DFT Engineer

Job Title

DFT Engineer

Role Summary

Implement design-for-test (DFT) for a large multi-core AI accelerator SoC. Work on scan, ATPG, MBIST, tool integration, automation and silicon bring-up as part of the SoC test and product engineering teams. Role is based in Bristol and may require export-control eligibility checks.

Experience Level

Mid-level. No explicit years-of-experience specified.

Responsibilities

Primary responsibilities on the SoC test and verification effort.

• Contribute to the DFT architecture for a multi-core AI accelerator SoC.
• Integrate DFT tools into the EDA flow and maintain the DFT toolchain.
• Implement scan insertion, compression, and test logic across digital blocks.
• Generate and analyze ATPG patterns for structural faults.
• Support MBIST implementation and memory test strategies for embedded memories.
• Coordinate with physical design to ensure clean scan chain implementation and timing closure.
• Develop scripts and automation to improve DFT workflows (e.g., Python, Tcl).
• Support silicon bring-up, debug, and test analysis; work with ATE to validate ATPG patterns and support production test and yield ramp.

Requirements

Concise list of required and strongly preferred qualifications.

• Must-have: Experience in DFT or digital ASIC design and a good understanding of scan, ATPG, memory BIST and digital test concepts.
• Must-have: Familiarity with mainstream EDA tools used for DFT and ATPG.
• Must-have: Scripting skills (Python, Tcl, or similar) to automate flows and reports.
• Nice-to-have: Experience with multi-core SoC testing, silicon bring-up, ATE pattern bring-up, production test and yield ramp.
• Nice-to-have: Experience collaborating with physical design for timing- and scan-chain closure.
• Detail-oriented, eager to learn, and able to work collaboratively in a fast-paced team.

Education Requirements

Degree in Electrical Engineering, Computer Engineering, or a similar technical discipline (as stated in the posting).

About the Company

Company: Fractile

Headquarters: London, UK

Fractile is on a mission to revolutionize AI by developing silicon, systems, and software that enable the fastest execution of advanced models at lower costs. Established in 2022, the company has rapidly expanded, fostering a collaborative culture in its London and Bristol offices. With a focus on innovation in ML/AI IC product development, Fractile combines hardware and software to deliver high-impact solutions for data center applications.