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*

Windows Server (Preferred)

• Windows Server 2016 / 2019 / 2022*Maintain and optimize hosting services including:** Nginx
• Apache

• Reverse Proxy Architectures

• SSL/TLS Management
• Caching Technologies
• Performance Optimization

• Log Analysis & Troubleshooting

• 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.
• Participate in on-call rotations and support operational requirements of a global hosting platform.
• *Documentation & Collaboration** Maintain accurate infrastructure documentation, runbooks, network diagrams, and operational procedures.
• Collaborate closely with Support, Product, Engineering, and Leadership teams.
• Recommend architecture improvements and operational efficiencies.
• Contribute ideas for new infrastructure services, hosting products, and platform enhancements.
• **Required Qualifications*** 5+ years of experience managing hosting infrastructure, virtualization platforms, network operations, or data center environments.
• Strong hands-on experience with:Proxmox, KVM / QEMU, Ceph Storage, Juniper Networking
• Strong understanding of: High Availability architectures, Virtualization technologies Network routing and switching, Storage systems *Linux system administration
• Strong troubleshooting and root cause analysis skills.
• Experience with infrastructure security, hardening, and operational best practices.
• Excellent written and verbal English communication skills.
• Ability to work independently in a fast-paced environment.
• Bachelor’s degree in Computer Science, Information Technology, Engineering, or equivalent practical experience.
• **Nice to Have*** VMware vSphere / ESXi
• Microsoft Hyper-V
• OpenStack
• oVirt / RHV
• Xen

• Lxd / Lxc

• Virtuozzo
• **Automation experience with:*** Ansible
• Terraform
• Python
• Bash
• Kubernetes administration and operations.
• WHMCS or hosting provisioning platform experience.
• Experience working within the hosting, VPS, cloud infrastructure, or data center industry.
• Strong product mindset with the ability to propose and improve infrastructure-based services.