Software Engineering Technical Leader | C, Networking L2/L3, TCP/IP, Linux System Programming |18+years

Duo Security

Duo Security

Software Engineering, IT
Posted on Dec 16, 2025

Meet the Team

We deliver common software modules for Cisco Network Operating System (NOS) IOS XR and work on routing protocol software, transport protocols and critical infra for overlay services like VXLAN, EVPN. We are responsible for layers starting with the kernel and Operating System, core infrastructure such as IPCs, databases, pub-sub mechanisms, state management, routing/forwarding infrastructure, management interfaces like CLI or specific programmable APIs, security and services like 3rd party application hosting. We employ some of the finest talents in the industry to architect, design and develop products and solutions for world’s largest web scalers, cloud companies and SPs.

Your Impact

As a key member of Cisco IOS XR Platform Independent Software Development team, you will:
* Collaborate with account teams, product management, other engineering team, architect and design sophisticated product requirements/challenges.
* Demonstrate strong technical leadership via innovative solutions to customer problems including successful deployment.
* Partner with other senior architects across Cisco on new opportunities and broad initiatives.
* Be in the forefront of development of complex projects, working with managers for detailed planning and execution strategy, identify intermediate, well-defined achievements.
* Act as a mentor and develop strong technical talent, leading towards development of long-term expertise, technical competency.
* Do innovation within the team and chip in to Cisco’s intellectual property.
* Strengthen product quality by identifying hot spots and deriving solution for the same.
* Keep up to date with technology trends relevant to the group, adopt newer technologies and rapid prototyping to demonstrate.

Minimum Qualifications

* BE/B.Tech or higher degree in CS/EC or equivalent with 18+ years in the networking or equivalent domains
* An accomplished technical leader with experience in building resilient, scalable, and secure platforms using opensource and commercial software
* Extensive experience in architecting and design of complex networking systems and various software engineering principles
* In-depth knowledge and understanding of routing and switching technologies, including SR, SRv6, EVPN, MPLS, VXLAN, various L2/L3 protocols
* Expert and experience in C/C++, Python, Linux system programming, process and memory management, multithreading

Preferred Qualifications

* You believe in codifying and automation (infra as code) and have the approach that anything is possible till validated otherwise
* You are willing to explore unknowns quickly, be a sounding board and diligent consultant on wide range of product ideas
* Experience with kernel programming and open-source technologies is a plus

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.