Senior Network Engineer

About the role

Delart is home to a team of world-class engineers and project leaders dedicated to developing the next generation of advanced networking technologies, consumer devices, and innovative technology solutions. Trusted by some of the world’s leading technology companies, we deliver highly scalable, mission-critical solutions that power both consumer and business applications globally. Since our founding in 2017, we have been at the forefront of designing cutting-edge networking, telecommunications, and consumer products, while driving end-to-end project execution and creating transformative technology applications. Join our team to design, automate, and operate advanced datacenter and hardware validation lab networks supporting global accelerator and HPC cluster projects. You will drive deep L2/L3 network architecture, automation, and operational excellence for environments critical to hardware bring-up, precision timing, and provisioning at scale.

Responsibilities

• Architect, deploy, and maintain complex datacenter and lab fabric networks, focusing on reliability, scalability, security, and proactive cost management through lifecycle decommissioning.
• Design and operate L2/L3 solutions: VLANs, loop prevention, LAG, IPv4/IPv6 planning, SLAAC, DHCP relay/helpers, PXE boot flows, and seamless BGP integrations (including eBGP peering, prefix filtering, uplink preferences, per-rack/site route origination).
• Engineer datacenter fabrics: leaf/spine topologies, EVPN/VXLAN overlays, L2-to-L3 migration, and IPv6-first operations (first-hop security/RA guard, /64 per rack scale, DHCPv6 relay, and MAC-stable configs).
• Manage and optimize timing infrastructure: PTP (IEEE 1588) deployments, grandmaster and clock placement, sync quality, and troubleshooting against strict latency/timing budgets.
• Operate and validate optical/physical plant: fiber/connector types, optical switching, traffic generators, optical signal validation, cable/fiber characterization with hardware timestamping.
• Enforce and enhance access security: port ACLs, 802.1X/MAB, RADIUS, device onboarding, quarantine/remediation VLANs.
• Lead automation and network software: Python for device APIs and operator tooling, Jinja2 templating for reusable config, distributed version control/config as code, CI review gates, app-level intent modeling, and