Systems & Network Administrator (On-Premise & Colocation)

Overview

Job Summary

We’re looking for an experienced Systems & Network Administrator to architect, deploy, and maintain our in-house and colocation data-center infrastructure. You will be responsible for end-to-end management of physical servers (Vultr/AWS integration as needed), DNS, networking, virtualization, storage, security, and high-availability solutions that power our client applications.

Key Responsibilities

• Infrastructure Deployment & Management
• Provision and configure physical and virtual servers (bare-metal, Hyper-V/VMware/Proxmox, KVM) in-house and at our Ctrl S colocation facility.
• Integrate on-premise servers with public-cloud instances (Vultr, AWS) for hybrid-cloud workloads.
• Networking & DNS
• Design and maintain LAN/WAN topology, VLANs, routing, and firewall policies.
• Configure, troubleshoot, and document DNS zones (Windows DNS, Cloudflare, Bind9, etc.), reverse lookups, and SSL/TLS certificates.
• Performance, Monitoring & Capacity Planning
• Deploy and tune monitoring stacks (Prometheus/Grafana, Zabbix, Nagios) to track server health, resource utilization, and application performance.
• Analyze growth trends, plan hardware refreshes, and optimize resource allocation for cost efficiency.
• Security & Compliance
• Implement OS-level hardening, patch management, intrusion detection (OSSEC, Snort), and backup/recovery strategies.
• Enforce access controls, VPN configurations, and incident response procedures.
• Automation & Scripting
• Develop and maintain automation scripts (Bash, PowerShell, Python) for configuration management, deployments, and routine maintenance tasks.
• Leverage tools like Ansible, Puppet, or Terraform to codify infrastructure.
• Backup & Disaster Recovery
• Architect and test backup solutions (Veeam, Bacula, or native filesystem snapshots) and define RTO/RPO targets.
• Execute DR drills and refine procedures.
• Documentation & Support
• Produce clear runbooks, network diagrams, and configuration documents.
• Provide 24×7 on-call support and collaborate with development teams to troubleshoot infrastructure-related issues.

Required Qualifications & Skills

• Experience:
• 3–5 years in systems/network administration, with hands-on in-house and colocation environments.
• Technical Skills:
• Operating Systems: Linux distributions (Ubuntu, CentOS, RHEL) and Windows Server.
• Virtualization: Hyper-V, VMware ESXi, Proxmox, KVM.
• Networking: TCP/IP, DHCP, BGP/OSPF, VLANs, switches (Cisco/Juniper), firewalls (pfSense, FortiGate).
• DNS & Load Balancing: Bind9, Windows DNS, HAProxy, Nginx, F5.
• Cloud Integration: Basic AWS/Vultr instance management and networking.
• Monitoring & Logging: Prometheus, Grafana, Zabbix, ELK stack.
• Automation: Ansible, Terraform, Bash/Python scripting.
• Backup & DR: Veeam, Bacula, rsync, snapshots.
• Soft Skills:
• Strong problem-solving and troubleshooting aptitude.
• Excellent communication and documentation abilities.
• Ability to work independently and as part of a distributed team.

Preferred / Nice-to-Have

• Certifications: RHCE, CCNA/CCNP, AWS Certified SysOps Administrator.
• Experience with container orchestration (Docker, Kubernetes).
• Familiarity with security standards (ISO 27001, SOC 2).
• Knowledge of database administration (MySQL/MariaDB, PostgreSQL).

Reporting & Collaboration

• Reports to: CTO / Head of Infrastructure
• Collaborates closely with: DevOps, Software Engineering, Security, and Project Management teams

What We Offer

• Competitive compensation and benefits
• Opportunity to architect hybrid-cloud solutions and grow into infrastructure leadership roles
• Hands-on experience with cutting-edge technologies in both on-premise and cloud environments

Job Types: Full-time, Permanent, Fresher

Pay: ₹350,000.00 - ₹450,000.00 per year

Schedule:

• Day shift
• Fixed shift

Ability to commute/relocate:

• Madhapur, Hyderabad, Telangana: Reliably commute or planning to relocate before starting work (Preferred)

Education:

• Bachelor's (Preferred)

Work Location: In person