114 Oracle Certified Professional jobs in Singapore

Senior Database Management Engineer
Join to apply for the Senior Database Management Engineer role at NETS.
The Technology Division at BCS is responsible for the operations, maintenance, and support of BCS applications such as FAST, Giro, CTS, PayNow, SGQR, TFR, eGIRO and its critical infrastructure, ensuring its operational stability, regulatory compliance, and service reliability.
The IT Infrastructure Department under Technology ensures the resilience, security, and high-performance of BCS’ technology infrastructure across various functions of service monitoring, incident management, and technical support. The team ensures seamless operation, maintenance, and strategic growth of core infrastructure components, including networks, servers, storage, middleware, and databases.
The Senior Database Management Engineer is responsible for the maintenance of the databases and ensuring 24/7 database availability in the production environments relating to online payment services in BCS.
Key Responsibilities
Establish database performance baseline and executing workload tests such as replication, backup & recovery, log shipping, scalability, and partitioning.
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.
Work closely with stakeholders to support the application development lifecycle by building an effective database environment and maintaining the proper database structure requirements.
Create primary database storage structures (filesystems, tablespaces); and assist in primary objects (tables, views, indexes) creation 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 meet established Service Level Agreements.
Develop and maintain the database standards and operating procedures that aligned to NETS Cyber Security and IT policies, procedures, and service management frameworks.
Consult, analyse, assess and implement action plans to mitigate risks in relation to data management.
Provide recommendations to management and related stakeholders on the technology roadmap and database integration with enterprise and/or cloud platforms.
To be on 24/7 standby rotational basis to respond to incidents and monitoring alerts.
Oversee the introduction and integration of innovative database solutions, including automation to enhance efficiency and scalability.
Requirements
Education and Experience
Bachelor’s degree in Information Technology, Information Systems, Computer Science, or a related field.
Minimum of 6 years of experience in database administration and operation management in Oracle (Primary), MariaDB, Microsoft SQL Server.
Experience in Enterprise Database administration, architecture, design and solutioning.
Experience with high-availability database technology like clustering (RAC cluster) and replication (Data-guard & Gloden-Gate).
Skills and Knowledge
Strong knowledge in database design, development, and administration in high volume, large scale and data intensive environment with relational & distributed databases.
Good working knowledge on automation and orchestration with proven record of accomplishment. Skilled in tools such as Puppet, Ansible & Kubernetes.
Strong knowledge of system administration in Red Hat Linux (RHEL) & Windows Server will be an added advantage.
Strong analytical and project management skills, with the ability to juggle multiple projects with various timelines in a fast paced and dynamic environment.
Familiar with ITIL processes such as Change, Incident Management.
Proficient in database monitoring tools (Oracle Enterprise Manager, MySQL Enterprise Monitor, MONyog).
Excellent ability to communicate technical and strategic information effectively across all organisational levels, fostering collaboration and alignment.
Referrals increase your chances of interviewing at NETS by 2x.
Get notified about new Senior Database Engineer jobs in Toa Payoh, Central Singapore Community Development Council, Singapore.
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Epergne Solutions is looking for a Oracle DBA.

Responsibilities

• Design and implement robust database administration solutions including resource management, security, backup and recovery, performance monitoring and tuning, data management and capacity planning, multi-threading and parallelism, planning and implementing failover between database instances.
• Provide necessary architectural oversight for any implementation, recommendation or changes in supported environments initiated through periodic reviews, audits conducted by internal delivery assurance groups or by client initiated audits or requests.
• Assist in automation activities where-ever possible from design through development and deployment
• Technical documentation skills
• Share domain and technical expertise, providing technical mentorship and cross-training to other peers and team members
• Assist developers with complex query tuning and schema refinement
• Be part of new implementation projects and will be responsible to prepare the pre-implementation plan for such projects - internal or external as may be required from time to time for implementation by the Implementation Teams
• Independently analyze, solve, and correct issues in real time, providing problem resolution end-to-end.
  Apply data modeling techniques to ensure development and implementation support efforts meet integration and performance expectations

