Network Administrator

Must-Have Technical and Functional Skills Enterprise IT Network

• Cisco switching: Catalyst (Layer 2/Layer 3)
• Cisco wireless: Wireless LAN Controllers (WLCs) and access points
• Firewalls: Cisco Firepower, Cisco ASA, or equivalent
• Cisco DNA Center (DNAC)

• Cisco Identity Services Engine (ISE): network access control and authentication Core Networking

• TCP/IP, VLANs, and VXLAN
• Routing protocols, including OSPF and BGP

• NAT, access control lists (ACLs), and network segmentation OT Awareness - Good to Have Basic understanding of: * IT/OT segmentation * Industrial environments

• OT security concepts Roles and Responsibilities

• Act as the primary subject-matter expert for IT network-related incidents.
• Perform end-to-end troubleshooting and independently resolve network issues.
• Take full ownership of high-severity and production-impacting incidents.
• Perform detailed root cause analysis and implement permanent corrective actions.
• Manage and support Cisco LAN infrastructure, including Catalyst Layer 2 and Layer 3 switches.
• Support wireless infrastructure, including WLCs, access points, and radio-frequency troubleshooting.
• Support Cisco Firepower, Cisco ASA, or equivalent firewall platforms.
• Use Cisco DNA Center for monitoring, assurance, and compliance activities.
• Administer Cisco ISE authentication, network access control, and policy enforcement.
• Proactively identify and remediate network health and performance issues.

• Work with onsite OT and plant network teams on plant network dependencies, industrial connectivity issues, and production-impacting change coordination.

• Provide IT-side input for IT/OT segmentation and security.

• Collaborate with onsite OT and plant network teams to troubleshoot network issues affecting industrial connectivity.

• Execute network configuration changes, upgrades, and patching during approved change windows.
• Support new deployments and site expansions.
• Perform risk assessments and prepare rollback plans for network changes.

• Track hardware and software end-of-life and end-of-support status and coordinate remediation. * Implement and maintain network segmentation, firewall policies, and secure access controls.

• Perform vulnerability remediation, patching, and security incident investigation.
• Coordinate technical support cases with Cisco TAC and other firewall vendors.

• Create, update, and maintain network diagrams, configuration records, IP address management data, SOPs, and runbooks.

• Maintain accurate IT service management records and support audit compliance. Managerial Skills

• Strong ownership mindset and ability to work independently

• Excellent troubleshooting and analytical skills
• Ability to manage production-critical situations under pressure
• Clear communication with IT, OT, and business stakeholders
• High discipline in documentation and change-management processes., BACHELOR OF COMPUTER SCIENCE

$120,000 - $130,000 sick time, 401(k) United States, Pennsylvania, Blue Bell, Salary Range: $120,000 - $130,000 per year TCS Employee Benefit and S ummary: Discretionary Annual Incentive. Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans. Family Support: Maternal & Parental Leaves. Insurance Options: Auto & Home Insurance, Identity Theft Protection. Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement. Time Off: Vacation, Time Off, Sick Leave & Holidays. Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.