This is an exceptional job for a highly experienced and forward-thinking Engineering Manager, a specialist in Core Network and 5G Virtualization, to lead the ongoing development, maintenance, and transformation of a global telecoms core network. This role offers a unique opportunity to drive the evolution of a mission-critical infrastructure that supports cutting-edge IoT solutions and advanced mobile technologies, with the future transitioning to 5G Virtualization. Rapidly growing in customers, revenue, and employees, this organisation has a clear vision and strategy for its future success. Including investing in AI and making sure it is a priority for them. Office First:- This role will be full-time in their Dublin-based office for your first six months. This will massively assist you with your onboarding. Their modern office space has a great buzz, with everyone collaborating. After probation, it's three days a week in the office or more if you like. Your Technical Expertise: Deep understanding of legacy and modern telecom core elements, including HSS, PGW, STP, DRA, PCRF, GMSC, SMSC. Solid EPC (LTE) and IMS knowledge, with proven experience in 4G/5G transformation projects. Clear understanding of the evolution from legacy OCS/PCRF systems to converged PCC architectures. Experience in NOC environments and operational settings within MNOs or MVNOs. Hands-on expertise in cloud-native network technologies, CI/CD pipelines, OpenRAN, and iterative deployment. Capable of leading the transition from legacy to modern architectures without compromising service continuity (e.g., SMS services over CS core). What will this job entail? Lead and manage a high-performing team of 10+ senior telecoms engineers, fostering a culture of collaboration, innovation, and accountability. Oversee the delivery, operations, and maintenance of a global core network infrastructure, including legacy CS (Circuit-Switched) and modern EPC (LTE) components. Drive process improvements, automation, and efficiency across engineering and operational workflows. Guide the design and implementation of telecom core network architecture, including detailed signal flows, call cases, and geo-redundant connectivity solutions. Validate and manage 3rd-party vendor solutions, ensuring high performance and cost-effectiveness. Support operational and project-based workstreams (e.g., PB tickets), ensuring timely and quality delivery. 5G Virtualization journey Your Leadership & Vision expertise: A transformational leader with a passion for energizing teams. Proven success in reenergizing engineering teams and introducing disruptive technologies. Advocates for cross-functional exposureensuring engineers understand both operations and design to improve overall performance and resiliency. Customer-centric mindset, with a strong belief in learning from incidents to drive long-term system stability and reliability. Promotes a culture of ownership, camaraderie, and continuous learning. Skills: core network 5g manager Benefits: Work From Home