Network and System Engineer

SecNinjaz Technologies LLP; New Delhi; On-site; INR 600,000 - 1,200,000; Full time

Job summary

SecNinjaz Technologies LLP is seeking a skilled Network & System Engineer to design, deploy, configure, monitor, troubleshoot, and maintain network and IT infrastructure for in-house and client environments.

The role requires hands-on experience with networking, Linux/Windows systems, virtualization, firewalls, routers, switches, SAN infrastructure, and hardware. Travel to client sites may be required.

Qualifications

• CCNA certification is required.
• 2–5 years of relevant network/system IT infrastructure experience.
• Experience deploying and supporting client infrastructure.
• Hands-on with Linux/Windows servers and virtualization.
• Knowledge of LAN/WAN, VLANs, VPN, NAT, DNS, DHCP.
• Strong troubleshooting, documentation, and client-handling skills.

Responsibilities

• Design, configure, deploy, and maintain enterprise network infrastructure.
• Configure security devices: Fortinet, Cisco, and others.
• Manage LAN/WAN, VPN, NAT, DNS, DHCP, and basic network security.
• Prepare network topology and infrastructure diagrams.
• Monitor network performance and troubleshoot issues.
• Coordinate with vendors and clients for deployment and support.
• Provide L1/L2/L3 technical support for network and systems.
• Monitor security events and ensure high availability.

Skills

Networking troubleshooting

Client communication

Team collaboration

Technical documentation

Problem solving

Willingness to travel

Education

B.S./B.Tech in IT/CS

CCNA certification

Tools

Cisco devices

Fortinet devices

VMware

Proxmox VE

SAN switches

Job description

Job Description:

Job Description – Network & System Engineer

Position

Network & System Engineer

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.

Linux & System Administration

• 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.

Virtualization

• 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.

Key Competencies

• 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.