Senior / Principal DFT Engineer

About Fractile

Fractile was founded in 2022 on the bet that, eventually, the world’s most capable AI systems would be limited in their impact by the time taken to produce useful outputs. We bet everything on the logical conclusion: that the only way to truly unlock this latent value, to make speed viable at scale, was to radically re-invent the hardware that we run our frontier AI models on. Ever since, we have been building chips and systems that tackle this problem: how to efficiently generate output at thousands of tokens per second, while handling the complexity and capacity challenges of operating large models at very long contexts.

The workloads that push to the limits of the current frontier are already transformational; it is the technical and economic limits on inference speed that are constraining progress. The defining work of the 21st century will be marked by the engine of inference delivering immense and diffuse chains of intellectual inquiry, in drug discovery, in software engineering, in materials discovery, in any field where progress is driven by deep reasoning and intelligence to resolve complex problems.

Key Responsibilities

• Own and define the DFT architecture for a large AI accelerator SoC (scan, compression, MBIST, LBIST, boundary scan)
• Set DFT strategy, methodology, flow and signoff criteria
• Drive integration of DFT tools and flows into the overall EDA environment
• Define hierarchical DFT approach for multi-core designs and large memory systems
• Define scan architecture, compression strategy, and ATPG approach
• Define memory test and repair strategy for large embedded RAM
• Establish power-aware and at-speed test strategies
• Work closely with RTL and physical design to ensure clean DFT integration and timing closure
• Work with test and product engineering teams to bring up and debug ATPG patterns on ATE, supporting production test and yield ramp
• Mentor and guide DFT engineers