Lead Internal Auditor

About the Company

Dexcom is a global leader and early innovator in continuous glucose monitoring technology. What started as a mission to transform diabetes care has grown into a broader effort to deliver personalized health insights that help people take better control of their wellbeing. The company has spent 25 years building solutions that aim to improve health outcomes worldwide and is focused on expanding its consumer health technology vision while continuing to address serious health conditions.

Dexcom’s culture is built around ambitious, collaborative people who value integrity, dependability, big-picture thinking, and customer trust. The organization is focused on creating meaningful impact for millions of people and continues to invest in biosensing technology and health innovation.

Team and Role Overview

In this role, you will join Dexcom’s Global Internal Audit function from the Athenry office and contribute to audits, advisory work, and control improvement initiatives. You will report to the Global Senior Manager of Internal Audit and work with colleagues across the business as well as with external auditors. The position is a managerial-level individual contributor role with strong potential for learning, growth, and cross-functional influence.

The job calls for a positive mindset, comfort in a fast-moving environment, and the ability to adapt to shifting priorities. Success in the role depends on sound analysis, collaboration across teams, and the ability to drive better decisions through data-backed recommendations.

Key Responsibilities

• Plan and carry out internal audits that support business priorities and uncover opportunities to improve operations.
• Help design audit plans and procedures, and where needed, oversee fieldwork, review working papers, and give feedback that supports staff development.
• Produce thorough walkthrough documentation covering business and financial processes, report dependencies, key risks, and control design, including management review controls.
• Use data-led methods to examine processes and technology dependencies, assess risk and control effectiveness, and shape audit testing.
• Handle complex audit areas that require deeper analysis, while also guiding staff auditors when appropriate.
• Perform audits across operational, financial, and IT areas, identifying control weaknesses, process improvement opportunities, and practical recommendations.
• Carry out SOX 404 testing to confirm control effectiveness and support compliance with US GAAP and established best practices.
• Act as a primary contact for process and control owners, and coordinate with external auditors on integrated financial statement audits.
• Support or lead inventory audit work, including controls over inventory transfers, cycle counts, physical counts, and related manufacturing and distribution risks.
• Write detailed audit reports and present recommendations that improve control quality, operational efficiency, and overall business performance.
• Track remediation efforts to confirm that agreed corrective actions are completed on time and deliver the expected outcome.
• Build constructive working relationships with management and help strengthen control awareness across the organization.
• Take on additional assignments or special projects as needed based on changing business priorities.

Requirements

• A professional certification such as ACA, ACCA, CPA, or CIA is preferred.
• Strong knowledge of current auditing standards, relevant laws, SEC requirements, and audit/regulatory expectations.
• At least 7 to 10 years of related experience, with a background in internal audit, data analytics, testing key reports, and project leadership.
• Experience from a large manufacturing company and at least 3 to 4 years in a public accounting firm; experience with a Big 4 firm is an advantage.
• Solid hands-on understanding of operational and financial audit programs, risk assessment, COSO, and SOX Section 404 controls.
• Advanced working knowledge of Microsoft Word, Excel, and PowerPoint.
• Experience with Lucidchart for process mapping and flowcharting; exposure to Tableau, Power BI, and Oracle Fusion is beneficial.
• Ability to work with global audit teams and international Finance, Functional, and IT stakeholders across time zones.
• Must live within driving distance of the Athenry office or be willing to relocate so the role can be performed on site.

What You’ll Get

• Exposure to Dexcom’s life-changing CGM technology and the broader #dexcomwarriors community.
• A complete benefits package.
• Opportunities to grow on a global scale.
• Access to career development through in-house learning resources and/or approved tuition reimbursement.
• The chance to work for an innovative, industry-leading company focused on its employees, customers, and communities.

Additional Information

This role requires 5% to 15% travel.

Agency note: Dexcom asks recruitment agencies not to send unsolicited resumes or applications through its careers site or directly to employees, and states it is not responsible for fees tied to unsolicited submissions.

Additional flexibility details for the working arrangement will be shared by the hiring manager.