Senior Software Engineer - C/C++ Networking & Security

cisco· 123 Cisco Systems (India) Private Limited
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📍 Bangalore, IndiaFull time

About this role

We, Security, Solutions and SDWAN Platform Infra, are a team passionate about building next-generation secure connectivity solutions across VPN, cryptography, PKI, and SD-WAN. Across on-prem, cloud, and SSE/SIG environments, we deliver secure, scalable systems and apply AI intelligence to improve security posture, automate certificate lifecycle management, optimize performance, and enable predictive monitoring at scale. Our work spans SDWAN Platform Infrastructure, crypto infrastructure, PKI systems, VPN technologies, SD-WAN secure fabric, and post-quantum security, powering millions of secure connections globally.

We are looking for Technical Lead to join team. You will be part of team building secure networking solutions in a high-impact, fast-paced environment. Your work will help build scalable, secure systems that enable site-to-site and remote access VPNs, certificate-driven trust models, cloud connectivity, and AI-enhanced secure SD-WAN architectures including initiatives in post-quantum security.

Your Impact

  • Lead the design and development of secure networking solutions across VPN (IPSec/IKEv2), PKI, cryptography, and SD-WAN Platform Infra
  • Architect systems that ensure high scalability, resiliency, and security posture
  • Drive multi-functional teamwork to deliver critically significant features
  • Improve performance, reliability, and operational excellence of distributed systems at scale
  • Influence technical direction and execution for high-impact projects that improve scalability, resiliency, security posture, and customer experience
  • Drive innovation in next-generation secure networking initiatives
  • Take complete ownership from conception to production release by demonstrating your ability to influence, facilitate, and work multi-functionally across teams
  • Drive the adoption of AI-assisted tools such as Codex to improve engineering productivity, automate development workflows, accelerate debugging, and enhance software quality across the team
  • Lead, mentor, and spread standard processes to other specialists on the team

Minimum Qualifications

  • 9+ years of deep technical experience across networking and security domains, large-scale, production-grade systems
  • Strong programming expertise in C/C++
  • Deep understanding of networking concepts (TCP/IP, routing, distributed systems)
  • Validated experience in system design and architecture for scalable, reliable systems
  • Track record of leading critical projects end-to-end
  • Experience in embedded Linux software development
  • Ability to influence technical direction across teams
  • Good communication skills with the ability to simplify complex technical concepts

Preferred Qualifications

  • Experience with IPSec VPN technologies
  • Embedded Linux system development, Yocto-based build system expertise, and cloud platform integration skills.
  • Understanding of PKI systems and certificate lifecycle management
  • Background in network security, SD-WAN, or secure connectivity
  • Exposure to cryptographic systems and protocols
  • Experience demonstrating AI-assisted development tools to improve team productivity
  • Exposure to post-quantum cryptography (PQC) or cryptographic agility
  • Experience chipping in to networking/security standards (RFCs)

#sdwanhiring

Why Cisco? 

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. 

We are Cisco, and our power starts with you. 

Frequently Asked Questions

Is the salary disclosed for the Senior Software Engineer - C/C++ Networking & Security position at cisco?
The salary for this Senior Software Engineer - C/C++ Networking & Security role at cisco is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Software Engineer - C/C++ Networking & Security position at cisco located?
This Senior Software Engineer - C/C++ Networking & Security role at cisco is based in Bangalore, India. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Software Engineer - C/C++ Networking & Security role at cisco full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Software Engineer - C/C++ Networking & Security role in the 123 Cisco Systems (India) Private Limited department at cisco.
Which team or department does the Senior Software Engineer - C/C++ Networking & Security at cisco belong to?
This Senior Software Engineer - C/C++ Networking & Security position is part of the 123 Cisco Systems (India) Private Limited department at cisco. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Senior Software Engineer - C/C++ Networking & Security position at cisco?
Click the "Apply Now" button on this page. You will be redirected to cisco's official application portal hosted on workday where you can submit your application directly.
When was the Senior Software Engineer - C/C++ Networking & Security job at cisco posted?
This Senior Software Engineer - C/C++ Networking & Security position at cisco was posted on Jun 3, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Software Engineer - C/C++ Networking & Security
cisco
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