Sr. Engineer, IT Infrastructure Engineering

vwr; United States; On-site; USD 140,000 - 190,000; Full time

Job summary

Avantor is seeking a Senior Network Engineer to design, implement, and optimize enterprise networking across on-premises, cloud, and government-regulated environments. This role leads complex infrastructure projects, develops standards, and mentors junior engineers while ensuring secure, reliable, and scalable network services.

The position requires leading architecture reviews, incident response, and collaboration with Security, Cloud, and IAM teams to align networking with business goals and

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent experience.
• Preferred Certifications Cisco CCNP Enterprise
• Cisco CCIE (Preferred)
• Aruba Certified Professional
• AWS Advanced Networking Specialty
• Palo Alto PCNSE
• CISSP (Preferred)

Responsibilities

• Design, implement, and maintain enterprise LAN, WAN, WLAN, SD-WAN, cloud, and data center networking solutions.
• Lead architecture reviews and improve performance, resiliency, scalability and security.
• Develop and maintain enterprise network standards, design docs, and operational procedures.
• Ensure solutions align with enterprise architecture, cybersecurity requirements, and best practices.

Tools

Cisco Catalyst

Cisco Nexus

Cisco ISR/ASR

Cisco SD-WAN

Aruba CX

Aruba Wireless

HPE Networking

BGP

OSPF

EIGRP

VLANs

VRF

QoS

MPLS

VPN

Multicast

High Availability

Python

PowerShell

Ansible

Cisco DNA Center

Aruba Central

SolarWinds

ServiceNow

Wireshark

Git

AWS

Azure

VMware

Hyper-V

Direct Connect

ExpressRoute

Hybrid Networking

Palo Alto

Cisco ISE

Aruba ClearPass

Cisco Firepower

Cisco Umbrella

MFA

Zero Trust

CISSP

CMMC

NIST

Job description

The Opportunity:

At Avantor, people are the most important part of our success because they drive our global performance. That's why our Operations, Lab Services, Sales, and many other Avantor teams rely on our talent acquisition initiatives to attract, engage and hire the right talent. Avantor's IT team is a crucial part of this mix, enabling all our internal teams worldwide to grow beyond their limits.

The Senior Network Engineer is responsible for the design, implementation, optimization, and support of enterprise network infrastructure across on-premises, cloud, and government-regulated environments. This role serves as the technical lead for complex network initiatives, providing advanced engineering expertise while ensuring secure, reliable, and scalable network services.

The Senior Network Engineer leads the planning and execution of strategic infrastructure projects, develops enterprise network standards, mentors junior engineers, and collaborates with cross-functional teams to align technology solutions with business and cybersecurity objectives. This position is expected to independently lead initiatives from design through implementation while maintaining operational excellence.

What we're looking for:

Education:

• Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent experience.


• Preferred Certifications Cisco CCNP Enterprise


• Cisco CCIE (Preferred)


• Aruba Certified Professional


• AWS Advanced Networking Specialty


• Palo Alto PCNSE


• CISSP (Preferred)

Experience:

• 8+ years of enterprise network engineering experience with leadership of complex infrastructure projects, cloud networking, and regulated environments.


• Networking: Cisco Catalyst, Cisco Nexus, Cisco ISR/ASR, Cisco SD-WAN, Aruba CX, Aruba Wireless, HPE Networking, BGP, OSPF, EIGRP, VLANs, VRF, QoS, MPLS, VPN, Multicast, High Availability


• Security: Cisco ISE, Aruba ClearPass, Palo Alto, Cisco Firepower, Cisco Umbrella, TACACS+, RADIUS, 802.1X, PKI, MFA, Zero Trust


• Cloud & Infrastructure: AWS, Azure, VMware, Hyper-V, Direct Connect, ExpressRoute, Hybrid Networking


• Automation & Tools: Python, PowerShell, Ansible, Cisco DNA Center, Aruba Central, SolarWinds, ServiceNow, Wireshark, Git

How you will create an impact:

Network Architecture & Engineering

• Design, implement, and maintain enterprise LAN, WAN, WLAN, SD-WAN, cloud, and data center networking solutions.


• Lead architecture reviews and recommend improvements to increase network performance, resiliency, scalability, and security.


• Develop and maintain enterprise network standards, design documentation, and operational procedures. Evaluate emerging technologies and recommend strategic improvements.


• Ensure solutions align with enterprise architecture, cybersecurity requirements, and operational best practices.

Project Leadership

• Serve as the technical lead for complex infrastructure projects and network modernization initiatives.


• Lead planning, implementation, testing, migration, and post-implementation support.


• Coordinate activities with Infrastructure, Security, Cloud, Server, IAM, Site Services, and business stakeholders.


• Manage vendor relationships and third-party implementation activities.


• Provide technical guidance during planning, budgeting, and business case development.

Network Operations

• Provide Level 3/4 support for complex networking issues.


• Lead root cause analysis for major incidents.


• Drive continuous improvement through monitoring, automation, and lifecycle management.


• Develop operational documentation and runbooks.


• Participate in on-call support and critical incident response.

Security & Compliance

• Design and maintain secure network architectures supporting corporate and government environments.


• Implement Cisco ISE, Aruba ClearPass, Palo Alto, Cisco Firepower, Cisco Umbrella, MFA, and NAC technologies.


• Support compliance with CMMC, NIST, CIS Controls, and FIPS where applicable.


• Support internal and external audits.

Technical Leadership

• Mentor Network Engineers and provide technical leadership.


• Review designs, implementation plans, and change requests.


• Promote engineering standards and best practices.


• Lead knowledge sharing and documentation.


• Participate in disaster recovery and business continuity planning.

Disclaimer:

The above statements are intended to describe the general nature and level of work being performed by employees assigned to this classification. They are not intended to be construed as an exhaustive list of all responsibilities, duties and skills required of employees assigned to this position. Avantor is proud to be an equal opportunity employer.

Why Avantor?

Dare to go further in your career. Join our global team of 14,000+ associates whose passion for discovery and determination to overcome challenges relentlessly advances life-changing science.

The work we do changes people's lives for the better. It brings new patient treatments and therapies to market, giving a cancer survivor the chance to walk his daughter down the ais