Cloud & Network Infrastructure Engineer

Ultahost is global web hosting company with a fully remote team. We’re expanding our infrastructure and preparing to launch a new suite of cloud hosting products for customers worldwide.

We’re looking for a highly skilled, hands-on Cloud & Network Infrastructure Engineer who can confidently operate and scale network, virtualization, storage, and hosting infrastructure across global data centers-and who can solve issues fast, automate aggressively, and contribute new ideas that improve our platform and product offerings.

If you’re a builder-operator who lives at the intersection of networking + virtualization + storage + hosting, this role is for you.

·      Design, deploy, and manage scalable cloud VPS infrastructure across multiple data centers.

·      Build and operate Proxmox clusters (primary platform), ensuring HA, performance, and stability.

·      Work with and/or support additional virtualization and cloud platforms when needed:

·      KVM / QEMU, Proxmox VE, VMware vSphere/ESXi, Microsoft Hyper-V

·      OpenStack, oVirt / RHV, Xen, LXD/LXC, Virtuozzo (bonus)

·      Implement resource planning, capacity forecasting, and performance optimization across virtualization stacks.

·      Develop and improve provisioning pipelines, templates, images, and deployment standards.

·      Install, manage, and optimize Ceph (MON/OSD/MGR/RGW) for high-performance and fault-tolerant storage.

·      Improve storage performance, balancing, replication, recovery, and cluster scalability.

·      Implement backup and snapshot strategies, and ensure storage availability for VPS and cloud services.

·      Configure, monitor, and troubleshoot Juniper switching/routing hardware.

·      Own network performance optimization: routing stability, throughput, latency, packet loss, and capacity planning.

·      Work with routing and HA technologies (BGP/OSPF/VRRP, VLANs, LACP, etc.).

·      Design secure and reliable interconnects between data centers and cloud infrastructure.

·      Configure and manage firewalls, VPNs, access policies, and network security controls.

·      Implement security best practices: segmentation, ACL policies, patching strategy, vulnerability mitigation, and incident response readiness.

·      Work with secure remote access, bastion models, and least-privilege access.

·      Manage production hosting/server environments on:

·      Linux: Ubuntu, Debian, AlmaLinux, Rocky Linux, CentOS (legacy), Red Hat Enterprise Linux (RHEL)

·      Windows Server: 2016 / 2019 / 2022 (IIS/AD is a plus)

·      Maintain and optimize web server stacks and hosting infrastructure:

·      Nginx, Apache, LiteSpeed / OpenLiteSpeed

·      Reverse proxy setups, SSL/TLS, caching, log analysis, performance tuning

·      Bonus exposure: PHP-FPM, MySQL/MariaDB, Redis, HAProxy, Keepalived

·      Monitor infrastructure performance and proactively resolve incidents to minimize downtime.

·      Build alerting and observability (metrics/logs/traces) and improve real-time monitoring workflows.

·      Create and implement disaster recovery plans, failover designs, and redundancy strategies.

·      Participate in on-call/shift operations as required for a global hosting platform.

·      Maintain detailed infrastructure documentation: configurations, diagrams, policies, and runbooks.

·      Collaborate with DevOps, Support, Product, and Leadership teams to ensure reliability, availability, and scalability.

·      Recommend architecture improvements and propose new product/feature ideas for Ultahost’s cloud offerings.

·      5+ years of experience in cloud VPS management, hosting infrastructure, data center operations, or similar roles.

·      Strong, hands-on experience with:

·      Proxmox clusters + KVM/QEMU

·      Ceph storage (deployment, troubleshooting, tuning, scaling)

·      Juniper networking (routing/switching/troubleshooting)

·      Solid expertise across:

·      Virtualization & HA concepts (cluster HA, migration, replication, failover)

·      Networking protocols and technologies (BGP, OSPF, VLAN, VRRP, LACP, etc.)

·      Performance tuning and root-cause analysis under pressure

·      Security fundamentals (firewalls, VPNs, hardening, patch management)

·      Monitoring and incident response best practices

·      Strong English written & verbal communication skills.

·      Comfortable with fast-paced environments, autonomy, and shift/on-call requirements.

·      Bachelor’s degree in a related field (or equivalent experience).

·      Experience with OpenStack, VMware, Hyper-V, oVirt/RHV, Xen, LXD/LXC.

·      Automation experience with Ansible / Terraform / Python / Bash / CI-CD.

·      Kubernetes knowledge (deploying/operating clusters for customers).

·      Hosting billing/provisioning integration experience (WHMCS or custom systems).

·      Background in web hosting or cloud industry (preferred).

·      Strong product mindset: ability to propose and shape new cloud/hosting offerings.