Senior Principal Architect – Firewall /Network Security - C/C++ - 12+ yrs

Role Overview

We are looking for a Software Architect to define, design, and guide the development of our next-generation Firewall and Network Security platform. You will play a key role in shaping the technical direction, architecture, and scalability of core product components — including the data plane, control plane, and management layers.

This role demands a deep hands-on understanding of systems software, product development, networking, and performance optimization, combined with the ability to mentor teams and influence design decisions across multiple modules.

Key Responsibilities:

Architecture & Design

• Own the system and component architecture for one or more major subsystems (e.g., Data Plane, Control Plane, Policy Engine, Management/UI).
• Design for scalability, throughput, and reliability across distributed and high-performance systems.
• Evaluate and select technologies, frameworks, and algorithms aligned with performance and maintainability goals.
• Collaborate with other architects and the Director to ensure architectural consistency across the platform.
• Translate product and customer requirements into detailed technical designs and interfaces.

Technical Leadership

• Review design documents, APIs, and code for architectural alignment and quality.
• Guide engineers in implementing robust, modular, and maintainable code.
• Lead performance profiling, debugging, and root-cause analysis of complex system issues.
• Establish design patterns, coding standards, and system documentation practices.
• Serve as a technical advisor to engineering managers and senior engineers during implementation.

Cross-Functional Collaboration

• Work closely with Product Management to evaluate technical feasibility of new features.
• Coordinate with QA, DevOps, and Security teams to ensure testability, observability, and release readiness.
• Support customer escalations when deep technical insight is required.

Required Skills & Experience

• 12+ years of experience in C/C++ systems software development.
• Strong expertise in network security concepts (TCP/IP, IPsec, VPN, routing, NAT, DPI, etc.).
• Proven experience designing multi-threaded, high-performance, and low-latency systems.
• Deep understanding of OS internals, memory management, concurrency, and networking stacks.
• Experience with DPDK, Netfilter or equivalent frameworks.
• Excellent analytical, debugging, and performance-tuning skills.
• Demonstrated ability to write and review detailed design and architecture documents.
• Strong communication skills and ability to collaborate across teams and roles.

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