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. Extensive experience in data-plane develo

📌 Senior network security software engineer (Maharashtra)
🏢 Persistent Systems
📍 Maharashtra