Senior Auditor - Finance and Operations

Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers. Lambda's mission is to make compute as ubiquitous as electricity and give everyone the power of superintelligence. One person, one GPU. If you'd like to build the world's best AI cloud, join us. Note: This position requires presence in our San Jose or San Francisco office location 4 days per week; Lambda’s designated work from home day is currently Tuesday.   We are seeking an experienced Senior Auditor - Finance and Operations to join our Internal Audit function, reporting directly to the Head of Internal Audit. This role is calibrated to Manager-level experience at a Big Four firm, or equivalent internal audit experience in industry: you will independently execute SOX testing and advisory work across several core financial and operational processes - Financial Close & Reporting, Revenue & Billing, Procurement & Payments, Treasury, Payroll, Fixed Assets, Tax, Leases, Equity & Stock Compensation, Sales Commissions, and Inventory - reviewing testing performed by co-sourced or junior team members, as Lambda builds a public-company-ready internal controls environment. What You’ll Do SOX Financial Process Controls & Assurance Plan, execute, and document SOX walkthroughs and control design/operating effectiveness testing across assigned financial and operational process areas, exercising independent judgment on complex or ambiguous control questions. Contribute to the annual SOX scoping and risk assessment process for assigned process areas, in alignment with the overall ICFR program. Maintain ICFR/SOX 404 documentation for assigned processes, including COSO framework mapping, process and control narratives/flowcharts, and risk and controls matrices. Review the testing work of co-sourced resources or junior team members for quality, completeness, and adherence to methodology. Coordinate evidence collection and remediation efforts, holding process owners accountable to agreed timelines. Identify control deficiencies, evaluate severity and root cause, and partner with Finance and business leadership to design and validate effective remediation. Apply professional skepticism to independently evaluate and conclude on control design and operating effectiveness. Operational & Advisory Audits Execute internal audit and advisory projects on operational risk areas beyond core SOX scope - such as revenue/billing reconciliation, vendor and Service Level Agreement (SLA) controls, and contract-related financial risk. Advise Finance, Revenue, Procurement, and Operations process owners on control design for new products, systems, or contract structures. Contribute to components of Lambda’s Enterprise Risk Management (ERM) process, including risk identification, assessment, and prioritization workshops. Control Evaluation & Remediation Assess the severity and impact of control deficiencies, including evaluation of aggregation and compensating controls. Work with Controllership, FP&A, Revenue, Procurement, and Treasury process owners to develop, track, and validate remediation plans. Recommend process improvements and efficiency opportunities while maintaining control effectiveness. Stakeholder Collaboration Serve as the day-to-day liaison with Finance, Accounting, Procurement, Treasury, and business process owners on SOX and assurance activities for assigned areas. Support external auditors during financial-process SOX testing for assigned areas, providing evidence, walkthroughs, and context as needed. Provide guidance to process owners, and informal coaching to co-sourced or junior team members, on control requirements and leading practices. Reporting & Communication Prepare clear workpapers, findings summaries, and status updates for the Head of Internal Audit, including materials to support Audit Committee reporting. Communicate control issues and