1,143 IT System Administrator jobs in Singapore

Direct message the job poster from Innova Solutions

Provide support for Windows/Linux System Administration, incident resolution and maintenance. We need someone to work on VMWare, Windows / Linux servers and cloud environments. Implement changes in PROD, UAT, SIT and/or DR environment.

• Refine and automate regular processes, track issues and document changes.
• Review and improve system performance and capacity trends.
• Develop and maintain installation and configuration procedures.
• Involve in Disaster recovery activities for non-gaming applications.
• Perform proper documents for all process.

• Mid-Senior level

• Contract

• Information Technology

• IT Services and IT Consulting

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Information Technology - Senior Systems Engineer (Virtualization and Windows/Linux Administrator)

System Administrator (Azure and Google Cloud Platform)

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Job Scope

• New accounts set-up on active directory and M365.
• Manage M365 application suites such MS Office, SharePoint, OneDrive and Teams.
• Support project deployments such setting up servers, installing applications and hardening the system security.
• Design and testing of proposed architecture and technologies.
• Familiarity with virtualization environment, virtual machines, storage technologies containerized applications and container orchestration platforms.
• Working experience with Video management software such Milestone, Nx Witness or HikCentral.
• Working experience with CCTV, IP Telephony and access control system.
• Knowledgeable in system hardening, patching and upgrading of OS, firmware and software.
• Run reports on system performance for teams and wider organization.
• Optimise processes and lead process improvement.
• Manage staff and user credentials and frameworks.
• Troubleshoot technical issues.
• Create and implement training for staff.
• Coordinate and provide support for the Firewall and network system.
• Ensure systems are secure and protected from breach or viruses.
• Risk mitigation planning.
• Owning a motorcycle and having the ability to ride with a valid license is an advantage.
• A Transport allowance will be provided.
• Equipped with CCNA for Snr. Post. / is an advantage for Jnr. Post.

Job Scope

• New accounts set-up on active directory and M365.
• Manage M365 application suites such MS Office, SharePoint, OneDrive and Teams.
• Support project deployments such setting up servers, installing applications and hardening the system security.
• Design and testing of proposed architecture and technologies.
• Familiarity with virtualization environment, virtual machines, storage technologies containerized applications and container orchestration platforms.
• Working experience with Video management software such Milestone, Nx Witness or HikCentral.
• Working experience with CCTV, IP Telephony and access control system.
• Knowledgeable in system hardening, patching and upgrading of OS, firmware and software.
• Run reports on system performance for teams and wider organization.
• Optimise processes and lead process improvement.
• Manage staff and user credentials and frameworks.
• Troubleshoot technical issues.
• Create and implement training for staff.
• Coordinate and provide support for the Firewall and network system.
• Ensure systems are secure and protected from breach or viruses.
• Risk mitigation planning.
• Owning a motorcycle and having the ability to ride with a valid license is an advantage.
• A Transport allowance will be provided.
• Equipped with CCNA for Snr. Post. / is an advantage for Jnr. Post.

• Overall responsibility for and ownership of the ERP implementation
• Identify business requirements and develop SAP solutions
• Work with vendor to migrate current financial system to SAP B1
• Administration of SAP modules and solutions
• Perform testing UAT and training
• User helpdesk support
  Any other adhoc duties or assignments as assigned by the supervisor

Requirements:

• Degree/Diploma in Computer Science/Information Technology with minimum 3yrs' experience in SAP solutions
• Strong knowledge of SAP financial modules
• Must have strong coordination and follow up skill
• Good communication skills, independent and team player
• Good analytical skills, creative, resourceful with minimal supervision
• Able to adapt in a fast-paced business environment

5 days work week

Loyang Area

Electronics MFG Industry

Interested Applicants, kindly forward your resume via email to

Tempserv Pte Ltd

License No: 06C3745

Attention: Audris Teo / EA Personnel No: R

DSO National Laboratories (DSO) is Singapore's largest defence research and development (R&D) organisation, with the critical mission to develop technological solutions to sharpen the cutting edge of Singapore's national security. At DSO, you will develop more than just a career. This is where you will make a real impact and shape the future of defence across the spectrum of air, land, sea, space and cyberspace.

The Robotics Division focuses on the research and development of advanced robotic systems and technologies across the air, land and maritime domains. These include aerodynamics, autonomy, platform control, guidance and navigation technologies.

People are DSO's greatest asset. You will get to realise your career aspirations and develop your own niche either as a deep technical expert or a leader in the team. With frequent career dialogues and a robust training and development framework, we will provide you with the necessary development tools for you to reach your potential. You will also be recognised and rewarded through competitive remuneration packages and scholarship opportunities.

