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Key responsibilities: Provide expert technical advice on the administration, operation, and configuration of GCIS equipment, including virtualized servers, enterprise storage, and backup systems Perform in-depth problem diagnosis, capacity management, and performance tuning for GCIS Platform-as-a-Service (PaaS/EGIS) application servers and databases (IBM DB2, Oracle, and MySQL) Deliver intensive database support, including complex backup, disaster recovery, and high-availability (HA) configurations Facilitate system software upgrades within a virtualized environment and provide technical execution support for data center relocation projects Assist the Project Manager in monitoring contractor performance and conducting rigorous Quality Assurance (QA) on project deliverables Provide round-the-clock emergency support when required and handle ad-hoc troubleshooting outside normal office hours Requirements: Higher Diploma / Degree in Information Technologies or related subjects At least 6-8 years working experience in IT Proven track record in supporting enterprise-scale IT infrastructure (>1,000 virtual servers) with dual-active production sites across cross-site networks, SAN storage, and Linux-based J2EE enterprise applications Hands-on technical experience with MySQL, IBM DB2 UDB, and Oracle RAC database systems Practical experience with VMware (version 7 or above) Experience with RedHat Enterprise Linux (RHEL) and RedHat JBoss application servers is highly preferred Experience reviewing and conducting QA on vendor and contractor deliverables Good communication skills Good command in spoken and written English and Chinese Excellent analytical and problem-solving abilities, strong self-motivation, solid interpersonal skills, and a collaborative team attitude If interested for the above position, please send detailed resume with current and expected salary as well as date of availability by sending email to applyjob@clts.com For more job opportunity, please visit our website: www.clts.com The personal information is collected strictly for recruitment purpose only.