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.
Skills Required
- 5+ years of relevant work experience
- At least 3 years in an audit role
- A 4-year degree
- A certification in audit or cybersecurity
- Experience in assessing security controls
McMaster-Carr Compensation & Benefits Highlights
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Affordable Benefits — Zero‑premium medical, dental, pharmacy, and vision coverage for employees, spouses, and dependents materially reduces ongoing healthcare costs.
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Retirement Support — Company‑funded retirement accounts are emphasized, with profit sharing described as designed for long‑term savings.
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Strong & Reliable Incentives — Generous profit sharing and additional financial supports (e.g., first‑time home‑buyer assistance and access to financial counselors) are highlighted as part of total rewards.
McMaster-Carr Insights
What We Do
McMaster-Carr is an e-commerce company offering more than half a million products used to keep business in motion. With more than 300,000 daily visits to our website, customers from a variety of industries turn to us when they need to build, design, repair or maintain just about anything because we are the complete, one-stop source for industrial supplies. Technology teams play a vital role in McMaster-Carr’s success. The software that drives our business is developed in-house by a growing team of versatile engineers. Whether the project is automating distribution operations, improving browsing features on our app or integrating a new data center to serve five national facilities, people flourish when they love to learn and pursue ambitious goals. McMaster-Carr’s diverse business creates the opportunity to explore new technologies and develop expertise that is both broad and deep. Growth is supported by an inclusive culture of development seen in mentorship, reading groups, guilds and town halls that create community. They pursue career growth through learning and advancement in technical and project leadership.
Why Work With Us
Curious people thrive at McMaster-Carr. Engineers build technical knowledge through learning groups, book clubs, and one-on-one mentoring. Diverse projects offer experience with a wide range of technologies to encourage career-long learning. Great work is celebrated in an inclusive workplace dedicated to equity, growth and employee well-being.
Gallery
McMaster-Carr Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
Lead Software Engineers and other technology roles benefit from a mix of onsite collaboration with teams and remote work. Other roles may be fully onsite depending on responsibilities.