Sr. Network Engineer
Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 26, 2026. Brenntag scores B on the Alion truth index.
Responsibilities:
Network Architecture & Design Leadership: Define architecture standards and lead the design and deployment of scalable, resilient Local Area Networks (LAN), Wide Area Networks (WAN), SD-WAN, and wireless systems across multiple global sites.
Infrastructure Ownership: Own the configuration, lifecycle, and advanced troubleshooting of routers, firewalls, network switches, and wireless controllers, setting configuration baselines and best practices for the team.
Network Security: Design and maintain firewall policies, secure Virtual Private Networks (VPNs), segmentation, and Zero-Trust principles in close collaboration with the Information Security team.
Performance & Reliability: Define monitoring strategy and KPIs, analyze network health to proactively prevent latency, packet loss, and outages, and lead root-cause analysis for major incidents.
Infrastructure Upgrades & Lifecycle: Plan and govern hardware replacements, patch management, and system upgrades, including change management and risk assessment for business-critical environments.
Disaster Recovery & Resilience: Design and validate failover mechanisms, backup strategies, and business continuity plans, ensuring recovery objectives (RTO/RPO) are met.
Cloud & Hybrid Networking: Architect and manage virtual and hybrid cloud networking environments across AWS, Azure, or other cloud providers, including connectivity, routing, and security integration.
Automation & Standardization: Drive network automation and Infrastructure-as-Code initiatives to reduce manual effort, improve consistency, and accelerate delivery.
Technical Leadership & Mentoring: Provide technical guidance and mentoring to network engineers, review designs, and represent the network domain in cross-functional and architecture forums.
Requirements:
(The abilities that the individual needs to perform this role effectively)
Experience Level: 5+ years of hands-on enterprise network engineering, including a senior or lead role in complex, multi-site, global environments.
- Protocols & Routing: Expert-level knowledge of TCP/IP, dynamic routing protocols (BGP, OSPF, EIGRP), Spanning Tree, HSRP/VRRP, VLANs, and QoS.
- Hardware Providers: Deep expertise with enterprise networking equipment such as Cisco, Cisco Meraki, Aruba, Fortinet, or Juniper, including design, deployment, and advanced troubleshooting.
- Network Automation: Strong scripting and automation skills using Python, Terraform, or Ansible to automate infrastructure tasks and build reusable, version-controlled configurations.
- Network Monitoring: Hands-on experience designing and operating monitoring with systems such as SolarWinds, Cacti, or PRTG, including alerting and capacity planning.
- Services Management: In-depth experience managing core network services including DHCP, DNS, and IP address management (IPAM) at enterprise scale.
- Ways of Working: Experience with agile frameworks at scale (Scrum, Kanban) and contributing to agile transformation; relevant senior-level certifications (e.g. CCNP/CCIE or equivalent) are a strong plus.
Other Requirements:
- Problem-Solving: Excellent root-cause analysis and decision-making skills to lead and resolve high-pressure, business-critical outages.
- Communication: Ability to explain complex infrastructure topologies to both technical peers and non-technical stakeholders, and to produce clear documentation and designs.
- Collaboration & Leadership: Proven ability to work effectively with and provide technical leadership to Network Engineers, Architects, Security teams, and Project Managers across the organization.
OUR OFFER
- We aim to create an environment where the best people want to work, where they can turn their passion into their job and realize their full potential
- Individual development, on-the-job training, and development programs designed to help our employees grow in their careers
- Competitive pay and incentives
- Various healthcare plan options as well as 401(k)
ABOUT BRENNTAG
Brenntag is the global market leader in chemicals and ingredients distribution. The company holds a central role in connecting customers and suppliers of the chemical industry. Headquartered in Essen, Germany, Brenntag has more than 17,000 employees worldwide and operates a network of about 700 sites in 78 countries. In 2021, Brenntag generated sales of around 14.4 billion EUR. The two global divisions, Brenntag Essentials and Brenntag Specialties, provide a full-line portfolio of industrial and specialty chemicals and ingredients as well as tailor-made application, marketing and supply chain solutions, technical and formulation support, comprehensive regulatory know-how, and digital solutions for a wide range of industries. In the field of sustainability, Brenntag pursues specific goals and is committed to sustainable solutions in its own sector and the industries served. Brenntag shares have been listed at the Frankfurt Stock Exchange since 2010, initially in the MDAX and since September 2021 in the DAX. In addition, the Brenntag SE shares are listed in the DAX 50 ESG and DAX ESG Target. For more information, visit www.brenntag.com.
INTERESTED?
We look forward receiving your application.
Brenntag and its subsidiary companies will provide equal employment opportunities to all applicants without regard to any category protected by federal, state or local law, including as applicable, applicant’s actual or perceived race, color, religion, creed, sex, sexual orientation, gender identity or expression (including transgender status), gender (including pregnancy, childbirth, lactation and related medical condition), genetic information, military service, national origin, ancestry, citizenship status, age, veteran status, physical or mental disability, protected medical condition as defined by applicable federal, state or local law, political affiliation, marital status, membership in an employee organization, parental status, expunged juvenile record, or any other status protected by federal, state, or local law. Brenntag will provide reasonable accommodations to allow an applicant to participate in the hiring process (e.g., accommodations for a test or job interview) if so requested. When completing this application, you may exclude information that would disclose or otherwise reference your race, religion, age, sex, genetic, veteran status, disability or any other status protected by federal, state, or local law. This application is considered current for sixty (60) days only. At the end of this period, if you are still interested in employment, it will be necessary for you to reapply by completing a new application.
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