Senior Network Security Engineer

2 weeks ago


St Louis, United States Yoh, A Day & Zimmermann Company Full time

As a pivotal member of the IT Infrastructure Team, you will lead the charge in designing, implementing, and maintaining our robust network infrastructure. You’ll be part of a team that works closely with all technology teams to ensure our network is scalable, reliable, and secure. The ideal candidate will be proficient in managing network firewalls, routing, switching, and patch/vulnerability management with a strong emphasis on automation. This position requires taking a lead role on projects (small and large) and following through to completion. You’ll have the opportunity to work with cutting-edge technologies and a dynamic team, fostering an environment of continuous learning and growth.

• Design and implement scalable and reliable enterprise-level network solutions, including routing, switching, and firewall configurations using vendors such as Cisco, Palo Alto, and AWS

• Proactively secure and monitor network infrastructure, identifying and recommending upgrades based on industry best practices

• Lead network vulnerability remediation, participate in security audits, and collaborate on firmware and software patching efforts

• Troubleshoot network issues, optimize network configurations, and enforce best practices for network configuration

• Work closely with business units to understand and meet functional requirements, ensuring a stable and scalable network infrastructure

• Ensure compliance with security standards and best practices for network infrastructure

• Develop and maintain documentation for network infrastructure and processes


Qualifications:

• Bachelor's degree in related field, or equivalent combination of education and experience.

• 5+ years of experience in a similar role, designing, configuring, administering, and supporting IP networks, including subnets, routing, VLAN, DNS, DHCP, QoS, VOIP, TCP/IP monitoring and troubleshooting.

• 5+ years of experience with Cisco or Palo Alto Routing/Switching/Firewalls/IPS preferred

• In-depth knowledge of networking standards, concepts, best practices, and procedures.

• Experience with automation tools such as Terraform, Ansible, Git, and Github are preferred

• In depth experience with monitoring and diagnosing complex network, security and systems issues using tools such as Wireshark.

• Familiarity with the most current networking hardware, software and services.

• Cisco CCNP or CCNP-level equivalent experience and security certifications strongly desired.

• Experience with Cisco Wireless, Identity Services Engine (ISE), Digital Network Architecture (DNA), Application Centric Architecture (ACI), and Palo Pan-OS preferred.

• Ability to work independently and manage multiple projects simultaneously

• AWS certifications are a plus



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