System Administrator - Infrastructure & Operation

Microscan Computers; Mumbai; On-site; INR 600,000 - 1,200,000; Full time

Job summary

Microscan Computers in Mumbai seeks a hands-on System Administrator to operate and improve a network-heavy, service-provider-style infrastructure consisting of Linux/Windows servers, virtualization, monitoring systems, and security controls.

The role requires 3–6 years of experience with strong Linux administration skills and familiarity with SNMP/NMS, plus the ability to collaborate with NOC and security audit teams in a 24/7 environment.

Qualifications

• 6 years of system administration experience in network-heavy or service-provider-style environments.
• Strong Linux administration skills; working knowledge of Windows Server.
• Hands-on experience with NMS platforms using SNMP.

Responsibilities

• Operate and maintain Linux and Windows servers, virtualization platforms, and storage in a high-availability environment.
• Support and operate network-integrated and network-adjacent systems with NOC, L2, and L3 teams.
• Perform capacity planning, performance analysis, and proactive risk identification.
• Coordinate with OEMs and third-party vendors for fault resolution as per SLAs.
• Participate in on-call or after-hours support as part of a 24/7 operations model.

Skills

Linux administration

Windows Server

SNMP/NMS

Tools

SNMP monitoring tools

Job description

Job Summary

We are seeking a hands-on System Administrator to operate and continuously improve a network-heavy, service-provider-style infrastructure comprising servers, virtualization, monitoring systems, and security controls.

Requirements

• Years of Experience: 3-6 years
• Job Type: Full Time
• Location: Mumbai

Responsibilities

• The role requires breadth across technologies, a strong monitoring and observability mindset, and operational support for ISO 27001 / ISO 9001 audits. Prior ISP experience is not mandatory; however, comfort operating systems that are network-adjacent is essential
• Administer and maintain Linux and Windows servers, virtualization platforms, and storage in a high-availability environment
• Support and operate network-integrated and network-adjacent systems in coordination with NOC, L2, and L3 teams
• Perform capacity planning, performance analysis, and proactive risk identification.
• Participate in change planning, risk assessment, and post-change validation for infrastructure modifications.
• Operate and enhance infrastructure monitoring and observability systems
• Work with SNMP-based monitoring, including polling, traps, thresholds, and alert tuning.
• Analyze system and network telemetry (CPU, memory, disk, interface utilization, latency, packet loss)
• Correlate alerts, logs, and performance metrics to identify root causes and reduce repeat incidents
• Identify monitoring blind spots and recommend improvements to increase visibility and resilience
• Support ISO 27001 / ISO 9001 audits through: Operational control execution
• Evidence preparation (logs, backups, access reviews, patch records)
• Remediation of audit findings and non-conformities (NCs)
• Execute and review security scans, antivirus/EDR logs, and patching outcomes.
• Evaluate, test, and improve infrastructure tools (monitoring, logging, backup, asset, patching).
• Build and maintain test or lab environments to evaluate new tools or configurations prior to production rollout.
• Implement scripting and automation to improve reliability, efficiency, and reporting.
• Maintain SOPs, diagrams, and audit-ready documentation.
• Troubleshoot infrastructure issues across server, network, and monitoring layers.
• Coordinate with OEMs and third-party vendors for fault resolution as per agreed SLAs.
• Participate in on-call or after-hours support as part of a 24 7 operations model, as required.

Skills and Qualifications

• 6 years of system administration experience in network-heavy or service-provider-style environments
• Strong Linux administration skills; working knowledge of Windows Server
• Hands-on experience with NMS platforms using SNMP