135 Database Administrator jobs in Singapore

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• Database performance analysis, fine-tuning, and optimization
• Database migration and patches
• Implementation of database security features (hardening)
• Automate build, operation, backup, restore, and monitoring of databases
• Technical database documentation
• Daily health checks and monitor scripts (shell, PowerShell)
• Verification of database status and integrity during upgrades or maintenance
• Database housekeeping and optimization activities, including data growth management, creating/reallocating DB files, tables, indexes, rollback segments, and other objects
• Advising Operations Manager and Customers on database issues, new technologies, and innovations
• Developing best practices for cloud database operations
• Incident and problem management

Contract duration: 12 months

Work arrangement: Onsite

Location: Bendemeer

• Database analysis and performance tuning
• Migration, patches, security hardening
• Automation and documentation
• Health checks and integrity verification
• Optimization activities
• Advisory and best practices for cloud operations
• Incident/Problem management

• Certified Oracle and Microsoft SQL Database Administrator with experience in 24x7 enterprise environments
• Bachelor's degree in IT, IS, CS, or Business IT
• At least 5 years supporting Oracle and SQL databases (2016-2022, Azure, AWS)
• Expertise in Oracle 12c/19c, RAC, SQL Server 2016-2022, cloud platforms
• Understanding of services in high-tech environments
• Leadership, independence, analytical skills, and quick problem resolution
• Experience in backup and disaster recovery
• Knowledge of Windows and UNIX OS
• Effective communication, customer service, teamwork
• Preferably with government sector experience

May Anne Ramos (EA Reg no: R1110127)

Peoplebank Singapore Pte Ltd, EA Licence Number: 08C5248

• Mid-Senior level

• Contract

• Information Technology

• Staffing and Recruiting

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NCS is a leading technology services firm that operates across the Asia Pacific region in over 20 cities, providing consulting, digital services, technology solutions, and more. We believe in harnessing the power of technology to achieve extraordinary things, creating lasting value and impact for our communities, partners, and people. Our diverse workforce of 13,000 has delivered large-scale, mission-critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.

Database Administrator

What will you do?

• Lead and manage database changes through change request process & provide status reports to the relevant parties.
• Ability to manage customer in data modeling meeting and review meeting.
• Assist and respond promptly to incidents, investigate & provide temporary &/or permanent resolution of incidents escalated.
• Involvement in performance tuning, performance management, setup of Databases.
• Lead and monitor & measure the performance & availability of databases proactively; implement corrective actions identified to improve performance & availability.
• Lead and monitor the agreed service level, document & maintain the configuration of the databases; provide regular reporting to relevant parties.
• Ensure service level meets requirements. Propose and implement action plan when required. Lead and monitor databases according to standard operations procedures.
• Lead in the implementation of service continuity measures, i.e., backup/restore procedures & disaster recovery plan, to ensure continuous operation of the business.
• Involve and lead in database implementation.
• Keep abreast of database technologies.
• A good team player and leader.

The ideal candidate should possess:

• More than 5 years of experience in installation, configuration, & management of SQL Server databases is mandatory.
• Certification in SQL server.
• More than 2 years of experience of Advanced to Expert skills in all the following:
  • SQL Server Clustering & AlwaysOn Availability Group setup & management.
  • Writing & debugging complex SQL statements, stored procedures & functions.
  • Must be able to design & implement relational tables using the proper degree of normalization & denormalization.
  • ER-Diagram Designer Tools.
  • Performance Tuning.
  • Proper index design & able to identify good & bad index design.
  • Identify unused indexes & missing indexes.
  • Identify bottlenecks in SQL Statistics, execution plans.
  • Database Performance Monitoring using the following:
    • SQL Profiler Trace.
    • Extended Events.
    • Performance Monitoring Tool on SQL Server and Windows Counters.
    • Third-Party DB monitoring tools.
  • Database Performance Maintenance:
    • Index Reorganization/Rebuild.
    • Update Statistics.
    • Archival Strategies.
  • Experience in setting up & managing of DB replication is a value-add.
  • Experience in Oracle database installation & administration is a value-add
  • Degree in Computer Science or equivalent bachelor certification.

We are driven by our AEIOU beliefs—Adventure, Excellence, Integrity, Ownership, and Unity—and we seek individuals who embody these values in both their professional and personal lives. We are committed to our Impact: Valuing our clients, Growing our people, and Creating our future.

