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Principal Reliability Scientist

GraphcoreMilpitas, CAJune 18th, 2026
Job Summary Reporting to the Quality leadership within Manufacturing Operations, the Senior Reliability Scientist is responsible for leading reliability activities across complex, high-performance systems. Working closely with established reliability experts and cross-functional teams, this role uses experimental data and advanced modelling to inform design decisions, validate product reliability and optimise serviceability strategies, including spares provisioning.Responsibilities and Duties Define and refine reliability requirements across silicon, board and system levels, working in partnership with research and design teamsApply advanced reliability methodologies to highly innovative systems, including challenges associated with liquid-cooled architectures and fluid dynamicsDesign and execute experiments to generate high-quality reliability and performance data, ensuring statistical rigour and relevanceAnalyse experimental, field and manufacturing data to quantify reliability metrics such as MTBF, MTTR, RAS characteristics and soft error rates (SER)Use data-driven insights to inform product design trade-offs, reliability target and spares provisioning strategiesCollaborate with chip, board and system design teams to influence architecture and component selection based on reliability considerationsSupport development of system-level reliability models incorporating thermal, mechanical and fluid behaviourLead complex root-cause investigations into reliability issues, driving corrective and preventative actions across teamsContribute to the evolution of reliability tools, processes and best practices within the organisationCommunicate complex reliability concepts, risks and recommendations clearly to a wide range of stakeholdersQualifications Strong background in reliability engineering or reliability science within semiconductor, hardware or complex systems environmentsExperience of physics-of-failure approaches in high-performance computing, AI hardware or related domainsExperience with reliability modelling, experimental design and statistical data analysisProven ability to work with and interpret experimental reliability data to drive engineering decisionsExperience with key reliability metrics such as MTBF, MTTR, RAS and failure rate analysisAbility to operate effectively in complex, cross-functional environments with multiple stakeholdersStrong problem-solving skills with the ability to lead technically challenging investigations independentlyExcellent communication skills, with the ability to influence design and operations teams using data-driven insightsPreferred Qualifications Experience with liquid cooling systems, fluid dynamics or thermally complex hardware environmentsKnowledge of soft error mechanisms and SER modelingExperience contributing to reliability strategy, processes or tooling improvementsEqual Employment Opportunity As set forth in Graphcore's Equal Employment Opportunity policy, we do not discriminate on the basis of any protected group status under any applicable law.#J-18808-Ljbffr