L3 System Engineer
6000 - 10000 SGDRecruit Express Pte Ltd
The L3 System Engineer is responsible for providing advanced technical support, troubleshooting, administration, and engineering of enterprise server, virtualisation, storage, backup, and compute infrastructure.
The role will act as the Level 3 technical escalation point for complex infrastructure incidents and problems. The engineer will provide technical leadership to L1/L2 teams and work closely with network, security, application, vendors, and regional infrastructure teams.
The role will also support infrastructure projects, technology refreshes, migrations, upgrades, patching, capacity management, disaster recovery, and continuous improvement initiatives.
Key Responsibilities
1. L3 Infrastructure Support
- Provide L3 technical support for complex infrastructure incidents escalated from L1/L2 teams.
- Troubleshoot complex server, virtualisation, storage, backup, and compute issues.
- Perform detailed technical analysis of system logs, performance metrics, configurations, and infrastructure events.
- Lead troubleshooting for major incidents and critical infrastructure outages.
- Perform Root Cause Analysis (RCA) and identify permanent corrective actions.
- Provide technical guidance and mentoring to L1/L2engineers.
- Ensure incidents are resolved within agreed SLA.
2. VMware Virtualisation
- Administer and troubleshoot enterprise VMware vSphere, ESXi and vCenter environments.
- Support VMware clusters, HA, DRS, vMotion and virtual networking.
- Troubleshoot VM CPU, memory, storage and network performance issues.
- Perform ESXi host and VMware Tools upgrades.
- Support VM provisioning, migration, snapshots and lifecycle management.
- Troubleshoot ESXi host, vCenter and cluster-related issues.
- Perform VMware capacity planning and resource optimisation.
- Participate in VMware platform upgrades and migration projects.
3. Cisco UCS
- Manage and troubleshoot Cisco UCS infrastructure.
- Support UCS Manager, Fabric Interconnects, chassis, blades and service profiles.
- Troubleshoot UCS connectivity, hardware, firmware and performance issues.
- Perform UCS firmware upgrades and infrastructure maintenance.
- Work with Cisco TAC on complex hardware and platform issues.
- Support UCS integration with VMware and enterprise storage environments.
4. NetApp Storage
- Manage and troubleshoot NetApp storage infrastructure.
- Support storage provisioning, volumes, LUNs, aggregates and storage connectivity.
- Troubleshoot storage performance, capacity and connectivity issues.
- Support NFS, CIFS/SMB and SAN environments where applicable.
- Monitor storage capacity and performance.
- Perform storage configuration changes, upgrades and lifecycle activities.
- Work with NetApp support on complex storage incidents.
5. Backup & Recovery
NetBackup
- Administer and troubleshoot Veritas NetBackup environments.
- Troubleshoot backup failures, media issues, policy configuration and backup performance.
- Monitor backup jobs and ensure backup compliance.
- Perform backup and recovery troubleshooting.
- Support backup infrastructure upgrades and maintenance.
Veeam
- Administer and troubleshoot Veeam Backup &Replication.
- Configure and maintain backup jobs and policies.
- Troubleshoot backup and replication failures.
- Support VM recovery, file-level recovery and disaster recovery activities.
- Monitor backup health and capacity.
- Perform Veeam upgrades and infrastructure maintenance.
6. Disaster Recovery
- Support enterprise Disaster Recovery (DR) infrastructure and processes.
- Participate in regular DR exercises and recovery testing.
- Validate backup integrity and recovery capability.
- Troubleshoot replication and recovery issues.
- Maintain DR documentation, recovery procedures and runbooks.
- Support business continuity and disaster recovery initiatives.
7. Server & Operating System Support
- Support enterprise physical and virtual server infrastructure.
- Troubleshoot Windows Server and infrastructure-related issues.
- Support server provisioning, upgrades, patching and decommissioning.
- Analyse CPU, memory, disk, network and OS performance.
- Work with hardware vendors on server-related incidents.
- Ensure servers comply with corporate security and configuration standards.
8. Infrastructure Patching & Upgrades
- Plan and execute infrastructure patching and upgrade activities.
- Perform VMware ESXi, VMware Tools, Cisco UCS and storage upgrades.
- Coordinate patching activities with application and infrastructure owners.
- Perform pre-change and post-change validation.
- Develop implementation and rollback plans.
- Ensure changes are implemented according to approved Change Management procedures.
9. Incident & Problem Management
- Take ownership of complex and critical infrastructure incidents.
- Participate in Major Incident Management and technical bridge calls.
- Perform detailed RCA for critical and recurring incidents.
- Identify permanent solutions to recurring infrastructure issues.
- Maintain technical knowledge articles and troubleshooting guides.
- Drive Problem Management activities to improve infrastructure stability.
Technology| Required Skills
VMware| vSphere, ESXi, vCenter, HA, DRS, vMotion, virtual networking
Cisco UCS| UCS Manager, Fabric Interconnects, Blades, Service Profiles, Firmware
NetApp| Storage, SAN/NAS, NFS, SMB, LUN, Capacity &Performance
NetBackup| Backup policies, troubleshooting, recovery, media management
Veeam| Backup & Replication, VM backup, recovery, replication
Windows Server| Administration, troubleshooting, patching, performance
PowerShell| Scripting and infrastructure automation
Qualifications & Experience
- Diploma or Degree in Computer Science, Information Technology, Engineering or related discipline.
- 5–8+ years of experience in enterprise infrastructure/system engineering.
- Strong hands-on experience with VMware environments.
- Hands-on experience with Cisco UCS.
- Good experience with NetApp storage.
- Strong experience with either NetBackup and/or Veeam.
- Experience supporting large-scale enterprise or multi-site environments.
- Experience with ITIL Incident, Problem and Change Management.
- VMware VCP, Cisco, NetApp, Veeam or relevant infrastructure certifications are advantageous.
Key Competencies
- Strong L3 troubleshooting and analytical skills.
- Excellent problem-solving capabilities.
- Strong ownership and accountability.
- Ability to independently troubleshoot complex infrastructure issues.
- Strong communication and stakeholder-management skills.
- Ability to work under pressure during major incidents.
- Strong documentation and reporting skills.
- Proactive approach to infrastructure monitoring and improvement.
Interested applicants, please Email, View email address on mycareersfuture.gov.sg
Fabian Ling Tuong Liing
R25129353
Recruit Express Pte Ltd
EA Licence No: 99C4599
We regret that only shortlisted candidates will be contacted.
6000 - 8500 SGD
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