Engineer Active Directory
Resume:
Douglas Yuen (MCSE,CCNA)
Network Technician
*******@*****.*** - Cell 917-***-****
Linkedin: https://hk.linkedin.com/in/douglas-yuen-07038b31
College Point, Queens, New York 11356
Relocation - Willing to relocate
US Permanent Resident (Green Card Holder)
Professional Certifications
MCSE - Microsoft Certified Systems Engineer MCP ID 3302941
CCNA Routing and Switching CISCO ID CSCO11309595
MCP - Microsoft Certified Professional
MCTS: Windows 7, Configuration - Microsoft Certified Technology Specialist
MCSA - Microsoft Certified Systems Administrator
MCDBA - Microsoft Certified Database Administrator
CompTIA A+
Summary
Excellent team player and willing to learn with 7+ experience working exp on IT solutions. Providing Web Site Hosting, Server Co-location, Fund Industry, Event Management, E-Commerce Solutions to customers in different parts of Asia, including Mainland China, Singapore, South Korea, Taiwan etc. Practical exp on Data Center Firewalls, Windows and Linux Systems to commit finance institution security standard such as HSBC, ING, Schroders. Familiar in a broad range of corporate and cloud networking and systems and participating in planning, analyzing and implement solutions in support of business objectives.
Technical Proficiencies
OS Platforms - Windows 9x/ME/2000/XP/7/8.1/10, Windows Servers NT4/2000/2003/2008/2012, Linux Redhat/CentOS/Red Hat Enterprise Linux
Windows - IIS, Active Directory, DNS, DHCP, FTP, Windows Terminal Service, Windows Update Services, Windows SharePoint Service 2.0
Email – IceWarp, Postfix, Exchange 2010 Server, MX records, Spam Policy Framework
Scripting Languages –Windows Scripting
Database – MSSQL 2000/2005/2008/2012/2014/ Express, MySQL
Linux - Apache, Bind DNS, Samba, Linux Webmin
Security Tools - Nessus Vulnerability Scanner, Microsoft Baseline Security Analyzer, Symantec/Kaspersky/NOD32/ Microsoft Forefront Endpoint Protection Anti-Virus
Firewall – Fortigate 40,60,80,90,100 Series, Juniper SSG5, SSG140, Checkpoint, ISA Server, Pfsense, IPCop
VPN - SSL VPN, IPSEC VPN, PPTP
Router – Cisco, Netgear, Linksys, D-Link
Switch – Cisco, 3Com, Dell
Wireless - 3Com AP
Network Protocols –TCP/IP, NAT, IP Routing, VLAN, LAN/WAN Administration
Virtualization – Hyper-V, VMware vSphere Hypervisor
Cloud Computing – AWS, Azure
Desktop Deployment – Symantec Ghost
Applications - Microsoft Office Suite (Word, Excel, PowerPoint, Outlook) Access, Visio
Server Monitoring - Server Alive Server Monitoring Tools, Linux SNMP
Backup - Backup Exec
Network Access Storage – Synology, QNAP, ISCSI Target and initiator
Working Experience
Internad Limited (Hong Kong) Senior Systems Engineer - Jul 2009 to Oct 2015 and Systems Engineer - Aug 2008 to Jul 2009
Responsibilities
Web Hosting Servers and Web Applications Administration (IIS + MSSQL, LAMP)
DNS Updates
Assist Developers to deploy PHP and .Net Web Applications and run SQL scripts in Database
Internet Domains and SSL Certificates Renewal and Installation
Secure Web Applications in Windows and Linux Platforms with SSL encryption
Web Applications Network and Hardware Resources Congestion Control
Routine Systems and Data backup with protection of data confidentiality 256-bit AES
Firewall Rules Management
Against ddos attacks and malicious mass requests for Data Center Networks and Web Applications
Against and Monitoring Web Applications attacks such as OWASP Top Ten attacks and report to Web Developers to fix the application vulnerabilities
7x24 Real-Time Monitoring Web Applications and Network Intrusion Activities
Web Application and network Penetration Tests using Nessus Vulnerability Scanner
Microsoft Baseline Security Analyzer Tests for Windows servers
Windows, Linux, Firewall System Hardening
Web Applications Business continuity and disaster recovery plan and tests
Data Backup Disaster Recovery plan and tests
7x24 Real-Time Monitoring Servers, Services and Network devices Availability
Monitoring and Reporting of Server Disks Capacity Usage
7x24 Report servers hardware failure and request to repair
Email Servers Configuration and Administration
Monitoring Email Blacklist Check and Request Removal
Mail Queue Management for Web Applications
Secure Email Systems with TLS (SSL) encryption
Monitoring of Data Centers Local and Oversea Network Bandwidth Utilization
Data Center Rack Mount Servers and Firewalls Deployment
Secure Data Centers, HQ and Branch offices network traffic over WAN networks
Configure remotely working environment for clients with SSL VPN Configuration and Remote Users Administration
Windows and Linux Servers Administration
Active Directory Administration (2003)
Respond to technical phone call during non-office hours
Hardware and Software Procurement
Vendors Management
Cloud Services and Virtual Servers Deployment on AWS (EC2, Route 53, SMTP)
Cloud Services and Virtual Servers Deployment on Azure
On-site Technical Support
Routers and Switches Configuration
Outlook Configuration
Network Printer Configuration
Accomplishments
Active/Active HA and Network Load Balancing Firewalls Implementation
