Senior Software Engineer, DNS

The application window is expected to close on: 10/26/2026 This position will perform work that the U.S. government has specified can only be performed by a U.S. citizen on U.S. soil.   Meet the Team   The Cisco Common Platform Services (CCPS) organization is transforming how Cisco delivers software-as-a-service by providing a modern, consistent, and secure platform for all! With demonstrated ability, our global team brings innovative methodologies to building and managing hybrid cloud environments. We focus on platform management services, continuously evaluating infrastructure and operations to ensure efficiency and precision. Our expertise in IaaS and PaaS, combined with repeatable and portable delivery models, enables the rapid and secure deployment of applications.   Within CCPS, the Cloud Software & Solutions (CSS) group designs and develops cloud platforms with an emphasis on quality, stability, simplification, user experience, scalability, performance, and portability. We are looking for a DNS Engineer to join our team for the DNS engineering, automation, and continuous improvement of enterprise DNS platforms and services.

As a Software Engineer, you will help design, build, and evolve enterprise DNS architecture spanning authoritative and recursive DNS, forwarding, delegation, and service integrations. You will modernize the platform by improving provisioning, configuration management, validation, monitoring, and recovery through infrastructure as code and automation frameworks. Your work will strengthen the reliability, performance, security, and maintainability of critical DNS services at scale. Through global Tier 3 support, you will troubleshoot complex issues involving resolution behavior, zone design, DNSSEC, caching, delegation models, and integration dependencies. You will also collaborate with software, network, cloud, and security teams to deliver resilient DNS solutions for new services and platform changes.

Bachelor’s degree with 6+ years or Master’s degree with 4+ years of experience in software development, systems engineering, or cloud/platform engineering.   Experience designing, implementing, or operating DNS services, including authoritative and recursive DNS, delegation, forwarding, caching, and DNS record behavior.   Experience developing infrastructure automation using Python and tools such as Ansible, Terraform, or equivalent infrastructure-as-code technologies.   Experience administering Linux environments and diagnosing issues across DNS, networking, and distributed systems.   Experience using AI-assisted tools to automate routine tasks, support technical troubleshooting, and improve software or infrastructure engineering workflows.

Experience with DNSSEC, GSLB, Anycast DNS, and hybrid cloud DNS patterns.   Experience integrating DNS with IPAM, DHCP, cloud networking, and platform automation.   Familiarity with Kubernetes CoreDNS.   Familiarity with CI/CD, policy-based automation, and engineering validation frameworks.   Experience working in regulated, security-sensitive, or large enterprise environments.   CollabHiring 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,