Design, build, and optimize high-performance network infrastructure for AI/ML operations, manage network components, and troubleshoot issues.
About The Role
We're seeking an experienced Network Engineer to design, build, and optimize the high-performance networking infrastructure powering our AI/ML operations in Toronto. You'll work at the cutting edge of network technology—managing InfiniBand and ultra-high-speed Ethernet fabrics that connect NVIDIA H100 and A100 GPUs, over 20PB of Ceph storage, and hundreds of servers.
You'll be hands-on with the full lifecycle of our network infrastructure: planning, building, testing, deploying, and keeping everything running at peak performance. That means troubleshooting issues as they arise, monitoring network performance and throughput, developing automation to streamline operations, and working closely with HPC and ML teams to ensure they have the bandwidth they need. You'll also help us plan for future capacity and evaluate emerging network technologies as we scale to meet increasingly demanding workloads.
Responsibilities
- Configure and maintain InfiniBand and high-speed Ethernet fabrics
- Optimize network performance for RDMA, and GPU-to-GPU communication
- Manage network switches (Mellanox, NVIDIA, Micas Networks)
- Troubleshoot network bottlenecks and latency issues
- Plan and execute network upgrades and expansions
- Network security implementation (firewalls, VLANs, ACLs)
- Collaborate on storage network optimizationInfrastructure monitoring
Minimum Qualifications
- 4+ years of network engineering experience in production environments
- Strong understanding of L2/L3 networking protocols (TCP/IP, BGP, OSPF, VLANs)
- Hands-on experience with high-speed networking (100Gb+ Ethernet and InfiniBand)
- Hands-on experience with network security (firewalls, ACLs, network segmentation)
- Knowledge of HPC network topologies
- Experience with InfiniBand fabrics including RDMA, RoCE, IPoIB
- Strong troubleshooting and problem-solving skills
Preferred Qualifications
- Experience in data center environments or AI/ML infrastructure
- Hands-on experience with high-performance Ethernet switches (e.g., Broadcom Tomahawk), and latest InfiniBand switches (e.g., Nvidia/Mellanox)
- Experience optimizing networks for GPU-to-GPU communication
- Experience with open-source firewall solutions (OPNsense, pfSense, or similar)
- Experience with network automation tools
- Understanding of distributed storage networking (Ceph cluster networks)
- Familiarity with network monitoring and observability tools (Prometheus, Grafana)
- Knowledge of multi-site network connectivity and WAN optimization
- Familiarity with cloud networking in at least one platform (AWS, GCP, or Azure) including VPC design, site-to-site VPN configuration, Direct Connect/ExpressRoute/Cloud Interconnect, hybrid cloud connectivity, and cloud-to-datacenter network integration
If you're a natural problem-solver with a passion for continuous learning, we'd love to hear from you.
Top Skills
AWS
Azure
Bgp
Ceph
Ethernet
GCP
Grafana
Infiniband
Ipoib
Ospf
Prometheus
Rdma
Roce
Tcp/Ip
Vlans
Similar Jobs
Cloud • Greentech • Social Impact • Software • Consulting
Own a portfolio of enterprise customers to drive expansion bookings by identifying whitespace, leading strategic multi-stakeholder deals, coordinating internal teams, maintaining account plans and forecasts, and engaging executives (10-20% travel).
Top Skills:
Salesforce,Outreach,Gong,G2,Zoominfo,6Sense,Linkedin Sales Navigator,Meddpicc,Richardson,Challenger,Spin
Cloud • Greentech • Social Impact • Software • Consulting
Lead expansion sales within a portfolio of mid-market customers, uncovering whitespace to sell additional products, building multi-threaded relationships, coordinating with Customer Success, maintaining account plans and a 3× pipeline, and forecasting using MEDDPICC and sales tools to hit expansion quotas.
Top Skills:
Salesforce,6Sense,Zoominfo,Outreach,Gong,G2,Linkedin Sales Navigator
Cloud • Greentech • Social Impact • Software • Consulting
Own full-cycle new-business sales in the Mid-Market/SMB segment: generate pipeline through outbound prospecting, run consultative MEDDPICC-driven processes, deliver demos and proposals, close new logos, and collaborate with SDRs, Solutions Consultants, and Marketing to accelerate deal velocity and meet quota.
Top Skills:
Zoominfo,6Sense,Linkedin Sales Navigator,Salesforce,Outreach,Gong,G2
What you need to know about the Ottawa Tech Scene
The capital city of Canada and the nation's fourth-largest urban area, Ottawa has proven a rapidly growing global tech hub. With over 1,800 tech companies, many of which are leaders in their sectors, the city's tech talent now makes up more than 13 percent of its total workforce. This growth is driven not only by the big players like UL Solutions and Dropbox, but also by a thriving startup ecosystem, as new businesses emerge to follow in the footsteps of those that came before them.
