Infrastructure Engineer, Networking

October 13

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NexGen Cloud

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Artificial Intelligence • SaaS • B2B

NexGen Cloud is a provider of large-scale, sovereign and sustainable AI cloud infrastructure and GPU-as-a-service. It offers the AI Supercloud and Hyperstack platforms with on-demand NVIDIA HGX/H100/GB200 GPUs, managed Kubernetes, custom hardware/software configurations, and consulting and R&D partnerships through NexGen Labs to support enterprise training of foundational models and GenAI workloads. The company focuses on scalable, hybrid and sovereign deployments in Europe and North America and provides POCs, onboarding, and ongoing support.

51 - 200 employees

Founded 2020

🤖 Artificial Intelligence

☁️ SaaS

🤝 B2B

📋 Description

• Provision and manage Linux systems (Ubuntu-based) supporting GPU servers and backend services. • Maintain system availability, conduct root cause analysis, and implement failover strategies. • Design and manage high-speed, low-latency network infrastructure across data center environments. • Configure firewalls, BGP, VLANs, VXLANs, and VPNs to support secure and scalable multi-tenant networking. • Resolve network-related incidents impacting workloads or customer environments. • Build infrastructure-as-code with tools like Ansible for repeatable, scalable deployments. • Automate GPU driver installs, system bootstrapping, and fleet-wide patching. • Develop CI/CD workflows for infrastructure updates and configuration validation. • Support containerized workloads via Kubernetes or custom orchestration systems. • Work with both bare-metal and virtualized GPU platforms using KVM or OpenStack-based environments. • Integrate with public cloud APIs or hybrid infrastructure as needed. • Deploy and manage monitoring stacks (e.g., Prometheus, Grafana, ELK) to track system health and capacity. • Implement hardening practices, access controls, and audit trails for infrastructure components. • Support incident response and security investigations related to infrastructure.

🎯 Requirements

• 3–5 years of experience in Linux systems administration or infrastructure engineering. • Strong networking knowledge: routing, switching, TCP/IP, DNS, DHCP, VLANs, BGP, VPN. • Proficiency with scripting languages (Bash, Python) and automation tools (Ansible, Terraform). • Hands-on experience with virtualization, containerization, and systems troubleshooting. • Familiarity with monitoring and logging systems in a production environment. • Strong focus on keeping good documentation. • Knowledge of IB, BluField NIC, UFM, Openvswitch, software defined network or similar. • Good to have: Prior experience at a GPU cloud provider, HPC environment, or similar high-performance setting. • Good to have: Exposure to NVIDIA GPU technologies and tooling (e.g., Nvidia GPU operator, CUDA toolkit, DCGM). • Good to have: Experience with software-defined networking (SDN, OVS/OVN) and overlay networks (VXLAN, Calico). • Good to have: Experience with networking products from Arista, Cisco, Mikrotik and Nvidia/Mellanox. • Good to have: Familiarity with OpenStack private cloud environments. • Good to have: Familiarity with CMDB tools like Netbox. • Good to have: Experience with working with Internet Registries (RIPE, AURIN). • Good to have: Knowledge of server provisioning via PXE/iPXE and out-of-band management tools (IPMI, Redfish).

🏖️ Benefits

• Competitive salary. • 100% home-office, working in US hours with some flexibility (Remote and based in: Spain / UK / Bulgaria / Albania / Portugal / Poland) • Full-time permanent contract. • Opportunity to work with a diverse team of talented professionals who are passionate about technology and innovation. • A collaborative and supportive work environment that encourages professional growth and development. • Exposure to cutting-edge technologies and the opportunity to make a significant impact on the future of cloud computing. • Possibility to participate on international events.