Senior SLT Test Engineer
Graphcore is a Bristol-based AI chipmaker (IPU accelerators), a SoftBank subsidiary and a Molten Ventures portfolio company.
Maintainer signals as of 8/23/2026
About Graphcore
Graphcore (graphcore.ai) is a British semiconductor company building Intelligence Processing Units (IPUs) for AI workloads. Founded in Bristol in 2016, it was acquired by SoftBank in 2024. It is a portfolio company of Molten Ventures.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
Develop and deploy system-level test solutions for AI processors, including test content, automation, diagnostics, characterisation workloads, reliability screening, test hardware, validation integration, failure debugging, data analysis, coverage improvement, and production transfer.
Requirements
- Experience in semiconductor test, validation, characterisation, post-silicon bring-up, or manufacturing environments.
- Understanding of semiconductor fundamentals, digital systems, power delivery, signal integrity, and board-level debugging.
- Familiarity with DFT concepts including scan, JTAG, BIST, MBIST, boundary scan, and manufacturing test methodologies.
- Experience with Python, Tcl, Shell, or similar scripting languages.
- Strong debugging, problem-solving, root-cause analysis, and data interpretation skills.
- Experience working with Design, DFT, Validation, Product Engineering, or Manufacturing teams.
- Bachelor’s degree in Electrical Engineering, Computer Engineering, or a related field.
- Familiarity with advanced packaging, chiplets, or high-performance computing products.
- Experience with manufacturing test, production environments, and OSAT engagement.
Responsibilities
- Develop and maintain system-level test content, automation, diagnostics, and characterisation workloads.
- Execute characterisation, voltage and frequency margining, reliability screening, and performance correlation.
- Develop and deploy test boards, sockets, instrumentation, and thermal solutions.
- Integrate validation and bring-up workloads into the system-level test environment.
- Develop manufacturing screening solutions.
- Debug failures and perform root-cause analysis.
- Correlate results across simulation, ATE, bench, system-level test, and manufacturing environments.
- Develop software tools, scripts, and automation flows.
- Improve test coverage, test time, DPPM, and manufacturing readiness.
- Transfer system-level test solutions into production.
- Mentor junior engineers.
Benefits
- Flexible working
- Medical coverage
- Dental coverage
- Vision coverage
- Flexible Spending Accounts
- Health Savings Accounts
- Disability insurance
- Life insurance
- 401(k) retirement plan
- Commuter benefits
- Wellness services
- Employee Assistance Programme