SonicWall is a cybersecurity forerunner with more than 30 years of expertise and is recognized as a leading partner-first company, ensuring our partners and their customers are never alone in the fight against cybercrime. With the ability to build, scale and manage security across the cloud, hybrid and traditional environments in real-time, SonicWall provides relentless security against the most evasive cyberattacks across endless exposure points for increasingly remote, mobile and cloud-enabled users. With its own threat research center, SonicWall can quickly and economically provide purpose-built security solutions to enable any organization—enterprise, government agencies and SMBs—around the world. For more information, visit www.sonicwall.com or follow us on Twitter, LinkedIn, Facebook and Instagram.
About the Role
SonicWall is looking for a Principal Software Engineer to own the technical direction and hands-on development of our Content Filtering Service (CFS) server platform — a high-throughput,



multi-threaded C++17 system that SonicWall firewalls worldwide rely on in real time to categorize URLs and enforce content filtering policies.
This is a heavily hands-on role. You will write and own production code daily, set technical direction, drive the roadmap, and mentor senior engineers — all while remaining deeply involved in the code itself. You will also be the primary bridge between the India-based engineering team and US-based management, requiring robust communication and the ability to work effectively across time zones.
Responsibilities
Write, review, and own production C++ code across the server platform: the URL rating server, the cloud categorization relay server, and the shared common libraries.
Drive security hardening of the binary UDP protocol, including encryption key management and protocol integrity.
Continuously improve code quality: modernize memory ownership patterns, improve concurrency safety, and reduce technical debt.
Set coding standard

📌 Principal Software Engineer — Content Filtering Platform (Pune)
🏢 SonicWall
📍 Pune