Position Summary:We are seeking a high energy and motivated Factory Plant Senior Accounting Manager to join our Amkor Technology Arizona facility. The Factory Plant Senior Accounting Manager is responsible for overseeing all plant-level accounting, financial reporting, cost accounting, and internal controls at Amkor's manufacturing facility located in Peoria. This role partners closely with operations, engineering, and supply chain teams to ensure accurate product costing, inventory valuation, and financial performance visibility. The position plays a key role in supporting operational efficiency, driving cost discipline, and ensuring compliance with U.S. GAAP and Amkor's corporate policies. This position will report to the Controller of Amkor Technology Arizona facility. Initial location is in Tempe Corporate office for training and integration, with eventual work location in our North Peoria Manufacturing site.
Essential Duties and Responsibilities:Plant Accounting & Financial Reporting:
- Review journal entries and account reconciliations
- Prepare balance sheet & income statement analytics and fluctuation explanation
- Manage monthly, quarterly and annual close process for the factory
- Coordinate with corporate accounting on consolidation, technical accounting, and external reporting requirements
- Ensure timely and accurate financial statements in accordance with US GAAP and Amkor policies
Cost Accounting & Inventory Management:
- Oversee standard costing, cost rollups, and variance analysis (labor, overhead, material)
- Analyze manufacturing variances and partner with operations to drive cost improvements
- Manage inventory valuation, cycle counts, and physical inventory processes
- Ensure accurate accounting for WIP, finished goods, and scrap
Operational Finance Partnership:
- Partner with plant leadership on budgeting, forecasting, and financial planning
- Provide actionable insights on cost drivers, capacity utilization, and efficiency metrics
- Support capital expenditure (CapEx) planning, tracking, and asset accounting
- Drive financial discipline in manufacturing operations and investment decisions
Internal Controls & Compliance:
- Ensure compliance with SOX controls and internal audit requirements
- Support external and internal audit activities
- Maintain strong internal controls over financial reporting, inventory and fixed assets
- Lead or participate in various ad-hoc analysis and special projects as assigned
- Identify and drive continuous process improvements and automation opportunities
Leadership & Team Management
- This position starts as individual contributor and will manage a team as operation scales up, with potential succeeding the Controller
Required Qualifications:- Bachelor's Degree or higher in Accounting or Finance (CPA strongly preferred)
- Minimum of eight (8) years of accounting/finance experience
- Strong background in cost accounting and inventory accounting
- Demonstrate strong US GAAP technical accounting and internal controls knowledge
- Strong analytical and problem-solving skills
- Strong communication and leadership skills
- Ability to work in a fast-paced, high-volume manufacturing environment
- Demonstrate proficiency with MS Office with advanced proficiency in Excel
- Experience in a manufacturing environment required; semiconductor or high-tech preferred
- Public company and SOX compliance experience preferred
- Previous experience with financial systems (ERP such SAP/Oracle preferred)
Preferred Qualifications:- Professional designation such CPA, CMA, or CFA
- Semiconductor or high-tech experience
Location: This position will be based at the temporary Phoenix, AZ site and the Peoria site during the construction phase, and will transition to the Peoria site once factory operations begin.
