Alex Zhang

Experience

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  China Unicom

  Feb 2012 - Aug 2014

  • In charge of building a wireless network optimization system to extract and organise data from 20,000 WCDMA base stations from different manufacturers (e.g. Ericsson/Huawei).• Wireless network maintenance: recognise network problems by monitoring and analysing the key indicators(e.g. WCDMA connection rate), base station parameters(e.g. amount of neighborhoods), measurement reports(e.g. weak coverage samples), etc. • Implemented the Base Station Requirements Specification (BSRS) to prioritize the construction and expansion of WCDMA Base Stations by analysing various indicators such as Measurement Reports, customer complaints and driving test results.• Driving Test and Indoor CQT: Do driving test(6000 KMs) every 3 months. Test the quality of indoor telecommunication systems in 440 buildings every month using test mobiles (Ericsson, TEMS).• Attended many lectures about LTE technology (MIMO, OFDM, eNodeB, radio network access operation and maintenance training, VoLTE Implemenation).• Provide wireless network optimization system training for more than 100 people from branch companies. Show less

  • Wireless Network Engineer

    Dec 2012 - Aug 2014

  • Graduate Program

    Feb 2012 - Dec 2012
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  Expertech Security Ltd

  Oct 2015 - Mar 2018

  Network and Eletronic Technician

  1. Carried out network architecture design for small businesses in New Zealand.2. Onsite cabling, patching and configuring network devices (Router, Switch, Firewall, AP, etc.).3. Implemented system installation, configuration and technical support for Windows Server OS, Windows OS, Virtualization and other applications onsite or remotely.4. Investigated and troubleshot internet routing, office switching and VLAN problems for small business in NZ. Carry out required repairs to fix problems in a professional and timely manner.5. Designed the deployment scheme; onsite installing, programming and debugging of Alarm/CCTV/Intercom/Home Theatre according to clients’ requirements and real environment.6. Handled customer queries face-to-face, provided after-sale services both on phone and onsite. Show less

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  Gallagher

  Mar 2018 - Apr 2019

  Technical Support Engineer

  1. Provided Level 2 technical support for global customers by responding to both online phone callsand email requests; receive and resolve an average of 20 inquires per day.2. Dealt with all technical support requests, with particular focus towards issues related to Server Operating System Configuration, Network Connectivity, SQL server, Virtual Machine, etc..3. Investigated and identified problem root causes, provided suitable solutions or workarounds whileassisting in developing permanent solutions; remote to clients’ PC if required.4. Tested faulty devices and new features of software and hardware on virtual machines (VMWareESXi, Workstation PRO).5. Ensured all technical support requests are dealt with, recorded and documented in a timelymanner in accordance with the relevant standard procedures. Show less

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  Aderant

  Apr 2019 - now

  System Administrator

  1. Configure, deploy and manage all internal environments (83 Local VMs, 8 AWS VMs and 15physical servers) for PM, DEV and QA global wide.2. Install, patch, and manage Windows Server 2016/2019, SQL Server and AD(OU/GPO/gSMA).3. Carry out network/system security management including account permissions (Windows/SQL/Product), firewall rules and SSL certificate.4. Monitor server performance with multi tools (Grafana/Telegraf/Influxdb).5. Manage backups/checkpoints for physical/virtual machines.6. Provide support for other employees about product pre-configuration, deployment and update.7. Create and formulate environment usage rules; set up company wiki pages for environmentspecific details and regulations.8. Automate and optimize daily tasks by writing powershell scripts.9. Mentor and train new starters for smooth team integration. Show less