Senior Network & Infrastructure Engineer

About UltaHost: Ultahost is a rapidly growing global web hosting and infrastructure provider, delivering high-performance hosting solutions including Dedicated Servers, VPS Hosting, Cloud Infrastructure, and Managed Hosting services. As our infrastructure continues to scale, we are looking for a Dedicated Hosting Operations Specialist to help manage the procurement, provisioning, and operational management of dedicated server hardware across our global data center network. Job Overview Ultahost is seeking a highly skilled, hands-on Senior Network & Infrastructure Engineer to design, operate, optimize, and scale our global hosting, virtualization, storage, and network infrastructure across multiple data centers. This role is ideal for an experienced infrastructure professional who combines strong networking expertise with deep knowledge of virtualization platforms, storage systems, Linux administration, and hosting environments. You will play a key role in maintaining platform reliability, improving performance, driving automation, and helping shape the future of Ultahost’s infrastructure services Key Responsibilities*Infrastructure & Virtualization** Design, deploy, and manage large-scale VPS and hosting infrastructure across multiple global data centers.

• Build, maintain, and optimize Proxmox VE clusters to ensure high availability, performance, and stability.
• Manage and support virtualization technologies including: Proxmox VE, KVM / QEMU, VMware vSphere / ESXi, yper-V
• Develop infrastructure standards, templates, deployment workflows, and provisioning processes.
• Perform capacity planning, resource forecasting, and infrastructure optimization.
• Implement and maintain high-availability, failover, replication, and disaster recovery strategies.

Storage & Ceph* Deploy, manage, and optimize Ceph storage clusters (MON, OSD, MGR, RGW).

• Improve cluster performance, balancing, replication, recovery, and scalability.
• Design backup, snapshot, and disaster recovery solutions.
• Ensure storage availability and reliability for production VPS and hosting services.
• Troubleshoot and resolve storage-related incidents and performance bottlenecks.

Network Engineering* Configure, manage, and troubleshoot Juniper routing and switching infrastructure.

• Maintain and optimize network performance, throughput, routing stability, and capacity utilization.
• Work with: BGP, OSPF, VRRP, VLANs, LACP
• High Availability networking technologies
• Design secure and resilient interconnectivity between data centers.
• Analyze network performance and proactively address latency, packet loss, and routing issues.

Security & Infrastructure Hardening* Configure and maintain firewalls, VPNs, ACLs, and access control policies.

• Implement infrastructure security best practices and hardening standards.
• Manage patching strategies and vulnerability remediation processes.
• Support incident response readiness and security improvement initiatives.
• Implement secure remote access and least-privilege operational models.

Linux & Hosting Infrastructure Manage and optimize production environments running: Linux Platforms like Ubuntu, Debian, AlmaLinux, Rocky Linux, Red Hat Enterprise Linux (RHEL) Windows Server (Preferred) Windows Server 2016 / 2019 / 2022*Maintain and optimize hosting services including:** Nginx

• Apache
• LiteSpeed / OpenLiteSpeed
• Reverse Proxy Architectures
• SSL/TLS Management
• Caching Technologies
• Performance Optimization
• Log Analysis & Troubleshooting

Additional experience with the following is beneficial:* PHP-FPM

• MariaDB / MySQL
• Redis
• HAProxy
• Keepalived

Monitoring, Reliability & Operations* Monitor infrastructure health and proactively prevent service disruptions.

• Improve observability through metrics, logging, alerting, and monitoring systems.
• Lead troubleshooting efforts during incidents and outages.
• Develop redundancy, failover, and disaster recovery strategies.
• Partici