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McMaster-Carr

Senior Offensive Security Engineer - Internal Audit

McMaster-Carr · Chicago, IL (Elmhurst)

Posted 6 days ago · $170,000-$250,000

or apply directly on McMaster-Carr's site. We never take the application ourselves.

Is this posting real?

This role has been open
6 days
McMaster-Carr's roles stay open a median of 45 days
Reposted
No
Salary listed
Yes
95% of McMaster-Carr's roles list one
Ghost-job risk at McMaster-Carr
high
27 stale, 2 reposted of 37 open
Hiring momentum
43 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-17

Measured from postings appearing on and disappearing from McMaster-Carr's own greenhouse board since 2026-08-03. Full hiring picture for McMaster-Carr.

About this role

As a Senior Offensive Security Engineer at McMaster-Carr, you will build and operate an independent security assurance capability within the Internal Audit team. Your role involves conducting risk-based penetration tests, adversary simulations, and purple-team engagements to evaluate the effectiveness of cybersecurity controls. You will translate technical findings into actionable risk insights for various stakeholders and collaborate with Information Security while maintaining independence from the teams you assess.

Our read on this posting5.0out of 5
benefits
5/5
freshness
5/5
career value
5/5
role clarity
5/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of McMaster-Carr as an employer.

What you need

  • 5+ years of relevant offensive security experience
  • At least three recent years conducting penetration tests, red team engagements, adversary emulation exercises, or purple team assessments
  • A four-year college degree
  • Ability to independently scope, plan, execute, document, and communicate security assessments
  • Broad knowledge of enterprise attack surfaces including identity systems, operating systems, network infrastructure, cloud platforms, web applications, and security monitoring tools
  • Practical experience identifying and validating exploitable attack chains

What you get

  • Total cash compensation generally ranges from $170,000-$250,000 including profit sharing
  • 100% tuition reimbursement
  • Informal and formal mentorship
  • Medical, dental, pharmacy and vision plans without monthly premiums
  • Inclusive, all-gender benefits
  • Paid parental leave for all new parents

Worth weighing

  • Position is not eligible for work authorization sponsorship
  • Role involves independent work but requires collaboration with other teams
  • No specific technology stack mentioned, which may indicate a diverse or evolving environment

Summarised from McMaster-Carr's posting. Read the full original.

Listed by McMaster-Carr on their greenhouse job board, last confirmed open on 2026-09-17. PitchMeAI is not the employer.

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