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 EnterpriseCisco Specialist – Core NetworkingITIL Foundation (preferred for BFSI governance environments)