Sr. Network Engineer

Black Box; Gurugram District; On-site; INR 600,000 - 900,000; Full time

Job summary

Black Box in Gurgaon is seeking a Network Engineer to design, implement, and support enterprise wired and wireless networks with hands-on Cisco and Juniper expertise.

The role requires 3–8 years of experience in enterprise networking and CCNA/JNCIA preferred, with hands-on VLANs, routing, and WLAN security. This is an on-site role focusing on critical infrastructure and performance.

Qualifications

• 3–8 years of enterprise or service-provider networking experience.
• Bachelor’s degree in Engineering / IT / Computer Science (or equivalent).

Responsibilities

• Provide L2/L3 support for wired and wireless network environments.
• Troubleshoot incidents related to routing, switching, and WLAN.
• Coordinate with ISPs, OEM vendors, and internal stakeholders during deployments and upgrades.

Skills

TCP/IP & VLANs

Cisco IOS/NX-OS

Juniper JunOS

Wired Networking

Wireless WLAN

Routing Protocols

Documentation

Education

Bachelor's degree in Engineering/IT/CS

Tools

SolarWinds

PRTG

Wireshark

Job description

Job Code: NETWORK ENGINEER

Department: IT / Network Services

Role Type: Individual Contributor

Level: L2

Location: Gurgaon

Reporting To: Network Manager / Service Delivery Manager

Role Purpose

The Network Engineer will be responsible for design, implementation, operations, and support of enterprise wired and wireless networks, with hands‑on expertise in Cisco and Juniper technologies. The role supports business‑critical network infrastructure ensuring high availability, performance, and security.

Key Responsibilities

• Provide L2/L3 support for wired and wireless network environments
• Troubleshoot and resolve incidents related to routing, switching, and WLAN
• Participate in incident, problem, and change management processes
• Perform root cause analysis (RCA) and implement permanent fixes

Implementation & Configuration

• Configure and maintain Cisco and Juniper routers, switches, and wireless systems
• Implement VLANs, trunking, routing protocols, redundancy, and QoS
• Support new site deployments, expansions, and network upgrades
• Coordinate with ISPs, OEM vendors, and internal stakeholders

Wired & Wireless Technologies

• Manage LAN, WAN, WLAN infrastructure
• Configure routing protocols such as OSPF, BGP, EIGRP
• Support enterprise wireless (Controller‑based WLANs, RF fundamentals, WLAN security)
• Assist with wireless performance tuning and coverage optimization

Documentation & Compliance

• Maintain updated network diagrams, SOPs, and configuration documentation
• Ensure adherence to security, compliance, and organizational standards
• Support audits and internal reviews when required

Required Technical Skills

• Core Networking
  • Strong understanding of TCP/IP, OSI Model, VLANs, STP, DHCP, DNS
  • Hands‑on experience with Cisco IOS/NX‑OS and Juniper JunOS
• Wired Technologies
  • Cisco Catalyst / Nexus
  • Juniper EX / QFX switches
• Wireless Technologies
  • Enterprise WLAN solutions (Cisco / Juniper / equivalent)
  • Knowledge of WLAN security (802.1X, WPA2/WPA3)

Tools (Preferred)

• Network monitoring tools (SolarWinds, PRTG, or similar)
• Packet analysis tools (Wireshark)

Certifications

• Mandatory / Strongly Preferred
  • Cisco Certified Network Associate (CCNA)
  • Juniper Networks Certified Internet Associate (JNCIA)
• Preferred
  • CCNP (Enterprise / Wireless)
  • JNCIS / JNCIP

Experience & Education

• 3–8 years of experience in enterprise or service‑provider networking
• Bachelor’s degree in Engineering / IT / Computer Science (or equivalent experience)

Behavioral Competencies

• Strong troubleshooting and analytical mindset
• Clear communication and documentation skills
• Ability to work independently and in a team environment
• Willingness to support on‑call or shift‑based operations (if required)