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About the Role
This individual contributor role operates with high autonomy, owning network projects from conception through delivery. The role owns the design, operation, and optimization of Cirrascale's SD-WAN, multi-homed internet edge, and cloud interconnect infrastructure, ensuring SLA-backed connectivity across data centers, cloud, and customer environments. You will work with the VP of Engineering to align network initiatives with infrastructure and platform strategy. You will partner cross-functionally to deliver secure, scalable, and high-performance network systems, including the InfiniBand fabrics that support our AI and HPC workloads.
Responsibilities
- Own and operate the company’s internet edge architecture, including ASN management, upstream provider relationships, peering strategy, and global routing policy.
- Design, configure, and maintain SD-WAN, LAN, WAN, VPN, firewall, and switching/routing environments.
- Deploy and support InfiniBand fabrics for GPU cluster infrastructure.
- Implement network telemetry and BGP monitoring systems to proactively detect routing anomalies, traffic shifts, and DDoS conditions.
- Monitor network performance and troubleshoot issues to ensure reliability and uptime.
- Lead incident response for network edge events and author postmortems with actionable remediation plans.
- Support the buildout of new infrastructure within our GPU cloud platform.
- Collaborate with Engineering and Platform teams to align networking with infrastructure needs.
- Manage network documentation including topologies, IP allocations, and configurations.
- Evaluate and recommend new tools, technologies, and network optimizations.
- Assist in data center migrations and bringups, hardware upgrades, and capacity planning.
- Maintain compliance with internal and external security and performance standards.
Requirements
- Designed, operated, and scaled resilient multi-homed internet edge architectures supporting >10Gbps sustained throughput, including routing policy design, peering strategy (IXPs), inbound/outbound traffic engineering, validated failover procedures to meet SLA-backed uptime targets, and advanced eBGP policy implementation (route filtering, community manipulation, local-pref/MED tuning, AS-path prepending).
- Built high-availability edge designs utilizing redundant firewalls (active/passive or active/active), state synchronization, load balancing, and fast failure detection mechanisms (e.g., BFD).
- Experience implementing DDoS mitigation strategies, RTBH, or integration with scrubbing providers is strongly preferred.
- Experience designing and operating hybrid cloud interconnects and customer connectivity solutions including private interconnects, cross-connects, and IPsec/GRE tunnels.
- 7+ years of experience in network engineering or related infrastructure roles.
- Strong knowledge of TCP/IP, BGP, OSPF, ECMP, VLANs, and other Layer 2/3 technologies.
- Hands-on experience with enterprise switches, routers, and firewalls (e.g., Cisco, Arista, SONiC, Fortinet).
- Experience with network monitoring tools (e.g., Nagios, Zabbix, Prometheus/Grafana, etc.).
- Demonstrated experience automating network configuration, validation, and change management using Ansible, Python, or similar tools in production environments.
- Understanding of cloud and virtualization concepts (OpenStack, VMware, k8s, etc.).
- Strong documentation and communication skills.
- Ability to participate in an on-call rotation and occasional after-hours support.
Skills
- SD-WAN
- Multi-homed internet edge
- Cloud interconnect infrastructure
- InfiniBand fabrics
- ASN management
- Upstream provider relationships
- Peering strategy
- Global routing policy
- LAN
- WAN
- VPN
- Firewall
- Switching/routing
- Network telemetry
- BGP monitoring
- DDoS mitigation
- RTBH
- Hybrid cloud interconnects
- IPsec/GRE tunnels
- TCP/IP
- BGP
- OSPF
- ECMP
- VLANs
- Layer 2/3 technologies
- Cisco
- Arista
- SONiC
- Fortinet
- Nagios
- Zabbix
- Prometheus/Grafana
- Ansible
- Python
- OpenStack
- VMware
- k8s
- HPC
- Data center networking
- CCNA
- CCNP
Experience Level
- 7+ years of experience in network engineering or related infrastructure roles.
- Senior engineer
Education Level
- CCNA, CCNP, or equivalent experience.
Salary/Compensations
- $125,000 to $180,000
Benefits
- Comprehensive benefits package, including health, dental, and vision insurance, retirement plans, paid time off, and opportunities for professional development.
About the Company
- Join a growing team that's pushing the boundaries of AI infrastructure. At Cirrascale, you’ll contribute to projects powering next-generation AI applications while working with top-tier hardware in a collaborative and innovative environment. From custom deployments to hands-on customer support, every role here plays a part in enabling breakthroughs in AI.