Network Support Specialist - Sovereign Core

Skip to content IBM < Back to search results Network Support Specialist - Sovereign Core Mulhuddart, Dublin, Ireland Professional Email X LinkedIn Apply now Introduction At IBM Software, we transform client challenges into solutions. Building the world’s leading AI-powered, cloud-native products that shape the future of business and society. Our legacy of innovation creates endless opportunities for IBMers to learn, grow, and make an impact on a global scale. Working in Software means joining a team fueled by curiosity and collaboration. You’ll work with diverse technologies, partners, and industries to design, develop, and deliver solutions that power digital transformation. With a culture that values innovation, growth, and continuous learning, IBM Software places you at the heart of IBM’s product and technology landscape. Here, you’ll have the tools and opportunities to advance your career while creating software that changes the world. Your role and responsibilities Role Overview IBM Sovereign Core is shaping the future of cloud and AI, for governments, public institutions and highly regulated enterprises by placing sovereignty, governance, and trust at the center of the platform. As a Senior Customer Support Engineer in IBM Sovereign Core, you will serve as a key technical specialist responsible for supporting highly secure, sovereign cloud environments. deployed across on‑premises, partner‑operated, and fully isolated (air‑gapped) infrastructures, built on Red Hat OpenShift and integrated with IBM’s AI, automation, and governance capabilities.  You will handle complex incidents, provide deep troubleshooting expertise, and work closely with customers operating in highly regulated and jurisdiction‑sensitive environments.We are seeking a highly skilled Senior Network Support Specialist to help troubleshoot large‑scale, mission‑critical secure environments. This role focuses on advanced problem resolution, customer trust, and technical depth, with growing influence across teams and environments. You will work across modern data‑center architectures, cloud‑native platforms, and highly regulated infrastructures ensuring network services are resilient, robust, and high‑performing. Operate as a senior, independent resolver for complex issues, provide technical leadership in incident handling, and partnering effectively across teams.Due to the nature of this role and the associated client requirements, which include working with EU‑based customers in a sovereign environment, applicants must, by the job start date, lawfully reside in, be legally authorized to work in, and perform the role exclusively within the EU country of employment. Required education None Preferred education Bachelor's Degree Required technical and professional expertise Strong hands-on troubleshooting across TCP/IP, DNS, routing, and firewall/ACL controlled environments, with the ability to isolate fault domains quickly and accurately.Deep operational knowledge of Red Hat OpenShift/Kubernetes networking, including pod/service networking, OpenShift Routes/Ingress Controllers, and NetworkPolicy-driven segmentation.Experience supporting restricted and disconnected (air-gapped) environments, including internal registries/mirrors, proxy-controlled egress, and tightly governed network change processes.Support and troubleshoot BGP edge and internal routing issuesDiagnose and resolve control plane and data plane failuresSupport multi-tenant isolation using VLAN, VXLAN, and EVPNConfident communicator who can work effectively with customer network/security teams and internal engineering/SRE to resolve complex incidents under strict sovereignty and compliance constraints.This role may...