Sr Network Engineer (On-Site St. Louis)

This position requires permanent U.S. work authorization. Candidates requiring current or future visa sponsorship, including those on OPT, CPT or H1/H4, are not eligible for this role.

About the role

World Wide Technology (WWT) is seeking a Network Engineer for a six-month contract-to-hire engagement on the Business Infrastructure Services team, with the opportunity to convert to a full-time role based on performance and business need. As a valued member of the team, you will design, implement, and maintain network infrastructure supporting WWT's NAIC warehouse operations while actively contributing to network security initiatives that protect, segment, and harden those environments. This role requires an on-site presence at the NAIC warehouses in Edwardsville, IL, and demands strong communication skills to collaborate with warehouse integration center leadership and cross-functional IT resources.

WWT is looking for candidates who continually strive to improve themselves and the organization by identifying enhancement opportunities for the support and services offered to stakeholders.

Responsibilities

• Core Network Engineering
  • Design, configure, install, test, and maintain Cisco networking equipment — including routers, switches, firewalls, wireless controllers, and access points — across data center, remote site, and cloud environments.
  • Configure and maintain static and dynamic routing protocols, including BGP and EIGRP, for internal and external connectivity.
  • Configure and troubleshoot LAN protocols such as VPC, LACP, and STP.
  • Deploy and maintain wireless networks by performing site surveys to properly locate, install, and RF-tune access points for optimal coverage.
  • Configure and maintain monitoring tools for proactive analysis, alerting, and trend analysis of network health and performance.
  • Troubleshoot network performance issues in collaboration with vendors, carriers, and end users.
  • Review Quality of Service (QoS) configuration and perform operability and performance testing to proactively optimize the network.
  • Perform scheduled maintenance on network infrastructure.
  • Assist in creating and maintaining disaster recovery plans.
  • Create and maintain documentation including as-builts, network diagrams, and knowledge-base articles.
  • Generate hardware and software procurement lists and follow established processes to procure items.
  • Develop and maintain network automation processes using Python, Ansible, or similar languages.
  • Provide technical support and training to other teams as needed.
• Network Security
  • Configure and manage Cisco firewalls (ASA / Firepower) including NAT rules, ACLs, DACLs, and security policies.
  • Design and implement network segmentation strategies — VLANs, VRFs, and microsegmentation — to limit lateral movement and enforce least-privilege access.
  • Support zero trust network access (ZTNA) initiatives by applying identity-aware, context-driven access policies across the network.
  • Deploy, tune, and maintain IDS/IPS systems for threat detection and prevention across the perimeter and internal network segments.
  • Configure and support VPN technologies including DMVPN, IPSec site-to-site VPN, and remote access VPN for secure connectivity.
  • Monitor network traffic for anomalous behavior and participate in incident response activities alongside the security team.
  • Collaborate with the security team to remediate vulnerabilities and implement network-level security controls.
  • Enforce network security policies aligned with organizational standards and industry best practices.
• Communication & Collaboration
  • Communicate work-related tasks clearly, both verbally and in writing.
  • Follow established processes and maintain thorough documentation.
  • Think creatively to identify new and efficient ways to solve technical problems.

Requirements

• Minimum 5 years of network administration experience.
• Working knowledge of network administration principles, methods, and techniques, including relevant hardware and software.
• Bachelor's degree in Computer Science, Mathematics, Statistics, or Engineering, or an equivalent combination of education and network administration experience.
• CCNA certification; active pursuit of CCNP preferred.
• Hands-on experience with Cisco or equivalent enterprise firewall platforms.
• Familiarity with zero trust principles, network segmentation design, and IDS/IPS tuning.
• Previous experience maintaining networking components in data center and remote site environments.

Pay

A reasonable estimate of the current base pay range for this position is $108,400 to $135,500 annually. Actual salary will be based on a variety of factors, including shift, location, experience, skill set, performance, licensure and certification, and business needs.

Benefits

• Health and Wellbeing
  • Health (Medical & Prescription), Dental, and Vision Care
  • Onsite Health Centers (MO & IL)
  • Employee Assistance Program
  • Wellness program
• Financial Benefits
  • Competitive Pay
  • Profit Sharing
  • 401k Plan with Company Matching
  • Life and Disability Insurance
  • Flexible Spending Accounts
  • Tuition Reimbursement
• Paid Time Off
  • PTO & Holidays
  • Parental Leave
  • Medical Leave
  • Military Leave
  • Bereavement
  • Day of Caring
• Additional Perks
  • Family Planning Benefits
  • Nursing Mothers Benefits
  • Voluntary Legal
  • Voluntary Supplemental Accident/Illness/Hospital
  • Voluntary ID Theft
  • Pet Insurance
  • Employee Discount Program