Skills Required

• Possess a degree in Computer Science/Information Technology or related fields.
• Minimum 10 years of experienced in DBA who has worked on Oracle and any other RDBMS.
• Should have experience Installation, Administration and Troubleshooting in Operating Systems - Linux (RedHat, Fedora, CentOS) Windows Server
• Hands-on experience in building database, writing database code like functions, procedures, stored procedures, triggers etc.
• Working experience on Oracle RAC & Data Guard is a must.
• Strong experience with performance optimization and tuning with database applications is a must
• Complete architectural knowledge on Oracle Database engines
• Strong knowledge of backups, restores, recovery models, database shrink operations, Clustering, Database mirroring, Replication
• Ability to detect and troubleshoot Oracle Server related CPU, Memory, I/O, disk space and other resource contention
• Exposure to large OLAP modeling, star schema is an advantage

JOB DESCRIPTION:-

• Has 4+ years' experience in Oracle Database Management ( 9i/10g/11g/12c )
• Experience in Backup / Recovery
• Hands on experience in Installation of high availability Oracle RAC environment (2/3/4 node clusters)
• Proven expertise in supporting Grid Infrastructure (Cluster ware, ASM, Disk Groups), Private Network for Interconnect and Public Network (VIP, SCAN),
• OCR and Voting Disk, Cluster verify utility (cluvfy)
• Installation, Configuration, administration and operations support of Oracle Golden Gate
• Knowledge in supporting Exadata Database Machine
• Troubleshooting of Performance and Tuning problems in Oracle database using tools like AWR, ASH, ADDM, OEM Grid Control and manual scripts.
• Install, configure and manage Oracle on Unix & MicroSoft Windows.
• Provide continuous monitoring, troubleshooting, historical and real time performance monitoring of the Oracle in 24 X 7 environment

Key Responsibilities

• Install, configure, and maintain Oracle Databases across development, testing, and production environments.
• Manage and support Oracle Middleware components (e.g., WebLogic, SOA Suite, Oracle Fusion Middleware).
• Oversee and support Oracle Applications deployments, including patches, upgrades, and performance tuning.
• Plan and execute database upgrades, migrations, backup/recovery strategies, and disaster recovery drills.
• Optimize database performance through proactive monitoring, tuning, and capacity planning.
• Implement and manage cloud-based database solutions on Oracle Cloud Infrastructure (OCI) and/or AWS.
• Collaborate with DevOps teams to integrate database environments into Kubernetes (K8s) workflows for automation and scalability.
• Ensure security, compliance, and adherence to organizational policies and standards.
• Troubleshoot complex issues across database, middleware, and application layers.
• Develop and maintain documentation, SOPs, and knowledge base articles.

Required Skills & Experience

• 5+ years of hands-on experience as an Oracle DBA in large, complex environments.
• Strong knowledge of Oracle Database 19c (installation, configuration, performance tuning, backup/recovery).
• Experience with Oracle Middleware (e.g., WebLogic Server, SOA Suite).
• Experience working with Oracle Applications (,Fusion Apps, or similar).
• Proficiency in deploying and managing databases on OCI and/or AWS.
• Familiarity with Kubernetes and containerization for database operations.
• Solid understanding of database security, high availability (RAC, Data Guard), and disaster recovery concepts.
• Scripting skills (Shell, Python, or similar) for automation.
• Excellent problem-solving, communication, and teamwork skills.

