W. W. Grainger
Senior Security Engineer - Operational Technology Network
W. W. Grainger, Lake Forest, Illinois, United States, 60045
Overview
Grainger is seeking an Operational Technology Network Security Engineer with a strong background in network security and the OT/ICS domain. This mid-level engineering role requires a broad understanding of network security concepts and the ability to implement security controls that meet the intended design. The successful candidate is familiar with general security engineering concepts, comfortable in a cross-functional engineering environment, and able to identify security concerns and recommend mitigations. Location:
LAKE FOREST, IL, US, 60045-5202 Work Location Type:
Hybrid About Grainger: W.W. Grainger, Inc., is a leading broad line distributor with operations primarily in North America, Japan and the United Kingdom. Grainger keeps the world working by serving more than 4.5 million customers worldwide with products and solutions delivered through innovative technology and deep customer relationships. The Company had 2024 revenue of $17.2 billion across its two business models. For more information, visit www.grainger.com. Compensation The anticipated base pay compensation range for this position is $110,500.00 to $184,100.00. Rewards and Benefits: With benefits starting on day one, Grainger offers programs to meet team members\' individual needs, including: Medical, dental, vision, and life insurance plans with coverage starting on day one and 6 free therapy sessions per year. 18 PTO days annually for full-time employees and 6 company holidays per year. 6% company contribution to a 401(k) plan each pay period, with no employee contribution required. Employee discounts, tuition reimbursement, student loan refinancing and access to financial counseling 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. For additional information regarding Grainger’s benefits, please see the company materials. Responsibilities You will: As an Operational Technology Network Security Engineer, you will protect Grainger OT assets by implementing advanced network security tools, automating and integrating Grainger network security tools and processes, and collaborating across the Information Security and IT organizations, including making smart long-term decisions. You will report to the Senior Manager of Information Security Engineering. Core Responsibilities: 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 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. You have: 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 of combined IT and Information Security work experience with broad exposure to Infrastructure & Networks within multi-platform and cloud environments. Experience automating Network Security solutions (e.g., Python, Ansible). Experience with Agile Scrum methodology. Relevant industry certifications such as CISSP, GICSP, CCNA/CCIE, PCNSE, or ISA/IEC 62443 Cybersecurity Expert. Strong technical understanding of secure remote access methods in OT (e.g., Zscaler, Beyond Trust, CyberArk, Xage). Network segmentation and supporting engineering models. OT network monitoring and intrusion detection systems (Dragos, Nozomi, Claroty). Modern network designs for hybrid and connected environments (Industry 4.0, edge compute, CPwE Cloud Connectivity). Working understanding of major Cloud Service Providers. Working understanding of OT Incident Response procedures. Experience translating architectural designs into secure operational deployments. Working understanding of the IEC/ISA 62443 framework. We are committed to equal employment opportunity regardless of protected characteristics and status. We are proud to be an equal opportunity workplace. We are committed to fostering an inclusive, accessible work environment and can provide reasonable accommodations during the application and hiring process and throughout employment upon request.
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Grainger is seeking an Operational Technology Network Security Engineer with a strong background in network security and the OT/ICS domain. This mid-level engineering role requires a broad understanding of network security concepts and the ability to implement security controls that meet the intended design. The successful candidate is familiar with general security engineering concepts, comfortable in a cross-functional engineering environment, and able to identify security concerns and recommend mitigations. Location:
LAKE FOREST, IL, US, 60045-5202 Work Location Type:
Hybrid About Grainger: W.W. Grainger, Inc., is a leading broad line distributor with operations primarily in North America, Japan and the United Kingdom. Grainger keeps the world working by serving more than 4.5 million customers worldwide with products and solutions delivered through innovative technology and deep customer relationships. The Company had 2024 revenue of $17.2 billion across its two business models. For more information, visit www.grainger.com. Compensation The anticipated base pay compensation range for this position is $110,500.00 to $184,100.00. Rewards and Benefits: With benefits starting on day one, Grainger offers programs to meet team members\' individual needs, including: Medical, dental, vision, and life insurance plans with coverage starting on day one and 6 free therapy sessions per year. 18 PTO days annually for full-time employees and 6 company holidays per year. 6% company contribution to a 401(k) plan each pay period, with no employee contribution required. Employee discounts, tuition reimbursement, student loan refinancing and access to financial counseling 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. For additional information regarding Grainger’s benefits, please see the company materials. Responsibilities You will: As an Operational Technology Network Security Engineer, you will protect Grainger OT assets by implementing advanced network security tools, automating and integrating Grainger network security tools and processes, and collaborating across the Information Security and IT organizations, including making smart long-term decisions. You will report to the Senior Manager of Information Security Engineering. Core Responsibilities: 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 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. You have: 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 of combined IT and Information Security work experience with broad exposure to Infrastructure & Networks within multi-platform and cloud environments. Experience automating Network Security solutions (e.g., Python, Ansible). Experience with Agile Scrum methodology. Relevant industry certifications such as CISSP, GICSP, CCNA/CCIE, PCNSE, or ISA/IEC 62443 Cybersecurity Expert. Strong technical understanding of secure remote access methods in OT (e.g., Zscaler, Beyond Trust, CyberArk, Xage). Network segmentation and supporting engineering models. OT network monitoring and intrusion detection systems (Dragos, Nozomi, Claroty). Modern network designs for hybrid and connected environments (Industry 4.0, edge compute, CPwE Cloud Connectivity). Working understanding of major Cloud Service Providers. Working understanding of OT Incident Response procedures. Experience translating architectural designs into secure operational deployments. Working understanding of the IEC/ISA 62443 framework. We are committed to equal employment opportunity regardless of protected characteristics and status. We are proud to be an equal opportunity workplace. We are committed to fostering an inclusive, accessible work environment and can provide reasonable accommodations during the application and hiring process and throughout employment upon request.
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