Staff SLT Test Engineer

Responsibilities

• Lead development and deployment of SLT hardware and software solutions supporting silicon bring-up, characterization, yield learning, and manufacturing deployment
• Own major SLT workstreams and drive execution from requirements definition through deployment and production readiness
• Develop and integrate SLT test content in collaboration with Silicon Validation, Bring-up, Product Engineering, and Manufacturing teams
• Lead development of SLT hardware including test boards, sockets, thermal solutions, instrumentation, and vendor engagements
• Develop and maintain SLT software frameworks, automation infrastructure, diagnostics, telemetry collection, and data analysis tools
• Drive characterization activities including voltage margining, frequency characterization, thermal characterization, and reliability screening
• Lead debug, failure analysis, root-cause investigations, and correlation activities across Simulation, ATE, Bench, SLT, and manufacturing environments
• Define and optimize test coverage, test time, screening effectiveness, DPPM, and manufacturing test strategies
• Support transfer of SLT solutions into OSAT and contract manufacturing environments and provide production ramp support
• Work closely with DFT teams to understand testability, observability, scan architectures, and manufacturing test requirements
• Mentor junior engineers and provide technical leadership within the team

Requirements

• Experience in System-Level Test, production test, characterization, or post-silicon validation of complex semiconductor products
• Strong understanding of semiconductor fundamentals, power delivery, signal integrity, board design practices, and advanced packaging technologies
• Knowledge of DFT methodologies including scan, JTAG, BIST, MBIST, boundary scan, and manufacturing test architectures
• Experience working with OSATs, contract manufacturers, and high-volume manufacturing environments
• Strong scripting, automation, and debug skills using Python, Tcl, Shell, or Perl
• Bachelor's degree in electrical engineering, Computer Engineering, or related field

Preferred Qualifications

• Experience with 2.5D/3D stacked semiconductor products
• Familiarity with advanced packaging technologies such as chiplets, CoWoS, SoIC, or HCB
• Experience with manufacturing test flows and production ramp activities

About the Company

At Graphcore, we’re building the future of AI compute. We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale.