Total 58 database administrator job vacancies in Information Technology category in Islandwide

You will be a key technology partner to our customers in the Defence sector to thrive on developing the next breakthrough for the defence and security of Singapore. Working closely with the Solution Architect, Project Manager and Technical Lead, you will be part of a development team to develop, test and deploy software application as part of an overall project implementation.

Job Description:

·         Establish database performance baseline and executing workload tests such as replication, backup & recovery, log shipping, scalability, partitioning etc.

·         Responsible for Database sizing, capacity planning, performance tuning and database account management.

·         Review release notes and upgrade or patch database software based on maintenance schedules.

·         Create primary database storage structures (tablespaces), primary objects (tables, views, indexes) after application developers have designed an application.

·         Define user access and enable data distribution to the right end user in an appropriate format and in a timely manner.

·         Maintain and monitor systems to ensure optimal performance that meets established Service Level Agreements.

·         Develop and maintain the database standards and operating procedures that are aligned to IT policies, procedures, and service management frameworks.

Qualities We Value

·         Diploma in Computer Science or related technology disciplines with experience in database administration and operation management in Microsoft SQL Server, MongoDB.

·         Strong knowledge in database design, development, and administration in high volume, large scale and data intensive environment with relational & distributed databases.

·         Experience with highly-available database technology like clustering and replication.

Working Location : Central or West. Adhoc travel to customer site may require.

**We regret to inform that only shortlisted candidates will be notified. Personal data collected will be used for recruitment purposes**

Database Administrator (ref:120)

JOB RESPONSIBILITIES

• Monitor and optimize database performance and availability, ensuring service levels are met and implement improvements when needed.
• Manage database operations and governance, including configuration, permissions, hardening standards, naming standards, and documentation.
• Ensure service continuity, leading backup/restore procedures and disaster recovery planning.
• Lead database implementation and support application teams, reviewing database design and recommending improvements to data models.
• Establish and enforce database standards and procedures across implementations.
• Engage stakeholders and educate teams, explaining technical decisions and promoting best practices in coding and design.
• Develop team capability, mentoring junior DBAs, conducting training, and sharing knowledge across the organization.

Requirements:

• At least 2 years of experience in database administration.
• Posses experience with either Microsoft SQL Server or PostgreSQL.
• Experience in database migration projects.
• Specifically, migration from Oracle to Microsoft SQL Server or Oracle to PostgreSQL.

Interested applicants, please send your updated resume MS Word to hres@itcspl.com.

Please Indicate Job Code “120-DBA” on the email subject

We regret that only shortlisted candidates will be notified.

John Bryan (Reg No. R1106648)

IT Consultancy & Services Pte Ltd

EA No: 92C5311

• Perform logical and physical database design and creation, changes or removal of database, provide technical consultancy and advice on the usage of database software, advise application developers and owners on optimisation of database usage, SQL code and monitor availability of database, listener and other related processes;

• Review all daily logs, database alerts, database export logs, scheduled job logs;
• Perform database backups at frequency and within the timeframe as specified;
• Perform database recovery within the timeframe as defined; and
• Perform annual database recovery test on selected databases as determined.
• develop, review, test, implement and monitor database backup and recovery jobs, procedures and schedules.
• Plan and schedule regular database housekeeping and maintenance activities necessary to keep the database in a healthy state and at optimum performance.

Job Requirements:

• Degree in Computer Science or Information Technology
• At least three (3) years of experience in Oracle Database administration; and Oracle Database Administrator Certified Professional or at least three (3) years of experience in SQL Database Administration.
• Prior experience in large scale projects or System Integrator environment

Interested candidate please click "APPLY" to begin your job search journey.

We regret to inform that only shortlisted candidates will be notified.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Tech Services Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at https://www.persoloutsourcing.com/policies. You acknowledge that you have read, understood, and agree with the Privacy Policy.

PERSOL Tech Services Pte Ltd
UEN No. 202233837K

· 6–8 years of experience in Big Data / Data Platform Engineering in enterprise environments.

· Strong hands-on experience with:

o    Hadoop ecosystem (HDFS, YARN, MapReduce, HDP)

o    Apache Kafka (high-throughput environments)

o    Redis and MongoDBclusters

o    OpenSearch Elasticsearch

o    Apache NiFi

o AWS EMR + good knowledge of AWS Cloud.

· Strong expertise in Linux system administration and scripting (Shell/Python)

· Experience with Kerberos, data security, and access governance

· Proven experience in handling high-volume, low-latency systems (preferably payments/trading)

Responsibilities:

• Reviewing and optimising SQL queries written by application developers to ensure optimal performance and adherence to database standards
• Assisting in database design activities, including table structures, indexes, and relationships to support new application features or enhancements
• Troubleshooting database-related issues reported by application teams, including SQL error codes, performance problems, and data integrity concerns
• Supporting database changes through the development lifecycle (DEV, TEST, UAT, PROD), including coordinating database object migrations between environments
• Monitoring application database performance and implementing necessary tuning measures like reorganising tablespaces, updating statistics, and adjusting buffer pools
• Providing guidance to application developers on DB2best practices, coding standards, and efficient query writing techniques 
• Supporting application testing activities by helping with data refresh requests, test data preparation, and database-related test case validation

Requirements:

• Strong background in IT, Computer Science /Computer Engineering, or related discipline
• Minimum 8 years of relevant working experience in DB2 database administration is preferred.
• Relevant experience in the following would be advantageous:

1. Working with JCL (Jon Control Language)
2. Understanding of VSAM and other mainframe storage concepts
3. Familiar with database utilities and tools
4. Experience with database backup and recovery procedures

Responsibilities:

• Reviewing and optimising SQL queries written by application developers to ensure optimal performance and adherence to database standards
• Assisting in database design activities, including table structures, indexes, and relationships to support new application features or enhancements
• Troubleshooting database-related issues reported by application teams, including SQL error codes, performance problems, and data integrity concerns
• Supporting database changes through the development lifecycle (DEV, TEST, UAT, PROD), including coordinating database object migrations between environments
• Monitoring application database performance and implementing necessary tuning measures like reorganising tablespaces, updating statistics, and adjusting buffer pools
• Providing guidance to application developers on DB2best practices, coding standards, and efficient query writing techniques 
• Supporting application testing activities by helping with data refresh requests, test data preparation, and database-related test case validation

Requirements:

• Strong background in IT, Computer Science /Computer Engineering, or related discipline
• Minimum 8 years of relevant working experience in DB2 database administration is preferred.
• Relevant experience in the following would be advantageous:

1. Working with JCL (Jon Control Language)
2. Understanding of VSAM and other mainframe storage concepts
3. Familiar with database utilities and tools
4. Experience with database backup and recovery procedures

Skills:

Linux Administration

• Install, configure, and maintain Linux servers such as RHEL, Ubuntu, or CentOS.
• Perform user, group, permission, filesystem, and package management.
• Manage services, processes, logs, cron jobs, and system performance.
• Troubleshoot Linux OS issues including CPU, memory, disk, network, and boot problems.
• Perform patching, hardening, backup, recovery, and vulnerability remediation.
• Support shell scripting for automation and operational tasks.

Windows Administration

• Install, configure, and maintain Windows Server environments.
• Manage Active Directory, DNS, DHCP, Group Policy, file services, and server roles.
• Perform Windows patching, hardening, monitoring, and troubleshooting.
• Support user access, server security, certificates, and permissions.
• Troubleshoot Windows performance, event logs, services, and connectivity issues.

Nutanix Administration

• Support and administer Nutanix AHV / Prism Central / Prism Element.
• Manage virtual machines, clusters, storage, snapshots, and resource allocation.
• Monitor Nutanix cluster health, capacity, alerts, and performance.
• Support VM provisioning, migration, backup, recovery, and lifecycle operations.
• Assist with Nutanix upgrades, patching, and hardware-related coordination.

About the Role

We are looking for a results-driven Senior Database Administrator to join our Managed Services team and drive enterprise-grade database reliability, security, and performance across mission-critical environments. This role is ideal for a seasoned Oracle and Microsoft SQL professional who thrives in a high-availability 24x7 operations setting and is passionate about delivering operational excellence at scale.

You will be responsible for end-to-end database administration, performance engineering, and L2/L3 support for enterprise systems. You will lead database optimization, hardening, migration, and automation initiatives, while partnering closely with internal teams and customers to uphold system integrity and ensure seamless business continuity.

Key Responsibilities

Database Operations & Performance Management

• Manage and administer Oracle and SQL Server databases in a 24x7 enterprise environment
• Conduct daily database health checks, performance tuning, optimization, and capacity planning
• Implement database security measures, hardening standards, and patches
• Automate database setup, backup, restore, and monitoring processes

Database Administration & Maintenance

• Create and configure database structures, files, logs, indexes, and storage allocations
• Oversee housekeeping activities, object validation, fragmentation checks, and re-indexing
• Verify database integrity during system upgrades, deployments, and maintenance windows

Incident & Problem Management

• Respond to database alerts, anomalies, and incidents with timely troubleshooting and root cause analysis
• Work with service desk teams, customers, and third-party vendors to resolve database-related issues quickly
• Support DR execution and ensure successful rebuilds for production or DR systems

Documentation & Reporting

• Maintain accurate documentation including deployment guides, checklists, operations manuals, and DR procedures
• Prepare monthly reports on database uptime, performance, and growth trending
• Produce ad-hoc investigative reports for audits, capacity planning, and problem resolution

Requirements

• Bachelor’s Degree in IT, IS, Computer Science, or related disciplines
• Minimum 5 years of hands-on Oracle and Microsoft SQL database administration experience
• Strong proficiency with Oracle 12c/19c, Oracle RAC, SQL Server 2016–2022, and cloud environments (Azure/AWS)
• Skilled in database backup, recovery, security implementation, tuning, and high-availability environments
• Solid understanding of UNIX and Windows OS
• Strong analytical, troubleshooting, and communication skills
• Ability to work independently in a fast-paced operational environment
• Experience supporting government sector environments is preferred

Please send your detailed resume in MS Word format to resume@goldtecHRs.com with

• Education Level
• Working experiences
• Each employment background
• Reason for leaving each employment
• Last drawn salary
• Expected salary
• Date of availability

• Minimum 4-8 years of experience in MSSQL 2019/2022/2025 Database Administration.

• Perform production support administration tasks including proactive monitoring, maintenance and on-call support to ensure availability and performance requirements are met.

• Involve in operational automation process that covers monitoring, maintenance and standard changes.

• Provide root cause analysis for problems and take action to mitigate future errors.

• Support the operations team in capacity planning, volumetric analysis, execution of database change requests.

• Serve as a technical expert for project teams throughout the implementation and maintenance of assigned projects.

• Monitor and refine processes, procedures, and systems to optimize operational stability and / or integrity and recommends and / or implements improvements.

• Demonstrate the ability to write complex shell scripts for operational maintenance and automation.

• Experience in upgrade and patching database instances across multiple Database Management Systems with minimum disruption to application.

• Hands on experience in troubleshooting on patching issue and raise case with vendor, follow up for fixing.

• Coordinate with application team on decision and schedule to patch. Prepare the documents to raise Change Request.

This job advertisement is posted by:

Tan Geok Khim (Deng Yuqin) (R22107857)

A-IT Software Services Pte Ltd

EA License No: 24C2345

“By submitting your application for this position, you consent to the collection, use, and disclosure of your personal data by A-IT Software Services and its recruitment partners, including Employment and Employability Institute Pte Ltd, for the purpose of i) employment facilitation and ii) data and statistical analysis. You may find out more information on the PDPA policies at [A-IT Software Services PDPA website] and [https://www.e2i.com.sg/pdpa/].”

• up to 2 months contract end bonus
• contract convertible to perm
• either july or august start
• Training in HPC will be given

Responsibilities

• Operate and maintain core data centre switching across L2/L3, including routing protocols (BGP, OSPF), high-availability (HSRP/VRRP), and link aggregation
• Support enterprise switching platforms (such as Aruba, Arista, or Cisco Nexus class) in a change-controlled environment
• Administer enterprise firewall and VPN platforms, including access and policy upkeep
• Monitor network health, analyse errors and counters, and triage incidents
• Execute changes within approved maintenance windows, with full ITSM evidence and rollback discipline
• Apply firmware and software updates in line with approved standards
• Support SDN administration and report configuration drift
• Maintain network documentation and utilisation reporting

Requirements

• At least 2 years in enterprise network support, including L2/L3 routing and switching in a production data centre or mission-critical environment
• Hands-on experience with firewall, VPN, and SDN administration
• CCNA and ITIL Foundation, or willingness to obtain them (certification fully sponsored by the employer)
• A strong willingness to learn, since full vendor training is provided

