Mgr, Tax

Join UCT and be part of the fastest-growing sector in the world! We indirectly touch every semiconductor chip that goes into every smartphone, smart car and device that uses artificial intelligence. This is a critical time for the semiconductor industry and for UCT - as technology evolves, we evolve with it. UCT is a diverse workplace where every talented employee is committed to continuous innovation, challenging the status quo and exceeding customer expectations. If you are a person with a relentless drive to succeed, a strong focus on quality with a passion for success – join us today! 

UCT is looking for a talented Tax Manager to join us in Singapore! 

Role Summary:

The Tax Manager – Asia Region role oversees operational tax processes, ensures adherence to regulatory requirements, drives process optimization, and partners closely with cross‑functional teams including Accounting, Finance, Treasury, Legal, and external advisors within the Asia Region. The position requires deep technical tax expertise, strong leadership, and the ability to manage complex workflows in a fast‑moving environment.

Duties and Responsibilities:

Tax Compliance & Reporting – for all companies within the Asia region

• Oversee the preparation, review, and timely filing of all corporate income tax and indirect tax returns.


• Review quarterly and annual tax provision calculations/packages under ASC 740.


• Ensure proper accounting and reporting for income tax withholding on cross-border payments.


• Support U.S. tax reporting needs such as providing timely details needed for annual U.S. tax returns


• Manage tax audits and inquiries, coordinating responses and documentation.


• Assist with compliance changes resulting from BEPS 2.0/Pillar Two, where applicable

Operational Leadership

• Establish and maintain robust tax processes, controls, and documentation.


• Monitor and document operational compliance with terms of intercompany agreements and relationships.


• Ensure compliance with tax concession programs, e.g. Pioneer and Development and Expansion Incentives


• Drive continuous improvement initiatives to enhance accuracy, efficiency, and automation within tax operations.

Strategic Tax Management

• Partner with Accounting and Finance teams to evaluate tax impacts of business initiatives.


• Support M&A activities, including due diligence, integration, and post‑transaction compliance.


• Monitor legislative and regulatory changes, assessing implications for the company.

Technology & Process Optimization

• Collaborate with IT and Finance to improve data quality and streamline tax data flows.


• Champion digital transformation within the tax function.

Cross‑Functional Collaboration

• Serve as a key liaison between tax operations and internal stakeholders.


• Communicate complex tax concepts to non‑tax business partners in a clear, actionable way.


• Coordinate with external auditors, advisors, and tax authorities.

Knowledge, Skills and Experience:

Minimum Qualifications:

• 6-8+ years tax experience working for a multinational company and/or accounting firm


• Demonstrated leadership experience managing teams, projects and complex workflows


• Intermediate to advanced Excel skills


• Detail-oriented, organized and willing to take ownership of projects


• Strong oral and written communication skills


• Strong analytical, organizational, and project‑management skills


• Ability to navigate ambiguity and drive clarity in fast‑paced settings

Preferred Qualifications:

• Familiarity with tax technology platforms (e.g., OneSource, Corptax, Alteryx)


• Experience with SAP


• Experience with tax implications of M&A

Education, Certifications, and Requirement:

Minimum Education and Certification Qualifications:

• BS/BA degree with an emphasis on Accounting/Finance

Preferred Education and Certification Qualifications:

• Advanced degree in Accounting/Finance/Tax

Work Environment:

• Analytical — heavy use of tax law, financial data, and modeling


• Strategic — advising leadership on tax planning, risk, and long‑term implications


• Regulated — strict adherence to federal, state, and international tax rules


• Deadline‑driven — especially during quarterly closes, audits, and filing seasons

At Ultra Clean Technology, we do not just welcome diversity - we celebrate it! Ultra Clean Technology is proud to be an equal opportunity employer. We are committed to equal employment opportunity regardless of race, color, national or ethnic origin, age, religion, disability, sexual orientation, gender, gender identity and expression, marital status, and any other characteristic protected under laws and regulations.