Together, we make the extraordinary happen.

Learn more about us at ncs.co and visit our LinkedIn career site.

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Direct message the job poster from RiDiK (a Subsidiary of CLPS. Nasdaq: CLPS)

Qualifications and Profile

Functional

6+ years of PostgreSQL/Sybase DBA experience in administration and management of IT Database technologies;

Should be a bachelors/masters/engineering graduate or equivalent technical degree in Information Technology or Computer Science;

Knowledge of different domains of IT Security ;

Working & hands-on experience in administering the DB technologies;

Must have experience in working in similar Production setup in Run (Operations) mode;

Ability to apply risk based approach while working on assigned responsibilities;

Experience in defining, implementing, and enforcing Database Security policies for data security solutions;

Must have working experience in a Large enterprise level environment , working experience in financial organization is preferred;

Excellent in analytical, communication and documentation skills;

Ability to organize work and be able to priories work as per the needs of Production Operation’s needs;

Must have strong understanding of ITIL processes and comfortable working in process oriented environment;

Ability to work independently and as well as a part of team and is able to work under minimal supervision;

Should have time management skills and able to manage work in fast moving environment;

Technical

Hands-on experience on Configure and maintain database servers and processes

experience of High Availability (HA) and Disaster Recovery (DR) options for PostgreSQL/Sybase technology

Deployment, integration and administration experience of various components of DB technologies.

Must have experience in defining, designing and configuring Database solution as per the business requirements;

Deploy, upgrade and troubleshooting knowledge on PostgreSQL/Sybase technology solution;

Scripting knowledge (Python,TSQL,shell scripting ) is desirable;

Professional Certifications:

• PostgreSQL/Sybase certified is highly preferred

Work Schedule

Work schedule is mainly focused to support Asia and EMEA (Paris) time zone; however, may have to support during non-offce hours for critical incidents or escalation as per the assigned on-call support requirements;

Work Hours:

7am to 4pm or 2 PM – 11 PM or 4pm to 1am.

About CLPS RiDiK

RiDiK is a global technology solutions provider and a subsidiary of CLPS Incorporation (NASDAQ: CLPS), delivering cutting-edge end-to-end services across banking, wealth management, and e-commerce. With deep expertise in AI, cloud, big data, and blockchain, we support clients across Asia, North America, and the Middle East in driving digital transformation and achieving sustainable growth. Operating from regional hubs in 10 countries and backed by a global delivery network, we combine local insight with technical excellence to deliver real, measurable impact. Join RiDiK and be part of an innovative, fast-growing team shaping the future of technology across industries.

• Seniority level Associate

• Employment type Contract

• Job function Information Technology and Consulting
• Industries IT Services and IT Consulting

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Direct message the job poster from Elliott Moss Consulting

We are seeking a skilled and proactive Oracle Database Administrator to join our team and support the end-to-end management of Oracle database environments. The ideal candidate will be responsible for handling complex incidents, executing performance tuning, managing security, and ensuring database availability, reliability, and compliance across multiple environments.

Key Responsibilities:

Advanced Support & Escalation Handling

• Serve as the escalation point for Level 1 issues related to Oracle database performance, security, storage, and availability.
• Troubleshoot and resolve critical issues including blocking sessions, memory leaks, data corruption, fragmentation, and performance degradation.
• Investigate and resolve audit failures, replication inconsistencies, and access control violations in collaboration with application teams and vendors.

Database Administration & Operations

• Perform Oracle database installations, configurations, and version upgrades (primarily 19c and above).
• Manage backup and recovery procedures using RMAN , including validation and restoration in both test and production environments.
• Conduct routine patching, security updates, and apply Oracle CPU/PSU releases.
• Implement database hardening, audit trail configurations, and ensure adherence to compliance policies.

Change & Release Management

• Review and execute complex change requests and multi-script deployments involving application-level dependencies.
• Manage scheduled jobs within Oracle databases and associated application servers.
• Lead database migrations while minimizing downtime and ensuring seamless application integration.

Performance Monitoring & Tuning

• Conduct proactive health checks and detailed performance tuning (SQL plan analysis, AWR/ASH reports, index optimization, memory configuration).
• Optimize and maintain monitoring tools (Oracle Enterprise Manager, EMS, or custom monitoring scripts).
• Address system alerts including disk space utilization, CPU spikes, job failures, and system hardware issues.