Fortigate 40,60,80,90,100 Series, Juniper SSG5,SSG140 Firewalls configuration
Configure Data Center firewalls for HQ and Branch networks
Establishing SSL VPN and IPSEC VPN tunnels for different Data Centers, HQ and Branch
Configure VLANs for Data Center and LAN networks
Windows IIS, DNS, File Sharing, Active Directory, Terminal Services Implementation and Administration
Linux Primary and Secondary Bind DNS Installation and Configuration
Windows IIS Servers 2000/2003/2008/2012 servers Installation and Configuration to meet PCI Data Security Standard
Configure exists Windows IIS servers to run PHP web applications
Deployment of PHP and .Net Web Application servers for User acceptance testing (UAT) environment
Microsoft MSSQL Servers (2000, 2005, 2008, 2012, 2014) Installation
Deployment of Linux LAMP servers to meet PCI Data Security Standard
Wordpress and Umbraco CMS Installation and Basic Configuration
Deployment of Web Application servers and DNS services in Amazon AWS and Microsoft Azure platforms
Postfix SMTP Gateways Configuration and Tuning
Exchange Servers 2010 Installation and Configuration
Installation of Hyper-V and VMware vSphere Hypervisor server
Installation of Synology and QNAP Network Access Storage
Salive Network and Server monitoring software Installation
Shun Tak Fraternal Association Cheng Yu Tung Secondary School (Hong Kong) – Jan 2008 to Jul 2008 (IT Technician)
Responsibilities
Windows Servers Administration (NT4, 2000, 2003)
Windows Domain Administration (NT4)
Web Server Administration (IIS)
Routine Server Data Backup
Users Support and Desktops Maintenance (2000, XP, 7)
Desktops and laptops Setup
Desktop Cloning (Symantec Ghost)
Software Deployment
Network Printers Installation
Wireless APs Administration
Anti-Virus Server and Clients Administration (Symantec)
Hardware and Software Procurement
Vendors Management
Good Hope School (Hong Kong) – Sep 2006 to Dec 2007 (IT Officer)
Responsibilities
Windows 2003 and Linux CentOS Servers Administration (20 Servers)
Firewall and Switches Configuration and Administration
Users Support and Desktops Maintenance (2000, XP) (400 desktops, Laptops)
Desktops and laptops Setup
Windows server 2003 Active Directory Administration
Group Policy Administration
Windows Update Services Administration
Network Printers Installation and Administration
Intranet Web System Support
School Internal Web applications Installation and Upgrade
Routine Data Backup
Desktop Cloning (Symantec Ghost)
Wireless APs Administration
Anti-Virus Server and Clients Administration (Symantec)
Hardware and Software Procurement
Vendors Management
Accomplishments
Coordinating with vendors to upgrade school LAN network for 400+ users environment
Windows 2003 file server upgrade and migration
Checkpoint Firewall Installation to secure admin department’s LAN
Upgrading Netscreen 25 firewall to PFsense Open source FreeBSD firewall
King Lam Catholic Primary School (Hong Kong) - Sep 2005 to Aug 2006 (Technical Support)
Responsibilities
Windows Servers 2003 Administration
Windows Server 2003 Active Directory Administration
Group Policy Administration
Windows Update Services Administration
Network Printers Installation and Administration
Intranet Web System Support
School Internal Web applications Installation and Upgrade
Routine Data Backup
Users Support and Desktops Maintenance (2000, XP)
Desktops and laptops Setup
Desktop Cloning (Symantec Ghost)
Wireless APs Administration
Anti-Virus Server and Clients Administration (Symantec)
Audio/ Video Equipments Setup
Photo Taking
School Websites update
Hardware and Software Procurement
Vendors Management
St Margaret's Co-educational English Secondary and Primary School (Hong Kong)
(IT Technician) – Sep 2003 to Oct 2004 and (IT Assistant) – Sep 2002 to Aug 2003
Responsibilities
Desktop Support and Maintenance (98, ME, 2000, XP)
Desktops and laptops Setup
Desktop Cloning (Symantec Ghost)
Printers Installation
Anti-Virus Clients Installation
Audio/ Video Equipments support
Photo Taking
Video Editing
Hardware and Software Procurement
Vendor Management
Accomplishments
Assist for School IT Equipments relocation
Kam Kin Engineer Company (PCCW Internet Contractor) (Hong Kong) - May 2002 to Aug 2002 (Control Assistant)
Responsibilities
Assigning daily home internet installation and maintenance orders to field technicians
Contacting customers and field technicians to trace the job process
Receive phone call from field technicians
Education
Bachelor of Arts (Honours) in Computing (The Hong Kong Polytechnic University)
Higher Diploma in Network Application (Hong Kong Vocational Training Council)
Certificate in Computing (Hong Kong Vocational Training Council)
Certificate in IT Teaching and Administrative Support Programme - Hong Kong (Technical)
Yi Jin Programme Certificate in Information Technology - Hong Kong
Youth Pre-employment Training Programme - Hong Kong
Secondary school graduation - Hong Kong
Languages
English –Fluent
Chinese(Cantonese, Mandarin) - Native
Available
Immediately
Expected Salary
Negotiable
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