Block

Mechanical Engineer

• 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.
• Today, SQUARE products offer a full ecosystem of hardware, software, and financial services — including point-of-sale devices, payment processing, inventory systems, business loans, and e-commerce tools. It serves millions of merchants globally, from small retailers to enterprise-scale sellers. In addition, PROTO products are accelerating the world's transition to an open economy with products that increase access and independence for everyone. We're building Bitkey, a simple and safe self-custody bitcoin wallet that will put customers in control, as well as hardware and software that will help decentralize bitcoin mining and enable new and innovative use cases for bitcoin mining.
• The team is looking for an experienced Electrical Engineer who has experience designing complex electronic systems. The primary focus for this role will be electrical design for Block hardware products, including schematic capture, working closely with PCB designers, board-level bringup/validation, and supporting manufacturing of the product. Experience with high density interconnect PCB design.
• Qualifications
• You will:
• Design circuits and electrical systems for Block's hardware products
• Collaborate with firmware, mechanical, and factory test engineers, developing cohesive, elegant solutions
• Travel 10~20% to support manufacturing
• You have:
• 6+ years experience as an electrical engineer in embedded systems
• Experience designing and shipping products
• Expertise in the hardware lab with test, measurement, and prototyping
• Expertise in developing schematics and leading PCB layout activities
• Familiar with interfaces such as SPI, USB, I2C, RS232, etc.
• Hands-on experience designing for EMC and debugging associated issues
• Experience with power management and 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.)
• Familiarity with Altium Designer
• Experience in board-level analog design
• Experience programming and debugging microcontrollers
• Understanding of near-field and RF design fundamentals (i.e. NFC, Wi-Fi, Bluetooth, etc)
• Experience with audio design
• Experience writing embedded firmware in C
• Ability to automate lab instruments with Python
• Experience using AI for Hardware workflows
• 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.
• Pay transparency: Use of AI in Our Hiring Process …

Senior Electrical Design Engineer