Sr. Network Engineer

Brenntag

14d

About The Position

The Sr. Network Engineer leads architecture, design, deployment, and lifecycle management of network infrastructure across multiple global sites. The role owns configuration and advanced troubleshooting for routers, firewalls, switches, and wireless controllers; establishes configuration baselines and team best practices; and works with Information Security on firewall policies, VPNs, segmentation, and Zero-Trust principles.

The engineer defines monitoring strategies and KPIs, proactively manages network health and reliability, and leads root-cause analysis for major incidents. Responsibilities also include planning upgrades and hardware replacements, managing patches and change risk, validating disaster recovery and business continuity arrangements, and architecting hybrid and cloud networking environments. The position drives network automation and Infrastructure-as-Code initiatives and provides technical leadership, design reviews, and mentoring to network engineers while representing the network domain in cross-functional forums.

Requirements

• At least 5 years of hands-on enterprise network engineering experience, including a senior or lead role in complex, multi-site, global environments.
• Expert-level knowledge of TCP/IP, BGP, OSPF, EIGRP, Spanning Tree, HSRP/VRRP, VLANs, and QoS.
• Deep expertise designing, deploying, and troubleshooting enterprise networking equipment such as Cisco, Cisco Meraki, Aruba, Fortinet, or Juniper.
• Strong scripting and automation skills using Python, Terraform, or Ansible, including creating reusable, version-controlled configurations.
• Hands-on experience designing and operating network monitoring systems such as SolarWinds, Cacti, or PRTG, including alerting and capacity planning.
• In-depth experience managing enterprise-scale DHCP, DNS, and IP address management (IPAM).
• Experience with agile frameworks at scale, such as Scrum or Kanban, and contributing to agile transformation.
• Excellent root-cause analysis and decision-making skills to lead and resolve high-pressure, business-critical outages.
• Ability to explain complex infrastructure topologies to technical and non-technical stakeholders and produce clear documentation and designs.
• Proven ability to collaborate with and provide technical leadership to Network Engineers, Architects, Security teams, and Project Managers across the organization.

Nice To Haves

• Relevant senior-level certifications, such as CCNP, CCIE, or equivalent.

Responsibilities

• Define architecture standards and lead design and deployment of scalable, resilient LAN, WAN, SD-WAN, and wireless systems across global sites.
• Own the configuration, lifecycle, and advanced troubleshooting of routers, firewalls, network switches, and wireless controllers; establish configuration baselines and team best practices.
• Design and maintain firewall policies, secure VPNs, network segmentation, and Zero-Trust principles in collaboration with the Information Security team.
• Define monitoring strategy and KPIs, assess network health, proactively prevent latency, packet loss, and outages, and lead root-cause analysis for major incidents.
• Plan and govern hardware replacements, patch management, and system upgrades, including change management and risk assessment for business-critical environments.
• Design and validate failover mechanisms, backup strategies, and business continuity plans to meet recovery objectives (RTO/RPO).
• Architect and manage virtual and hybrid cloud networking across AWS, Azure, or other cloud providers, including connectivity, routing, and security integration.
• Drive network automation and Infrastructure-as-Code initiatives to reduce manual effort, improve consistency, and accelerate delivery.
• Provide technical guidance and mentoring to network engineers, review designs, and represent the network domain in cross-functional and architecture forums.

Benefits

• Individual development, on-the-job training, and development programs designed to help employees grow in their careers.
• Competitive pay and incentives.
• Various healthcare plan options.
• 401(k).

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed