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Network and Security Engineer

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Onsite

Network and Security Engineer

Crescentia Infotech

Network and Security Engineer

2 months ago

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Important information


Contract type:

Permanent

Location:

Kochi, Kerala, India

Work mode:

Onsite

Published on:

24 August 2026

What they need


Role Summary

As a network /Security engineer, you provide advanced technical support for network & security related issues. This role requires in-depth knowledge of network infrastructure security troubleshooting, and problem-solving skills. The L2 Network Engineer will work closely with customer to Implement new projects requirement, diagnose, troubleshoot, and resolve complex network problems.

Key Responsibilities

  • Provide technical support for network-related issues, including but not limited to:
  • Routing and switching protocols (e.g., OSPF, BGP, VLANs)
  • Network security (firewalls, VPNs)( Fortigate,Cisco,Sonicwall,Palo Alto,Fortimail)
  • Network performance monitoring and optimization (SolarWinds , Cisco Prime, WhatsApp Gold)
  • LAN/WAN connectivity issues
  • Implement enterprise communication systems Cisco /AVAYA (VoIP, video conferencing, collaboration tools).
  • Design and implement robust LAN, WAN, and wireless networks. (Cisco, ARUBA, Huawei, Juniper)
  • Design and implement NGFW including Palo Alto, Checkpoint, SonicWall & Fortinet Firewalls.
  • Design and implementation of Aruba ClearPass and Cisco ISE.
  • Lead network upgrades, migrations, and expansion activities with minimal downtime.
  • Simulate critical scenarios in test labs for problem-solving and compatibility checks.
  • Configure and support WAF, Load Balance, Email Security and WSA.
  • Implement security protocols, network segmentation, and policy-based routing (PBR).
  • Troubleshoot and resolve complex network problems through remote access tools and onsite
  • Escalate critical issues to higher-level support when necessary.
  • Document and track incidents and resolutions in the ticketing system.
  • Maintain and update knowledge base articles and FAQs.
  • Participate in on-call rotation for after-hours support.
  • Prepare all project related documentation (HDL/LLD/Scope of work /Signoff ).
  • Provide Pre-sale assistance to sales team as when necessary.

Qualifications

  • Bachelor's degree in Computer Science, Information Technology, or related field.
  • Strong understanding of network protocols, architectures, and technologies.
  • Hands-on experience with network devices (routers, switches, firewalls).
  • Excellent troubleshooting and problem-solving skills.
  • Strong communication and interpersonal skills.
  • Ability to work independently and as part of a team.
  • Willingness to acquire all related certification and hands on experience.
  • Experience with remote support tools (e.g., TeamViewer, Any Desk).

Preferred Qualifications

  • Industry certifications (e.g., CCNA, CCNP).
  • Experience with network monitoring and management tools.

Certifications Preferred:

  • Cisco CCNP Enterprise - Certification and get trained
  • Aruba NAC Clear Pass - Certification and get trained
  • Palo Alto - PC NSA - Certification and get trained
  • sonic wall Firewall - Certification and get trained
  • Forti mail, and FortiGate Firewall - Certification and get trained.

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