Software Engineer

The application window is expected to close on: Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. The application window is expected to close on 03/13/2026. Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This is an onsite role and will require working out of the San Jose, CA office location. Meet the Team Cisco Silicon One is the center of Cisco’s ASIC design and is driving the development of next-generation network devices for the AI/ML era. Our outstanding team works in a startup atmosphere within a stable and leading corporate environment, and our design center hosts all silicon Hardware and Software development fields under one roof.  Our devices are crafted for universal adaptability, delivering high speed without sacrificing programmability, buffering, power efficiency, scale, or feature flexibility. The Cisco Silicon One team develops breakthrough silicon products.  We enable the use of these innovative products in the fast-paced world of Open Standards, Open Networking, and massively Scalable Cloud Data Centers. If you want to work with amazing people and groundbreaking customers developing the next generation of world-class products, join us. Your Impact We are seeking a dynamic individual to join our small but influential team, bringing experience with SONiC-NOS and tools like WireShark and network protocol analyzers. In this role, you’ll have the opportunity to expand your expertise in cutting-edge Cisco infrastructure products while contributing as a collaborative teammate with strong communication skills and a positive attitude. If you are someone who enjoys self-learning, is eager to embrace new challenges, and can quickly adapt to new domains, we’d love to have you on board. You will be working very closely with internal engineering teams including Software, Hardware, and the Systems Software team and external partners/vendors/customers.  Develop, Analyze and debug Cisco’s next generation Silicon One Software. Interact and work closely with Cisco System product development teams to develop and debug datapath applications. Interact and work closely with external partners, vendors, and customers to develop, debug and support Silicon One software. Work multi-functionally to drive the SW/HW system integration and testing. Work on networking protocols for switch/router and infrastructure products. Modify and add new and specific software enhancements. Contribute to adding more tests and debugging capabilities to ensure solution and system quality. Translate specialized knowledge of ASIC innovative architecture to Cisco product development teams. Provide guidance and support (including documentation) for Silicon One Customers. Contribute to the next generation of leading infrastructure products. Minimum Qualifications Bachelor of Science EE/CE combined with 7+ years of related experience or Master of Science EE/CE combined with 4+ years of related experience. Prior expertise in software development and integration while utilizing one or more of the following languages: C++, Python. Prior expertise in L2 switching/networking; and with hands-on experience in platform solutions and network topologies. Experience developing and debugging in a Linux environment. Prior working experience with system wide development, testing, and debugging.  Preferred Qualifications Working knowledge of GDB/PDB and debugging application and kernel drivers. Expertise in forwarding protocols (bridges/routers). Experience with traffic generators (i.e. - IXIA or Spirent). Experience with High Speed Serdes, MAC ports, and PRBS. Experience working with ANLT analyzers. #WeAreCisco where every individual brings their unique skills and perspectives together to pursue our purpose of powering an inclusive future for all. Our passion is connection—we celebrate our employees’ diverse set of backgrounds and focus on unl ... (truncated, view full listing at source)