CiscoCisco Silicon One is seeking an experienced and highly motivated C++ Software Engineer to join the Compiler team of our Network Technology R&D organization, contributing directly to the evolution of next-generation networking products.
Our team builds firmware, SDKs, simulators, and compilers for the Cisco Silicon One architecture — the industry's first routing and switching silicon architecture unifying networking across all layers.
You will work on pioneering technology that powers the future of the Internet.
You will be part of a global team working on the newest generation of Cisco silicon, which will be integrated across the entire portfolio of Cisco devices.
You will collaborate with worldwide distributed R&D centers, gaining exposure to some of the most talented engineers in the networking industry.
We look for people who love technology and engineering—people who thrive on innovation, continuous learning, and challenging what's possible.
Design, implement, and test a state-of-the-art optimizing compiler for Cisco Silicon One
Evaluate and optimize code performance, including debugging, code generation improvements, and pipeline analysis
Develop, optimize, and enhance the compiler backend to fully leverage cutting-edge hardware capabilities
Solve complex resource management challenges across hardware pipelines
Design and implement new P4 language features that empower network application developers
Build and maintain the compiler toolchain for custom networking applications
Contribute to libraries, analysis tools, and supporting infrastructure
Collaborate with cross-functional hardware and software teams
Work closely with ASIC engineers on next-generation IC design, influencing hardware through compiler insights prior to tape-out
3+ years of experience developing or maintaining large-scale software projects
Bachelor's or Master's degree in Computer Science or related field
Strong skills in modern C++, software design, and debugging
Fluent in written and spoken English
Experience with compiler infrastructures (LLVM, MLIR)
Knowledge of compiler optimization (theoretical or practical)
Experience with Python, ANTLR, SWIG, or similar tools
Background in hardware/software co-design
Understanding of performance analysis and profiling techniques
Excellent analytical and problem-solving abilities
Motivated to learn, proactive, and comfortable working autonomously
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.
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