System Administrator (Robotics)

In this role, you will:

• Assisting with setting up of IT systems in the Division, including requirements gathering and implementation of suitable hardware and software solutions
• Installation of software on servers / end point devices, and testing and troubleshooting after installation where applicable
• Assisting with implementation and maintenance of IT security of systems / devices in accordance with DSO Cybersecurity Policy
• Performing periodic preventive and corrective maintenance, updates and upgrades to software / hardware in the Division, including Operating Systems, end point devices and applications
• Performing audit of IT systems to ensure compliance with DSO IT Security Policy
• Providing advice to Division staff on IT related matters
• Maintaining database of IT systems and endpoint devices in the Division, and provide reports to the Division Management on the status of the systems and devices

• Bachelor's Degree in Infocomm Technology or Engineering related fields
• Good understanding in IT administration and networking
• Knowledge and hands on experience in the following areas would be an advantage: windows environment and security applications, Linux environment and security applications, database administration, IT asset management
• Proficiency in OS and software patch management via patch management software

LINUX

TROUBLESHOOTING

MAINTENANCE

IT SYSTEMS

DATABASE MANAGEMENT

0 ~ 4 years

ROBOTICS

PERMANENT

ROBOTICS

SYSTEM INFRASTRUCTURE

1. System Administrator - Physical Identity Access Management
2. Card Administration: Support in managing the regional card access system.
3. Badge Production: Support creation of personal Photo ID Badge for Associates and generic Contractor/Temporary/Visitor Badge.
4. Application Procedures: Support in the management of access rights applications from the Alert Enterprise Guardian.
5. Generation & Dissemination of Reports: Support in the management of access rights provisioning for New Hires, Staff Transfer, and de-provisioning for Departing Associates.
6. Any other instructions as directed by the clients or its representative. Which includes: a. Responsible for answering phone calls related to emergencies, life safety, asset protection, security or criminal issues and assist employees and vendors with general information requests. b. Incidents reported to SOACC may result in impact to the employees, customers, or facilities to mitigate immediate threats by providing swift engagement of appropriate local resources. c. Adhere to procedures while monitoring and reacting to life safety and burglar alarms activation the client's facilities equipped with alarm and DVR CCTV equipment. d. Provides investigative support on security / safety incidents as directed by PSMs / RSMs. e. Provides input to SOACC Intelligence & Analysis team as events/incidents are reported in. Conducts additional SOACC operational support as directed.

Job Scope

• New accounts set-up on active directory and M365.

• Manage M365 application suites such MS Office, SharePoint, OneDrive and Teams.

• Support project deployments such setting up servers, installing applications and hardening the system security.

• Design and testing of proposed architecture and technologies.

• Familiarity with virtualization environment, virtual machines, storage technologies containerized applications and container orchestration platforms.

• Working experience with Video management software such Milestone, Nx Witness or HikCentral.

• Working experience with CCTV, IP Telephony and access control system.

• Knowledgeable in system hardening, patching and upgrading of OS, firmware and software.

• Run reports on system performance for teams and wider organization.

• Optimise processes and lead process improvement.

• Manage staff and user credentials and frameworks.

• Troubleshoot technical issues.

• Create and implement training for staff.

• Coordinate and provide support for the Firewall and network system.

• Ensure systems are secure and protected from breach or viruses.

• Risk mitigation planning.

• Owning a motorcycle and having the ability to ride with a valid license is an advantage.

• A Transport allowance will be provided.

• Equipped with CCNA for Snr. Post. / is an advantage for Jnr. Post.

You will administer and support Java application middleware across Apache Tomcat and Oracle WebLogic environments. The role focuses on environment build, configuration, hardening, deployment support, monitoring, and troubleshooting across Dev/QA/Prod . You'll partner with application teams, DBAs, network/security, and DevOps to ensure secure, reliable, and performant services.

• Environment Build & Configuration
  
  Install, configure, and maintain Tomcat instances (service wrappers, JVM settings, thread pools, virtual hosts, context paths, HTTP/HTTPS connectors).

Configure WebLogic domains, admin/managed servers, clusters, data sources (JDBC), JMS, connection pools, and node managers.

Implement SSL/TLS , manage keystores/certificates, and enforce secure cipher suites and protocols.
- Deployment & Release Support

Support deployment of Java applications (WAR/EAR) across Dev/QA/Prod.

Integrate application services with APIs , databases, and SFTP endpoints.