Security & Access Management

• Enforce account and access control policies, including regular user access reviews and password policy enforcement.
• Manage Oracle Wallets and encryption configurations for data security.
• Collaborate with Identity and Access Management teams on domain and local account issues.

Project & Documentation Support

• Participate in onboarding and handover of new applications and environments.
• Contribute to process improvement and database automation initiatives.
• Create and maintain technical documentation, including SOPs, RCA reports, and knowledge base articles.

Required Skills & Qualifications:

• 3–5 years of hands-on experience in Oracle Database Administration (preferably versions 19c and above)
• In-depth knowledge of Oracle architecture, ASM, RMAN, Oracle Data Guard
• Strong skills in SQL tuning , PL/SQL development , and Unix/Linux shell scripting
• Familiarity with Oracle Enterprise Manager and other monitoring/alerting tools
• Experience with ITSM platforms such as ServiceNow and standard change/release procedures
• Ability to manage high-priority tasks independently with minimal supervision
• Willingness to participate in on-call rotation and provide after-hours support when needed

• Seniority level Associate

• Employment type Contract

• Job function Information Technology
• Industries IT Services and IT Consulting

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About ST Engineering

ST Engineering is a global technology, defence, and engineering group with offices across Asia, Europe, the Middle East, and the U.S., serving customers in more than 100 countries where it operates a diverse portfolio of businesses across the aerospace, smart city, defence, and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange.

Our history spans more than 50 years, and our strategy is underpinned by our core values – Integrity, Value Creation, Courage, Commitment and Compassion. These 5 core values guide every aspect of our business and are embedded in our ST Engineering culture – from the people we hire, to working with each other, to our partners and customers.

About Codex Solutions

A joint venture company by ST Engineering Mission Software & Services Pte. Ltd. and HTX (Home Team Science and Technology Agency), Codex Solutions is set up to be a dynamic and forward-looking technology company established to develop cutting-edge software solutions that support and strengthen Singapore’s homeland security efforts. As a mission-driven organisation, we are focused on building strong in-house capabilities that directly address the complex challenges faced by the Home Team.

With a strong emphasis on innovation, product excellence, and impact at scale, Codex Solutions offers a unique environment where purpose meets technology. We are assembling a diverse and talented team of technologists and problem solvers who are passionate about making a real difference. If you're looking to shape meaningful solutions and be part of something bigger — Codex Solutions is where you’ll want to be.

Together, We Can Make A Significant Impact

We are seeking an experienced and versatile Database Administrator (DBA) to manage, optimise, and secure our database infrastructure across multiple platforms and environments. The successful candidate will have a strong foundation in both traditional and emerging database technologies, with hands-on experience in automation, performance tuning, and cloud-based solutions.

Be Part of Our Success

• Implement and manage databases in accordance with designs and specifications provided by technical teams.
• Deploy and configure data storage solutions across relational, NoSQL, and cloud environments.
• Recommend and apply tuning strategies and operational improvements to enhance performance and efficiency.
• Manage cloud-hosted database services, optimising for cost, availability, and scalability.
• Define and enforce data lifecycle policies, covering data retention, archival, and deletion.
• Develop and maintain robust backup and recovery procedures to ensure data integrity and business continuity.
• Maintain database security, access control, and compliance with organisational and regulatory standards.
• Automate routine administrative and monitoring tasks using scripting and automation tools.

Qualities We Value

• At least 5 years of hands-on experience in database administration across various architectures.
• Proficient in Microsoft SQL Server, PostgreSQL, or equivalent.
• Experience with systems such as Cassandra, MongoDB (preferred).
• Familiarity with AWS S3, Nutanix Object Store, or similar technologies (preferred).
• Knowledge of Neo4j or similar, including relevant query languages (preferred).
• Strong foundation in query optimisation, indexing strategies, and database performance tuning.
• Understanding of retention, archival, and disposal strategies.
• Proficient in automation tools and scripting languages (e.g., Python, PowerShell, Bash) for administrative efficiency.

Our Commitment That Goes Beyond the Norm

• An environment where you will be working on cutting-edge technologies and architectures.
• Safe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated.
• Meaningful work and projects that make a difference in people’s lives.
• A fun, passionate and collaborative workplace.
• Competitive remuneration and comprehensive benefits.

