with our CM partners in both OEM (Original Equipment Manufacturing) and JDM (Joint Design Manufacturing) models
  • Responsible for reliability testing including putting together a validation plan, leveraging our CM partner and external resources to perform the testing, and reviewing, presenting and approving the data
  • Responsible for the sustaining in-production products including early field failure analysis (EFFA), design improvements, rework, and setting ongoing reliability testing specs (ORT)

Qualifications

You have:

  • 8+ years direct or equivalent work experience in Product Design
  • Proven mechanical design experience, ability to own system level definition
  • Design experience with systems with critical thermal and power architectures requirements
  • Exposure to Computational Fluid Dynamics for thermal simulations e.g. Flotherm, Ansys or an equivalent software
  • Proficiency in industry standard CAD tools - SolidWorks preferred
  • Deep understanding of volume manufacturing processes and DFM

Beneficial to have:

  • Experience with a global supply chain and contract manufacturers in a diversity of locations
  • Experience in detailed failure analysis
  • Experience with Finite Element Analysis
  • Designing parts with high cosmetic requirements such those requiring plastic injection molding and CNC machined aluminum enclosures

We're working to build a more inclusive economy where our customers have equal access to opportunity, and we strive to live by these same values in building our workplace. Block is an equal opportunity employer evaluating all employees and job applicants without regard to identity or any legally protected class. We will consider qualified applicants with arrest or conviction records for employment in accordance with state and local laws and “fair chance” ordinances.

We believe in being fair, and are committed to an inclusive interview experience, including providing reasonable accommodations to disabled applicants throughout the recruitment process. We encourage applicants to share any needed accommodations with their recruiter, who will treat these requests as confidentially as possible. Want to learn more about what we're doing to build a workplace that is fair and square? Check out our I+D page.

While there is no specific deadline to apply for this role, U.S. roles are typically open for an average of 55 days before being filled by a successful candidate. Please refer to the date listed at the top of this job page for when this role was first posted.

Block takes a market-based approach to pay, and pay may vary depending on your location. U.S. locations are categorized into one of four zones based on a cost of labor index for that geographic area. The successful candidate’s starting pay will be determined based on job-related skills, experience, qualifications, work location, and market conditions. These ranges may be modified in the future.

To find a location’s zone designation, please refer to this resource. If a location of interest is not listed, please speak with a recruiter for additional information.

Zone A:
$189,000$283,600 USD
Zone B:
$179,600$269,400 USD
Zone C:
$170,100$255,100 USD
Zone D:
$160,700$241,100 USD

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws.

Contact us at privacy@block.xyz with hiring practice or data usage questions.

Every benefit we offer is designed with one goal: empowering you to do the best work of your career while building the life you want. Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning are just some of our offering. Check out our other benefits at Block.

Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people. Square makes commerce and financial services accessible to sellers. Cash App is the easy way to spend, send, and store money. Afterpay is transforming the way customers manage their spending over time. TIDAL is a music platform that empowers artists to thrive as entrepreneurs. Bitkey is a simple self-custody wallet built for bitcoin. Proto is a suite of bitcoin mining products and services. Together, we’re helping build a financial system that is open to everyone.

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