Automate repeatable tasks (startup/shutdown, deployments, health checks).
- Operations, Monitoring & Troubleshooting

Proactively monitor application and middleware health; configure logging and log rotation.

Integrate and tune alerts with tools such as Splunk (logging/observability) and Tenable (vulnerability posture).

Diagnose and resolve incidents related to JVM performance, memory leaks, thread contention, connection pooling, and deployment failures.

Implement and maintain high availability & load balancing configurations.
- Security & Compliance

Apply OS and middleware security patches and updates on a regular cadence (Windows & Linux).

Remediate vulnerabilities; maintain configuration baselines aligned to security standards and hardening guides.

Manage certificate renewals and secrets/keystore hygiene.
- Platform & Infrastructure Administration

Support Windows Server services (WSUS, basic file/NTFS permissions) and Linux administration for middleware hosts.

Active Directory basics: user/groups, GPO awareness, DNS entries relevant to app hosting.

Manage Symantec Endpoint Protection Manager (SEPM) policies on servers.
- DevOps & Automation

Use GitLab (CI/CD) for pipeline-driven deployments where applicable.

Leverage Docker for packaging middleware tools/utilities; use Terraform for IaC in supported environments.

Contribute to runbooks, SOPs, and environment documentation.
- Service Management

Handle user requests and operational queries within SLAs.

Participate in problem reviews/RCAs and drive continual service improvement.

• 3–6 years' hands-on experience administering Tomcat and/or WebLogic in enterprise environments.
• Strong knowledge of Java application hosting , JVM tuning, JDBC data sources, and web security (SSL/TLS, certs, ciphers).
• Proficiency with SQL fundamentals for connectivity/health checks (any RDBMS).
• Solid experience with Linux (RHEL/CentOS/Ubuntu) and Windows Server basics.
• Experience with logging/monitoring (e.g., Splunk) and vulnerability tooling (e.g., Tenable).
• Familiarity with GitLab CI/CD , Docker , and Terraform (working level).
• Scripting in Bash and/or PowerShell for automation.
• Strong troubleshooting, documentation, and stakeholder communication skills.

DSO National Laboratories (DSO) is Singapore's largest defence research and development (R&D) organisation, with the critical mission to develop technological solutions to sharpen the cutting edge of Singapore's national security. At DSO, you will develop more than just a career. This is where you will make a real impact and shape the future of defence across the spectrum of air, land, sea, space and cyberspace.

The Defence Medical & Environmental Research Institute (DMERI) builds up technological capabilities for the protection against chemical and biological warfare agents. It also conducts research and development into combat care, human effectiveness, bio- technology and bio-engineering to enhance the safety, survivability and performance of our national forces in hostile battlefield environment.

People are DSO's greatest asset. You will get to realise your career aspirations and develop your own niche either as a deep technical expert or a leader in the team. With frequent career dialogues and a robust training and development framework, we will provide you with the necessary development tools for you to reach your potential. You will also be recognised and rewarded through competitive remuneration packages and scholarship opportunities.

System Administrator (DMERI)

In this role, you will provide support to maintain a secure, robust and reliable infrastructure for the IT systems in the Division, including:

• Assisting with setting up of IT systems in the Division, including requirement gathering and implementation of suitable hardware and software solutions
• Installation of software on servers/end point devices, and testing and troubleshooting after installation, where applicable
• Assisting with implementation and maintenance of IT security of systems/devices in accordance with DSO Cybersecurity Policy
• Performing periodic preventive and corrective maintenance, updates and upgrades to software/hardware in the Division, including operating systems, end point devices and applications
• Performing audit of IT systems to ensure compliance with DSO IT Security Policy
• Providing advices to Division staff on IT related matters
• Maintaining database of IT systems and endpoint devices in the Division, and provide reports to the Division Management on the status of the systems and devices

• Degree / Diploma in Computer and Information Science/ Computer and Network Technology/ Computer & Networking/ Computer Science/ Computer Science and Systems/ Information Technology
• Strong analytical skill with aptitude in dealing with technical and operational problems
• Knowledge and hands on experience in the following areas would be an advantage: windows environment and security applications, Linux environment and security applications, database administration, IT asset management
• Proficiency in OS and software patch management via patch management software
• Candidates with the following certificates are preferred: CompTIA related certificate, ITIL Foundation, Microsoft 365 certified

NETWORK SECURITY

VIRTUALIZATION

SCRIPTING

1 ~ 3 years

DEFENCE MEDICAL & ENVIRONMENTAL RESEARCH INSTITUTE

PERMANENT