Direct message the job poster from HCLTech

About the Role

HCL Technologies singapore is seeking a skilled and motivated Database Operations Engineer to join our dynamic infrastructure team. The ideal candidate will possess strong hands-on experience across at least two database platforms such as MySQL/MariaDB, PostgreSQL/EDB, Oracle, MSSQL, DB2, MongoDB, or Redis. This position plays a critical role in ensuring the high availability, performance, and resilience of production database environments, with support extending across all major RDBMS and NoSQL technologies.

Experience: 2–8 Years

Work Schedule: Rotational shifts (24x7 support, including nights, weekends, and holidays)

Employment Type: Full-Time

Key Responsibilities

• Proactively monitor and manage alerts across multiple database technologies (MariaDB, PostgreSQL, EDB, Oracle, DB2, MSSQL, Redis, MongoDB) and take corrective action.
• Conduct daily health checks on production databases to maintain availability, security, and performance.
• Perform and verify backup operations; implement recovery and point-in-time restore procedures.
• Manage database performance and availability, including incident and problem management in coordination with the Major Incident Management (MIM) team.
• Execute database patching and version upgrades (manual and via Robosys).
• Collaborate with users and third-party vendors to resolve issues affecting database service levels.
• Identify and implement opportunities for automation and process optimization in database operations.
• Ensure compliance with industry standards, security protocols, and banking regulatory requirements.

Technical Requirements

• 2–8 years of hands-on experience in database administration or operations.
• Experience with at least two of the following database systems:

Proficiency in:

• MariaDB: replication, backup & restore, point-in-time recovery, performance & security tuning.
• Oracle/DB2: archive logging, backup concepts, LRQ and LOCKWAITS analysis.
• Redis: database and shard monitoring, sync status checks.
• Familiarity with patch management, Robosys-based upgrades, and database resiliency practices.
• Basic command-line proficiency in Linux (RedHat) , AIX , and Windows OS environments.

Preferred Qualifications

• Bachelor's degree in Computer Science, Information Technology, or a related field.
• Exposure to banking, finance, or regulated environments is a strong advantage.
• Relevant certifications (Oracle, PostgreSQL, MongoDB, etc.) are a plus.

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Information Technology
• Industries IT Services and IT Consulting and Banking

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Job Responsibilities

• Daily health monitoring of production database system and data integrity checks

• Database migration and performance monitoring

• System / data backup, disaster recovery

• Carry out periodical production patch and upgrade management

• Automate and monitor huge file transfer for archiving

• Work with users and vendors to take timely and appropriate steps to resolve and troubleshoot issues impacting service levels and conduct root cause analysis

• Enforce security standards for databases

• Keep abreast of advances in database technologies to identify opportunities to fine tune and optimize databases and related system infrastructure

• Database administration and management (capacity planning, installation, backup, recovery, monitoring, performance optimizations, troubleshooting, load/hardware analysis mapping, security etc.)

• Query optimization and tuning skills, analysis and troubleshooting interactions between databases, operating systems and applications with regard to performance and resources usage

• Creating database tables, setting up indexes, data constraints and DB views Analyze, predict through trend analysis and resolve database system, storage and application issues

• Review existing software architecture and contribute to improving on the future architecture for stability and a maximum of performance

• Collect and analyze database performance information; identify and implement solutions for performance

Job Requirements

• Degree/Diploma, preferably IT or Engineering-related

• Minimum 1-2 years of working experience in DBA and operation management in MS SQL Enterprise Server

• Proficient in Linux / Unix environment shell scripting

• Familiar with virtualization technologies

• Experience in setting up and supporting database mirroring, failover clustering would be advantageous

• Relevant working experience as an MYSQL/ MARIA DB / MS SQL Database Administrator in production environment would be advantageous

• Managing experience of MS SQL servers (2016, 2019,2022)

• Proactively monitoring database performance and troubleshooting issues
• Working cross-functionally with our engineers and analytics professionals to optimize queries, fix performance bottlenecks, improve existing schemas and design new ones
• Creating and maintaining change control and testing processes, reviewing and approving database modifications.
• Design / install/ configure/ manage/ Monitor/ maintain/ Tune/ backup/ security/ Troubleshoot for Oracle and PostgreSQL databases based on Solaris/ Linux.
• SQL Query performance tuning
• Conducting research and making recommendations on data-related products, services, protocols, and standards; planning for future growth of our data asset
• Reviewing development and deployment processes related to databases and identifying areas of improvement (such as online schema changes)
• Creating and maintaining documentation, troubleshooting playbooks, testing failover and recovery plans
• Improving database expertise company wide.
• Ensure data security and integrity, including implementation of access controls, backups, and recovery plans.
• Execute disaster recovery plans and procedures to ensure database availability during system outages or dysfunction.

