Network/Security SME: Responsibilities
Design and develop control-plane and data-plane components for firewall/NGFW platforms (L3–L7).
Build high-performance packet processing systems using multi-core architectures (DPDK/ODP).
Develop and maintain management interfaces (CLI, APIs), secure access (SSH), logging, diagnostics, and telemetry.
Implement security features including SSL/TLS, IPSec, SAML authentication, PKI, and certificate lifecycle management.
Develop cybersecurity modules such as DPI, IPS, malware protection, and content filtering (URL categorization/reputation).
Drive scalable and secure system architecture, including HA, clustering, licensing frameworks, and secure coding practices.
Perform performance optimization, debugging, and troubleshooting using tools like GDB, Wireshark, and Valgrind.
Collaborate with cross-functional teams on security, architecture, and vulnerability remediation. Requirements




12+ years of experience in C/C++ systems programming on Linux/embedded platforms.
Robust expertise in L3–L7 networking protocols (TCP/IP, routing, switching, SSL/TLS, IPSec).
Proven experience in data-plane development and packet processing optimization.
Deep understanding of Linux/embedded OS internals, multithreading, and high-performance systems.
Hands-on experience with CLI/API development, logging frameworks, telemetry, and SSH-based management.
Solid knowledge of security architecture, including PKI, authentication, and certificate management.
Experience with firewalls, DPI, IPS, malware protection, and content filtering systems.
Solid debugging and troubleshooting skills in complex real-time settings.
Ability to design scalable systems and lead technical discussions.

📌 Network Firewall Security Development Architect Gurugram
🏢 Persistent Systems
📍 Gurugram