Tyson Jay Management Pte Ltd | EA License No.: 24C2479

Ivan Lim | EA Personnel No.: R1109856

• up to 2 months contract end bonus
• contract convertible to perm
• either july or august start
• Training in HPC will be given

Responsibilities

• Manage the full lifecycle of Linux servers, from provisioning and configuration to patching and decommissioning
• Maintain system baselines, golden images, and configuration consistency across the server fleet
• Operate enterprise rack servers running RHEL across compute and management functions
• Apply security patches and hardening in line with approved standards
• Support virtualisation platforms where required
• Run daily health checks, resolve incidents, and verify fixes after implementation
• Back up and restore system configurations, and keep runbooks and records current
• Execute approved changes within defined maintenance windows

Requirements

• At least 3 years in a Linux systems administration role
• Strong hands-on Linux administration is essential (RHEL, Rocky, or CentOS in production). This role is tested on practical depth, not certification alone.
• RHCSA and ITIL Foundation, or willingness to obtain them (certification fully sponsored by the employer)
• A strong willingness to learn, since full vendor training is provided

Tyson Jay Management Pte Ltd | EA License No.: 24C2479

Ivan Lim | EA Personnel No.: R1109856

Job Description &Requirements

Key Responsibilities:

• Administer and support cloud-hosted database platforms across Azure and AWS environments, including both PaaS and IaaS deployments.
• Manage and maintain Azure Cosmos DB, Azure Database for PostgreSQL, Azure Database for MariaDB, and AWS PostgreSQL databases.
• Perform routine database health assessments, backup validation, recovery testing, and disaster recovery activities.
• Monitor database performance, availability, and system alerts to ensure operational stability.
• Analyze and optimize database performance through query tuning, indexing strategies, and configuration improvements.
• Plan and manage database capacity, including storage, memory, CPU, and resource utilization forecasting.
• Implement and maintain database security controls, user access management, and data protection policies.
• Execute database patching, software updates, and version upgrades while minimizing service disruption.
• Lead incident resolution, perform root cause analysis, and implement preventive measures for recurring issues.
• Review and remediate database security vulnerabilities identified through security assessments and monitoring tools.
• Conduct database audits and support compliance reporting requirements.
• Collaborate with application, infrastructure, security, and operations teams to deliver database support and enhancements.
• Develop and maintain operational procedures, technical documentation, and knowledge base articles.
• Provide timely support for critical incidents and business-driven ad hoc requests.

Qualifications:

• Bachelor’s degree in computer science, Information Technology, Engineering, or a related discipline.
• Minimum 5 years of experience in database administration, with significant exposure to cloud-based database platforms.
• Proven experience managing PostgreSQL and MariaDB databases in enterprise environments.
• Hands-on experience supporting Azure and AWS cloud services.
• Mandatory hands-on experience administering and supporting Windows and Linux servers in cloud environments.
• Strong understanding of database lifecycle management, high availability, disaster recovery, and security best practices.
• Experience working within IT service management frameworks and operational support environments.
• Excellent analytical, troubleshooting, communication, and documentation skills.
• Experience working in GCC environments will be an added advantage.

Preferred Certifications:

• Azure Database Administrator Associate
• Azure Administrator Associate
• AWS Certified Database – Specialty
• AWS Certified SysOps Administrator – Associate
• PostgreSQL Professional Certification (EDB or equivalent)

Interested candidates, please click "APPLY" to begin your job search journey and submit your CV directly through the official PERSOL job application platform - GO Mobile.

We regret to inform you that only shortlisted candidates will be notified.

Navarro Reyanelle Gelangre | REG No : R1870995

PERSOL SINGAPORE PTE LTD | EA License No : 01C4394

This is in partnership with Employment and Employability Institute Pte Ltd (“e2i”). e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nation-wide manpower and skills upgrading initiatives. By applying for this role, you consent to e2i’s PDPA.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd and its affiliates to collect, use and disclose your personal data for the purposes set out in the Privacy Policy available at https://www.persolsingapore.com/policies. You acknowledge that you have read, understood, and agree with the Privacy Policy.

Job Overview

We are seeking a System Administrator to manage and support enterprise infrastructure environments, covering server provisioning, system configuration, security hardening, and operational readiness. This role is critical in ensuring systems are stable, secure, and fully compliant before deployment into production.

The ideal candidate will have hands-on experience in system administration, strong exposure to infrastructure environments, and the ability to coordinate across multiple technical teams.

