Sr. Cost Accountant

Location: Irvine, CA

Work Arrangement: Hybrid, 4 days on site (Monday to Thursday)

Job Summary:

The Sr. Cost Accountant provides accounting and cost accounting support within our semiconductor company, covering financial reporting, accounting operations, and cost analysis. This includes gathering historical cost data, investigating cost structures, and analyzing product and service pricing and budget-versus-actual results. The role applies analytical methods to semiconductor manufacturing economics, such as cost models for production processes, yield management, and technology nodes, to support manufacturing profitability and cost competitiveness.

The position requires strong accounting and cost accounting knowledge, analytical skills, and the ability to work effectively across accounting and cost accounting teams to ensure accurate financial recording, reporting, and cost management.

Responsibilities:

Accounting Operations

• Supporting processes and procedures

• Assist with transaction processing and reconciliation

• Contribute to month-end closing activities

• Help prepare financial statements and reports

• Support identification and resolution of accounting discrepancies and exceptions

• Maintain reconciliation and supporting accounting documentation

** Financial Reporting and Cost Analysis**

• Support financial reporting processes and data collection and verification

• Help prepare required financial disclosures and management reporting packages

• Support compliance with accounting standards and cost accounting policies

• Contribute to cost frameworks and cost models that support business decision‑making

• Assist with product and portfolio cost analysis, including margin analysis and target‑costing support

** Manufacturing Cost Analysis**

• Support cost analysis of semiconductor manufacturing operations and technologies

• Assist with development of cost models for production processes, yield management, and technology nodes

• Help identify manufacturing cost drivers and cost trends

• Contribute analysis that supports manufacturing optimization, capacity planning, and technology investment decisions

• Assist with maintaining and contributing to the Bi‑annual standard cost updates

• Supports and provides insight into MFG variances, PPV, E&O, and Inventory Reconcilations

• Support initiatives aimed at improving manufacturing profitability and cost competitiveness

** Audit Support

• Assist with internal and external audit activities

• Support preparation of audit schedules and documentation

• Help respond to audit inquiries and requests

• Contribute to implementation of audit recommendations

• Document audit support activities

** Cross-functional Support and Knowledge Transfer

• Support accounting interfaces with other departments, including operations, engineering, and supply chain

• Assist with financial communications and information sharing across functions

• Contribute to cross‑functional financial initiatives and process improvement efforts

• Document processes and procedures for knowledge transfer

• Share accounting expertise and support training on specific procedures

• Support adoption of new cost accounting tools, technologies, and digital solutions

** Compliance Requirements

• Adheres to all Company security and confidentiality requirements

• Comply with financial data protection policies

• Follows all accounting standards and financial regulations

• Maintains appropriate documentation of accounting activities

• Completes all required training and certifications

Minimum Qualifications:

• Solid knowledge of accounting principles and practices

• Strong analytical skills and attention to detail

• Experience with accounting software and systems

• High level of accuracy in financial calculations

• Good problem‑solving abilities

• Effective written and verbal communication skills

• Ability to work…