OpenWrt Software Architect

Techstar Group; Hyderabad; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

Techstar Group in Hyderabad is seeking a senior embedded systems engineer to lead OpenWrt-based firmware design for operator deployments. You will architect carrier-grade networking stacks and develop scalable Linux-based CPE environments.

Role requires deep expertise in TR-181/TR-098 models, PBR, multi-WAN, and VLAN configurations, with strong debugging and collaboration skills. On-site opportunity in Hyderabad with a focus on performance optimization.

Qualifications

• Strong expertise in OpenWrt build system customization.
• Hands-on experience in building operator-grade firmware distributions.
• Advanced proficiency in C/C++ with focus on performance and resource optimization.

Responsibilities

• Lead the design, development, and customization of OpenWrt-based firmware for operator-specific deployments.
• Architect and implement high-performance networking stacks for carrier-grade devices.
• Develop scalable and modular embedded Linux systems for complex CPE environments.
• Implement and manage TR-181 / TR-098 data models and USP (TR-369) protocols.
• Optimize L2/L3 forwarding performance using hardware offloading and VLAN configurations.
• Design and implement Multi-WAN, failover strategies, and policy-based routing (PBR).
• Enhance multicast performance using IGMP/MLD snooping and proxy mechanisms.
• Perform deep debugging of system-level issues such as kernel panics, memory leaks, and race conditions.
• Analyze and troubleshoot network issues using tools like tcpdump and Wireshark.
• Collaborate with cross-functional teams to define system architecture and integration strategies.
• Mentor and guide engineering teams on best practices and technical decision-making.

Skills

OpenWrt Embedded Systems

C/C++

Networking Protocols

IPv6 Dual-Stack

Linux Networking

Multi-WAN

Policy-Based Routing

Troubleshooting

Tools

tcpdump

Wireshark

Job description

Key Responsibilities

• Lead the design, development, and customization of OpenWrt-based firmware for operator-specific deployments.
• Architect and implement high-performance networking stacks for carrier-grade devices.
• Develop scalable and modular embedded Linux systems for complex CPE environments.
• Implement and manage TR-181 / TR-098 data models and USP (TR-369) protocols.
• Optimize L2/L3 forwarding performance using hardware offloading and VLAN configurations.
• Design and implement Multi-WAN, failover strategies, and policy-based routing (PBR).
• Enhance multicast performance using IGMP/MLD snooping and proxy mechanisms.
• Perform deep debugging of system-level issues such as kernel panics, memory leaks, and race conditions.
• Analyze and troubleshoot network issues using tools like tcpdump and Wireshark.
• Collaborate with cross-functional teams to define system architecture and integration strategies.
• Mentor and guide engineering teams on best practices and technical decision-making.

Required Skills Experience

OpenWrt Embedded Systems

• Strong expertise in OpenWrt build system customization and package management.
• Hands-on experience in building operator-grade firmware distributions.

Programming

• Advanced proficiency in C/C++ with focus on performance and resource optimization.

Networking Protocols

• Strong experience in IPv4/IPv6 dual-stack environments
• Knowledge of:
• DHCPv4 / DHCPv6
• SLAAC Prefix Delegation (PD)
• IPv6 transition technologies (MAP-T, MAP-E, DS-Lite)

Networking Concepts

• Deep understanding of:
• Linux Bridge
• VLAN (802.1Q / QinQ)
• Routing and forwarding architectures

Traffic Routing

• Experience with:
• Multi-WAN configurations
• Failover mechanisms
• Policy-Based Routing (PBR)