Network Engineer – Routing & Switching (L3)

Senior Network Engineer – Cisco Routing & Switching (L3)

Location: Mumbai

Employment Type: Full-time

Shift: Rotational

Weekly Off: Depending on workload

Joining Timeline: Immediate

Role Overview:

Hiring an experienced Cisco R&S Network Engineer (8+ years) to manage and optimize ultra-low latency, high-availability trading network infrastructure in a SEBI-regulated DC/DR environment like the National Stock Exchange.

The role involves real-time network operations, routing stability, and controlled change management under strict uptime SLAs.

Key Responsibilities:

· Manage and troubleshoot core routing and switching platforms (Cisco Nexus, Catalyst, ASR, ISR, 9K/7K series).

· Ensure latency-optimized Layer 2/Layer 3 network performance across DC, DR, and co-location trading sites.

· Configure and maintain BGP, OSPF, HSRP/VRRP, Port-Channels, VPC, MST/PVST/STP tuning.

· Perform real-time fault isolation, packet tracing, and escalation handling during trading hours.

· Execute planned maintenance/change windows in controlled trading blackout periods (pre-open/post-close).

· Participate in Root Cause Analysis (RCA) reports and audit submissions as per SEBI/compliance standards.

· Coordinate with security, ACI, and application teams for seamless network integration and segmentation.

· Maintain runbooks, network topology schematics, and compliance-ready documentation.

· Contribute to network redundancy planning, DR failover testing, and trading network continuity drills.

Technical Requirements:

· 8+ years hands-on in Cisco Routing & Switching (DC + Core Network Operations).

· Strong command over BGP route control and convergence optimization for trading traffic.

· In-depth knowledge of Layer 2 stability, spanning-tree tuning, multicast (PIM), QoS for market data traffic.

· Experience working in financial/BFSI or high-availability exchange-grade network environments.

· Familiarity with ITIL-based incident/change management and RCA documentation.

Preferred Certifications:

· CCNP Routing & Switching / CCNP Enterprise

· Cisco Specialist – Core Networking

· ITIL Foundation (preferred for BFSI governance environments)