Cambium Networks

2 days ago

Bengaluru, Karnataka, India Cambium Networks Private Limited Full time ₹ 12,00,000 - ₹ 36,00,000 per year

Knowledge/ Skill Requirement :

- Highly proficient in C and networking feature development in Linux-based platforms, with 8 to 12 years of experience.

- Experience in developing and maintaining Linux kernel-based networking subsystems (netdev, netfilter, TCP/IP stack, Wi-Fi, GRE, VLAN, vxlan, bridges etc.)

- Experience in drivers and modules for networking hardware (Ethernet, Wi-Fi)

- Experience in designing, developing, and troubleshooting data path/control plane features (offload, acceleration, QoS)

- Optimization Knowledge in network stack performance and resource utilization in embedded networking systems.

- Skills to debug and resolve complex networking issues using tools like tcpdump, Wireshark, perf, ftrace.

- Skill to collaborate with the Chip vendor - QCA and port the changes from the chip vendor side.

- Experience in Wi-Fi protocol is a Plus.

- Strong C programming in kernel and user space

- In-depth Linux kernel networking architecture understanding

- Experience with Layer 2/Layer 3 protocols (bridging, routing, VLAN, STP, IGMP, multicast)

- Exposure to iptables/nftables, and Linux firewall mechanisms

- Experience debugging with gdb, tcpdump, and kernel logs

- Familiarity with build systems (Buildroot, openwrt, Makefiles)

- Strong analytical and problem-solving skills

- Excellent verbal and written communication skills

- Experience working in a multi-site, multi-national development team

- Candidate must be highly self-motivated with a desire to produce world-class innovation to meet connectivity needs for the future

Key Qualifications :

- BE/B-tech/BS or MS in either Electrical Engineering, Computer Engineering or Computer Science

- Minimum 8 years of industry experience developing real-world products or systems

- Willingness/ability to travel occasionally for customer visits, road shows and seminars

- Self-motivated personality and ability to work independently as well as on a team

- Ability to multitask between two or more projects and perform these tasks with velocity

- Flexibility and being able to adjust to a rapidly changing environment

Key Responsibilities :

- Design, develop, and maintain Linux kernel-based networking subsystems (netdev, netfilter, TCP/IP stack, VLAN, VXLAN, GRE, Wi-Fi, bridges, etc.

- Develop and enhance device drivers and kernel modules for networking hardware (Ethernet, Wi-Fi).

- Implement and optimize data path/control plane features, including offload, acceleration, and QoS.

- Analyze and improve network stack performance and resource utilization in embedded systems.

- Debug and resolve complex networking issues using tools such as tcpdump, Wireshark, perf, and ftrace.

- Collaborate with chip vendors (e.g, QCA) to integrate and port networking features.

- Work on Layer 2/Layer 3 protocols (bridging, routing, VLAN, STP, IGMP, multicast).

- Develop and troubleshoot firewall and packet filtering mechanisms (iptables/nftables).

- Build, test, and deploy systems using Buildroot, OpenWrt, and Makefiles.

- Participate in code reviews, architecture discussions, and continuous improvement initiatives.

- Collaborate with global, multi-site engineering teams to deliver high-quality networking software

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