Silicon Product and Test Engineer
The Silicon Product and Test Engineer at Block's Proto division will lead the post-silicon productization of bitcoin mining ASICs, overseeing the process from silicon bring-up to high-volume manufacturing. This role involves close collaboration with cross-functional teams, including ASIC Design, ATE, Bench, Systems, Reliability, Foundry, and OSAT partners, to ensure the successful development and scaling of complex hardware products.
Key responsibilities include driving post-silicon bring-up, characterization, qualification, and productization activities, as well as developing and optimizing wafer sort and final test screening strategies to enhance power, performance, yield, quality, and DPPM. The engineer will also develop, debug, and maintain ATE test programs and screening methodologies for advanced-node ASICs, define and execute characterization plans across process, voltage, and temperature conditions, and perform silicon data analysis to improve correlation and optimize system-level performance. Additionally, the role involves driving DOE planning, execution, and analysis for silicon characterization, yield optimization, and process tuning, collaborating with system and hardware engineers to develop effective ASIC binning methodologies and system optimization strategies, and defining and supporting ATE hardware requirements. The engineer will also analyze wafer-level and package-level parametric and functional data to identify trends, root-cause failures, and drive corrective actions, engage with foundry, OSAT, and external vendors to support bring-up, qualification, yield improvement, and manufacturing execution, and develop KPIs and dashboards to track power, performance, process variation, yield, and product quality metrics.
Candidates should have a Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, or a related field, with 5–10 years of experience in Product Engineering, Test Engineering, Silicon Validation, or Post-Silicon Engineering in fabless or semiconductor environments. A strong understanding of semiconductor manufacturing flows, including wafer sort, final test, qualification, and high-volume manufacturing, is essential. Experience with silicon bring-up, characterization, yield analysis, and product qualification for advanced-node ASICs or SoCs is required, along with proficiency in ATE platforms such as Advantest 93K or Chroma. Candidates should also have experience developing or debugging ATE test programs and production screening methodologies, strong statistical data analysis and debugging skills using tools such as JMP, Python, or similar analysis frameworks, and experience with DOE planning, silicon correlation, and yield optimization methodologies. Collaboration skills across Design, Systems, Firmware, Reliability, Manufacturing, Foundry, and OSAT teams are crucial, as well as strong problem-solving skills with the ability to independently drive technical issues to closure. Comfort with operating in ambiguous, fast-moving environments with a high degree of ownership is also important.
While not mandatory, experience with near-threshold operation or low-voltage optimization, high-performance computing, AI, networking, or bitcoin mining ASICs, understanding of semiconductor device physics, SPICE fundamentals, and FinFET technologies, experience with system-level characterization and correlation across ATE, Bench, and deployed systems, and experience with scripting or automation using Python, Perl, or TCL are considered advantageous. Verbal fluency in Mandarin is also a plus.
This position offers the opportunity to work on innovative products at the forefront of the cryptocurrency industry, contributing to the development of self-custody bitcoin wallets and decentralized bitcoin mining solutions. Joining Block's Proto division means being part of a team dedicated to accelerating the world's transition to an open economy, with a focus on increasing access and independence for everyone.