Senior Security Engineer - Operational Technology Network

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About Grainger:

W.W. Grainger, Inc., is a leading broad line distributor with operations primarily in North America, Japan and the United Kingdom. At Grainger, We Keep the World Working® by serving more than 4.5 million customers worldwide with products and solutions delivered through innovative technology and deep customer relationships. Known for its commitment to service and award-winning culture, the Company had 2024 revenue of $17.2 billion across its two business models. In the High-Touch Solutions segment, Grainger offers approximately 2 million maintenances, repair and operating (MRO) products and services, including technical support and inventory management. In the Endless Assortment segment, Zoro.com offers customers access to more than 14 million products, and MonotaRO.com offers more than 24 million products. For more information, visit www.grainger.com.

Compensation:

The anticipated base pay compensation range for this position is to .

Rewards and Benefits:

With benefits starting on day one, our programs provide choice and flexibility to meet team members' individual needs, including:

• Medical, dental, vision, and life insurance plans with coverage starting on day one of employment and 6 free sessions each year with a licensed therapist to support your emotional wellbeing.
• 18 paid time off (PTO) days annually for full-time employees (accrual prorated based on employment start date) and 6 company holidays per year.
• 6% company contribution to a 401(k) Retirement Savings Plan each pay period, no employee contribution required.
• Employee discounts, tuition reimbursement, student loan refinancing and free access to financial counseling, education, and tools.
• Maternity support programs, nursing benefits, and up to 14 weeks paid leave for birth parents and up to 4 weeks paid leave for non-birth parents.

• Requirement Analysis: Translate security requirements into firewall design.
• System Deployment: Lead the installation, configuration, and integration of network security technologies including SSE & Firewalls (Palo Alto and Zscaler preferred)
• Collaboration: Contribute to operational and policy decisions around Firewall and SSE technologies that improve Grainger's network security and OT security program
• Tailor Security Configurations: Adapt security settings to meet the unique operational needs of Grainger's OT systems while achieving defined security outcomes.
• Automation & Integration Runbooks: Develop automation scripts and author integration runbooks to ensure seamless and repeatable security tool implementations.
• System Troubleshooting: Quickly diagnose and resolve configuration or performance issues while ensuring minimal disruption to operations.
• Continuous Improvement: Leverage and deploy observability tools to ensure consistent and continual system performance that meets business demand.
• Security Audits: Conduct regular security audits to identify vulnerabilities and implement remedial actions.
• Incident Response: Develop and implement incident response plans to address security breaches and mitigate potential damage
• Collaboration with Architecture: Translate strategic security designs into practical, secure network implementations across the operational environment.

• Bachelor's/master's degree in a relevant field (e.g., Cybersecurity, Electrical Engineering, Computer Science, etc.); or an equivalent level of knowledge gained through on-the-job experience.
• 3+ years of experience designing and implementing Network Firewalls (Palo Alto preferred) and SSE technologies (Zscaler preferred) with a minimum of 2 years in OT Security
• 5+ years required of combined IT and Information Security work experience with a broad exposure to Infrastructure & Networks within multi-platform and cloud environments
• Experience automating Network Security solutions (eg: Python, Ansible)
• Experience with Agile Scrum methodology
• Relevant industry certifications such as CISSP, GICSP, CCNA/CCIE, PCNSE, or ISA/IEC 62443 Cybersecurity Expert
• Have strong technical understanding of the following:

• • Secure Remote Access methods specific to the OT domain. Experience may include Zscaler, Beyond Trust, CyberArk, Xage.
  • Network segmentation and supporting engineering models
  • OT network monitoring and intrusion detection systems. These may include Dragos, Nozomi, and Claroty.
  • Modern-day network designs which account for the hybrid and connected nature of new & emerging technologies (Industry 4.0, edge compute, and CPwE Cloud Connectivity).
  • A working understanding of major Cloud Service Providers
  • A working understanding of OT Incident Response procedures
• Experience translating architectural designs into functional and secure operational deployments
• Working understanding of the IEC/ISA 62443 framework