HashRoot is an ISO 9001:2015 and 27001:2013 certified White Label Managed Service Provider specialized in providing Infrastructure Management Service, Network operations center, Data Analytics, Cloud Managed Services/Deployments, Containerization, IOT Engineering, IT Automation/DevOps and State of Art Security Operations Center around the globe
We are seeking an experienced Linux Technical Lead to oversee and optimize our end-to-end infrastructure covering web hosting platforms, Linux server administration, virtualization environments, data center operations, and cloud technologies.
This role requires deep technical expertise in Linux systems, hosting control panels, networking, virtualization (KVM/Proxmox/VMware), cloud services, and infrastructure automation.
You will lead a team of system administrators and support engineers, drive infrastructure modernization, ensure high reliability of hosting and DC operations, and contribute to strategic long-term planning.
Key Responsibilities
1. Technical Leadership & Strategy
Lead architecture design, implementation, and optimization of hosting and DC server infrastructure.
Define technical roadmaps, best practices, and modernization plans.
Evaluate new tools, hosting technologies, virtualization stacks, and cloud solutions.
Drive continuous improvement in performance, security, and scalability.
2. Linux Server & Hosting Administration
Manage end-to-end Linux server operations (CentOS, Ubuntu, Debian, RHEL, AlmaLinux, Fedora).
Oversee provisioning, configuration, upgrades, system hardening, and automation.
Administer hosting control panels: cPanel/WHM, Plesk, DirectAdmin, custom panels.
Maintain and optimize core hosting services:
Apache/Nginx
MySQL/MariaDB
PHP/PHP-FPM
DNS, Email servers
FTP, SSL, Firewall
Manage virtualization environments (KVM, Proxmox, VMware) and containerization (LXC, Docker).
3. Data Center Operations
Oversee physical and virtual DC infrastructure health and uptime.
Coordinate with onsite technicians for hardware replacements, cabling, and diagnostics.
Perform hardware troubleshooting (RAID, disks, NICs, memory, power issues).
Work with remote management tools such as iLO, iDRAC, IPMI.
Maintain DC documentation, DR plans, and escalation procedures.
4. Networking & CDN Management
Configure and troubleshoot networking fundamentals:
TCP/IP, DHCP, DNS, NAT, VLANs, VPNs
Routing, subnetting, load balancing
Firewalls (iptables, nftables, firewalld, ufw)
Manage CDN integrations and DNS-level configurations for performance optimization.
Perform deep-dive network diagnostics (tcpdump, netstat, ss, traceroute, nmap).
5. Cloud, Automation & DevOps
Lead cloud deployments and migrations (AWS, Azure, GCP, or private cloud).
Build & maintain automation via Ansible, Terraform, Bash/Python scripting.
Develop CI/CD pipelines for infrastructure updates and deployments.
Implement configuration management and version-controlled workflows (Git).
6. Security, Compliance & Monitoring
Implement and enforce advanced server security best practices.
Manage firewalls, intrusion detection, vulnerability scans, patch cycles.
Conduct audits, logs review, and incident response procedures.
Maintain compliance with standards like ISO, GDPR, PCI-DSS.
Use monitoring tools: Zabbix, Nagios, Prometheus, Grafana to track uptime, performance, and alerts.
7. Troubleshooting & Performance Optimization
Diagnose complex OS, network, application, and hosting issues.
Perform OS-level troubleshooting (systemd issues, boot problems, log analysis).
Manage resource optimizations—CPU, RAM, disk I/O, caching layers.
Lead disaster recovery, failover, and business continuity planning.
8. Team Leadership & Cross-Functional Coordination
Lead and mentor system administrators, help desk engineers, and support teams.
Provide training on Linux, hosting platforms, virtualization, and security.
Serve as the highest-level technical escalation point for critical issues.
Collaborate with development, support, and product teams to align infrastructure with business requirements.
Maintain clear reporting for senior management.
Required Qualifications
10+ years of experience in Linux server administration and hosting/DC infrastructure.
Expert-level knowledge of CentOS, Ubuntu, RHEL, Debian, AlmaLinux, and other distributions.
Strong expertise with hosting panels: cPanel, Plesk, DirectAdmin.
Hands-on experience with virtualization tools (Proxmox, VMware, KVM, LXC).
Strong networking fundamentals (TCP/IP, routing, DNS, firewalling).
Experience managing cloud platforms and automation tools (Ansible, Terraform).
Deep understanding of security principles and server hardening.
Proven leadership experience managing technical teams.
Excellent troubleshooting, analytical, and communication skills.
Preferred Qualifications
Certifications: RHCE, RHCSA, AWS Solutions Architect, LPIC, VMware VCP.
Experience with CI/CD pipelines and DevOps practices.
Knowledge of caching servers (Redis, Memcached), DB optimization, CDN integrations.
Experience in SLA-driven or enterprise hosting environments.
Linux Server Administration, Web Hosting Management, Infrastructure Architecture, Virtualization (KVM, Proxmox, VMware), Data Center Operations, Cloud Services (AWS, Azure, GCP), Hosting Control Panels (CPanel, Plesk, DirectAdmin), Networking (TCP/IP, DNS, DHCP, VLANs, VPNs), Load Balancing, Firewalls (Iptables, Nftables, Firewalld, Ufw), CDN Management, Automation (Ansible, Terraform), Scripting (Bash, Python), CI/CD Pipelines, Configuration Management (Git), Security Hardening, Vulnerability Management, Monitoring Tools (Zabbix, Nagios, Prometheus, Grafana), Troubleshooting, Performance Optimization, Disaster Recovery, Team Leadership, Technical Mentoring, Cross-Functional Collaboration