Network Engineer L2

Role Overview

We are looking for an experienced Network Security Engineer to design, implement, maintain, and secure enterprise network infrastructure. The role requires a strong understanding of network security principles, hands-on experience with security technologies, and the ability to troubleshoot complex network and security issues.

The ideal candidate will work closely with network, infrastructure, cloud, application, and security teams to ensure secure, resilient, and highly available network environments. The candidate should be comfortable handling security incidents, performing root-cause analysis, implementing security controls, and contributing to continuous improvement of the organization's network security posture.

Key Responsibilities

• Design, implement, configure, and maintain enterprise network security infrastructure.
• Manage and support network security technologies including firewalls, VPNs, IDS/IPS, secure gateways, and network access controls.
• Configure and maintain security policies, access rules, NAT, VPN tunnels, and related network security controls.
• Monitor network traffic and security events to identify potential threats, anomalies, and unauthorized access.
• Troubleshoot complex network connectivity and security-related issues and perform root-cause analysis.
• Investigate and respond to network security incidents in coordination with security and infrastructure teams.
• Review firewall and network security rules regularly and ensure they follow established security standards and business requirements.
• Support secure connectivity across data centers, corporate networks, remote locations, cloud environments, and third-party networks.
• Participate in network security assessments, vulnerability remediation, and security hardening activities.
• Implement and maintain network segmentation and access-control mechanisms.
• Work with internal teams to assess security requirements for new applications, infrastructure, and network changes.
• Participate in change management, implementation, and post-change validation activities.
• Maintain network security documentation, architecture diagrams, configurations, and operational procedures.
• Contribute to security improvement initiatives, automation, standardization, and operational efficiency.
• Work with vendors and technology partners for issue resolution, upgrades, and technical escalations.
• Ensure network security operations align with organizational policies, industry standards, and compliance requirements.

Required Skills

• Strong experience in network security engineering and enterprise networking.
• Good understanding of TCP/IP, DNS, DHCP, HTTP/HTTPS, routing, switching, VLANs, and network protocols.
• Hands-on experience with enterprise firewalls and security gateways.
• Strong understanding of VPN technologies, IPsec, SSL/TLS, NAT, and access-control policies.
• Experience with IDS/IPS, network monitoring, traffic analysis, and security event investigation.
• Experience troubleshooting network and security issues across complex environments.
• Good understanding of network security architecture, segmentation, and secure connectivity.
• Experience with incident management, change management, and root-cause analysis.
• Familiarity with security best practices, vulnerability management, and network hardening.
• Strong analytical, troubleshooting, and problem-solving skills.
• Good written and verbal communication skills with the ability to work effectively with technical and non-technical stakeholders.

Preferred Skills

• Experience with security technologies from vendors such as Palo Alto, Fortinet, Cisco, Check Point, or similar.
• Exposure to cloud networking and cloud security across AWS, Azure, or GCP.
• Knowledge of Zero Trust, SASE, SD-WAN, or network access control concepts.
• Experience with security monitoring/SIEM platforms.
• Exposure to scripting or automation using Python, PowerShell, or similar technologies.
• Relevant certifications such as CCNA/CCNP Security, PCNSE, Fortinet certifications, or equivalent are an advantage.

Key Competencies

• Network Security Engineering
• Enterprise Network Troubleshooting
• Firewall & VPN Management
• Security Incident Handling
• Network Monitoring & Analysis
• Security Hardening
• Root-Cause Analysis
• Risk & Vulnerability Awareness
• Change & Configuration Management
• Stakeholder Communication
• Problem Solving
• Documentation & Process Discipline

A Network Engineer is responsible for designing, implementing, and maintaining an organization’s computer networks to ensure reliable connectivity, security, and performance. The role involves configuring routers, switches, firewalls, and other networking equipment, as well as monitoring network activity to prevent downtime and optimize efficiency.

🚨 We're Hiring: Network Engineer 🚨

ZigZag AI is looking for a Network Engineer with 1+ year of hands-on experience to join our team!

What we're looking for:

🔹 Solid working knowledge of Firewalls & Firewall Rules

🔹 Experience with NVR/DVR systems

🔹 Strong understanding of Port Forwarding & NAT

🔹 Good communication skills — both Hindi and English are a must

Compensation: ₹4 LPA

About ZigZag AI:

Zigzag AI is building the future of operational intelligence. Our AI connects to existing cameras and helps businesses understand what is happening on the ground, spot issues early, and take action faster. From shops and bungalows to hotels, factories, and hospitals, Zigzag helps teams run smoother, safer, and smarter operations every day.

This is not just monitoring. This is AI that drives execution.

Trusted by leading clients such as Tata, Birla, Treebo, JP Minda, Philips, and many more.

If you're someone who enjoys solving real-world networking problems and wants to grow with a fast-paced, mission-driven team, we'd love to hear from you!

