Payroll & General Ledger Senior Accountant

Position Summary

Mattson Technology, Inc. is seeking a Payroll & General Ledger Sr. Accountant to oversee U.S. payroll operations and key General Ledger activities. This position will oversee payroll for approximately 180 salaried and non-salaried employees while supporting journal entries, account reconciliations, month-end close, payroll accounting, and internal controls.

The role requires hands-on experience with ADP, Oracle, and SAP and will serve as a key interface between Payroll, HR, Finance, and Accounting.

Key Responsibilities

Payroll

· Full own the end-to-end U.S. payroll for approximately 180 employees, including regular, supplemental, bonus, and special payrolls.

· Review hours, earnings, deductions, benefits, taxes, PTO, and other payroll inputs.

· Perform pre- and post-payroll audits and resolve discrepancies.

· Coordinate with HR, Benefits, Finance, and Accounting to ensure accurate and timely payroll.

· Maintain payroll procedures, documentation, controls, and process improvements.

· Support federal, state, and local payroll tax compliance, including multi-state withholding, unemployment, W-2/W-2C, filings, and deposits.

General Ledger & Payroll Accounting

· Prepare and review journal entries related to payroll, benefits, accruals, prepaid expenses, taxes, and other accounts.

· Reconcile payroll registers, payroll liabilities, benefits, and payroll expenses to the General Ledger.

· Prepare monthly balance sheet account reconciliations and investigate outstanding items.

· Analyze payroll and accounting variances and support monthly, quarterly, and year-end close.

· Maintain accurate documentation and provide support for internal and external audits.

Systems & Process Improvement

· Serve as a key business owner/SME for ADP, Oracle, and SAP, including payroll and accounting interfaces.

· Troubleshoot system and data issues with IT and external providers.

· Support system upgrades, implementations, testing, and process improvements.

· Identify opportunities to automate payroll, reconciliations, reporting, and accounting processes.

Supervision & Controls

· Supervise and provide direction to a payroll processor in Malaysia, including work priorities, deadlines, quality, and training.

· Maintain appropriate internal controls, segregation of duties, and audit-ready documentation.

· Ensure compliance with company accounting policies and internal control requirements.

Required Qualifications

· Bachelor’s degree in Accounting, Finance, Business, or related field.

· 5+ years of progressive accounting and payroll experience.

· Hands-on U.S. payroll experience supporting approximately 180+ employees.

· Strong General Ledger, account reconciliation, journal entry, and month-end close experience.

· Hands-on experience with ADP, Oracle, and SAP.

· Knowledge of federal, state, and local payroll requirements, including multi-state payroll.

· Strong Excel and analytical skills with excellent attention to detail.

· Ability to manage deadlines, resolve issues, and maintain confidential employee information.

· Strong written and verbal communication skills.

Preferred Qualifications

· Experience in semiconductor, technology, manufacturing, or multinational companies.

· SOX/internal control experience.

· Experience with ADP-to-Oracle payroll interfaces.

· Prior supervisory experience.

· U.S. GAAP and external audit experience.

· Experience improving or automating accounting and payroll processes.

Key Competencies

Payroll & Accounting Expertise | ADP/Oracle/SAP Systems | General Ledger | Reconciliations | Internal Controls | Analytical Skills | Leadership | Process Improvement | Communication

Key Performance Measures

· Accurate and timely payroll processing.

· Accurate payroll accounting, reconciliations, and journal entries.

· Timely and effective month-end close support.

· Payroll tax and regulatory compliance.

· Resolution of payroll and accounting issues.

· Effective internal controls and audit support.

· Reliable ADP, Oracle, and SAP processes and interfaces.

· Continuous process improvement and automation.