Network & System Engineer

Zoho; Delhi; On-site; INR 600,000 - 1,000,000; Full time

Job summary

SecNinjaz in India (Delhi) seeks a Network & System Engineer to design, deploy, configure, monitor, troubleshoot, and maintain enterprise network and IT infrastructure for our clients, with hands-on experience in networking, Linux/Windows, virtualization, firewalls, routers, switches, and SAN.

The ideal candidate works in client environments, handles deployments, resolves issues, and ensures high availability and performance. CCNA is required; Fortinet, VMware, and Proxmox skills are a plus.

Qualifications

• Design, deploy, configure, monitor, troubleshoot, and maintain enterprise network infrastructure.
• Hands-on experience with Cisco, Fortinet devices, routers, switches, and network security.
• Configure LAN/WAN, VLANs, routing, switching, VPN, NAT, DHCP, DNS, and basic network security.

Responsibilities

• Design, configure, deploy, and maintain enterprise network infrastructure.
• Hands-on experience with Cisco, Fortinet, and other routers, switches, and network security devices.
• Configure security policies, NAT, VPN, access controls, and related firewall services.

Skills

Network troubleshooting

Client handling

Documentation

Team collaboration

Education

CCNA certification

Tools

Cisco

Fortinet

VMware virtualization

Proxmox VE

Job description

SecNinjaz is renowned for providing world-class IT services and cybersecurity solutions globally. Founded in 2018, SecNinjaz has evolved into a leadingcybersecurity force, combining the agility and innovation of a startup with the expertise and depth of seasoned professionals.

We serve clients across various industries, including Healthcare, Fintech, Manufacturing, Telecom, Infrastructure, and e-commerce. Our solutions are always customised, future-ready, and designed to blend technical excellence, innovation,and a deep commitment to protecting the digital world.

Job Description

Job Description – Network & System Engineer

Position

Job Summary

We are looking for a skilled Network & System Engineer responsible for designing, deploying, configuring, monitoring,troubleshooting, and maintaining network and IT infrastructure forour infra and clients. The candidate should have hands-on experiencewith networking, Linux/Windows systems, virtualization platforms,firewalls, routers, switches, SAN infrastructure, hardware, and ITsupport.

The ideal candidate should be comfortable working in clientenvironments, handling infrastructure deployments, resolvingtechnical issues, and ensuring high availability and performance ofIT infrastructure.

Key Responsibilities

Network Infrastructure

Design, configure, deploy, andmaintain enterprise network infrastructure.

Hands-on experience with Cisco,Fortinet, and other routers, switches, and network security devices.

Configure and troubleshoot LAN/WAN, VLANs, routing, switching, VPN, NAT, DHCP, DNS, andbasic network security.

Understand and prepare networktopology and infrastructure diagrams.

Perform network troubleshooting,performance analysis, and issue resolution.

Experience with SANswitches and storage/network connectivity.

Implement and maintain networkinfrastructure at our and client locations.

Coordinate with vendors and clients for network deployment,troubleshooting, and support.

Firewall & Security

Hands-on experience withdeployment, configuration, and troubleshooting of Fortinetfirewalls.

Working knowledge of Fortinet, Cisco and other firewall/security solutions.

Configure security policies, NAT,VPN, access controls, and related firewall services.

Monitor security and network events and troubleshootconnectivity/security issues.

Hands-on experience with Linuxserver installation, configuration, administration, andtroubleshooting.

Troubleshoot Linux OS, services,networking, storage, permissions, logs, and performance-relatedissues.

Working knowledge of Windowsand basic system administration.

Experience with system deployment,patching, backup, and maintenance activities.

Good understanding of server hardware and associatedcomponents.

Hands‑on experience with VMwarevirtualization technologies.

Experience with Proxmox VE for virtualization and virtual machine management.

Deployment, configuration,migration, monitoring, and troubleshooting of virtual machines.

Understanding of virtual networking, storage, resourceallocation, and high availability concepts.

IT Infrastructure & Support

Provide L1/L2/L3 technicalsupport for network and system infrastructure, as required.

Troubleshoot desktops, laptops,servers, networking equipment, printers, and other IT hardware.

Knowledge of server,desktop, laptop, storage, and networking hardware.

Install, configure, maintain, andtroubleshoot IT infrastructure at client locations.

Maintain proper documentation ofinfrastructure, configurations, incidents, and changes.

Participate in infrastructure deployment, upgrades,migration, and maintenance activities.

Monitoring & Maintenance

Experience with networkand server monitoring tools/software.

Monitor availability, performance,CPU, memory, storage, bandwidth, and network devices.

Proactively identify and resolveinfrastructure issues before they impact clients.

Generate and maintain monitoringreports and infrastructure health reports.

Perform regular preventive maintenance and health checks.

Certification

CCNA certification isrequired.

Additional certifications in Fortinet, VMware, Linux,or other relevant technologies will be an advantage.

Experience

2–5 years of relevantexperience in Network/System Administration or ITInfrastructure.

Candidates with hands-on experience in clientinfrastructure deployment and support will be preferred.

Strong troubleshooting andproblem-solving skills.

Good communication andclient-handling skills.

Ability to work independently andas part of an infrastructure team.

Willingness to travel to clientsites when required.

Ability to work under pressure andhandle critical infrastructure issues.

Good documentation and reportingskills.

Strong focus on service quality, uptime, and customersatisfaction.