Who We Are

McMaster-Carr is a leading e-commerce company that industrial customers have trusted for over 120 years. Our products help them get manufacturing lines back up quickly, keep operations running smoothly, and prototype the next generation of innovative solutions. We earn and keep that trust by offering the right products, making them easy to find, and delivering them fast, so customers can solve problems with greater speed, precision, and ease.

Our industry-leading e-commerce experience, indispensable product selection, and world-class service bring hundreds of thousands of customers to mcmaster.com each day. But we're never standing still. Curious, exceptional people are at the heart of our evolution. They turn new challenges and disruptive technologies into opportunities to refine our operations, expand our offering, and deliver a better experience for every customer.

What You'll Do

As a member of the IT Audit team, you’ll work closely with teams across our Technology organization to learn about our custom systems and assess McMaster‑Carr’s IT security controls. Our internal audit team brings creativity and critical thinking to each project while building strong relationships with technology leaders. While we use leading enterprise security tools, the vast majority of the systems that run our business are custom‑built and continuously evolving—requiring auditors to apply security principles and professional judgment rather than relying on standardized, checklist‑based assessments. Because of this bespoke environment, assessing controls requires a strong foundation in security principles and the curiosity to learn about and assess the company’s practices for meeting its security goals.

As an integral member of our internal audit team, you'll play a key role in high-impact work.

Conduct audits independently from planning through reporting. Communicate findings and recommendations clearly and focus on helping teams strengthen security and operations. You’ll serve as a risk and controls expert, partnering with Technology leaders to assess the effectiveness of IT security controls that protect the business.
Build trusted partnerships with technology leaders. While you’ll gain exposure to many different teams, you'll frequently work with members of the security, mainframe, and infrastructure teams. By gaining and demonstrating an understanding of their systems and tools, you’ll develop trust with the subject matter experts and enable collaboration that makes deep audit work possible.
Develop deep knowledge of McMaster-Carr's custom-built systems. From McMaster.com to payment processing to internal infrastructure, you’ll devise practical test plans to assess how controls protect the business. You'll work directly with subject matter experts to understand which servers handle sensitive data, how access is controlled, and how encryption is applied at each stage.
Use critical thinking in the application of security frameworks to our technology environment. Whether assessing our security controls holistically or completing the PCI assessment of credit card data flows, we carefully consider our internal context and the intended security goal of the relevant framework to determine whether our processes align with the framework’s guidance.
Help shape a growing IT audit function by influencing audit topics, following curiosity into new areas, and connecting insights across engagements.

Who You Are

We are seeking bright, curious, and ambitious individuals eager to make an impact. Ideal candidates have:

5+ years of relevant work experience, including at least 3 years in an audit role, with recent experience auditing security controls
A 4-year degree
A certification in audit or cybersecurity

Experience assessing security controls, with working knowledge of topics such as firewalls and network segmentation, incident response management, security configurations, logging and monitoring, backup and recovery practices, and user access management
The ability to engage quickly with unfamiliar technology environments, ask astute questions, and apply audit judgment in settings without rigid policies or standard playbooks
Exceptional communication and analytical skills--able to synthesize technical concepts, explain risk clearly, and connect ideas across different audits and systems

Benefits

Cash Compensation

Total cash compensation generally ranges from $200,000 - $259,000 and includes profit sharing based on company performance.

Growth & Learning

100% tuition reimbursement
Informal and formal mentorship
Employee resource groups

Health & Wellbeing

Medical, dental, pharmacy, and vision plans with no monthly premiums
Inclusive, all-gender benefits

Family & Future

Paid parental leave for all new parents
Adoption and surrogacy assistance
First-time home buyer assistance
Industry-leading company-funded retirement accounts

Time Off

Paid vacation and personal time

Equal Opportunity Employer

We are proud to be an Equal Opportunity Employer and dedicated to providing employees a workplace with reasonable accommodations and free of discrimination, harassment, and retaliation. At McMaster-Carr, we do not make employment decisions based on age, ethnicity, citizenship status, military status, gender identity and expression, race, religion, disability status, marital status, sexual orientation, or any other legally protected group.

This position is not eligible for work authorization sponsorship by McMaster-Carr.

Data We Collect

We may collect professional, education and employment-related data, and any assessments made throughout the recruiting process, to evaluate candidacy for employment. To communicate with job applicants, we may collect applicant names, contact information, and other personal identifiers, including those outlined in the California customer records statute. Through voluntary disclosure, we may also collect protected classifications under federal or California law (e.g., race, gender, etc.). For additional details about the personal information we collect and its uses, please click here.

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