Director of Costing Accounting

Cerebras Systems builds the world's largest AI chip, 56 times larger than GPUs. Our novel wafer-scale architecture provides the AI compute power of dozens of GPUs on a single chip, with the programming simplicity of a single device. This approach allows Cerebras to deliver industry-leading training and inference speeds and empowers machine learning users to effortlessly run large-scale ML applications, without the hassle of managing hundreds of GPUs or TPUs. Cerebras' current customers include top model labs, global enterprises, and cutting-edge AI-native startups. OpenAI recently announced a multi-year partnership with Cerebras , to deploy 750 megawatts of scale, transforming key workloads with ultra high-speed inference. Thanks to the groundbreaking wafer-scale architecture, Cerebras Inference offers the fastest Generative AI inference solution in the world, over 10 times faster than GPU-based hyperscale cloud inference services. This order of magnitude increase in speed is transforming the user experience of AI applications, unlocking real-time iteration and increasing intelligence via additional agentic computation. About The Role The Director of Cost Accounting will lead all cost accounting, inventory, and cost-related financial activities across manufacturing, infrastructure, and AI compute operations. This role is critical to ensuring accurate costing, capitalized asset accounting, and cost transparency across both training and inference workloads. This role requires comfort operating in a fast-paced, evolving environment, where priorities may shift and processes are still being built. The successful candidate will be expected to ramp quickly, close gaps, and contribute immediately, bringing structure, judgment, and execution while helping where needed across the broader finance organization. You will partner closely with Manufacturing, Supply Chain, FP&A, Deployment, and Engineering to establish scalable costing models, strengthen controls, and support external reporting readiness as the company prepares to operate as a public company. Responsibilities Strategic Leadership Design and implement scalable cost accounting strategies aligned with company growth and IPO readiness. Partner with Supply Chain operations to establish best-in-class costing policies, procedures, and internal controls. Serve as a thought partner to Finance leadership on cost structure, margin drivers, and capital intensity. Operate effectively in a high-growth, fast-paced environment, balancing strategic leadership with hands-on execution as the business scales. Cost Accounting & Inventory Lead month-end and quarter-end close for cost accounting, inventory, and related reserves. Own product, system, and service costing methodologies across complex hardware systems and AI infrastructure. Manage cost allocations to products, services, and programs with clear audit support. Oversee inventory valuation, excess & obsolete analysis, and manufacturing accruals. Ensure SOX-compliant controls over inventory and costing processes. Manufacturing & Supply Chain Finance Partner with Manufacturing and Supply Chain to analyze BOMs, yields, labor, overhead, and supplier pricing. Support capacity planning, volume analysis, and make/buy decisions. Develop and maintain cost center budgets, headcount models, and allocation methodologies. Fixed Assets & Data Center Costing Own accounting and cost modeling for data center fixed assets, including AI compute systems, servers, networking, power, and cooling infrastructure. Establish capitalization policies, useful lives, depreciation methods, and impairment assessments. Partner with Infrastructure and FP&A to forecast capital spend and depreciation expense. Inference & Compute Cost Allocations Develop and maintain inference cost allocation frameworks, including compute usage, power and cooling, data center overhead, depreciation, and support costs. Allocate inference costs across internal R&D, customer contracts, and comme