DFT Engineer

Bristol

Fractile is building silicon, systems and software which will redefine the frontier of AI: running the world’s most advanced models at radically higher speed and lower cost. We have an exceptional team across hardware and software capable of bringing about this change, and we are growing fast to meet demand and deliver our product at scale.

Join the team implementing DFT for a large, multi-core AI accelerator ASIC. You will work on scan, ATPG, and memory test, contributing to a robust and scalable test solution while developing your expertise in advanced SoC design.

Key Responsibilities

Contribute to the DFT architecture of a multi-core AI accelerator SoC

Drive integration of DFT tools into the EDA flow

Implement scan insertion, compression, and test logic

Generate and analyze ATPG patterns for structural faults

Support MBIST implementation for embedded memories

Work with physical design to ensure clean scan chain implementation and timing closure

Develop scripts and automation to improve DFT workflows

Support silicon bring-up, debug, and test analysis

Work with test and product engineering teams to bring up and debug ATPG patterns on ATE, supporting production test and yield ramp

Required Experience

Degree in Electrical Engineering, Computer Engineering, or similar

Experience in DFT, digital design, or related ASIC development

Good understanding of scan, ATPG, memory BIST and digital test concepts

Familiarity with mainstream EDA tools

Scripting skills (Python, Tcl, or similar)

Profile

Eager to learn and grow in DFT and large-scale ASIC design

Detail-oriented and comfortable working with complex systems

Collaborative and responsive in a fast-moving team

How we work

Ownership and execution: you will have full agency to drive your work forward

Rapid iteration: we all work directly with top leadership to move from idea to hardware on ambitious timelines

Full-stack engagement: hardware, software, silicon, and modelling teams all work closely together to create a product with generational impact

Optimistic and pragmatic: we possess the will to win, and to do the hard work to get us there

Team player mentality: the mission is bigger than any of us, and we have the curiosity and technical focus to see the best idea shipped, no matter who’s it is

About us

Founded in 2022, team of 80+ which is expanding rapidly

Modern, open offices in London and Bristol

Collaborative, problem-solving culture built on deep curiosity, entrepreneurial initiative and technical fluency

Export control and security clearance

Certain roles may involve working on technologies subject to export restrictions. Applicants may be required to undergo additional eligibility checks to ensure compliance with applicable law.