C++ Network Security

Persistent; Pune District; Hybrid; INR 2,800,000 - 3,800,000; Full time

Benefits offered by this job

Competitive salary

Hybrid work model

Growth opportunities

Education sponsorship

Health check-ups

Insurance coverage

Job summary

Persistent in Pune seeks a C++ Network Security Engineer with 7+ years of experience to design, develop, and optimize secure networking solutions for enterprise‑grade systems.

You will work on high‑performance data planes, DPI and IPS, Linux kernel‑level programming, and cybersecurity defenses, with a focus on scalable, HA architectures and real‑time debugging using GDB, Wireshark and Valgrind in a hybrid work setting, collaborating with cross‑functional teams and providing on‑call support.

Qualifications

• Strong expertise in C/C++ with systems programming in Linux/embedded environments.
• Experience with networking protocols, security features and data-path optimization.
• Knowledge of DPI/IPS and cybersecurity concepts for enterprise systems.

Responsibilities

• Design, develop and optimize secure networking solutions for enterprise-grade systems.
• Work on high-performance data planes and packet processing architectures.
• Implement security features such as DPI, IPS, and firewall policies.
• Troubleshoot and optimize network performance using debugging tools.

Skills

C++ programming

Linux kernel

High-performance networking

Packet processing

Cybersecurity

Tools

GDB

Wireshark

Valgrind

DPDK

Job description

About Position:

We are looking for a C++ Network Security Engineer with 7+ years of experience to join our team in Pune. The ideal candidate should have strong expertise in C++, Network Security, and Linux kernel-level programming, with hands‑on experience in high‑performance networking, cybersecurity solutions, and packet processing technologies. The role involves designing, developing, and optimizing secure networking solutions for enterprise‑grade systems.

• Role: C++ Network Security
• Location: Pune
• Experience: 7+ Years
• Job Type: Full‑Time Employment

What You'll Do:

• Expert C/C++ Programming: Advanced systems programming skills in C/C++ within Linux/embedded kernels for high‑performance networking.
• L3‑L7 Networking Protocols: Deep development experience with TCP/IP, Routing, Switching, and security protocols (SSL/TLS, IPSec).
• Data Plane & Packet Processing: Expertise in multi‑core architecture, packet processing engines, and optimizing data path performance (DPDK/UDK).
• Cybersecurity Defense Modules: Background in developing security features like DPI (Deep Packet Inspection), IPS, Malware Protection, and Firewall policies.

Expertise You'll Bring:

• Working experience on IPSec, Security vulnerabilities Linux network packages, L2/L3 level deep knowledge in R&S, Linux TCP/IP L2/L3 network stack implementation, ODA/DPDK at library implementation level)
• System Architecture & Performance: Proven ability to design scalable, high‑throughput systems including High Availability (HA) and clustering.
• Troubleshooting & Debugging: Proficiency using GDB, Wireshark, and Valgrind to solve complex memory leaks and network bottlenecks in real‑time environments.

Benefits:

• Competitive salary and benefits package
• Culture focused on talent development with quarterly growth opportunities and company-sponsored higher education and certifications
• Opportunity to work with cutting‑edge technologies
• Employee engagement initiatives such as project parties, flexible work hours, and Long Service awards
• Annual health check‑ups
• Insurance coverage: group term life, personal accident, and Mediclaim hospitalization for self, spouse, two children, and parents

Values-Driven, People-Centric & Inclusive Work Environment:

Persistent is dedicated to fostering diversity and inclusion in the workplace. We invite applications from all qualified individuals, including those with disabilities, and regardless of gender or gender preference. We welcome diverse candidates from all backgrounds.

• We support hybrid work and flexible hours to fit diverse lifestyles.
• Our office is accessibility-friendly, with ergonomic setups and assistive technologies to support employees with physical disabilities.
• If you are a person with disabilities and have specific requirements, please inform us during the application process or at any time during your employment

"Persistent is an Equal Opportunity Employer and prohibits discrimination and harassment of any kind."