Infrastructure Engineer (WAN)

Fluidstack is the AI Cloud Platform. We build GPU supercomputers for top AI labs, governments, and enterprises. Our customers include Mistral, Poolside, Black Forest Labs, Meta, and more.

Our team is small, highly motivated, and focused on providing a world class supercomputing experience. We put our customers first in everything we do, working hard to not just win the sale, but to win repeated business and customer referrals.

We hold ourselves and each other to high standards. We expect you to care deeply about the work you do, the products you build, and the experience our customers have in every interaction with us.

You must work hard, take ownership from inception to delivery, and approach every problem with an open mind and a positive attitude. We value effectiveness, competence, and a growth mindset.

We are looking for a WAN Infrastructure Engineer to architect and operate the global network backbone connecting Fluidstack’s data centers and GPU clusters. You will be responsible for designing high-performance, secure, and reliable wide-area networks (WANs) to support data movement across regions. You will work closely with our compute, storage, and facility teams to ensure seamless, low-latency connectivity across our infrastructure footprint.

• Architect, implement, and maintain high-throughput, low-latency WAN links across data center sites.

• Select and manage vendor relationships for transport and dark fiber across regional and international circuits.

• Monitor and optimize interconnect performance, including routing, packet loss, and bandwidth usage.

• Ensure security and isolation of network traffic across multi-tenant GPU workloads.

• Automate configuration, provisioning, and monitoring of WAN infrastructure.

• Deploy and maintain site-to-site VPNs, private peering, and direct connects with hyperscalers.

• Troubleshoot complex network issues.

• Implement best practices for redundancy, failover, and disaster recovery.

• Collaborate with infrastructure engineering, SREs, and software teams.

• Support future growth by contributing to global network expansion plans.

• 7+ years of experience in network infrastructure engineering with a focus on WAN design and operations.

• Deep understanding of network routing protocols (BGP, OSPF), MPLS, and IPsec VPNs.

• Proven experience with fiber, transport circuits, and carrier peering arrangements.

• Strong knowledge of Linux networking and systems administration.

• Experience with infrastructure automation (e.g., Ansible, Terraform, NetBox).

• Familiarity with monitoring and telemetry tools (e.g., Grafana, Prometheus, ELK, or custom tooling).

• Ability to manage projects across multiple sites and time zones.

• Excellent written and verbal communication skills.

• Competitive total compensation package (salary + equity).

• Retirement or pension plan, in line with local norms.

• Health, dental, and vision insurance.

• Generous PTO policy, in line with local norms.

• Fluidstack is remote first, but has offices in key hubs. For all other locations, we provide access to WeWork.