Dafei Wu Email & Phone Number

Hataitai, Wellington, New Zealand

Wellington & Wairarapa, New Zealand

Collaborate with clients to ensure smooth and reliable operation of software and systems for fulfilling clients’ business objectives and processes and provide technical support for both hardware and software issues our users and clients encounterImplement and maintain company’s AWS and VMware environment.Work with team members, clients to define business requirements and systems goals, and to identify and resolve business systems issuesManage the configuration and operation of… Show more Collaborate with clients to ensure smooth and reliable operation of software and systems for fulfilling clients’ business objectives and processes and provide technical support for both hardware and software issues our users and clients encounterImplement and maintain company’s AWS and VMware environment.Work with team members, clients to define business requirements and systems goals, and to identify and resolve business systems issuesManage the configuration and operation of client-based computer operating systems (Linux, UNIX, Windows Servers)Build, deploy and operate systems monitoring solutions(Zabbix, SNMP v3, IPSEC VPN) Monitor the system daily and respond immediately to security or usability concernsCreate and verify backups of dataRespond to and resolve help desk requestsUpgrade systems and processes as required for enhanced functionality and security issue resolutionAdministrate infrastructure, including network equipment(CISCO), firewalls(Checkpoint, Fortigate, Sophos), databases(Mysql), network security systems and other processesReview application, system and security event logsLodge change control based in company and clients’ requirementsManage and resolve ICT related incidents in a timely mannerInstall and test computer and network related equipmentDesign and deploy new applications and enhancements to existing applications, software, and operating systemsConduct research on software and systems products to justify recommendations and to support purchasing effortsInteract with vendors, outsourcers, and contractors to secure system-related products and servicesPropose and create system design models, specifications, diagrams, and charts to provide direction to teamsUpdate current design and system documents on direction from companyIntegrate servers, including database, e-mail, print, and backup servers and their associated software into enterprise systems Show less

Beijing City, China

Implement & maintain company’s cloud computing environment, which includes VMware (500+ vms), OpenStack (200+ instance), KVM (80+ vms) and AWS (50+ EC2) platform. Maintain, troubleshoot, evaluate, analyse datacentre Local Area Network (LAN), Core ISP Wide Area Networks (WAN) and VoIP phone services.Prepare and maintain procedures and documentation for IT inventory, and record diagnosis and resolution of network and System faults, enhancements and modifications to Systems and Network,… Show more Implement & maintain company’s cloud computing environment, which includes VMware (500+ vms), OpenStack (200+ instance), KVM (80+ vms) and AWS (50+ EC2) platform. Maintain, troubleshoot, evaluate, analyse datacentre Local Area Network (LAN), Core ISP Wide Area Networks (WAN) and VoIP phone services.Prepare and maintain procedures and documentation for IT inventory, and record diagnosis and resolution of network and System faults, enhancements and modifications to Systems and Network, and maintenance instructions.Analyse and maintaine security devices, which includes VPN(Sangfor), Web Application Firewall(Topsec) and Firewall(Topsec).Troubleshoot and develop Distributed File System (MooseFS(2.4PB), Dawoo(12PB)) and NAS/SAN Storage System (Huawei 8500(600+TB)) to meet the storage requirement.Install Linux (CentOS, RedHat, Ubuntu, Debian) and Windows (2008, 2012) system upgrades/patches and optimize performance, troubleshooting issues.Use Nagios, Zabbix, Cacti to monitor, evaluate and analyse network (100+ network devices) and server (1000+ servers) performance and send email/SMS alerts when it reports errors.Implement, evaluate and analyse 3-tier Web Platforms with Nginx Tomcat Apache MySQL and Keepalived LVS to keep high availability and load balance.Install, troubleshoot, optimize, evaluate and analyse MySQL, SQL Server and Oracle Database servers.Maintain AWS EC2, S3, VPC, RDS, IAM, CloudFront, CloudWatch, Route 53 and Windows Server 2012 AD, DNS, DHCP, WSUS, IIS, File & Print Server, Failover.Helpdesk and on-site end-user support by design and conduct training programs, providing references, technical assistance and support.Evaluate, analyse and performs the operational establishment and preventative maintenance of backups, recovery procedures and enforce security and integrity controls Show less

Master'S Degree, Computer Science

Bachelors, Computer Science