About The Role

A Day in Your Life at MKS

As an Inventory, Cost & Tax Specialist at MKS Instruments , you will partner with Finance, Operations, Supply Chain, Procurement, Warehouse, and Manufacturing teams to support inventory management, cost accounting, and tax compliance activities while ensuring accurate financial reporting and regulatory compliance. In this role, you will report to the Principal Accountant .

You Will Make an Impact By

Managing inventory accounting activities, including reconciliations, inventory valuation, cycle count reviews, and variance analysis.
Supporting monthly, quarterly, and annual financial close processes related to inventory, cost accounting, and tax accounts.
Analyzing standard versus actual costs and investigating cost variances to improve operational and financial performance.
Preparing tax calculations, supporting schedules, tax reconciliations, and documentation required for compliance with federal, state, and local tax regulations.
Collaborating with Operations, Supply Chain, and Manufacturing teams to ensure inventory accuracy and compliance with established internal controls.
Supporting internal and external audits by providing financial analysis, documentation, and process explanations related to inventory, costs, and taxes.
Identifying opportunities to improve processes, strengthen controls, and increase efficiency within inventory, cost accounting, and tax-related activities.
Maintaining compliance with company policies, accounting standards, and applicable tax regulations.

Travel Requirements: Up to 5 % travel may be required.

Skills You Bring

Education

Bachelor's Degree in Accounting, Finance, Business Administration, Economics, or a related field.

Experience

Minimum 2 years of job-related experience in accounting, inventory management, cost accounting, taxation, or financial analysis.

Required Experience & Technical Skills

Strong knowledge of inventory accounting, inventory valuation methodologies, and inventory control processes.
Experience with standard costing, cost variance analysis, and financial reporting.
Knowledge of tax compliance requirements, including VAT (IVA), Income Tax (ISR), withholding taxes, and related reporting obligations.
Advanced proficiency in Microsoft Excel, including Pivot Tables, Power Query, lookups, and financial data analysis.
Experience working with ERP systems such as SAP,
Strong analytical, problem-solving, and organizational skills.
Ability to work independently while managing multiple priorities and meeting deadlines.
Excellent verbal and written communication skills in a cross-functional environment.
Advanced English proficiency (written and verbal).

Preferred Skills

Experience in a manufacturing, technology, semiconductor, chemical, or industrial environment.
Knowledge of IFRS, US GAAP, and SOX compliance requirements.
Experience with Power BI, Tableau, or other business intelligence and reporting tools.
Exposure to multinational corporate environments.
Experience supporting tax audits and statutory compliance reviews.
Continuous improvement or Lean process improvement experience.

Supervisory Scope

Reporting Relationships

Reports directly to the Principal Accountant .

Financial Responsibilities

Responsible for maintaining the integrity of inventory balances, cost accounting transactions, tax-related accounts, and associated financial reporting.
Supports inventory valuation reviews, cost analyses, and tax compliance activities impacting financial statements.

Physical Demands and Working Conditions

Physical Demands

Perform activities such as sitting, standing, or typing for extended periods of time.
Regularly requires good manual dexterity and coordination.
Must be able to communicate information and ideas so others will understand.
Must be able to exchange accurate information.
Ability to observe documents, spreadsheets, and reports at close range.

Working Conditions

Operates in a professional office environment.
Constantly operates a computer and other office productivity equipment.
Frequently works with financial systems, ERP platforms, and data analysis tools.
Noise level in the work environment is typically moderate.
May occasionally support physical inventory counts in warehouse or manufacturing environments.

Globally, our policy is to recruit individuals from wide and diverse backgrounds. However, certain positions require access to controlled goods and technologies subject to various export control regulations. Applicants for these positions may be limited (by, for example, their countries of citizenship, country of origin, or immigration status) where required by law or governmental contact, and/or employment made contingent upon the issuance of appropriate governmental licensing.

MKS Inc. and its affiliates and subsidiaries (“MKS”) is an affirmative action and equal opportunity employer: diverse candidates are encouraged to apply. We win as a team and are committed to recruiting and hiring qualified applicants regardless of race, color, national origin, sex (including pregnancy and pregnancy-related conditions), religion, age, ancestry, physical or mental disability or handicap, marital status, membership in the uniformed services, veteran status, sexual orientation, gender identity or expression, genetic information, or any other category protected by applicable law. Hiring decisions are based on merit, qualifications and business needs. We conduct background checks and drug screens, in accordance with applicable law and company policies. MKS is generally only hiring candidates who reside in states where we are registered to do business.

MKS is committed to working with and providing reasonable accommodations to qualified individuals with disabilities. If you need a reasonable accommodation during the application or interview process due to a disability, please contact us at: accommodationsatMKS@mksinst.com .

If applying for a specific job, please include the requisition number (ex: RXXXX), the title and location of the role