Senior Network Security Engineer

Location :  Jaipur, Rajasthan

Type :  Onsite

Duration :  1 Year (Fulltime)

CTC :  7 to 10 lakhs.

Job Summary

Nano Infomatrix LLC is seeking an experienced  Senior Network Security Engineer  to remotely build and support our customer infrastructure environment based in  San Jose, CA . The ideal candidate will have hands-on architect, and setup expertise in network and security technologies, including  Cisco Firepower NGFW ,  LAN / WAN / VPN , and  F5 load balancing , as well as experience with  proxy solutions ,  SFTP , and  vulnerability management tools  such as  Tenable . Prior experience in  manufacturing environments  is a strong plus.

Key Responsibilities

Design, implement, and maintain secure network infrastructure across LAN, WAN, and VPN environments.

Configure, manage, and troubleshoot  Cisco Firepower Next-Generation Firewalls (NGFW) .

Support  proxy / Next-Gen firewall  setups to enhance network security and performance.

Deploy and maintain  F5 load balancers  to optimize traffic and ensure high availability.

Manage and secure  SFTP  configurations for data transfers.

Utilize  Tenable  for vulnerability assessment, monitoring, and remediation support.

Ensure compliance with security policies, standards, and best practices.

Collaborate with cross-functional teams (network, systems, and security operations) to implement secure solutions.

Document infrastructure configurations, processes, and operational procedures.

Required Skills & Experience

5+ years of hands-on experience in network security engineering.

Strong expertise in  Cisco Firepower NGFW ,  LAN / WAN / VPN  technologies.

Experience with  Proxy / Next-Gen Firewalls , and  F5 load balancing .

Knowledge of  SFTP  configurations and management.

Familiarity with  Tenable  or other vulnerability management tools.

Excellent troubleshooting and analytical skills.

Strong communication and documentation abilities.

Preferred Qualifications

Experience working in  manufacturing environments .

Relevant certifications such as  CCNP Security ,  F5 Certified ,  CISSP , or  CEH .

Ability to work independently in a hybrid / remote environment.