Cambium Networks
4 weeks ago
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 futureKey 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 environmentKey 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 (ref:hirist.tech)
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