Sr Network Engineer

Role Summary

We’re looking for a Senior Network Engineer to join our Infrastructure & Network team in Leawood, Kansas. This role is for someone who is hands‑on, comfortable owning complex environments, and able to work at both the architecture level and deep into packet‑level troubleshooting when needed. This is not a ticket‑driven operations role or a single‑vendor network. You’ll be expected to design, improve, and support enterprise and data‑center networks that run critical, always‑on systems in a regulated financial environment.

About the role

This role strengthens hands‑on execution in one of our most critical locations as part of our Infrastructure and Network realignment. Senior engineers are expected to act as technical owners, improve reliability, and support infrastructure growth across the Americas.

Responsibilities

• Act as a senior technical resource for routing, switching, and traffic flow across enterprise and data‑center networks.
• Design and support network architectures in a multi‑vendor, mixed‑platform environment.
• Troubleshoot complex issues at all layers, including: Packet capture and analysis (tcpdump, Wireshark), Routing behavior, convergence issues, MTU/MSS problems, asymmetric traffic flows, Load balancer and firewall interactions.
• Build and operate networks using a combination of technologies, including: Cisco and F5 as key platforms, Fortinet firewalls, Dell and HPE networking, Open‑source and software‑based networking components where appropriate.
• Own and operate core protocols such as: BGPEIGRPSpanning Tree (RSTP / MST), VLANs, VRFs, ECMP, and related routing and segmentation concepts.
• Participate directly in: Data center projects and migrations, Hardware installs, replacements, and remediation, Planned maintenance windows and major changes, Travel domestically and internationally (roughly 4–6 weeks per year) to support: Data center work, On-site troubleshooting, Major infrastructure and network initiatives.
• Help define and document network standards, reference architectures, and operational practices.
• Mentor other engineers through design reviews, troubleshooting sessions, and hands‑on work.

Required Experience

• Strong, hands‑on background in enterprise and data‑center networking, with a focus on fundamentals and network behavior, not just vendor syntax.
• Deep understanding of routing and switching concepts.
• Practical experience with: BGPEIGRPSpanning Tree, Network segmentation and traffic isolation.
• Experience operating multi‑vendor environments, including (but not limited to): CiscoF5FortinetDellHPEOpen‑source networking technologies.
• Solid understanding of: TCP/IP behavior, Load balancing concepts, Firewalls, NAT, and asymmetric routing.
• Proven ability to perform low‑level packet capture and protocol analysis to diagnose real production issues.
• Experience supporting high‑availability or regulated environments strongly preferred.

Nice to Have

• Data center build‑out or relocation experience.
• Exposure to hybrid infrastructure or virtualization platforms.
• Network automation experience (Ansible, Python, or similar).
• Prior experience acting as a senior or technical lead.

Benefits & Perks

• Medical, Dental & Vision Insurance
• 401K Plan with Match
• Employee Stock Purchase Plan
• Paid Vacation / Sick Leave
• Hybrid Work Schedule
• Tuition Assistance
• Growth Opportunities
• Corporate gatherings, team bonding events, and much more!