Senior Network Engineer — Cloud & WAN Specialist

FactSet Research Systems; Norwalk (CT); On-site; USD 110,000 - 135,000; Full time

Job summary

FactSet Research Systems is seeking an experienced Network Engineer to design, implement, and maintain a broad range of enterprise network systems across LAN/WAN, data center, and cloud environments. You will monitor performance, troubleshoot complex issues, document configurations, and mentor junior engineers.

The role requires deep protocol expertise, strong vendor experience, and the ability to collaborate with data teams, security, and operations to deliver reliable, scalable networking

Qualifications

• Minimum 5+ years in network engineering or related field.
• Deep understanding of routing protocols and switching.
• Experience with large-scale enterprise networks.
• Bachelor's degree or equivalent; certifications preferred (CCNP/CCIE).

Responsibilities

• Design, implement, and maintain Fortune 500-grade network systems.
• Monitor performance, troubleshoot issues, and optimize reliability.
• Create and maintain network diagrams and runbooks.
• Collaborate with cross-functional teams to deploy new tech.
• Provide weekend on-call support as needed.
• Mentor junior engineers.

Skills

5+ years experience

BGP/EIGRP/OSPF

VLAN/STP/MLAG

TCP/IP

VXLAN/EVPN

Wireshark

Coralogix

gNMI

Load Balancers

Cisco/Arista/Juniper

AWS/Azure

Analytical skills

Education

Bachelor's degree in Computer Science / IT

CCNP

CCIE

Tools

NSX

Infoblox

Linux

Job description

FactSet Research Systems is seeking an experienced Network Engineer to design, implement, and maintain a broad range of enterprise network systems across LAN/WAN, data center, and cloud environments. You will monitor performance, troubleshoot complex issues, document configurations, and mentor junior engineers.

The role requires deep protocol expertise, strong vendor experience, and the ability to collaborate with data teams, security, and operations to deliver reliable, scalable networking