L3 Network engineer- Hyderabad/Mumbai/Ahmedabad

Nipun Net Solutions

5 years

3 - 5 Lacs

hyderābād

Posted:3 days ago| Platform: GlassDoor logo

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Skills Required

network routing switching engineering troubleshooting firewall security support design vrrp cisco escalation resolve latency monitoring wireshark solarwinds surveys signal compliance audits maintenance configuration patch management documentation collaboration training planning efficiency automation python ansible certifications networking ids analysis scripting communication aws azure gcp wan data

Work Mode

Remote

Job Type

Part Time

Job Description

Required Skills : Routing ,Switching, wireless,firewalls
Experience : 5+ years of experience in network engineering, with a strong focus on wireless, switching, and firewalls, and at least 2-3 years in L3 role
Qualification : Bachelor’s degree in computer science/Btech or equivalent degree
No.of positions : 3
Email sravani.m@nipun.net
The L3 Network Engineer specializing in Wireless, Switching, and Firewalls is a senior-level professional responsible for designing, implementing, managing, and troubleshooting complex network environments. This role involves working with wireless infrastructure, Layer 2/3 switching, and firewall security systems to ensure a robust and secure network. The L3 Network Engineer will provide advanced technical support, mentor junior staff, and collaborate with various teams to deliver high-quality network solutions.
Key Responsibilities:
- Network Design and Implementation:
- Design, deploy, and manage wireless network solutions, including access points, controllers, and wireless LAN controllers (WLCs) to provide optimal coverage and performance.
- Configure and maintain Layer 2/3 network switching environments, including VLANs, STP, VTP, HSRP/VRRP, VSS, and port channel configurations.
- Implement and manage firewall solutions from vendors like Cisco, Palo Alto, Fortinet, and Check Point, including configuring access control lists (ACLs), NAT, VPNs, and intrusion prevention systems (IPS).
- Advanced Troubleshooting and Support:
- Act as an escalation point for L1 and L2 network support teams, providing advanced troubleshooting for wireless, switching, and firewall-related issues.
- Diagnose and resolve complex network issues such as connectivity problems, packet loss, latency, and security incidents.
- Use network monitoring tools and packet analyzers (e.g., Wireshark, SolarWinds, Cisco DNA Center) to identify and address performance bottlenecks and failures.
- Wireless Network Optimization:
- Conduct site surveys using tools like Ekahau or AirMagnet to design and optimize wireless coverage, capacity, and performance.
- Troubleshoot RF-related issues, such as interference, channel overlap, and signal degradation.
- Configure and optimize wireless security protocols, including WPA3, 802.1X, RADIUS, and EAP.
- Network Security and Compliance:
- Configure and manage firewall rules, VPNs, and security policies to protect network resources and ensure compliance with security standards.
- Perform regular security assessments, vulnerability scans, and audits to identify and mitigate security risks.
- Respond to and resolve network security incidents, including DDoS attacks, malware outbreaks, and unauthorized access attempts.
- Network Monitoring and Maintenance:
- Implement and maintain network monitoring systems to proactively detect and resolve issues before they impact operations.
- Perform regular maintenance tasks, such as firmware upgrades, configuration backups, and patch management for network devices.
- Maintain accurate network documentation, including network diagrams, device configurations, and procedures.
- Collaboration and Mentorship:
- Work closely with cross-functional teams (e.g., systems, security, applications) to integrate network solutions and ensure seamless operation.
- Provide mentorship, training, and guidance to L1 and L2 engineers to help them develop their technical skills and knowledge.
- Participate in technical workshops, knowledge-sharing sessions, and project planning meetings.
- Process Improvement and Automation:
- Identify opportunities to improve network processes and workflows to increase efficiency and reduce manual effort.
- Develop automation scripts and tools (e.g., Python, Ansible) to streamline network configuration, monitoring, and management tasks.
Qualifications and Skills:
- Certifications: Relevant certifications such as CCNP Wireless, CCNP Enterprise, CCNP Security, CWNA/CWSP, PCNSE, or equivalent are highly desirable.
- Technical Skills:
- - In-depth knowledge of wireless networking standards (802.11a/b/g/n/ac/ax), WLAN design, and RF optimization.
  - Expertise in Layer 2/3 switching technologies, including VLANs, STP, LACP, HSRP/VRRP, and VSS/VPC.
  - Proficiency in configuring and managing firewalls (e.g., Cisco ASA/Firepower, Palo Alto, Fortinet, Check Point) and security features like IPS/IDS, NAT, and VPN.
  - Experience with network monitoring and analysis tools (e.g., Cisco Prime, DNA Center, Wireshark, SolarWinds).
  - Knowledge of scripting and automation (Python, Ansible) is a plus.
- Problem-Solving Skills: Excellent analytical and troubleshooting skills with the ability to resolve complex network issues.
- Communication Skills: Strong verbal and written communication skills, with the ability to interact with technical and non-technical stakeholders.
- Organizational Skills: Ability to manage multiple tasks, prioritize work, and meet deadlines in a fast-paced environment.
Preferred Qualifications:
- Experience with cloud networking (AWS, Azure, GCP) and hybrid environments.
- Knowledge of network access control (NAC) solutions such as Cisco ISE or Aruba ClearPass.
- Familiarity with SD-WAN technologies and implementations.
Working Conditions:
- Office environment with potential for remote work.
- May require occasional travel to client sites, data centers, or for training purposes.
- On-call availability and occasional after-hours work for network maintenance or emergencies.

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