About Position:

We are seeking a highly experienced Senior Firewall/Network Security Software Engineer with 8+ years of expertise in C/C++ development for Linux and embedded systems. The role focuses on designing and developing next-generation firewall (NGFW) and cybersecurity solutions, including high-performance packet processing, network security, authentication systems, and advanced threat protection. The ideal candidate will have deep knowledge of networking protocols, security architectures, and scalable system design.

• Role: Senior Network Security Software Engineer
• Location: Pune
• Experience: Between 8 to 15 Years
• Job Type: Full Time Employment

What You'll Do:

• Design and develop control-plane and data-plane components for next-generation Firewall (NGFW) platforms across Layers 37.
• Build high-performance packet processing and traffic management systems using multi-core architectures such as DPDK and ODP.
• Develop and maintain management interfaces including CLI, APIs, SSH access, logging, diagnostics, and telemetry frameworks.




• Implement and enhance security technologies including SSL/TLS, IPSec, SAML, PKI, and certificate lifecycle management.
• Develop cybersecurity features such as Deep Packet Inspection (DPI), Intrusion Prevention Systems (IPS), malware protection, URL filtering, and content categorization.
• Architect scalable, secure, and highly available solutions with clustering, HA, licensing, and secure coding best practices.
• Optimize system performance and troubleshoot complex networking and security issues using tools such as GDB, Wireshark, and Valgrind.
• Collaborate with cross-functional engineering teams on architecture, security, product enhancements, and vulnerability remediation.

Expertise You'll Bring:

• 8+ years of hands-on experience in C/C++ systems programming on Linux or embedded platforms.
• Solid understanding of networking protocols across L3-L7, including TCP/IP, routing, switching, SSL/TLS, and IPSec.
• Exten

📌 Senior Network Security Software Engineer (Pune)
🏢 Persistent Systems
📍 Pune