Software Engineer, Hybrid, Milpitas, CA

life insurance, vision insurance, parental leave, paid holidays, sick time, 401(k)

United States, California, Milpitas

Oct 16, 2026

The application window is expected to close on: 10/26/2026

Cisco's Catalyst Engineering - IOS-XE Infrastructure engineering team is at the heart of powering the world's most critical enterprise networks. As a Software Engineer, you will design, develop, and deliver high-performance, resilient software infrastructure aligned with our multi-year technology roadmap.

In this role, you will apply Cisco's Design Thinking Principles-focusing on architectural simplification, superior user and developer experience, and bulletproof security. You will collaborate closely with product managers, system architects, and cross-functional engineering teams to translate complex networking requirements into scalable, elegant software solutions.

• Architect & Build:
  Design, code, test, and maintain high-scale, reliable software components and features within the IOS-XE infrastructure ecosystem.
• Feature Ownership:
  Lead the technical design, effort estimation, and end-to-end execution of small-to-medium features from concept through production release.
• Code Quality & Best Practices:
  Write clean, modular, and well-tested code (unit and integration tests), enforce secure coding standards, and conduct thorough peer code reviews.
• System Reliability & Triage:
  Troubleshoot and resolve complex software defects during development and in production environments; participate in root-cause analysis (RCA) and postmortems to continuously improve system resilience.
• Documentation & Knowledge Sharing:
  Author technical design specifications, contribute to customer-facing documentation, and share architectural insights across teams through tech talks, presentations, and design reviews.

• Bachelor's Degree in Computer Science or a related area, combined with 5 years of a related experience, or Master's Degree in Computer Science or a related area, combined with 3 years of related experience, or a PhD with 0 equivalent related work experience.
• Programming
  
  Languages:
  
  Python and C/C++ or similar object-oriented language.
• Operating Systems:
  Linux/Unix.
• AI Coding tools such as Codex, Copilot, or similar.
• Core Software Fundamentals:
  Data structures, algorithms, operating system concepts, and object-oriented / modular software design.
• Software Development Lifecycle (SDLC):
  Experience developing in an Agile/Scrum environment with robust CI/CD, version control (Git), and automated testing methodologies.

• Embedded systems, or networking infrastructure (L2/L3 protocols, data plane/control plane architectures).
• Infrastructure & Scale:
  Building software for high-throughput, low-latency, distributed, or multithreaded systems.
• Security-First Mindset:
  Secure coding practices, threat modeling, and defensive programming.

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.

Message to applicants applying to work in the U.S. and/or Canada:
The starting salary range posted for this position is $ to $ and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits.

Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process.

U.S. employees are offered…