Sr. Network Administrator Job at CF Industries (Northbrook)

Job Description

Sr. Network Administrator is responsible for providing technical expertise in the management of a public and/or private network; tests and analyzes network facilities, including network control software, routers, switches, lines, modems, adapters and servers. Installs, supports and/or maintains LANs and/or WANs; evaluates and recommends networking product and software upgrades. Performs technical analyses of software, hardware and transmission facilities using various diagnostic tools in support of efficient network operations. Monitors data traffic and controls network resource performance to ensure high-quality transmission. Identifies, diagnoses, and resolves technical problems related to network failure/ integrity and usage of PC hardware and software.

Job Responsibility

Design and troubleshoot site level network equipment for the purpose of maximizing performance, security, and reliability (e.g. firewalls, routers, switches, wireless access points, controllers, and vendor appliances)
Understand cloud network architecture
Lead teams and site level projects with minimal supervision and guidance
Design and troubleshoot enterprise level operational technologies that interact with the manufacturing control systems for the purpose of maximizing performance, security, and reliability
Design processes, policies, and procedures supporting internal controls, cybersecurity, and data protection of sensitive data
Design and troubleshoot technology infrastructure to mitigate risk and define new controls to ensure mitigation of risk
Define site level software-defined wide area network (SD-WAN) and related infrastructure
Design and troubleshoot network configurations and access control rules of cloud networks (e.g. Microsoft Azure) as well as on-premises and hybrid environments
Lead initiatives to improve Intrusion Detection and Prevent Systems (IDS/IPS)
Work closely with IT site leads at various locations in the U.S., Canada, and the U.K. to ensure network and security solutions are operating as expected
Understand and comply with established processes and procedures designed to support internal controls efforts, including Change Control procedures across all modifications to the environment
Identify to management internal controls deficiencies

Requirements

Bachelor’s degree (Information Technology/Computer Science) or its equivalent in a related field is typically preferred
Network certifications such as Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP), CompTIA Network+ are desired
8+ Years of related professional work experience may be preferred to complete all essential job functions
Strong foundational knowledge in information technology, including Cisco equipment and Windows servers
Knowledge about software defined networks (SD-WAN) preferred
Knowledge about Microsoft’s Azure cloud / M365 environment preferred
On-call and support outside of business hours may be required
Safety training may be required

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