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Lead internal auditor

Athenry
Dexcom Ireland - Athenry
Internal auditor
Posted: 18 June
The role
Dexcom Corporation Overview
Dexcom Corporation (NASDAQ DXCM) is a pioneer and global leader in continuous glucose monitoring (CGM). Dexcom began as a small company with a big dream: To forever change how diabetes is managed, unlocking information and insights that drive better health outcomes. 25 years later, Dexcom has pioneered an industry and is broadening its vision beyond diabetes to empower people to take control of health. Our goal is to become a leading consumer health technology company while continuously reinventing unique biosensing‑technology experiences to improve human health worldwide.
Meet The Team
At Dexcom, our people are passionate about what we do, enjoy teamwork, and the ability to make a difference in an inclusive workplace. We look to create an organization that empowers our customers to take control of their health and we're excited to welcome you on this journey.
Job Overview
As the Lead Internal Auditor, you will play a key role supporting the Dexcom global internal audit function, operating out of the Athenry office. You will report directly to the Global Senior Manager of Internal Audit and interact with all levels across the organization, building relationships with external and internal auditors. This role offers professional growth and the opportunity to drive solutions for greater efficiency and value.
Responsibilities

Lead or execute internal audits designed to reinforce execution of Dexcom’s business imperative and identify opportunities to improve our business operation.
Support audit planning, develop audit work plans and procedures, supervise fieldwork, review internal audit work papers and provide feedback to support staff development.
Ensure the completion of high‑quality integrated walkthrough documentation that demonstrates understanding of business/financial operations, key reports reliance, identified risks, and control design including Management Review Controls.
Leverage data‑driven approaches to analyze business processes, assess controls/risks, and design audit procedures; work on complex transactions/issues requiring in‑depth evaluation, providing guidance to staff auditors.
Perform internal audits across operational, financial, and IT processes, identifying control gaps, process improvement opportunities, and practical recommendations to strengthen business performance and compliance.
Execute SOX 404 control testing to evaluate control effectiveness, ensuring compliance with US GAAP and best practices; liaise with process/control owners and external auditors as the main point of communication for Dexcom integrated financial statement audits.
Support and/or lead inventory‑related audit activities, evaluating controls over inventory movements, cycle counts, and physical inventory observations, assessing related risks in manufacturing and distribution processes.
Prepare comprehensive audit findings reports and make constructive recommendations for management to improve adequacy, effectiveness, and efficiency of controls and business operations.
Assess corrective action on reported audit findings for timeliness and effectiveness.
Develop positive relationships with management and promote control awareness throughout the organization.
Perform other duties and/or special projects as assigned in response to changing business conditions and/or requirements.

Qualifications

Demonstrated organizational, time‑management, analytical, and communication skills; ability to work both in teams and independently to execute projects effectively.
Relevant professional certification such as ACA, ACCA, CPA, or CIA; ongoing development of skills and up‑to‑date knowledge of applicable laws and latest regulatory/SEC/audit requirements.
Proven experience in internal audit, data analytics, testing of key reports, and project leadership from a large manufacturing company and at least 3‑4 years at a public accounting firm (Big 4 and above).
Strong understanding of auditing standards, risk evaluation, and execution of operational and financial internal audit programs; exposure to COSO control framework and Section 404 of the Sarbanes‑Oxley Act (SOX) internal controls.
Proficiency in Microsoft Office (Word, Excel, PowerPoint) and experience using Lucidchart for process documentation and flowcharting; knowledge of Tableau, Power BI, or Oracle Fusion is a plus.
Flexible schedule to work with global audit team and international Finance, Functional, and IT teams.
Ability to reside or relocate within driving distance of the Athenry office to work in person; additional information about flexible work arrangement will be provided by manager.

Benefits

A front‑row seat to life‑changing CGM technology and the Dexcom Warrior community.
A comprehensive benefits program.
Growth opportunities on a global scale.
Access to career development through in‑house learning programs and/or qualified tuition reimbursement.
An exciting and innovative, industry‑leading organization committed to employees, customers, and the communities we serve.

Experience And Education

Typically requires a Bachelor’s degree and a minimum of 7‑10 years of related experience.
A graduate degree may be desirable with 4 years of related experience.

Travel Required

5‑15 %

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