Senior Network Architect: Cloud, Security & SD-WAN Lead

Sargent & Lundy

Chicago (IL)

Hybrid

USD 97,864 - 149,514

Full time

14 days+

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Benefits offered by this job

Health Plans: Medical, Dental, Vision

Life & Accident Insurance

Disability Coverage

401(k)

Paid Time Off

Flexible Work Arrangements

Tuition Assistance

Employee Discount Program

Job summary

Sargent & Lundy in Chicago invites a Senior Network Architect to shape the strategy, design, and roadmap for our enterprise network across data centers, cloud, WAN, and security. You will work with infrastructure, security, and application teams to deliver highly available, secure connectivity using Cisco and Meraki technologies and cloud integrations.

The role offers a hybrid schedule with three days in our downtown Chicago office and two days remote, with occasional travel for site work.

Qualifications

Bachelor’s degree in CS/IT/Network Engineering or equivalent experience.
10+ years enterprise networking, 5+ years in senior/architecture roles.
Comprehensive Cisco/Meraki experience (campus, Wi‑Fi, WAN, VPN, and NAC).
Extensive Palo Alto NGFW and security policy design.
Proven route/switch expertise in complex multi‑site environments.
Hands‑on with DNS, DHCP, VPN, cert management, and auth protocols.
Experience with Load balancers, WAF, MPLS/WAN, and cloud networking.
Clear and concise documentation and ability to explain complex designs.

Responsibilities

Lead and evolve end‑to‑end enterprise network architecture with focus on redundancy, failover, and availability.
Design and operate Cisco/Catalyst/Meraki networks and core routing/switching.
Own Azure and cloud networking (vNets, hybrid connectivity, DNS/DHCP/IPAM).
Lead NGFW and Zscaler/GlobalProtect architecture and VPN management.
Design and support load balancing and WAF for secure delivery.
Work with carriers on MPLS/WAN and routing policies.
Define and maintain network standards, baselines, and patterns.
Provide tier‑3 escalation, maintain diagrams and runbooks, drive new technologies.
Mentor engineers on design, security, documentation, and automation.