Network Engineer

Sumitomo Chemical Group Companies of America • Libertyville, IL

4h • $109,000 - $133,000 • Hybrid

About The Position

This role serves as a technical resource and network engineer within the IT Operations team, supporting both the IT Service Desk and Infrastructure sub-teams. The position is responsible for designing, maintaining, and troubleshooting all company networks across office locations and datacenters in North America, including cloud and virtual networking environments. It also contributes to resolving Service Desk and Infrastructure tickets that involve network or related technical issues. The engineer provides both on-site and remote support while developing network-related architectural designs for IT systems and applications. This includes work involving switches, routers, firewalls, cloud platforms (AWS), laptops, desktops, servers in both on-premises and cloud environments, printers, networks, peripherals, and vendor-supported software. The role maintains and creates all network diagrams and documentation related to the company’s IT infrastructure. In addition, this position leads networking-related infrastructure projects and initiatives, collaborating closely with the Enterprise Architect/Team Lead and the Senior Manager of IT Service Delivery and Operations. Overall, it combines the responsibilities of a network engineer with elements of an IT infrastructure engineer, with a strong emphasis on networking functions.

Requirements

• Proven experience in network architecture, including the design, implementation, and support of large enterprise networks across on-premises, cloud (AWS), and hybrid environments
• Hands-on expertise with enterprise-grade networking equipment, particularly Fortinet/Fortigate solutions
• Background in SD-WAN technologies and internet backhauling
• Skilled in deploying, managing, and maintaining virtual networking appliances
• Strong, advanced knowledge of networking fundamentals, including subnetting
• Extensive IT troubleshooting capabilities across end-user devices and infrastructure (Windows laptops, Windows Server, iPhones, AWS environments, and network systems)
• Experience working with AWS and/or Azure cloud platforms
• Proficiency with Active Directory, including GPOs, DNS, DHCP, and domain/forest trusts
• Experience with virtualization technologies such as VMware and/or Hyper-V
• Familiarity with enterprise change management processes and participation in Change Management Boards
• Ability to participate in a rotating on-call schedule
• Excellent communication skills with a strong emphasis on customer service
• Bachelor’s in computer science or relevant IT certifications: CCNA, CCNP, CCIE, MCITP/MCSE
• 5+ years of related experience, 8+ years preferred

Nice To Haves

• ServiceNow, CyberArk, LastPass, Okta, Maas360, Tanium, smtp.com
• Border Gateway Protocol (BGP)
• Microsoft O365 experience
• Apple/Mac, Unix/Linux experience

Responsibilities

• Designs, maintains, and supports all North American company networks across offices, datacenters, and cloud environments
• Maintains and administers the SD-WAN infrastructure
• Assists with IT infrastructure tasks and resolves non-network Service Desk tickets as assigned
• Takes full ownership of IT issues, driving them to timely resolution and ensuring all deadlines are met
• Serves as the owner of all network uptime-related SLAs for the organization
• Functions as an escalation point for Service Desk and Infrastructure network alerts
• Responds to after-hours alerts and incidents as required
• Collaborates closely with the Enterprise Architect/Team Lead to achieve Service Desk and Infrastructure goals and initiatives
• Delivers exceptional IT customer service, maintaining the highest standards of professionalism and follow-through
• Provides frequent and clear communication to end users throughout the ticket resolution process.
• Implements, manages, and maintains network infrastructure including firewalls, routers, switches, and related components
• Designs, supports, and maintains all networking hardware within the organization
• Designs, supports, and maintains cloud networking and virtual infrastructure environments, primarily within AWS
• Manages patching processes for firewalls, switches, routers, and access points to ensure security compliance
• Supports remote access technologies such as VPN and RDP
• Creates and maintains IT knowledge base articles and documents IT systems, processes, and procedures
• Participates in cybersecurity initiatives and incident response, maintaining a security-first mindset at all times
• Maintains accurate IT asset documentation and ensures the asset database remains up to date
• Disposes of retired IT assets in accordance with company e-waste recycling procedures
• Monitors software licensing and provides periodic compliance reporting
• Participates in CAB (Change Advisory Board) meetings and submits change requests for planned project work.
• Provides hands-on L1, L2, and L3 IT support across both network-related and general infrastructure Service Desk requests as needed.
• Utilizes ServiceNow to manage Service Desk tickets and consistently meet SLA commitments.
• Ensures compliance with all SLAs, KPIs, uptime requirements, and Service Desk performance metrics
• Performs additional duties and responsibilities as assigned

Benefits

• High-quality healthcare coverage starting on day one, with options for medical (HSA/HRA), vision, and dental plans
• 5% company contribution to your 401(k), plus a quarterly discretionary bonus
• Immediate 100% vesting of all retirement contributions
• Financial assistance programs to support your goals
• Life and disability insurance for added security
• Generous paid time off, including vacation, holidays, and volunteer days
• Flexible work arrangements available

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 501-1,000 employees