#Hiring #NetworkEngineer #ITJobs #FirewallEngineer #CCTV #NVR #DVR #JobOpening #ZigZagAI #OperationalIntelligence

Job Description

Education Qualification

Label Value Education Qualification Engineer - B.E / B.Tech / MCA

Skills

Primary -> Technology | WAN/LAN/Security | 4 - Advanced 

Primary -> Technology | Cisco | 4 - Advanced 

Primary -> Technology | Palo alto | 4 - Advanced 

Primary -> Technology | Fortinet | 4 - Advanced 

Primary -> Technology | Meraki | 4 - Advanced 

Secondary -> Technology | Zscaler | 4 - Advanced 

Tertiary -> Technology | Cloud Networking | 4 -

Advanced Certification Technology | NSE4 | PCNSE | CCNP | ECMS1 | ZIA/ZPA - Admin | AZ-900/AWS solutions architect (associate)

Contract - 6 Months

Experience - 10-12 years 

Qualifications

• 8+ years of relevant technical I.T. infrastructure or operations experience.
• Experience with, and ability to design, deploy, manage, and troubleshoot wireless & wired network equipment and protocols in a medium-large campus environment.
• In-depth knowledge in WAN transport systems/services, Telecommunications systems/service, LAN switch technology (including Spanning tree, VTP domain management), routing protocols (EIGRP, OSPF, BGP4), Software-Defined technology (SD-WAN).
• Proven ability to manage a multi-vendor WAN, multi-protocol routing, including but not limited to NHRP, EIGRP, BPG4, OSPF and RIPv2.
• Strong hands-on experience on Fortinet SD-WAN, Forti Switch/AP, Forti-Manager, Forti-Analyzer, Fortinet Firewalls.
• Hands-on experience on Switching, Wireless, Firewall and Load balancer technologies (Any OEM).
• Demonstrated ability to manage multiple projects in an efficient manner.
• Proven experience of LAN/WAN/Security design & implementation experience; completing projects wing2wing from planning>design>implementation.
• Work with project managers and other teams to achieve project deadlines.
• Demonstrated excellence in communications, presentation and customer focus skills.
• Certified in Fortinet NSE4 or higher.

Deliverables

• Understand / discuss solution with customer and internal technical teams.
• Take ownership of HLDs and LLDs for SDWAN implementations.
• Build customer relationships to gain a deep understanding of business and technical requirements.
• Implementation of solutions and achieve successful implementation within proposed Project timelines.
• Provide customers with technical guidance that is based on strong technical skills and informed by the customer’s needs.
• Help leads with process improvement – like pre-approved change template creation, effective implementation of internal processes.
• Act as technical mediator between Solutions Team, Product team to review new product implementation guides.

Network Engineer – L3

Location: Mumbai | On-site

Experience: 8–10 Years

Key Responsibilities:

• Install, configure, maintain and troubleshoot network & security infrastructure.
• Handle LAN/WAN, BGP, OSPF, HSRP/VRRP, VLAN, STP, SVI & LACP.
• Manage Cisco/Juniper switches, routers and firewalls.
• Work on Fortinet/Checkpoint/Juniper/Cisco firewalls, SD-WAN & ACI-SDN.
• Troubleshoot VPN, NAT, GRE, P-VPN, routing and connectivity issues.
• Monitor network performance using NMS, SNMP & Syslog.
• Coordinate with customers, vendors and TAC teams for issue resolution.
• Support data centre connectivity, network projects and RFP specifications.
• Participate in network upgrades, maintenance and troubleshooting.

Key Skills:

• Strong TCP/IP, IPv4/IPv6, BGP, OSPF, HSRP/VRRP knowledge.
• Hands-on experience with Cisco/Juniper/Mellanox/Dell/Arista.
• Firewall experience with Fortinet/Checkpoint/Cisco/Juniper.
• Experience in Data Centre environments.
• Good communication and troubleshooting skills.
• Willingness to work in shifts, weekends and holidays.

Job Summary

We are looking for an experienced Network Engineer with strong hands-on expertise in enterprise networking, cloud networking, network security, routing, switching, and troubleshooting. The candidate will be responsible for designing, implementing, maintaining, and optimizing secure and highly available network infrastructure across on-premises and cloud environments.

Key Responsibilities

• Design, configure, and manage enterprise network infrastructure, including routers, switches, firewalls and load balancers.
• Configure and troubleshoot routing protocols such as BGP, OSPF and static routing.
• Manage LAN, WAN, VLANs, VPNs, subnets, NAT, DNS and DHCP.
• Implement and support cloud networking across AWS and Azure, including VPC, VNet, route tables, Network Security Groups (NSGs), security groups and private endpoints.
• Configure site-to-site VPNs, remote-access VPNs, AWS Direct Connect and Azure ExpressRoute.
• Troubleshoot network connectivity, latency, packet loss, MTU issues and routing problems.
• Monitor network performance, availability and capacity using network monitoring tools.
• Implement network security policies, firewall rules, access controls and segmentation.
• Support hybrid cloud connectivity and on-premises-to-cloud network migration.
• Collaborate with infrastructure, cloud, security and application teams to resolve network incidents.
• Perform root cause analysis (RCA), document network configurations and maintain operational runbooks.
• Support change management, disaster recovery and high-availability requirements

