ASIC Validation Engineer

Proto is 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. We're developing these products in the open - you can read more about them at bitkey.build and mining.build. Within Proto, our Bitcoin Products team delivers the product and go-to-market strategy, software, firmware, and custom silicon needed to make Bitkey and our ambitious mining initiatives a reality. Come build the future of money with us!

We are looking for an ASIC Validation Engineer to help bridge the gap between custom mining silicon design and real-world operation. In this highly hands-on, lab-focused role, you'll work closely with ASIC designers and system engineers to debug issues, build test infrastructure, and generate the data needed to enable rapid design iteration and system-level development.

• Bring up new silicon on bench platforms, evaluation boards, and system hardware
• Debug issues across ASIC, board, firmware, and system interactions
• Develop bench tests, scripts, and tools to exercise silicon features and collect data
• Build and maintain test setups (lab automation, instrumentation, fixtures, scripts)
• Partner with ASIC designers to validate functionality and root-cause failures
• Work with system engineers to ensure silicon performs correctly in target system environments, including mining systems
• Generate and analyze data to support design decisions, characterization, and bring-up
• Create lightweight, reusable test workflows and documentation for the broader team
• Support early manufacturing efforts with practical validation and debug, as needed
• Travel up to 20% to the labs in Oakland, CA or Toronto, Canada

• Bachelor's degree in Electrical Engineering or related field
• 4+ years of experience in silicon validation, hardware test, or related roles
• Strong hands-on experience in a lab environment (bench bring-up, debugging, instrumentation)
• Solid understanding of digital systems and basic analog concepts
• Experience writing scripts or tools (Python preferred) for test and data analysis
• Comfortable debugging issues that span multiple layers (ASIC ↔ board ↔ system)
• Clear communication skills and ability to work closely with cross-functional teams

• Experience with ASIC or FPGA bring-up and validation
• Familiarity with common interfaces (SPI, I2C, JTAG, UART, etc.)
• Experience using lab equipment (oscilloscopes, logic analyzers, power supplies, etc.)
• Exposure to high-performance, power-dense systems (e.g., mining ASICs, accelerators, or similar)
• Experience building test automation or internal tooling
• Familiarity with data analysis and visualization

• Experience working with early silicon / first bring-up environments
• Exposure to manufacturing test or ATE
• Experience working on systems with tight power, thermal, and performance constraints

Candidates may submit up to 9 active applications within a 60-day period. Reapplications to the same role are accepted 90 days after a previous application has been reviewed.

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 here 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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