ddn - Resident Engineer
Requirements
• Bachelor’s degree or equivalent experience in Computer Science, Engineering, • Information Technology, or a related discipline. • At least 5 years of experience in infrastructure engineering, storage • administration, systems administration, data-centre operations, or a related • Hands-on experience supporting enterprise storage, HPC, AI, cloud, or highperformance computing environments. • Strong Linux systems administration and troubleshooting skills. • +1.800.837.2298 · [email protected] · ddn.com http://ddn.com • Experience with DDN storage platforms and/or EXAScaler/Lustre environments. • Experience with file systems such as Lustre, NFS, GPFS, or other parallel or • distributed file systems. • Working knowledge of Kubernetes architecture and day-to-day cluster • Working knowledge of the Container Storage Interface, including CSI controllers, • node plugins, volume lifecycle operations, mounts, snapshots, expansion, and • topology considerations. • Experience troubleshooting persistent storage consumed by Kubernetes • Strong understanding of IP networking, Ethernet, InfiniBand, or other high-speed • Ability to interpret system logs, Kubernetes events, CSI logs, metrics, alerts, and • performance data. • Experience with monitoring, observability, and alerting platforms. • Experience with incident management, problem management, change • management, and technical escalation processes. • Ability to troubleshoot methodically across hardware, operating systems, • storage, file systems, Kubernetes, networking, and application layers. • Strong understanding of data-centre fundamentals, including power, cooling, • rack layouts, cabling, remote management, and hardware replacement • Strong written and verbal communication skills. • Ability to work independently on a customer site while collaborating effectively • with distributed technical teams. • Willingness and ability to participate in on-call or after-hours support when • Experience supporting large-scale or rapidly growing storage environments. • Experience with Kubernetes distributions such as Red Hat OpenShift, SUSE • Rancher, VMware Tanzu, or equivalent platforms. • Familiarity with Helm, Operators, Custom Resource Definitions, YAML, and • Kubernetes troubleshooting tools. • Experience with Prometheus, Grafana, Alertmanager, OpenTelemetry, or • comparable observability platforms. • Working knowledge of Ansible, Python, Bash, or other automation technologies. • Experience with Git-based configuration management and infrastructure-ascode practices. • Familiarity with S3 or object-storage concepts and data-movement tools. • Experience with authentication and authorization technologies such as LDAP, • Active Directory, Kerberos, and TLS certificates. • Knowledge of DNS, NTP, DHCP, routing, VLANs, MTU, firewall policies, and • network troubleshooting. • Experience with high-availability design, quorum, failover, replication, and • disaster recovery. • Familiarity with ITIL-based service management processes. • Experience preparing operational reports, service reviews, capacity forecasts, • and executive summaries. • Relevant certifications in Linux, Kubernetes, cloud, networking, or storage. • Knowledge of Mandarin Chinese would be an advantage
Responsibilities
• Provide on-site operational ownership for DDN storage systems and associated • EXAScaler/Lustre environments. • Monitor storage health, availability, capacity, performance, alerts, and system • Respond to incidents, service requests, and operational events in accordance • with agreed severity and response targets. • Lead technical triage, fault isolation, recovery, and root-cause analysis for • storage, file-system, Linux, networking, and integration issues. • Coordinate with customer operations teams, DDN Support, Engineering, • hardware vendors, and other stakeholders during major incidents. • Maintain and troubleshoot EXAScaler/Lustre file systems, metadata services, • storage targets, client connectivity, failover, and recovery procedures. • Support Kubernetes environments that consume DDN storage, including cluster • integration, persistent volumes, storage classes, access modes, and workloadlevel storage troubleshooting. • Configure, validate, and troubleshoot CSI drivers and related Kubernetes storage • Investigate issues across the Kubernetes-to-storage path, including pods, nodes, • kubelet, CSI controller and node plugins, APIs, mounts, permissions, • networking, and backend storage. • Support NFS, parallel file-system, block, and other storage access protocols • where applicable. • Perform planned maintenance, upgrades, expansions, migrations, hardware • replacements, and configuration changes using approved change-management • Develop and maintain operational runbooks, standard operating procedures, • recovery procedures, escalation guides, and troubleshooting documentation. • Conduct regular health checks, capacity reviews, performance assessments, • and operational-readiness reviews. • Identify risks, recurring failure patterns, single points of failure, and opportunities • to improve reliability and automation. • Validate backup, restore, replication, disaster-recovery, and business-continuity • procedures where applicable. • Support capacity forecasting for storage, metadata, network, client, and datagrowth requirements. • Assist with performance benchmarking, workload analysis, tuning, and servicelevel reporting. • Maintain accurate configuration management, asset records, incident records, • problem records, and installed-base information. • Participate in on-call, out-of-hours, or escalation coverage as required by the • customer environment. • Provide technical briefings, knowledge transfer, and operational training to • customer teams. • Contribute to implementation schedules, risk and mitigation plans, acceptance • testing, handover, and customer sign-off.
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