Principal Software Engineer - DPDK experience is a must

Sonicwall; Pune District; Hybrid; INR 5,000,000 - 9,000,000; Full time

Job summary

SonicWall is seeking a highly experienced systems-level C/C++ engineer to advance dataplane technology for NGFW platforms. You will design and optimize high-throughput, low-latency packet processing in hybrid networking environments, working across platforms, networking, security, and QA teams.

The ideal candidate has 10+ years in C/C++ at the networking or embedded level, strong knowledge of DPDK/ODP/OFP, and a proven ability to drive architectural decisions and performance improvements for

Qualifications

• 10+ years in C/C++ systems-level development for networking or embedded platforms.
• Experience with high-performance packet-processing frameworks (DPDK/ODP/OFP).
• Strong understanding of L3/L4 networking protocols and IPv4/IPv6.
• Proven ability to build multi-threaded, low-latency, high-throughput systems.

Responsibilities

• Lead development and optimization of a key dataplane module for SonicWall NGFW platforms.
• Design, implement, and enhance high-performance packet-processing paths using DPDK/ODP/OFP or similar frameworks.
• Diagnose and resolve complex performance, throughput, and latency issues in the dataplane.
• Collaborate with platform, networking, security, and QA teams to deliver features and product improvements.
• Prototype and evaluate new dataplane technologies, contributing to next-gen NGFW capabilities.
• Influence architectural decisions, scalability strategies, and long-term technical direction for dataplane components.

Skills

C/C++ systems-level

DPDK/ODP/OFP

L3/L4 networking

Multi-threading

Performance tuning

OS internals

Debugging

Cross-functional collaboration

Tools

DPDK

ODP

OFP

Job description

For more than 30 years, SonicWall has delivered a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams consolidate network security, endpoint security, security service edge (SSE), and threat response across hybrid environments. By bringing connected technology, real-time threat intelligence, automation, and expert services together, SonicWall helps organizations simplify security operations, achieve better security outcomes, and lower total cost of ownership. Backed by a global ecosystem of more than 17,000 partners, SonicWall delivers enterprise-grade protection built for SMB and mid-market realities.

For more information, visit www.sonicwall.com or follow us on X, LinkedIn, Facebook, and Instagram.

Responsibilities

• Lead development and optimization of a key dataplane module for SonicWall NGFW platforms.
• Design, implement, and enhance high-performance packet-processing paths using DPDK/ODP/OFP or similar frameworks.
• Diagnose and resolve complex performance, throughput, and latency issues in the dataplane.
• Collaborate with platform, networking, security, and QA teams to deliver features and product improvements.
• Prototype and evaluate new dataplane technologies, contributing to next-gen NGFW capabilities.
• Influence architectural decisions, scalability strategies, and long-term technical direction for dataplane components.

Requirements

• 10+ years of experience in C/C++ systems-level development for networking or embedded platforms.
• Strong hands-on expertise in DPDK, ODP, OFP, or similar high-performance packet-processing frameworks.
• Solid understanding of L3/L4 networking protocols, including IPv4/IPv6, routing, NAT, VPN/IPsec/SSL, and related protocols.
• Proven ability to build multi-threaded, low-latency, high-throughput systems.
• Strong knowledge of OS internals, memory and concurrency models, and network stack behaviour.
• Excellent debugging, performance tuning, and system analysis skills.
• Strong communication and teamwork skills, with the ability to drive cross-functional technical discussions.

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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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