Key Responsibilities

System Administration & Infrastructure

• Provision and configure servers, including virtual machines and OS clustering
• Perform system setup activities such as domain joining, AD/OU configuration, and environment preparation
• Support database setup in collaboration with DBA teams
• Configure load balancers, firewall rules, and system connectivity

Platform & Tool Administration

• Install and configure enterprise tools including monitoring, backup, and system management platforms
• Support onboarding of infrastructure and security tools (e.g., SIEM, EDR, monitoring solutions)
• Manage SSL certificate installation and system-level configurations

Security & Compliance

• Perform vulnerability scans and support remediation activities
• Execute OS hardening and patching prior to production deployment
• Support risk assessment processes and ensure compliance with security policies
• Assist in privileged access management setup (e.g., CyberArk or equivalent)

Testing & Operational Readiness

• Conduct system validation including HA/failover testing
• Perform backup and restoration testing to ensure data integrity
• Support go-live readiness, including checklist completion and approvals
• Prepare and maintain system documentation and operation guides

Coordination & Support

• Collaborate with network, application, DBA, and security teams
• Support change management processes including CAB approvals
• Coordinate with stakeholders to ensure timely delivery of system setup and deployment

Requirements

Technical Skills

• Experience in system administration (Windows/Linux environments)
• Strong knowledge of server setup, virtualization, and clustering
• Familiarity with Active Directory, DNS, and network fundamentals
• Experience with backup, monitoring, and system integration tools

Security & Governance

• Exposure to OS hardening, patching, and vulnerability management
• Familiarity with SIEM, EDR, and security best practices
• Understanding of risk assessment and compliance requirements

Preferred Skills

• Experience with tools such as QRadar, SolarWinds, CyberArk, or similar
• Knowledge of ITIL processes and change management workflows
• Experience in enterprise or regulated environments is an advantage

Key Attributes

• Strong troubleshooting and problem-solving skills
• Detail-oriented with structured approach to system management
• Ability to handle multiple tasks in a fast-paced environment
• Good communication and stakeholder coordination skills

Please send your detailed resume in MS Word format to resume@goldtecHRs.com with

• Education Level
• Working experiences
• Each employment background
• Reason for leaving each employment
• Last drawn salary
• Expected salary
• Date of availability

Responsibilities

• Manage the full OS lifecycle including installation, configuration, patching, and upgrades across HPC environments
• Monitor system performance across compute nodes, login nodes, and HCI infrastructure, ensuring reliability and uptime
• Perform troubleshooting and root cause analysis for system-level issues and incidents
• Support configuration management and automation using scripting and relevant tools
• Work with internal and external teams to resolve incidents and maintain service continuity
• Participate in on-call rotation to support critical escalations
• Ensure adherence to operational standards, documentation practices, and ITIL processes

Requirements

• At least 3 years of experience in system administration, or infrastructure operations
• Strong hands-on experience with Linux (preferably Red Hat Enterprise Linux)
• Familiar with cluster management, job scheduling, and monitoring tools
• Proficiency in scripting (e.g. Bash, Python) and configuration management tools (e.g. Ansible, Puppet, Chef)

Tyson Jay Management Pte Ltd | EA License No.: 24C2479

Ivan Lim | EA Personnel No.: R1109856

Responsibilities:

• Reviewing and optimising SQL queries written by application developers to ensure optimal performance and adherence to database standards
• Assisting in database design activities, including table structures, indexes, and relationships to support new application features or enhancements
• Troubleshooting database-related issues reported by application teams, including SQL error codes, performance problems, and data integrity concerns
• Supporting database changes through the development lifecycle (DEV, TEST, UAT, PROD), including coordinating database object migrations between environments
• Monitoring application database performance and implementing necessary tuning measures like reorganizing tablespaces, updating statistics, and adjusting buffer pools
• Providing guidance to application developers on DB2 best practices, coding standards, and efficient query writing techniques
• Supporting application testing activities by helping with data refresh requests, test data preparation, and database-related test case validation

Requirements

• Strong background in IT, Computer Science / Computer Engineering, or related discipline
• Minimum 5 years of relevant working experience in the above technology is preferred.
• Relevant experience in the following would be advantageous:
• Working with JCL (Jon Control Language)
• Experience in VSAM and other mainframe storage concepts
• Familiar with database utilities and tools
• Experience with database backup and recovery procedures