Local Banking client

Responsibilities

• Create and maintain all databases required for development, testing education and production usage.
• Perform capacity planning required to create and maintain the databases. Closely with system administration / Infra staff to understand the landscape of the Oracle Physical Server and databases.
• Proactively monitoring the database's health and taking preventive or corrective action as required
• Work as part of a team and provide 24x7 support
• Performs ongoing tuning of the database instances.
• Install new versions of the Oracle RDBMS and its tools and any other tools that access the Oracle database.
• Plans and implements backup and recovery of the Oracle database"

Skills/Requirement

• Degree in Information Systems, related field or equivalent working experience preferred
• 5 years’ experience with database administration
• Experience in Manage User Role and Privileges and provide report for Database Audit
• Working knowledge on High availability in Oracle Environment– RAC, Dataguard, Clustering, Golden Gate, Replication
• Disaster Recovery Plan, Shell Scripting knowledge, Database Migration / Upgrades
• Standards based on user requirements using PL/SQL, , Oracle Forms/Reports, ADF Framework.
• Writing SQL, PL/SQL programs, Packages, Stored procedures, Functions and Triggers to automate the interface processes for daily/incremental loads.

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

PERSOLKELLY Singapore Pte Ltd • EA License No. 01C4394 • EA Registration No. R (SUJA THERESA FRANCIS)

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 PERSOLKELLY 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 . You acknowledge that you have read, understood, and agree with the Privacy Policy.

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Key Responsibilities

· Handle complex incident management

· Monitor and manage day-to-day service operations to ensure the smooth functioning of systems and processes

· Coordinate with internal teams and external vendors to manage service requests, incidents, problems and ensure adherence to SLAs

· Analyze operational data to identify trends, bottlenecks, and areas for improvement in service processes

· Develop and maintain operational procedures to enhance efficiency and minimize service disruptions

· Collaborate with technical teams to address product-related service issues and recommend improvements

· Conduct root cause analysis for recurring incidents and work with problem management or expert service improvement on findings root cause to implement solutions

· Ensure documentation is up to date for all operational processes, incidents, and service management workflows

· Proactively identify opportunities for automation and process optimization to reduce manual intervention and increase operational efficiency

· When/where required, be contactable for escalations and support, on and on-call standby basis during out-of-date hours.

· Deploy Changes as and when needed or based on business requirement

Experience

Minimum 3 years' experience in application/system support domain. Must have dealt directly with external customers delivering to SLAs.

· Operating System: RHEL 7/8

· Database: Oracle 19c, RAC, DB/HSM Vault, Data Masking, Golden Gate, Active Data Guard

· Minimum 2 - 3 years' experience in ACM domain, where applicable.

· Airline experience and/or ATI know-how

Job Types: Full-time, Permanent

Pay: Up to $11,000.00 per month

Benefits:

• Additional leave
• Health insurance

Experience:

• Oracle RAC: 5 years (Preferred)
• oracle DBA: 6 years (Preferred)

About the Role

We are seeking a highly skilled Oracle Database Administrator with deep expertise in Exadata, RAC, performance tuning, and database operations. The ideal candidate will bring extensive hands-on experience in managing mission-critical databases in complex production environments, with strong technical leadership, troubleshooting, and performance optimization skills.

Job Responsibilities

• Manage and administer large-scale Oracle Exadata environments, ensuring high availability, reliability, and performance.
• Perform installations, upgrades, patching, and migrations of Oracle databases and Exadata systems.
• Conduct database health checks, monitoring, and proactive performance tuning to optimize efficiency.
• Administer and troubleshoot RAC, ASM, Dataguard, and GRID Infrastructure.
• Implement and support backup and recovery strategies using RMAN, datapump, and export/import utilities.
• Automate routine DBA tasks using scripting and database automation tools.
• Collaborate with development teams to analyze and resolve database-related issues.
• Provide 24x7 production support and act as an escalation point for critical incidents.
• Maintain compliance with ITIL-based Change/Release Management processes.
• Document processes, configurations, and troubleshooting steps for knowledge sharing.
• Work closely with offshore vendors and cross-functional teams to ensure seamless operations.

