Network Security Engineer

About Company:

Established in August 2017, Interspence Solutions LLP (Interspence Solutions)  is a dynamic IT consulting and support services company, focused on delivering high-value technology solutions within the manufacturing and process industries. We areproud to be in a long-term strategic partnership with a major U.S.-based Oil & Gascorporation, providing skilled IT resources and services under the guidance of their IT leadership team.

Our client is undergoing a major digital transformation, driven by significant investments in cutting-edge technologies such as real-time data capture, Big Data platforms, in-memory databases, advanced analytical engines, and elastic search capabilities. A strong emphasis is also being placed on mobility, with most enterprise applications being transitioned into mobile platforms.

Additionally, IT Infrastructure Analyst has emerged as a core initiative, revolutionizing how IT solutions are developed, deployed, and managed enhancing both speed and scalability.

As this transformation unfolds, there is a growing demand for skilled, motivated professionals eager to contribute, learn, and grow. At Interspence, we are committed to building a team of forward-thinking individuals ready to embrace innovation and redefine what’s possible through technology.

Job Title: Network Security Engineer

Location: Mumbai – Andheri (East) – Remote

Department: IT Security

Employment Type: Full-Time (WFO)

Work Mode: IN – OFFICE (5 days working- 2 days week-off)

Hours of operation: 8hrs weekly rotational shifts

Position Summary:

Interspence Solutions is seeking a skilled and dedicated Network Security Engineer to manage and maintain network security infrastructure for a major US-based Oil & Gas client. The role involves hands-on administration of firewalls, wireless networks, and switches, ensuring robust protection against unauthorized access and cyber threats.

Key Responsibilities:

Firewalls – Palo Alto / FortiGate

  • Design & Implementation: Design, configure, and implement security solutions using Fortinet and Palo Alto products for various client environments.
  • Firewall Management: Deploy, manage, and maintain firewalls, including configuring security policies, NAT, and VPNs.
  • Network Protocol Expertise: Proficiently work with network protocols like TCP/IP, DNS, DHCP, BGP, and OSPF.
  • Security Monitoring & Threat Detection: Monitor network traffic, security logs, and other systems to detect and respond to security threats.
  • Troubleshooting: Diagnose and resolve complex network and security issues, including firewall configurations and connectivity problems.
  • Incident Response: Lead efforts to respond to network security incidents, ensuring rapid resolution and effective communication.
  • Documentation: Create and maintain detailed documentation for network configurations, procedures, and security policies.
  • Customer Support: Provide technical support and guidance to customers and internal teams on Fortinet and Palo Alto solutions.

Fortiswitch / Fortinac

  • Configuration & Deployment:  Set up, configure, and deploy FortiSwitch devices within the network, often with a focus on integrating them with existing FortiGate deployments.
  • Security Integration: Leverage the Fortinet Security Fabric to apply unified security policies, gaining visibility and control over devices connected to the FortiSwitch.
  • Security Policy Enforcement: Work to implement and enforce security policies that extend from the FortiGate to the FortiSwitch.
  • Software Development/QA: Working with the development team to ensure the quality and functionality of the FortiNAC product through testing.
  • Network Engineering: Designing, deploying, and managing network access policies, including 802.1X, on networks that utilize FortiNAC.
  • System Administration: Monitoring FortiNAC devices, viewing and registering known devices, and managing logs and reports within the system.
  • Policy Implementation: Configuring device profiles and network access policies that use user roles, device types, and network locations to control access.

Peplinks

  • Deploy and manage Peplink SD-WAN solutions across 50+ enterprise branch offices, leveraging SpeedFusion technology to improve WAN reliability and performance.
  • Use InControl central management platform to configure, monitor, and troubleshoot a global fleet of Peplink and Pepwave devices.
  • Provide Tier 2/3 technical support for complex network connectivity issues, including WAN, LAN, and VPN configurations using Peplink hardware.
  • Diagnose network issues related to Peplink hardware and software, connectivity problems, and VPN configurations.
  • Experience in managing VMWare and Kubernetes environments including installation and upgrades.
  • Maintain an internal knowledge base to improve support team efficiency and document common resolutions.
  • Timely renewal of the subscription of the Peplinks.

Switches – Dell / Cisco

  • Configure interfaces and VLANs
  • Assign ports and access lists to VLANs
  • Perform basic switch troubleshooting

Qualifications:

  • 3–4 years of hands-on experience in network security
  • Bachelor’s or Master's degree in Computer Science, IT, or a related field.
  • Strong understanding of networking and security fundamentals
  • Proven hands-on experience with Fortinet products (FortiGate, FortiManager, FortiAnalyzer) and Palo Alto Networks platforms.
  • Security Fabric Integration: Skill in integrating FortiNAC with other Fortinet products, such as FortiGate firewalls, FortiSwitch, and FortiAuthenticator
  • Experience with Dell switches.
  • Troubleshooting: Advanced network diagnostics, packet analysis, and problem resolution.

Good to have:

  • Peplink Networking: SD-WAN, SpeedFusion, InControl, VPN (IPSec, PepVPN), QoS, VLANs, OSPF, BGP
  • Bachelor’s or Master's degree in Computer Science, IT, or a related field.
  • Hardware: Peplink Balance and MAX routers, Pepwave devices
 
Job Type: Full Time
Job Location: Mumbai

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