CompanyQT Technologies Ireland LimitedJob AreaInformation Technology Group > IT NetworkingOverviewQualcomm is seeking a Senior Data Centre Network Engineer to help architect, design, implement, and operate Qualcomm’s data center networks, with a particular focus on high-performance networking for AI/GPU workloads. The role is based in Cork, and serves as a key technical leader and escalation point for large-scale, mission-critical network services and regional buildouts, including hands‑on engagement and international travel to Saudi Arabia.Location & TravelCork, Ireland. International travel required – including Saudi Arabia (no travel restrictions). The incumbent will provide on‑site support as needed for deployments, cutovers, audits and operational readiness activities.Key ResponsibilitiesArchitect, design, and implement leaf‑spine data center networks and related services to support large-scale compute, storage, and engineering environments.Own L2/L3 network design and operation across critical protocols/technologies such as BGP, STP, QoS, MLAG/vPC/CLAG, EVPN, VXLAN.Drive network lifecycle management: scaling, upgrades, capacity planning, refreshes, and risk‑managed change execution.Design and support application delivery / load balancing architectures, including local and global (GSLB), with strong understanding of PKI/SSL, SSL offload, DNS impacts.Contribute to network designs that enable AI/ML training and inference at scale, emphasizing high bandwidth and low latency connectivity for GPU clusters.Apply knowledge of AI/GPU networking concepts and technologies such as RDMA, RoCE, and high‑speed Ethernet (e.g., 400G/800G roadmaps), and how network bottlenecks impact distributed training/inference performance.Partner with infrastructure teams to validate and improve architectures supporting multi‑node GPU workloads and scalable cluster growth.Improve reliability and operational efficiency through automation/orchestration and network‑as‑code practices (e.g., pipelines, configuration standards, repeatable deployments).Lead complex troubleshooting (individual, group, vendor‑assisted) and deliver durable root‑cause fixes, with strong TCP/IP operations expertise.Act as a senior escalation point across time zones; coordinate with vendors/partners as needed.Required QualificationsSenior: 7+ years in large enterprise/data center networking.Fluency in English required.Demonstrated experience designing/implementing leaf‑spine data center networks in heterogeneous environments.Expert knowledge of core DC networking and protocols/technologies including EVPN, VxLAN, BGP, L2/L3 operations, and large‑scale troubleshooting.Experience with application delivery / load balancing architectures and their security/crypto implications (PKI/SSL, SSL offload, DNS).Willingness and no restrictions to travel internationally, including Saudi Arabia.Preferred SkillsFluency in Arabic.Experience with Kubernetes and container platforms.Experience with Linux operating systems.Experience with server management (physical and/or virtualized environments).Physical RequirementsFrequently transports and installs equipment up to 20lb.Equal Opportunity StatementWe are an Equal Opportunity employer; all qualified applicants will receive consideration for employment without regard to race, colour, religion, sexual orientation, gender identity, national origin, disability, veteran status, or any protected classification.BenefitsSalary, stock and performance‑related bonus.Maternity/Paternity Leave.Employee stock purchase scheme.Matching pension scheme.Education assistance.Relocation and immigration support (if needed).Life, medical, income and travel insurance.Subsidised memberships for physical and mental well‑being.Bicycle purchase scheme.Employee run clubs (running, football, chess, badminton and many more).
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