Software Engineer - Networking Datapath (QoS/CoS/ Firewall/ACLs/Filters)

Designation-Software Engineer - Networking Datapath (QoS/CoS/ Firewall/ACLs/Filters)

Exp- 6-12 yrs

Location- Bangalore (Hybrid)

R&R:

Key Responsibilities

• Design, develop, and optimize data-path software for silicon-based networking platforms, including Broadcom DNX and Marvell CN10XX.
• Implement and enhance routing, tunneling, packet-processing, and Quality of Service (QoS) protocols.
• Develop and debug networking components across Linux-based embedded systems and hardware platforms.
• Optimize code for throughput, latency, CPU utilization, memory consumption, and overall system performance.
• Work on Linux kernel internals, device drivers, multithreading, IPC, memory management, and network internals.
• Implement and troubleshoot protocols across Ethernet, IP networking, security, Wi-Fi, and telecom stacks.
• Collaborate with hardware, firmware, architecture, and system engineering teams to deliver integrated solutions.
• Lead technical discussions, mentor engineers, and drive engineering deliverables across the development lifecycle.
• Own the complete SDLC, from functional specifications and design to implementation, testing, integration, and production deployment.
• Perform debugging, root-cause analysis, performance profiling, and resolution of complex system-level issues.

Required Technical Skills

1. Operating Systems & System Internals

• Linux, Linux Kernel Internals, Linux Network Internals
• DPDK, Android, and device drivers
• Multithreading, memory management, process management, and IPC mechanisms

2. Networking & Protocols

• VXLAN, VLAN/VNI, TCP/IP, UDP, IPv4/IPv6, ARP, ICMP, DHCP, and DNS
• IPsec (ESP/AH), ISAKMP, and GRE tunneling
• Ethernet and complex routing protocols
• QoS implementation, including Wi-Fi 7 QoS (MSCS)
• FCIP and Ruckus GRE tunneling

3. Telecom Protocol Stacks

• TR-069 and TR-181
• SS7 stack, including M3UA and SCCP
• SIGTRAN, EDPL, and LTE OAM

4. Hardware & Silicon Platforms

• Broadcom (BRCM) DNX architecture and chipsets
• Marvell CN10XX
• ARM and Intel x86 architectures

5. Programming & Development Tools

• Strong C programming and Data Structures
• GCC, Make, scripting, Git, SVN, CVS, Perforce, and ClearCase
• XR_dev and NX-OS development environments
• Jira

6. Debugging & Diagnostics

• GDB, addr2line, Wireshark, and core dump analysis
• System-level debugging, packet tracing, performance profiling, and root-cause analysis

Experience & Qualifications

• Strong experience in data-path development, silicon-based networking, or embedded networking software.
• Proven hands-on experience with networking protocols, packet processing, and performance optimization.
• Experience working with Broadcom DNX architecture is highly desirable.
• Demonstrated ability to lead engineering teams, drive technical decisions, and deliver complex software projects.

• Experience managing the complete SDLC, from requirements and design through production deployment.

• Core Skills:
• Proficiency in C/C++ programming and debugging .
• Hands-on experience with Unix/Linux systems (user-space processes, kernel, socket programming, IPC).
• Strong analytical and problem-solving abilities .
• Ability to work effectively in teams with strong interpersonal skills.
• Good-to-Have Skills:
• Knowledge of Internet Protocols (TCP/UDP, IPv4/IPv6).
• Familiarity with Service Provider Technologies (Access, Aggregation, Metro, Mobile Backhaul).
• Exposure to Networking Protocols (L2/L3, QoS/CoS, ACLs, Firewalls).
• Experience with XGS/DNX families (Jericho, Jericho2) is a plus.