Requirements

• 10–12 years of production support experience as an Oracle DBA, with at least 6 years of hands-on experience with Exadata.
• Proven track record managing high-performance, high-capacity databases in critical environments.
• Strong expertise in Oracle 11gR1/R2 RAC including build, administration, troubleshooting, and tuning.
• Hands-on experience with Clusterware (GRID Infrastructure), ASM, and Dataguard administration.
• Skilled in SQL & database-level performance tuning, backup, and recovery.
• Proficiency in Oracle Enterprise Manager Grid Control for monitoring and management.
• Strong knowledge of Solaris, Linux, and AIX OS, with advanced shell scripting skills.
• Ability to work in a 24x7 global support model.
• Excellent troubleshooting, analytical, and problem-solving skills.
• Strong communication and coordination skills with a collaborative mindset.
• Experience with database automation, ITIL processes, and offshore vendor management.
• ITIL Foundation certification preferred.

Job Description & Requirements
Our client - large financial institution is looking to hire Senior DBA to join their DB production team
Key Responsibilities
Troubleshooting challenging performance issues and developing proactive measures and trend analysis
Monitoring database events and continuously optimizing system performance through troubleshooting and tuning
Provide performance optimization, day-to-day support and maintenance for Oracle , clustering environment for our platform. This includes, but is not limited to: administration, analysis, support, proactive monitoring, troubleshooting, automation, recoverability, failover, security, installation, and design.
Configure, maintain and manage replication
Work with engineering team to automate reactive procedures and promote rapid response to database issues
Design and develop proactive tools and measures to optimize performance and take our platform to the next level of scale
Key Requirements
8+ years of Database Administration experience supporting mission critical relational databases
Experience in Leading a team will be highly desirable
Considerable experience and knowledge of Oracle with good knowledge on RAC
Experience working in replication
Expertise in handling very large databases
Strong analytical and troubleshooting skills
Experience in cloud environment is a plus
Interested candidates please email your latest resume to
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Experience :Minimum of 6 years of hands-on Oracle DBA experience, with at least 3 years in a senior or L3 support role
We are seeking an experienced and highly skilled
Senior Oracle Database Administrator (DBA)
to manage, optimize, and ensure the availability of mission-critical Oracle database systems. The ideal candidate will play a strategic role in both daily operations and long-term infrastructure planning, collaborating with cross-functional teams and providing Level 3 support.
Key Responsibilities:
Manage and administer Oracle databases (12c, 19c, and newer) across production and development environments.
Perform advanced performance tuning, SQL query optimization, and index management to ensure optimal database efficiency.
Design and implement High Availability (HA), Disaster Recovery (DR), and backup solutions using RMAN and Data Guard.
Automate routine tasks using PL/SQL, Shell scripting, or Ansible to improve operational efficiency.
Apply critical patches, manage database upgrades/migrations (on-prem and cloud), and maintain version control.
Enforce database security policies, manage roles, and control user access based on organizational compliance.
Monitor overall database health and proactively address potential issues before they impact operations.
Provide L3 support for complex issues and lead detailed root cause analysis for major incidents.
Collaborate with application development, DevOps, and infrastructure teams to support seamless integration and delivery.
Participate in the on-call rotation and assist with weekend deployments or critical cutover activities as required.
Maintain thorough documentation of database architecture, configurations, procedures, and recovery protocols.
Requirements:
Bachelor’s degree in Computer Science, Information Technology, or a related discipline.
Minimum of 6 years of hands-on Oracle DBA experience, with at least 3 years in a senior or L3 support role.
Strong expertise in Oracle technologies including ASM, RMAN, Data Guard, and GoldenGate.
In-depth knowledge of Oracle internals, performance diagnostics tools (AWR, ASH, TKPROF), and troubleshooting best practices.
Experience working with cloud platforms such as Oracle Cloud Infrastructure (OCI), AWS RDS for Oracle, or Azure Database for Oracle.
Familiarity with ITIL frameworks and incident, problem, and change management processes.
Scripting proficiency in Shell, Python, or similar languages for task automation and monitoring.
Excellent analytical, communication, and interpersonal skills, with the ability to work under pressure in fast-paced environments.
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