Cisco India Interview Questions 2026: Software Engineer Guide (Bengaluru)

Cisco India's interview process: (1) online assessment (CodeSignal or HackerRank, 2 coding problems, medium difficulty, 60-90 minutes, with emphasis on clean code rather than algorithmic extremes), (2) technical phone screen (one coding problem and basics of networking or distributed systems depending on role, 45-60 minutes with a Bengaluru engineer), (3) virtual panel interview: 2-3 technical rounds and 1 behavioural round. The technical depth varies significantly by product team: for networking product roles (IOS XE/XR, routing, switching), networking protocol knowledge (TCP/IP stack, BGP, OSPF, VLAN, network security) is directly tested. For Webex and AppDynamics roles, the interview is more standard software engineering: distributed systems, real-time communication protocols (WebRTC, SIP), API design, and system design for large-scale services.

Cisco India's major engineering areas: IOS XE and IOS XR (the proprietary operating system software running Cisco's network switches and routers; Bengaluru is a primary development centre and this is one of the most technically deep software systems in the industry). Cisco Security (SecureX, Umbrella DNS security, Duo MFA, Secure Endpoint; Bengaluru teams own significant security platform components). Webex (Cisco's collaboration platform competing with Zoom and Teams: Bengaluru owns the Webex Developer API platform, room device software for hardware endpoints, and the Webex SDK for third-party integration). AppDynamics (application performance monitoring: Bengaluru works on the agent architecture that instruments applications to collect performance telemetry). ThousandEyes (internet intelligence platform monitoring network paths and performance).

For roles on networking product teams, this knowledge is directly tested: OSI model (the 7 layers and what protocols operate at each). TCP/IP fundamentals (the three-way handshake: SYN, SYN-ACK, ACK; TCP congestion control: slow start, congestion avoidance, fast retransmit; when to use UDP over TCP). IP addressing and subnetting (CIDR notation: given 192.168.1.0/26, calculate the network address, broadcast address, usable host range, and number of hosts). Routing protocols (BGP: Border Gateway Protocol for routing between autonomous systems; OSPF: Open Shortest Path First, a link-state protocol using Dijkstra's algorithm). Network security (VLAN for network segmentation, NAT, firewall stateful inspection, SSL/TLS handshake). SDN basics (Software-Defined Networking: separation of control plane from data plane, OpenFlow protocol, relevance to Cisco's product evolution and Cisco DNA Centre).

Cisco India salary ranges: junior SWE (0-2 years): Rs 12-28 LPA. Mid-level (2-5 years): Rs 22-55 LPA. Senior (5-8 years): Rs 50-100 LPA. Staff/Principal (8+ years): Rs 90-160 LPA. Cisco RSUs (CSCO, NASDAQ-listed) vest over 4 years. Cisco also offers a strong Employee Stock Purchase Plan (ESPP) where employees buy Cisco stock at a 15% discount. Cisco India pays comparably to Oracle India and SAP India: above Indian IT MNCs but below hyperscalers. Networking domain expertise from Cisco is highly valued globally at Juniper Networks, Arista Networks, cloud provider networking teams, and telecom companies expanding their software-defined networking capabilities.