Sr. Firmware Test 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!

The Role

You will:

• Focus on ensuring the hardware and embedded software for our mining products are working as intended.

• Work closely with electrical engineers and manufacturing test engineers to conduct failure analysis on prototypes and EVT units

• Work closely with mechanical and firmware engineers to test the reliability and performance of our mining products

• Work closely with our tech ops team to conduct analysis on defects reported in the field

• Define test cases and comprehensive test plans for our mining products.

• Create software tools that can automate the process of validating hardware features and firmware used by the device

• Travel to factory sites and testing facilities for up to 25% of the year

You have:

• 5+ years of relevant professional experience in electronics and/or software industries.

• Understanding of product requirements and the ability to create testing strategies and platforms to ensure product compliance.

• Experience with electronics communications protocols (e.g. SPI, UART, I2C, USB)

• Experience with debugging tools (e.g. JTAG, SWD, GDB integrations)

• Experience working with embedded Linux.

• Experience with writing test cases and test plans.

• Excellent communication skills and empathy for team members and customers

• Experience using Python, Go, C, or Rust in automated testing, build systems, or device firmware communication

• Degree in CS, CE, EE, or equivalent practical experience

Nice to have:

• Knowledge of Bitcoin mining

• Experience with oscilloscopes, logic probes, logic analyzers, and digital multimeters

• Experience with tools used for automating API testing

• Experience with tools used for web front-end testing

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:
$217,800—$326,800 USD

Zone B:
$207,000—$310,400 USD

Zone C:
$196,100—$294,100 USD

Zone D:
$185,200—$277,800 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 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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