Senior Accounting Manager, Manufacturing Operations

Career Opportunities:
Senior Accounting Manager, Manufacturing Operations (29067)

Requisition
29067
-Posted
- Accounting/Finance

- Regular Exempt Full-Time Employee

Amkor Technology, Inc. (Nasdaq: AMKR) is the world’s largest U.S. headquartered OSAT and is a global leader in outsourced semiconductor packaging and test services. With a strong track record of innovation, a broad and diverse geographic footprint and solid partnerships with lead customers, Amkor delivers high-quality solutions that enable the world’s leading semiconductor and electronics companies to bring advanced technologies to market.

The company’s comprehensive portfolio includes advanced packaging, wafer-level processing, and system-in-package solutions targeting applications for smartphones, data centers, artificial intelligence, automobiles and wearables. For more information visit  .

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.

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 (Cap Ex) 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…