Senior Network Security Engineer

Radiant Industries•El Segundo, CA

19h•Onsite

About The Position

Radiant is looking for a hands-on Senior Network Security Engineer to own our network infrastructure as we scale. You will be the primary architect and administrator for our network security fabric, bridging our on-premise locations with our growing cloud footprint. This is not a "maintain the lights" role — you will lead critical infrastructure initiatives immediately, including migrating core services to a colocation facility (Equinix) and redesigning our site-to-site connectivity using Fortinet SD-WAN.

Requirements

5+ years of network engineering experience with a heavy focus on security and hybrid environments
Deep, hands-on experience with FortiOS — comfortable configuring HA clusters, VDOMs, and SD-WAN rules from scratch (NSE 7 certification is a strong plus)
Solid understanding of cloud networking constructs, including VPCs, VNETs, Transit Gateways, and Security Groups
Willingness to be hands-on with hardware when necessary — racking, cabling, and physically configuring devices in the datacenter
Ability to troubleshoot complex connectivity issues spanning the physical layer, ISP routing, and cloud firewalls

Nice To Haves

Experience connecting distributed sites (e.g., warehouses, remote offices) via SD-WAN
Background in regulated or high-security industries
Experience with network automation tools such as Ansible, Terraform, or Python

Responsibilities

Lead the design and implementation of moving on-premise servers and network gear to a secure Equinix datacenter cage; ensure high-availability connectivity between the datacenter, HQ, and warehouse sites.
Serve as the Subject Matter Expert (SME) for our Fortinet stack — manage and optimize FortiGate firewalls (HA pairs), FortiSwitch, and FortiAP.
Design and manage secure connectivity (VPN/Direct Connect) between our physical infrastructure and cloud environments (AWS/Azure)
Manage complex routing protocols (BGP, OSPF) to ensure seamless failover and optimal traffic paths across our SD-WAN fabric.
Implement Zero Trust principles, manage VLAN segmentation, and monitor threats using FortiAnalyzer or similar tools.

Benefits

Substantial incentive stock plan for all full-time employees.
100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
Sponsored memberships for employees and their dependents.
100% top tier plan coverage + 50% for dependents.
100% top tier plan coverage, orthodontia extra, 50% for dependents.
Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
8-weeks of paid parental leave for all parents.
Additional paid pregnancy leave for CA employees.
Daily catered lunch.
Free snacks and drinks.
Flexible PTO policy.
Remote workday allocation.
Company and team-bonding events, happy hours and in-person camaraderie.
Beautiful El Segundo headquarters close to the Pacific Ocean.