C++ Firewall & Network Security Developer

5 years

18 Lacs

Posted:2 weeks ago| Platform: GlassDoor logo

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Work Mode

On-site

Job Type

Full Time

Job Description

CTC: up to 18 LPA

Location: Noida

Experience: 5–7 years

Job Type: Full-time

About the Role:

The ideal candidate will have deep expertise in C++ systems programming, network protocol stacks, and real-time packet processing. You will be responsible for designing and implementing high-performance firewall components, including packet filtering, DPI, and policy enforcement.

Key Responsibilities:

  • Develop high-performance network security solutions using C++17/20.
  • Design and implement firewall modules for packet filtering, connection tracking, and DPI.
  • Work with core networking protocols (TCP/IP, HTTP/S, TLS) and real-time packet processing using raw sockets or libraries like libpcap.
  • Integrate and use OpenSSL for secure communication and TLS inspection.
  • Optimize code for latency and throughput using multithreading and concurrency techniques.
  • Manage network configurations on Linux/Unix systems and work with tools like iptables.
  • Collaborate with teams to expose APIs using REST or gRPC.

Required Skills & Experience:

  • 5+ years of experience in modern C++ (C++11/14/17/20).
  • Strong foundation in network protocols (OSI model) and TCP/IP socket programming.
  • In-depth knowledge of TLS/SSL and OpenSSL APIs.
  • Experience with multithreading and performance optimization.
  • Proficiency in Linux/Unix internals and system diagnostics.

Preferred Skills:

  • Experience with firewalls, intrusion detection, or NGFW.
  • Knowledge of network security tools like nDPI, Netfilter/iptables, or eBPF.
  • Familiarity with gRPC, REST APIs, and high-availability systems.

Apply Now!

Job Type: Full-time

Pay: Up to ₹1,800,000.00 per year

Application Question(s):

  • What is your current CTC?

Work Location: In person

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