Senior Internal Auditor

Overview

We are seeking an experienced Senior Auditor to join our Global Internal Audit team. The role is responsible for planning and executing internal audit engagements across financial, operational, compliance, and advisory areas, as well as performing Internal Control over Financial Reporting (ICFR) testing in support of the annual audit plan.

Responsibilities include defining audit scope and objectives, conducting risk assessments, designing and executing audit procedures, performing fieldwork, evaluating the design and operating effectiveness of internal controls, and preparing clear, actionable audit reports. The successful candidate will leverage strong analytical and problem-solving skills to assess business processes, identify risks, and recommend practical improvements that strengthen controls, enhance operational effectiveness, and support sound governance.

Based in Singapore, this position offers a hybrid work arrangement and requires approximately 30% travel. The role provides broad exposure to financial reporting, operational processes, and cross-functional business activities, along with excellent opportunities for professional development within Internal Audit and the wider organization.

Key Responsibilities

• Lead audit engagements from planning through reporting and follow up activities.
• Facilitate audit opening, status and closing meetings with management and key stakeholders.
• Perform risk assessments, develop audit programs, and conduct audit fieldwork including walkthroughs, interviews, control testing, and data analytics.
• Assess the design and operating effectiveness of internal controls and identify control gaps, process inefficiencies, and key risk exposures.
• Perform ICFR testing and evaluate controls over key financial processes and business reporting cycles.
• Conduct operational and financial audits and provide practical, risk-based recommendations to strengthen controls and improve business performance.
• Prepare clear, concise, and well supported audit documentation and reports that effectively communicate findings, risks, and recommendations, and follow up on remediation actions.
• Support annual risk assessments, audit planning activities, and special reviews or investigations as required.
• Leverage data analytics and audit tools, where appropriate, to enhance audit coverage and testing efficiency.
• Develop and maintain effective working relationships with stakeholders across Finance and the wider business and collaborate with internal and external audit partners.
• Provide coaching, guidance and support to junior team members, where applicable.

Qualifications and Experience

• Bachelor’s degree in accounting, Finance, Business, or a related field.
• MBA or other advanced degrees are an advantage.
• Minimum of three years of experience in internal or external audit, public accounting (preferably Big Four), or within a multinational, publicly listed, or complex business organization.
• Demonstrated experience in ICFR / SOX 404 testing, financial process reviews, and operational audits.
• Strong understanding of internal control frameworks, audit methodologies, risk assessment, and business process evaluation.
• Sound knowledge of COSO, IIA Standards, and relevant financial reporting and control frameworks such as IFRS, US GAAP and SOX requirements.
• Experience performing process walkthroughs, documenting controls, and assessing the design and operating effectiveness of internal controls.
• Experience with SAP and foreign language (APAC relevant) proficiency preferred.
• Exposure to data analytics and technology-enabled audit techniques is advantageous.
• Professional certification such as CPA, CIA, CISA, ACCA, or equivalent is preferred.

Skills and Attributes

• High standards of integrity, objectivity, and professional judgement.
• Self-motivated, adaptable, and able to work effectively both independently and as part of a collaborative team.
• Strong analytical and critical thinking skills, with the ability to assess complex processes and identify key risks and control implications.
• Effective project management and organizational skills, with the ability to manage multiple priorities and deliver high-quality work within agreed timelines.
• Strong written and verbal communication skills, including the ability to prepare clear audit reports and present issues in a structured and balanced manner.
• Stakeholder management capability, with the confidence to engage constructively with management across different levels and functions.

Waters Corporation (NYSE:WAT) is a global leader in life sciences and diagnostics, dedicated to accelerating the benefits of pioneering science through analytical technologies, informatics, and service. With a focus on regulated, high-volume testing environments, our innovative portfolio harnesses deep scientific expertise across chemistry, physics, and biology. We collaborate with customers around the world to advance the release of effective, high-quality medicines, ensure the safety of food and water, and drive better patient outcomes by detecting diseases earlier, managing routine infections, and combating antibiotic resistance. Through a shared culture of relentless innovation, our passionate team of ~16,000 colleagues turn scientific challenges into breakthroughs that improve lives worldwide. 

Diversity and inclusion are fundamental to our core values at Waters Corporation. It benefits our employees, our products, our customers and our community. Waters complies with all applicable federal, state, and local laws. Qualified applicants are considered without regard to sex, race, color, ancestry, national origin, citizenship status, religion, age, marital status (including civil unions), military service, veteran status, pregnancy (including childbirth and related medical conditions), genetic information, sexual orientation, gender identity, legally recognized disability, domestic violence victim status, or any other characteristic protected by law. Waters is proud to be an equal opportunity workplace and is an affirmative action employer. All hiring decisions are based solely on qualifications, merit, and business needs at the time.