Network Engineer L2

Wissen; Bengaluru; On-site; INR 800,000 - 1,200,000; Full time

Job summary

Wissen is seeking a Level 2 Network Engineer to join our Operations Team in Bengaluru, India. The role requires overseeing network performance, managing configurations across various cloud and on-premises tools, and providing advanced troubleshooting support. Ideal candidates should possess in-depth knowledge of Cisco ACI, SD-WAN technologies, and certification like CCNP.

Responsibilities include network management, incident resolution, and collaboration with teams for efficient operations. We promote an inclusive work environment and encourage all qualified applicants to apply.

Qualifications

• In-depth experience with Cisco Meraki, FortiGate, or CheckPoint.
• Strong expertise in Cisco ACI and Nexus series switches.
• Hands-on experience with Zscaler deployment and policy management.

Responsibilities

• Oversee network performance and configurations across multiple environments.
• Diagnose and resolve advanced incidents related to firewalls and load balancers.
• Implement and manage complex firewall rules and VPNs.
• Collaborate with teams to ensure minimal disruption during network changes.

Skills

In-depth experience with Cisco Meraki

Strong expertise in Cisco ACI

Proficiency in SD-WAN technologies

Hands-on experience with Zscaler deployment

Advanced knowledge of load balancers

Understanding of BGP and OSPF routing protocols

Experience configuring Cisco ISE

Education

CCNP, Fortinet NSE 5 or above, Zscaler ZCE

Tools

SolarWinds

Wireshark

FortiManager

Cisco FMC

NetScaler

Job description

Level 2 Network Engineer (Operations Team)

Key Responsibilities

1. Oversee network performance, ensuring uptime and optimal configurations across Cisco Meraki, FortiGate, Cisco, public cloud net ops, Cisco ISE, and SD‑WAN environments. Manage Cisco ACI and Cisco Nexus environments to ensure optimal performance and scalability. Identify, analyze, and resolve network performance bottlenecks and recommend enhancements. Monitor and maintain network health, proactively identifying and resolving issues related to ACI, Nexus switches, and routing.
2. Act as the escalation point for Level 1 engineers, resolving advanced incidents related to firewalls, DNS, Zscaler, SD‑WAN, and load balancers (NetScaler/F5). Diagnose and resolve network‑related application issues, including advanced routing, S2S VPNs, and traffic‑shaping problems. Configure and troubleshoot BGP and OSPF routing protocols within the network infrastructure. Perform root‑cause analysis (RCA) for recurring issues and provide actionable recommendations to prevent future occurrences. Configure, manage, and troubleshoot Cisco ISE for network access control, device authentication, and security policy enforcement across the network.
3. Design and implement advanced configurations for firewalls, load balancers, SD‑WAN, and Zscaler to meet business needs. Manage and maintain DNS records, including advanced configurations like load balancing, failover, and CDN integrations. Assist in planning and executing network upgrades, migrations, and deployments for multi‑site environments. Ensure high availability and redundancy of network components, including ACI fabric, Nexus switches, and routing protocols.
4. Implement and manage complex firewall rules and VPNs. Ensure compliance with security standards, conducting regular audits and vulnerability assessments on network devices. Support Zscaler policy configuration and integration with other network security tools.
5. Collaborate with cross‑functional teams to implement network changes with minimal disruption. Mentor Level 1 engineers by providing training, guidance, and support to improve team skill levels. Liaise with vendors for escalated support, product updates, and feature enablement.
6. Create and maintain detailed technical documentation for network infrastructure, configurations, and processes. Generate in‑depth reports on network performance, incident resolution, and system health for stakeholders. Maintain updated diagrams and records of network topology and architecture.
7. Participate in network architecture design discussions, providing insights and recommendations. Evaluate and recommend new tools, technologies, and processes to improve operational efficiency. Lead small‑scale projects involving network optimization, hardware refreshes, or policy implementations.
8. Manage backup and restoration processes for firewalls, DNS servers, load balancers, and SD‑WAN devices. Play a key role in disaster recovery planning and execution, ensuring rapid restoration of services.
9. Handle escalations and advanced troubleshooting beyond routine issues. Take ownership of critical incidents and lead their resolution. Contribute to network design and improvement discussions. Mentor and upskill junior team members. Ensure systems are compliant with the latest security standards and best practices.

Skills and Qualifications

• Technical Expertise
  • In‑depth experience with Cisco Meraki, FortiGate, CheckPoint, or Cisco firewall.
  • Strong expertise in Cisco ACI (Application Centric Infrastructure) and Cisco Nexus series switches.
  • Proficiency in SD‑WAN technologies, including advanced routing and policy configurations.
  • Hands‑on experience with Zscaler deployment and advanced policy management.
  • Advanced knowledge of load balancers like NetScaler and F5, including traffic steering and SSL offloading.
  • In‑depth understanding and hands‑on experience with BGP and OSPF routing protocols.
  • Hands‑on experience configuring and troubleshooting Cisco ISE for network access control and security policy enforcement.
• Tools and Platforms
  • Proficiency with network monitoring and troubleshooting tools (e.g., SolarWinds, Wireshark)
  • Familiarity with firewall management systems (e.g., FortiManager, Cisco FMC, ASDM) and SD‑WAN controllers.
• Certifications (Preferred)
  • CCNP, Fortinet NSE 5 or above, Zscaler ZCE, or equivalent.
  • NetScaler certifications are an added advantage.

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity, sexual orientation, national origin, or disability status.