Technical / Behavioral-

• Working experience on Juniper SRX Firewalls and Checkpoint Firewalls
• working experience on Routing Protocols: BGP, OSPF, VPNs, Switching and STP, VX LAN
• Coding Knowledge on Python and Ansible
• Troubleshoot issues related to the network and Security environment.
• Experience with ITIL and Project Management.
• Ability to work in a team environment.
• Strong knowledge on IPS/IDS, Packet Capture Analysis.
• Communication and presentation skills.
• Documentation of complex technologies and topologies based on based practices.
• Experience with Wireshark packet captures.
• Experience in Automation, Python and Ansible

Job Summary

We are looking for an experienced Network Engineer with strong expertise in network security, firewall administration, Check Point, Juniper SRX, routing protocols, and Python scripting. The candidate will be responsible for managing, configuring, troubleshooting, and optimizing enterprise network infrastructure while ensuring secure and reliable connectivity.

Key Responsibilities

• Configure, manage, and troubleshoot enterprise network devices, firewalls, and security appliances.
• Administer and maintain Check Point firewalls, including security policies, NAT rules, VPNs, and access control.
• Manage Juniper SRX firewalls, including security zones, policies, NAT, IPsec VPNs, and threat prevention.
• Implement and troubleshoot routing protocols such as BGP, OSPF, EIGRP, and static routing.
• Perform network troubleshooting related to connectivity, packet loss, latency, routing, and firewall traffic.
• Configure and maintain site-to-site VPNs and remote-access VPN solutions.
• Monitor network performance, analyze traffic logs, and investigate security incidents.
• Perform firewall rule reviews, configuration backups, software upgrades, and security patching.
• Develop Python scripts to automate network configuration, monitoring, reporting, and routine operational tasks.
• Work with network monitoring tools, packet analyzers, and logging platforms to identify and resolve network issues.
• Participate in incident management, root cause analysis (RCA), change management, and network maintenance activities.
• Maintain network documentation, configuration standards, and operational runbooks.

Job Summary:

We are looking for an experienced Senior Network Engineer with strong hands-on expertise in Cisco Routing & Switching and Core Networking. The role involves providing technical leadership, coordinating network engineering initiatives, improving network reliability, and supporting strategic projects across Branch Data Access and Standalone ATM network infrastructure.

Key Responsibilities:

• Provide technical leadership and operational coordination for network engineering initiatives related to Branch Data Access and Standalone ATM products.
• Support strategic network projects, including planning, implementation, and delivery of key initiatives.
• Oversee the Book of Work (BoW) related to Branch Data Access and Standalone ATM products.
• Collaborate with ATM Banking, Network Engineering, Implementation teams, and external service providers such as Verizon and AT&T.
• Analyze complex network engineering challenges and contribute to effective troubleshooting and resolution.
• Drive initiatives to reduce operational risks and improve network performance, stability, and service reliability.
• Coordinate with cross-functional stakeholders and vendors to ensure smooth project execution.
• Mentor junior engineers and support knowledge sharing within the team.
• Contribute to network strategy, governance, compliance, and continuous operational improvement.

Required Skills:

• Strong experience in Cisco Routing & Switching.
• Solid understanding of Core Networking concepts.
• Experience in network engineering, implementation, and troubleshooting.
• Experience coordinating network projects and working with cross-functional teams.
• Strong communication, stakeholder management, and problem-solving skills.

We are looking for an experienced Senior Network Engineer with strong expertise in Cisco Routing & Switching and Core Networking. The candidate will support strategic network initiatives across Branch Data Access and Standalone ATM environments, ensuring network reliability, operational excellence, and risk reduction. The role involves technical leadership, project coordination, vendor management, and collaboration with cross-functional teams.

Responsibilities

• Design, configure, maintain, and troubleshoot Cisco routing and switching infrastructure.
• Support core networking operations across Branch Data Access and Standalone ATM environments.
• Lead network initiatives, project execution, and Branch Must-Win Battles.
• Manage and track the Book of Work (BoW) for Branch Data Access and Standalone ATM products.
• Coordinate with ATM Banking, Engineering Implementation teams, and service providers such as Verizon and AT&T.
• Identify and resolve complex network issues, minimize operational risks, and improve service reliability.
• Provide technical guidance and mentorship to junior network engineers.
• Collaborate with stakeholders to ensure successful project delivery and adherence to network standards and compliance requirements.
• Contribute to network strategy, governance, capacity planning, and continuous improvement initiatives.

Required Skills

• 7+ years of experience in Network Engineering.
• Strong hands-on experience with Cisco Routing & Switching.
• Good understanding of Core Networking, LAN/WAN, TCP/IP, VLANs, routing protocols, and network troubleshooting.
• Experience in network operations, incident management, and service reliability.
• Strong stakeholder coordination, vendor management, and project execution skills.
• Ability to lead technical initiatives and mentor junior engineers.
• Excellent communication, analytical, and problem-solving skills.