Manager, Network Services

Manager, Network Services

At Tenneco, we don't follow industry standards; we set them, and we don't settle for being best-in-class because we hustle to be better than best-in-class. Whether it's our Core Values radical candor, simplify, organizational velocity, tenacious execution and win or our Get Stuff Done (GSD) mindset, we're determined to become the most trusted partner and best manufacturer and distributor to the transportation industry. With a product portfolio as expansive as it is innovative, an obsessive commitment to quality and excellence, and a global presence, we're all about getting stuff done, so we can win. How do we make it happen? Through the Tenneco Way. Fueled by our Core Values, a winning mindset and a relentless commitment to excellence, the Tenneco Way is how we win. It's what keeps Team Tenneco bold, driven, and unapologetically focused on pushing past limits and redefining success. Here, you'll work alongside a team of relentless problem-solvers who are committed to making a tangible impact. If you're ready to break boundaries, deliver results, and enjoy the ride along the way, you'll thrive here.

DRiV is the aftermarket business group of Tenneco - DRiV website

Manager, Network Services

Reports To: Director, Infrastructure - Platform & Core Services

Level: Manager

Location: Skokie, Illinois, United States

Employment Type: Full-time, DRiV role

Position summary:

The Manager, Network Services is the technical service owner and operational leader for DRiV's enterprise network, data-center fabric, network security operations, DNS/DHCP, remote connectivity, and voice services. Based in Chicago to provide leadership presence for the primary U.S. data-center environment, the role governs a managed service provider and remains close to the network environment. The Manager is expected to provide hands-on troubleshooting and command during major incidents, outages, and complex changes when needed.

Role scope:

• Leading managed service providers supporting network, datacenter, security infrastructure, load balancers, and voice operations
• Stable delivery of global enterprise LAN/WAN and site connectivity
• Managing DNS, DHCP, and NTP services
• Managing wireless access points, controllers, and related infrastructure
• Ownership of firewalls, web proxies, VPN, and related infrastructure with policy governance and approvals owned by Cyber Defense
• Ownership of enterprise voice, SIP, and contact-center services
• Physical presence and support at Chicago and secondary datacenters when required

Key responsibilities:

• Technical service ownership: Own availability, performance, capacity, and supportability for LAN, WAN, DNS, DHCP, VPN, data-center fabric, network security platforms, and voice.
• Lead major network incidents and participate hands-on in packet-level analysis, configuration review, failover, recovery actions, and service validation.
• Manage incidents, problems, changes, requests, monitoring, maintenance windows, carrier escalations, and engineering backlog.
• Maintain accurate diagrams, inventories, configurations, standards, procedures, and recovery documentation.
• Architecture and lifecycle: Maintain roadmaps and standards for campus, branch, WAN, data-center fabric, load balancing, remote access, and voice. Lead complex network designs and partner with Cyber Defense and provider specialists on segmentation, resilience, security, and exceptions. Plan refreshes, upgrades, carrier changes, capacity growth, site transitions, and retirement of unsupported equipment. Ensure new sites, applications, cloud services, and data-center changes have scalable, secure, and supportable designs.
• Data-center operations: Provide on-site leadership for the Chicago data-center network and coordinate work requiring physical presence. Ensure VXLAN fabric operations, provisioning, resilience, capacity, documentation, and changes meet business requirements. Coordinate with platform, facilities, site support, carriers, and providers for maintenance and incidents. Establish and test recovery and failover procedures for critical network services.
• Network security partnership: Manage technical execution for firewall, VPN, proxy, load-balancer, and network-security changes under Cyber Defense governance. Require approved requests, business justification, testing, rollback plans, and post-change validation. Partner with Cyber Defense on segmentation, exposure reduction, vulnerability remediation, logging, configuration, and incident response.
• Provider, carrier, and financial management: Set measurable technical and service expectations for the managed service provider and lead corrective actions. Manage carrier performance, contracts, maintenance, licensing, and technical escalations. Validate circuit inventory and invoice accuracy with IT Financial Operations. Develop forecasts and business cases for bandwidth, resilience, refresh, modernization, and site connectivity.

Required qualifications and experience:

• 8+ years of progressive enterprise network experience, including 3+ years leading technical teams or service providers
• Deep hands-on knowledge of LAN/WAN, routing, switching, DNS, DHCP, VPN, firewalls, load balancing, and monitoring, with the ability to troubleshoot directly during outages
• Experience with data-center networks and VXLAN or comparable overlay technologies
• Experience managing carriers, circuits, providers, incidents, changes, capacity, and lifecycle programs
• Working knowledge of segmentation, secure configuration, logging, and controlled firewall-change processes
• Ability to provide leadership presence for a critical data-center environment and support after-hours incidents and changes
• Bachelor's degree in information technology, computer science, engineering, or equivalent experience

Preferred qualifications and experience:

• Cisco enterprise and data-center networking, F5, Zscaler, enterprise firewalls, SIP, and contact-center experience
• CCNP/CCIE, ITIL, cloud-networking, or network-security certification
• Global manufacturing, SD-WAN, data-center modernization, segmentation, or separation-program experience

Key working relationships:

• Infrastructure and cybersecurity leadership
• Applications, Shared Infrastructure Services, Site Support, Finance, Procurement, and business stakeholders
• Managed service provider leadership, technical leads, engineers, carriers, and technology vendors

Travel and working requirements:

• Periodic travel may be required.
• The role participates in planned after-hours changes and critical incident response when necessary.

Equal opportunity employer as to all protected groups, including protected veterans and individuals with disabilities

Nearest Major Market: Chicago