Software Engineer- AI-Python Automation

The application window is expected to close on: 02/17/2026 Job posting may be removed earlier if the position is filled or if a sufficient number of applications are received. This is a hybrid role, located in San Jose, CA and requires being in the office 3+ days a week. Meet the Team Our team, DCN Switching, specializes in validating and automating next-generation network fabrics for AI-powered data centers. We drive performance, reliability, and innovation by testing critical protocols like RoCEv2 and NVMe over Fabrics on high-speed 400G Ethernet platforms. As a tight-knit group of top-tier engineers and architects, we bring diverse expertise across network, software, and AI infrastructure, fostering a collaborative and energetic work environment. The team’s work is pivotal to ensuring data center networks are robust and scalable for advanced AI workloads. Joining us means being at the forefront of cutting-edge technology, where your contributions directly impact the future of AI infrastructure. Your Impact Own the design and automation of performance testing for lossless Ethernet fabrics supporting AI networks. Develop and enhance Python-based automation frameworks to streamline test execution, result collection, and analysis for RoCEv2 and NVMeoF protocols. Configure and optimize Linux servers and high-speed NICs to maximize RDMA performance, directly influencing data center efficiency and reliability. Troubleshoot and tune network protocols to ensure lossless behavior, reducing packet drops and congestion for critical workloads. Deliver comprehensive documentation and test reports to guide engineering and management decisions, shaping next-generation AI infrastructure. Minimum Qualifications Bachelor’s degree in Computer Science, Engineering, or a related field, with 4-5 years of experience in network test and automation environments Experience in testing QOS (PFC/ECN), RoCEv2 on switches and server NICs Experience in testing BGP/IGP routing protocol on IP or VxLAN fabrics Linux/Ubuntu system administration and performance tuning experience Experience in network automation using python and shell scripting Preferred Qualifications Exposure to AI or GPU cluster interconnect testing with RoCEv2 NIC tuning for optimal GPU performance Experience in generating traffic using Spirent/Ixia and relevant software api’s Familiarity with Cisco Nexus 9000 series switches Working knowledge of automation tools like Ansible and Terraform Experience with network telemetry and performance monitoring tools (SNMP, gNMI, Prometheus) Knowledge of open config and yang models is a plus Knowledge of VxLAN fabric is a plus Strong collaboration and documentation skills 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. Message to applicants applying to work in the U.S. and/or Canada: The starting salary range posted for this position is $152,500.00 to $219,200.00 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, cer ... (truncated, view full listing at source)