Disaster Recovery Modifications PostgreSQL Analytics Availability Databases Linux Oracle Troubleshooting Security Research Documentation Testing SQL Planning Design

NCS is a leading technology services firm, operating across Asia Pacific in over 20 cities, providing services and solutions in consulting, digital, technology, cybersecurity and more. We believe in the power of technology to make extraordinary things happen and to create lasting impact and value for our people, communities and partners. We bring together people and expertise to harness the best of technology. Our diverse 12,000-strong workforce has delivered a wealth of large-scale, mission-critical, and multi-platform projects for governments and enterprises in Singapore and the APAC region.

The primary purpose of this role is to ensure the reliability, availability, performance, and security of Oracle databases that support a mission-critical, nationwide government application. The Oracle DBA will support daily operations and maintenance of Oracle environments utilizing Oracle Enterprise Manager (OEM), Audit Vault & Database Firewall (AVDF), and Oracle Data Guard for high availability and security compliance.

This role requires a highly skilled and consultative professional who can collaborate closely with infrastructure and application teams, engage directly with the customer, and adhere to ITIL-aligned processes. The DBA is also expected to support performance optimization, implement enhancements, respond to operational issues, and participate in a 24x7 standby support model to maintain uninterrupted services for a critical government platform

The DBA will manage Oracle RAC and standalone environments across Production, DR, UAT, and Development systems. The role involves ensuring high availability, disaster recovery readiness, performance tuning, patching, and compliance, while also supporting integration with storage, operating systems, and security platforms.

Key Responsibilities:

Operations and Maintenance Activities:

• Administer Oracle RAC, standalone databases, and Oracle Grid Infrastructure.
• Perform daily health checks, space monitoring, log review, and backup validation.
• Manage Oracle databases across all environments (Production, DR, UAT, Development).
• Administer Oracle Data Guard for high availability and DR (monitor, switchover, failover).
• Monitor databases using Oracle Enterprise Manager (OEM) and configure alerts.
• Configure and manage Oracle AVDF (Audit Vault and Database Firewall).
• Apply quarterly security patches and version upgrades using standardized change processes.
• Perform database cloning, refreshes, object deployments, and schema changes.
• Ensure reliable backup and recovery using RMAN; conduct periodic restore tests.
• Coordinate with OS and storage teams to troubleshoot performance and capacity issues.
• Review and tune SQL queries.

Support and Coordination:

• Work closely with Infra and Application teams to ensure integration, performance, and availability.
• Participate in Change meetings, deployment planning, and DR exercises.
• Investigate and resolve incidents and problems; perform root cause analysis and implement permanent fixes.
• Collaborate with security teams for audits and enforcement of database security controls.
• Engage directly with government customer representatives to capture and deliver evolving requirements.

Consultation and Optimization:

• Propose and implement improvements to database design, indexing, and storage layout.
• Support new architecture or capacity expansion planning in consultation with stakeholders.
• Document all changes, configurations, and recovery plans as per project and audit requirements.

Requirements:

Technical Skills:

• 8 to 10 years of hands-on experience as an Oracle DBA in a 24x7 production environment.
• Strong experience with:
  • Oracle RAC (Real Application Clusters)
  • Oracle Enterprise Manager (OEM)
  • Oracle Data Guard (configuration, monitoring, switchover/failover)
  • Oracle AVDF (Audit Vault and Database Firewall)
  • Oracle RMAN and ASM
  • Performance tuning tools (AWR, ASH, SQL Tuning Advisor, TKPROF)
  • Shell scripting and PL/SQL
• Working knowledge of SAN storage interaction with Oracle ASM and database performance.

Soft Skills:

• Strong consultative and communication skills to interact with technical teams and government stakeholders.
• Ability to work independently in a high-pressure, production-critical environment.
• Strong documentation, reporting, and analytical skills.
• Certifications:
• Oracle Certified Professional (OCP) – Database Administration (Preferred)
• ITIL Foundation Certification (Preferred)