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Software Dev Principal Engineer - Wireless Software Development (WLAN)
Responsibilities
- Lead the integration and optimization of Wireless LAN kernel drivers within high‑performance embedded platforms powering SonicWall Next‑Generation Firewalls (NGFW), ensuring seamless operation, stability, and throughput.
- Design, implement, and enhance dataplane components, contributing to fast‑path packet processing and performance‑critical features within the NGFW architecture.
- Collaborate closely with cross‑functional teams—including platform, networking, security, and QA—to drive feature development, align on design decisions, and deliver key product milestones.
- Own complex debugging, root‑cause analysis, and performance tuning, especially for wireless, networking, and dataplane subsystems affecting system‑level behavior.
- Contribute to innovation initiatives, supporting rapid prototyping, evaluation of emerging technologies, and the introduction of next‑generation capabilities into the NGFW product line.
- Influence system architecture and long‑term technical strategy, driving improvements in scalability, performance, reliability, and maintainability of WLAN and dataplane components.
Requirements
- 10+ years of hands‑on experience in C/C++ systems‑level software development, with the ability to build multi‑threaded, high‑performance, low‑latency distributed systems.
- Deep expertise in Wireless LAN technologies, including:
- Development of Linux kernel WLAN drivers and associated user‑space modules
- Strong working knowledge of IEEE 802.11a/b/g/n/ac/ax standards
- Strong networking fundamentals, including:
- Layer 2 and Layer 3 concepts
- VLANs, Access Control Lists (ACLs), SNMP
- Implementation and enforcement of wireless security mechanisms such as WPA2/WPA3, IEEE 802.1X, MAC‑based filtering, and guest‑network access policies
- Experience with fast‑path dataplane and packet‑processing frameworks, such as DPDK, ODP, or other high‑speed forwarding pipelines is a significant value addition.
- Solid understanding of OS internals, including memory management, concurrency models, threading primitives, and network stack internals.
- Excellent debugging and performance‑tuning skills, with the ability to analyze and resolve complex system‑level issues.
- Strong communication skills and the ability to collaborate across cross‑functional engineering teams.
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SonicWall is an equal opportunity employer.
We are committed to creating a diverse environment and are an equal opportunity employer. All qualified applicants receive consideration for employment without regard to race, color, ethnicity, religion, sex, gender, gender identity and expression, sexual orientation, national origin, disability, age, marital status, veteran status, pregnancy, or any other basis prohibited by applicable law.
At SonicWall, we pride ourselves on recruiting a diverse mix of talented people and providing active security solutions in 100+ countries.
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What We Do
SonicWall has been fighting the cyber-criminal industry for over 25 years defending small, medium-size businesses and enterprises worldwide. Backed by research from the Global Response Intelligent Defense (GRID) Threat Network, our award-winning real-time breach detection and prevention solutions, coupled with the formidable resources of over 10,000 loyal channel partners around the globe, are the backbone securing more than a million business and mobile networks and their emails, applications and data. This combination of products and partners has enabled a real-time cyber defense solution tuned to the specific needs of the more than 500,000 global businesses in more than 215 countries and territories.
