Summary The Reliability Network Engineer and Cybersecurity Coordinator is responsible for the design, support, security, and lifecycle management of Operational Technology (OT) infrastructure and networking systems while ensuring compliance with cybersecurity standards and risk management requirements. This role serves as a technical bridge between Operations, Engineering, Information Technology, Cybersecurity, and external partners to develop and maintain secure, resilient, and scalable OT environments that support critical manufacturing operations. The position combines industrial network architecture and infrastructure support with cybersecurity governance, compliance oversight, vulnerability management, and risk reduction initiatives. Duties and Responsibilities include, but are not limited to: OT Network Architecture, Design & Operations Design, document, and maintain OT network architecture, including logical and physical topology diagrams. Develop standardized OT network design patterns for plant departments, CCTV systems, and adjacent facilities. Support solutioning efforts for new OT deployments, expansions, and modernization initiatives, ensuring scalability, reliability, and security. Define standards for segmentation, zoning, and isolation in alignment with NIST 800-82r3 models. Coordinate support for OT networks including industrial Ethernet, fieldbus, and serial-to-IP integrations. Troubleshoot OT network issues related to latency, availability, redundancy, and device communication. Support configuration and maintenance of OT-related network devices such as industrial switches, firewalls, routers, wireless systems, and remote access solutions. Assist with redundancy and high-availability designs (e.g., ring topologies, redundant paths, failover strategies). IT/OT Integration & Solutioning Act as a liaison between OT, IT networking, and cybersecurity teams to ensure well-integrated and securely connected OT environments. Collaborate on the design of IT/OT demilitarized zones (DMZs) and secure remote access solutions. Evaluate technical requirements and propose security network-based solutions that align operational needs with enterprise standards. Participate in architecture reviews and technical design discussions for OT initiatives. Participate in technology engineering and implementation reviews to provide cybersecurity and compliance guidance to ensure it aligns with industry best practices BlueScope policies and direction. Cybersecurity, Risk & Compliance Monitor security alerts and events to identify potential threats. Assist in analyzing and responding to security incidents. Conduct regular reviews of BlueScope and third-party vulnerability assessments on systems and networks. Support OT cybersecurity architecture efforts including segmentation, access control, monitoring points, and defense-in-depth strategies. Coordinate and implement vulnerability remediation and patching activities for OT network devices. Ensure network designs comply with internal policies and external frameworks such as ISA/IEC 62443 and NIST. Participate in risk assessments and incident response related to OT network infrastructure. Partner with the Global Cybersecurity & Digital Trust team to perform continual risk and compliance reviews on services, software, 3rd Party assessments and infrastructure the business uses. Work directly with teams across the organization to coordinate and manage the identification and remediation of issues and risks related to cybersecurity and compliance. Utilize security exemption processes for vulnerability remediation, systems, or solutions not in compliance with security policies or standards. Asset, Lifecycle & Standards Management Maintain inventories of OT networking assets, including computers, switches, firewalls, etc. as well as radios, cabling standards, and firmware versions. Track network hardware lifecycle, end-of-support timelines, and capacity planning needs. Support development and enforcement of OT networking standards, naming conventions, and design guidelines. Assist with vendor evaluations, architecture reviews, and solution selection. Conduct periodic audits to ensure compliance with security policies. Regularly update the Cybersecurity Team Leader and other key stakeholders on status of open risk reviews, remediation and other risk and compliance related projects. Documentation & Change Management Produce and maintain detailed OT network documentation, including diagrams, addressing schemes, and configuration standards. Support formal change management processes for OT network modifications. Assist with root cause analysis related to network outages or performance issues. Obtain and maintain deep understanding of Infosec technologies, processes, capabilities, and services. Training & Continuous Improvement Provide guidance and technical mentorship to OT technicians and engineers on networking best practices. Promote improved network visibility, standardization, and performance monitoring within OT environments. Identify opportunities to improve resilience, simplify architectures, and reduce operational risk. Support the implementation and maintenance of security technologies. Assist in configuring and fine-tuning security tools and systems. Required Qualifications Bachelor’s degree in Cybersecurity or Information Technology or Computer Science or equivalent experience in related field. Basic understanding of information technology and cybersecurity terminologies, processes, and security concepts. Demonstrated organization, facilitation, communication, and presentation skills. Microsoft Windows desktop/server administration. Familiarity with computer hardware. Good analytical and critical thinking skills. Willing to be contacted outside of office hours, including nights and weekends, to address production critical issues. Preferred Qualifications 2+ years of work experience in information security or related field. 2+ years of experience with OT computer infrastructure and support. Certifications such as GIAC Security Essentials or CompTIA Security certifications. Experience with security information and event management (SIEM) tools. Understanding of cloud security concepts and technologies. Eagerness to learn and adapt to new technologies and security trends. Ability to work collaboratively in a team environment. Strong passion for cybersecurity and a desire to learn and grow in the field. Backup Solutions: Experience with managing enterprise backup solutions (Veeam). Experience with Remote Monitoring and Management platforms (i.e. Connectwise Automate, SCCM, Intune). Experience with WSUS and offline patching software. Familiarity with deployment and support of Operating Systems such as Microsoft Windows and Enterprise Linux distributions (Red Hat, Ubuntu, Rocky Linux). Hands-on experience configuring and maintaining virtual environments (VMware vSphere, Microsoft Hyper-V). Advanced management of Active Directory and Group Policy Objects. Automation and scripting: Ability to write scripts in PowerShell, Bash, batch files, etc. Network fundamentals: Basic understanding of core networking concepts such as TCP/IP, DNS, and VLANs. North Star BlueScope Steel is an Equal Opportunity Employer that values and respects the importance of a diverse and inclusive workforce. It is the policy of the company to recruit, hire, train and promote persons in all job titles without regard to race, color, religion, sex, age, national origin, veteran status, disability, sexual orientation, or gender identity. We recognize that diversity and inclusion is a driving force in the success of our company. We are a global leader in metal coating and painting products for building and construction industries, providing vital components for houses, buildings, structures, vehicles and more. We have built a solid foundation for growth with a diverse portfolio of businesses in some of the largest and fastest growing economies of the world. We are headquartered in Australia, with our people and operations spread across North America, Australia, New Zealand, Pacific Islands and throughout Asia. Introduce yourself to our recruiters and we'll get in touch if there's a role that seems like a good match.

Reliability Network Engineer & Cybersecurity Coordinator.

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