Assistant Controller

Job Description

Job Description

ACM Research, Inc. is seeking an experienced Assistant Controller to support the accounting and financial operations of our growing U.S. business.

This is a hands-on accounting leadership role for a professional who can combine strong technical accounting expertise, operational execution, and effective partnership with the CFO and global Finance organization. The Assistant Controller will also serve as an important liaison between ACMR’s U.S. operations and our Finance and Accounting teams in Shanghai.

Key Responsibilities

• Establish, maintain, and continuously strengthen internal controls over financial reporting .
• Manage all aspects of the general ledger , including journal entries, accruals, reconciliations, and account analysis.
• Lead significant portions of the monthly, quarterly, and annual financial close.
• Prepare and provide monthly, quarterly, and year-end financial analyses for management.
• Research accounting issues and ensure appropriate treatment in accordance with U.S. GAAP and company policies.
• Analyze and report cost and expense variances , trends, and unusual activity.
• Coordinate and support the annual budget and periodic forecasting processes.
• Supervise and provide oversight for accounts receivable, payroll, accounts payable, and general accounting activities .
• Review U.S. payroll for accuracy, completeness, approvals, and internal-control compliance.
• Serve as backup for payroll processing when needed.
• Review payroll journal entries, liabilities, reconciliations, tax-related information, and year-end payroll activity.
• Serve as backup for stock administration and review stock-option and equity-compensation activity.
• Review stock-option grants, exercises, vesting, cancellations, and related accounting information.
• Oversee accounts payable, payment processing, employee expenses, and vendor-related accounting.
• Oversee accounts receivable processes, including receivables activity, reconciliations, aging, and collection-related accounting.
• Manage and review balance-sheet reconciliations and ensure reconciling items are resolved promptly.
• Support intercompany accounting, settlements, allocations, and reconciliations.
• Partner regularly with ACMR’s Shanghai Finance and Accounting teams , communicating in Mandarin and English.
• Serve as a primary Finance liaison to external auditors and coordinate audit schedules, documentation, and responses.
• Support SOX 404 compliance, internal-control testing, remediation, and audit readiness.
• Support financial reporting, treasury activities, cash forecasting, and other CFO priorities.
• Drive process improvement, automation, and stronger use of ERP and finance systems.
• Partner with Human Resources, Operations, Procurement, IT, Legal, auditors, tax advisors, and other stakeholders.

Required Qualifications

• Bachelor’s degree in Accounting, Finance, or a related field.
• 7–10+ years of progressively responsible accounting experience , ideally at the Accounting Manager, Senior Accounting Manager, or Assistant Controller level.
• Strong knowledge of U.S. GAAP and experience researching accounting issues.
• Demonstrated experience managing the general ledger and monthly, quarterly, and annual close.
• Strong experience with journal entries, accruals, balance-sheet reconciliations, and financial analysis.
• Experience establishing and maintaining effective internal controls .
• Experience supervising or providing oversight for AR, AP, payroll, and general accounting functions .
• Strong U.S. payroll experience, including payroll review and the ability to serve as a hands-on backup processor.
• Experience with stock options, equity compensation, and/or stock-based compensation , including the ability to provide backup stock-administration support.
• Experience with budgeting, forecasting, cost analysis, and variance reporting.
• Experience working in a public-company and/or SOX-controlled environment .
• Experience serving as a liaison to internal and external auditors.
• Experience with ERP, payroll, expense-management, and financial-reporting systems.
• Advanced Microsoft Excel proficiency , including PivotTables, advanced formulas, lookup functions, reconciliations, financial analysis, and working with large datasets.
• Strong analytical skills, attention to detail, sound judgment, and ability to manage multiple priorities.

Bilingual Requirement

Professional fluency in English and Mandarin Chinese is required.

Candidates must be able to speak, read, and write Mandarin at a professional business level and be comfortable conducting regular accounting and financial correspondence and meetings with ACMR’s Shanghai-based Finance and Accounting teams.

Preferred Qualifications

• CPA or active CPA candidate strongly preferred.
• Semiconductor, semiconductor-equipment, advanced manufacturing, or technology industry experience.
• Public-company accounting experience.
• SOX 404 and external audit experience.
• Experience with ASC 718 and stock-based compensation accounting.
• Experience with multinational and intercompany accounting.
• Experience working directly with China-based Finance organizations.
• Experience supporting multiple U.S. locations or legal entities.
• Experience implementing or improving ERP and finance systems.

The Ideal Candidate

The ideal candidate is a technically strong, hands-on accounting leader who can manage the general ledger, strengthen internal controls, analyze financial results and cost variances, review payroll, oversee AR/AP and general accounting, support stock administration, research GAAP issues, and work effectively with external auditors and Shanghai Finance .

This person should be equally comfortable reviewing detailed accounting work and partnering with the CFO on broader financial and operational priorities.