Information Technology Infrastructure Consultant

Job Title:
IT Infrastructure Consultant (On-Premises Infrastructure)

Location:
Kolkata, West Bengal, India

Job Type:
Full-time

Experience:
5+ years

Start Date:
Immediate Joiners Preferred

Objective:

To ensure the
high availability, security, and performance
of the on-premises IT infrastructure, which includes
firewalls, network switches, servers, hypervisors, and virtual machines
.

Scope of Work:

The selected candidate will be responsible for
managing, maintaining, and supporting
the following systems:

1. Hardware & Network Infrastructure
Fortinet Firewall

• Configure firewall rules, manage firmware updates.
• Configure and maintain VPN and secure remote access.
• Monitor traffic and respond to intrusion detection alerts.

Cisco CBS 350 Switch

• Configure VLANs, ports, and link aggregation.
• Perform firmware updates and monitor physical port health.

HP DL380 Server

• Monitor physical hardware (RAID status, power, ILO access).
• Perform firmware and BIOS updates.
• Conduct preventive checks to avoid hardware failures.

2. Virtualization & Compute
VMware ESXi & vSphere

• Patch ESXi hosts and manage licenses.
• Monitor clusters and datastores.
• Optimize resource allocation and performance.

Windows & Linux VMs

• Perform OS-level patching and updates.
• Monitor system health, logs, and performance.
• Manage user access and implement secure remote login.

3. Additional Responsibilities
Root Cause Analysis (RCA)

• Conduct detailed RCA for any infrastructure-related issues.
• Submit RCA reports within 48 hours post-resolution.
• Maintain issue logs with symptoms, root cause, short-term fixes, and long-term solutions.

Disaster Recovery (DR)

• Implement, maintain, and test DR procedures for firewalls, ESXi hosts, and critical VMs.
• Ensure onsite and offsite backups are performed and monitored regularly.
• Conduct quarterly DR simulations and submit detailed reports.
• Restore systems and data within defined RTO and RPO metrics.

4. Deliverables

• Weekly Reports
  : System health, firewall logs, VM performance, patch status.
• Monthly Reports
  : RCA summaries and issue logs (if applicable).
• Quarterly Reports
  : DR simulation results and updated recovery procedures.
• Backup Reports
  : Weekly backup status and configuration snapshots.

5. Working Hours & Availability

• Critical Issue Support
  : On-call support for Priority-1 issues (24/7 if required)
• Remote Access
  : Provided through secure VPN or bastion host.

6. Tools & Access

• Access to ILO, vSphere, firewall, and network switch consoles.
• Secure credential handling and access logging will be enforced for traceability.

7. Key Performance Indicators (KPIs)

• 99%+ system uptime.
• Response to critical incidents within 1 hour.
• RCA reports delivered within 48 hours post-resolution.
• 100% success in quarterly DR test simulations.
• Weekly backup integrity checks with 100% pass rate.

Confidentiality & Compliance

• NDA to be signed prior to project initiation.
• Strict adherence to industry best practices for password and configuration management.
• Sensitive data to be handled with the highest level of confidentiality.

Qualifications & Skills Required

• Proven experience with
  Fortinet firewalls, Cisco switches, HP DL380 servers, VMware ESXi, and vSphere
  .
• Strong knowledge of
  Windows and Linux server environments
  .
• Experience in
  disaster recovery planning and testing
  .
• Analytical and problem-solving skills for
  root cause analysis
  .
• Familiarity with
  ITIL or other incident management processes
  is a plus.
• Excellent communication and documentation skills.

If you are passionate about ensuring IT infrastructure is resilient, secure, and highly available — and you meet the above qualifications — we encourage you to apply.