Principal Engineer

Ericsson; Bengaluru; On-site; INR 4,000,000 - 7,000,000; Full time

Job summary

Ericsson GmbH in Bengaluru seeks a Principal Wi‑Fi Firmware Architect to own the complete WiFi firmware architecture, drive integration, and provide technical leadership across software, hardware interfaces, and platform components. This is a ground‑up opportunity to define architecture and deliver carrier‑grade, high‑reliability platforms deployed globally.

You will design and implement firmware for networking routers with WiFi, collaborate with hardware teams, and advance OpenWRT/Yocto

Qualifications

• 15+ years of Wi‑Fi experience with architectural ownership.
• Strong programming in Python and C.
• Proficient with Linux operating systems, drivers and scripting.
• Experience with ARM‑based SoCs or embedded platforms.
• Good knowledge of 802.11 standards and security features.
• Experience integrating WiFi SoCs from leading vendors.
• WiFi performance tuning and troubleshooting expertise.

Responsibilities

• Design, develop, and maintain firmware for networking routers featuring WiFi capabilities.
• Collaborate with hardware engineers to bring up new products and support custom features.
• Implement and optimize Layer 2/3 networking protocols, traffic management, and routing.
• Develop and maintain Linux‑based embedded systems, including bootloaders, kernels, and drivers.
• Contribute to OpenWRT or Yocto integration into production firmware.
• Analyze and troubleshoot issues across hardware, firmware, and software layers for stability and performance.
• Collaborate with cross‑functional teams to define and deliver features and stay current with networking technologies.

Skills

Wi‑Fi architecture ownership

Python

C

Linux

Networking fundamentals

ARM-based SoCs

802.11 standards

hostapd

OpenWRT/Yocto

Tools

OpenWRT

Yocto

Device drivers

Job description

Join our Team

About this opportunity:

We are seeking a highly skilled Firmware Engineer with specialization in WiFi domain to join our team at Ericsson and help develop the next generation of networking hardware. As a Principal Wi‑Fi Firmware Architect, you will own the complete WiFi firmware architecture, drive integration strategy, and provide technical leadership across Wi‑Fi software, hardware interfaces, and platform components. This is a ground‑up opportunity to define architecture, influence long‑term technology direction, and deliver carrier‑grade, high‑performance, high‑reliability platforms deployed at a global scale. If you're passionate about embedded development and excited to solve real‑world challenges in connectivity (esp. WiFi), scalability, and network efficiency, this is your opportunity to make a direct impact in a dynamic, high‑tech environment.

What you will do:

• Design, develop, and maintain firmware for networking routers featuring WiFi capabilities
• Work closely with hardware engineers to bring up new products and support custom hardware features.
• Implement and optimize Layer 2/3 networking protocols, traffic management, and routing features.
• Develop and maintain Linux‑based embedded systems, including bootloaders, kernel modules, and device drivers.
• Contribute to the integration of open‑source platforms such as OpenWRT or Yocto into production firmware.
• Analyze and troubleshoot issues across hardware, firmware, and software layers to ensure system stability and tune the system for performance.
• Collaborate with cross‑functional teams including software developers, QA, and product managers to define and deliver features.
• Stay current with networking technologies, standards, and best practices, and apply them to product development.

The skills you bring:

• 15+ years of Wi‑Fi experience with architectural ownership
• A strong foundation in programming, predominantly Python and C.
• Strong knowledge of Linux operating systems, including device drivers, shell scripting and system‑level concepts.
• Understanding of computer networking fundamentals (e.g., IP/TCP/UDP, Ethernet, routing and switching).
• Exposure to embedded platforms such as ARM‑based SoCs, microcontrollers, or development boards.
• Good knowledge of 802.11 standards (WiFi 5/6/6E/7), WAP2/WAP3‑Enterprise, 802.1X/EAP, etc.
• Good knowledge of Linux WiFi stack and daemons like hostapd
• Have worked on MAC layer, PHY interaction, rate control algorithms, power management and security features
• Have integrated WiFi SoCs from leading vendors (eg. Qualcomm, Broadcomm, Mediatek)
• Have conducted WiFi performance tuning (throughput, latency, airtime fairness, RF