Alex Tan
Senior System Engineer
Summary
Focused Systems Engineer with excellent troubleshooting skills. Well-versed in administering, testing and managing IT infrastructure. Meticulous and dedicated with proven history of 25 years of successful industry experience.
Overview
16
16
years of professional experience
2
2
Languages
Work History
Senior Systems Engineer
ST Engineering Advanced Networks & Sensors Pte Ltd
03.2015 - 04.2025
- Performed root cause analysis to provide resolutions for C2 production issues.
- Mentored junior SAs in advanced concepts, fostering professional development within the team by providing coaching as well as a knowledge base for the SAs as a reference point.
- Troubleshoot hardware & software components to identify root causes of malfunctions, reducing equipment downtime substantially.
- Conducted thorough audits of system architecture, identifying areas for improvement and implementing corrective actions.
- To formulate and perform backup and recovery
routines. - To manage the integrity of file systems within
the system. - To perform system administration, daily routine
administration, scheduled tasks, network
management services and system defects
management to maintain Cubicon 2 system
availability of C2 and CMS at 99.90%
respectively. - To perform system HA & DR
proficiently, proficient to
troubleshoot backend system. - To learn additional
server backend skillsets to better
support CUBICON II backend
server system after MLU. - To manage & support the MDTs
process by updating the MDTs
spreadsheet regularly (Keeping
track of it) as well as doing
troubleshooting & configuration of
new & old MDTs as and when
needed. - To support MLU replacement of
netcrypt, routers & switches for all
the SPF sites. - To support the MLU CMS by
monitoring the System,
Applications, Alarms & Hosts using
the Genesys Administrator
Extension. - To support the MLU CMS by
monitoring the PULSE & GAX. - To support the MLU C2
deployment & DR by using the C2
Admin Tools. - To support the deployment of the
C2 patch by running the using the
new Bigfix server. - To support the use of the RSA
token. - Daily monitoring of the OGG.
Consultant
BT Global Services (S) Pte Ltd
01.2009 - 08.2014
- Onsite support for Infrastructure in Jurong Island for every Mon, Wed & Fri.
- Managing the PABX as well as the fiber optic panel
- Coordinate with the IT Global Team on the implementation of Win 2008 Servers
- Installation/Configuration DNS, DCHP, Print Server & DFS Server
- Installation of Windows 2008 server
- Implementation of IP Telephony project
- Dealing with VPN technology such as IP/VPN tunnel, site to site VPN, VPN concentrators
- Administration of group policy in active directory for users & groups
- Maintains of user’s profile, home folders and folder redirection
- Sourcing & purchasing of network devices & peripherals
- Providing tier2/3 and onsite support (both overseas and local)
- Backend Testing with Customers
- Internet Configuration dialup, DSL proxy and firewalls
- Setup wireless LAN using Cisco LAP (Air-LAP1131)
- Plan and perform system maintenance such as installation of OS and Security patches
- Configuring of Cisco switches & routers
- Using VMWare to configure the virtual servers
- Scheduled & monitor backup jobs
- Provide System setup, support and Administer the Windows
- NT/2K/2003 server and enhance and document corporate policy setting by using login script and group policy.
- Deploy in Standard Chartered Bank to support the IT Infrastructure which includes daily user support as well as doing IT Project that are assigned from time to time.
- Support the Citrix XEN App and XEN DESKTOP issue as users need to connect remotely to the Citrix Server to run some critical applications.
Education
No Degree - Certified Novell Engineer
Drake International
04.2001 -
No Degree - Certified Arcserve 6x Engineer
J.R International Pte Ltd
04.2001 -
No Degree - DEC Unix System Administration/Utilities And Comma
Global Knowledge Network
04.2001 -
No Degree - MFG/PRO System Administration
SCS Enterprise Solutions
04.2001 -
No Degree - Working With Notes : Beyond Basics
Drake International
04.2001 -
No Degree - Lotus Notes Basics
Drake International
04.2001 -
No Degree - Workstation Management With Zenworks
Drake International
04.2001 -
No Degree - Securing Intranets With BorderManager
Drake International
04.2001 -
No Degree - Network Management Using Netware Managewise
Drake International
04.2001 -
High School Diploma -
National Productivity Board Date Joined : Jan 94
2 Bukit Merah Central 04.2001 -
No Degree - IT Network Security
Informatics Computer School
04.2001 -
Skills
Hard skills include technical expertise in areas like System Monitoring, System Troubleshooting & Network Security Soft skills include communication, problem-solving, leadership and teamwork
undefinedReading IT articles to keep abreast of upcoming technologies & exercise
Attend IT Shows to keep abreast of new technology as well as reading IT Articles.
Timeline
Senior Systems Engineer
ST Engineering Advanced Networks & Sensors Pte Ltd
03.2015 - 04.2025
Consultant
BT Global Services (S) Pte Ltd
01.2009 - 08.2014
No Degree - Certified Novell Engineer
Drake International
04.2001 -
No Degree - Certified Arcserve 6x Engineer
J.R International Pte Ltd
04.2001 -
No Degree - DEC Unix System Administration/Utilities And Comma
Global Knowledge Network
04.2001 -
No Degree - MFG/PRO System Administration
SCS Enterprise Solutions
04.2001 -
No Degree - Working With Notes : Beyond Basics
Drake International
04.2001 -
No Degree - Lotus Notes Basics
Drake International
04.2001 -
No Degree - Workstation Management With Zenworks
Drake International
04.2001 -
No Degree - Securing Intranets With BorderManager
Drake International
04.2001 -
No Degree - Network Management Using Netware Managewise
Drake International
04.2001 -
High School Diploma -
National Productivity Board Date Joined : Jan 94
04.2001 -
No Degree - IT Network Security
Informatics Computer School
04.2001 -
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