Senior Database Services Engineer (Singapore, Singapore)

Singtel; Singapore; On-site; Confidential; Full time

Job summary

Singtel is building an AI-first telco for the future, seeking a seasoned Oracle database administrator. You will manage day-to-day DB operations, including RAC/Cluster environments, RMAN backups, Data Guard DR, and performance tuning.

The role requires strong security hardening, wallet management, and 24x7 incident responsiveness. Ideal candidates hold a Bachelor’s in CS and Oracle Certification, with 3+ years of Oracle experience and exposure to MSSQL, MySQL, PostgreSQL or MongoDB.

Qualifications

• Bachelor degree in Computer Science or equivalent.
• Oracle Professional Certification.
• Minimum 3 years of Oracle experience (Standalone + RAC/Cluster).
• Experience with MS SQL / MySQL / EDB / PostgreSQL / MongoDB; preferably with cluster architectures.
• Patching, backup & recovery, plus performance tuning expertise.
• Knowledge of CIS Benchmarks for database hardening.
• Experience in DR, Audit, Backup & Monitoring of DBs.
• Willingness to provide 24x7 support and shift rosters.

Responsibilities

• Manage day-to-day database administration to meet business needs and SLAs (on‑prem & cloud).
• Handle RMAN backups, DG/DR activities and performance tuning.
• Implement security hardening, encryption and wallet management.
• Carry out database patching and crisis incident response.
• Monitor availability and space, perform regular backups and DR readiness.
• Create and maintain database related documentation and deployments.

Skills

Oracle database

Database performance tuning

Incident management

Security hardening

24x7 support mindset

Education

Bachelor's Degree in Computer Science or equivalent

Oracle Professional Certification

Tools

Oracle RAC

RMAN

DG/DR (Data Guard)

PostgreSQL, MSSQL, MySQL, MongoDB exposure

Job description

An empowering career at Singtel begins with a Hello. Our purpose, to Empower Every Generation, connects people to the possibilities they need to excel. Every "hello" at Singtel opens doors to new initiatives, growth, and BIG possibilities that takes your career to new heights. So, when you say hello to us, you are really empowered to say…“Hello BIG Possibilities".

Singtel is where Technology meets Purpose.

We're building an AI-first telco for the future—connecting people, businesses and communities through trusted networks, intelligent digital services and next-generation technology.

From transforming everyday experiences in mobile, broadband, entertainment and lifestyle services to enabling enterprises with AI, 5G+, cloud, cybersecurity, data centres and digital platforms, we create the technology that powers how millions live, work and connect.

At Singtel, your work creates real impact. You'll solve meaningful challenges, shape critical digital infrastructure and help build secure, resilient and AI-enabled solutions that serve businesses, digital ecosystems and communities across the globe.

This is where BIG Possibilities become reality. Whether you're engineering intelligent networks, advancing sovereign AI cloud platforms, strengthening cybersecurity, designing seamless customer experiences or driving sustainable innovation, you'll be part of teams shaping the future of technology.

Backed by decades of expertise and driven by a culture of continuous learning and innovation, Singtel offers the scale, opportunities and support to help you grow your career while making a difference where it matters most.

How You will Make An Impact:

• The candidate should possess good knowledge and experience with Oracle database from 11g and above .
• Candidate is responsible for the day-to-day operational aspects of database administration to meet the business needs and service level for database in on Prem & cloud/Azure covering ORACLE (11g,12c,19c +..) including RAC & Non RAC plus plus another db flavour MSSQL/SQLMI/MYSQL/POSTGRES/Mongo including cluster.
• Knowledge and experience with Oracle Multitenant (CDB/PDB).
• Manage and troubleshoot the L2 tasks independently
• Provide 2nd level operational database support on functions associated with maintenance of Oracle Server databases plus MSSQL/SQLMI/MYSQL/POSTGRES/Mongo cluster/standalone onprem/cloud including administration, performance, security &hardening, back-up,dataguard configuration and maintenance, reporting, and recovery procedures
• Assist and respond promptly to incident, investigate & provide permanent resolution of incidents escalated.
• Manage database changes through change request process & provide status reports to the relevant parties.
• Monitor & measure the performance & availability of databases proactively; implement corrective actions identified to improve.
• Perform regular security patching for the DBs including RAC/Cluster db.
• Handle service continuity measures, i.e., backup/restore procedures & disaster recovery plan, to ensure continuous operation of the business.
• Good experience with RMAN backup configuration, troubleshooting backup issues.
• Good experience in manage with encryption and wallet management.
• Knowledge with AD integration.
• Diagnosis knowledge based on alert, cluster listener logs to check for the db core issues.
• Performance tuning core db &application sql plan, good knowledge in ready AWR &scripting knowledge
• Manage / maintain &optimise oracle DB space including tablespaces, ASM &database FS, Periodic rebuild to defragment /Space management.
• Manage DB access. Create, Change, delete users accounts as per request following security guidelines.
• Good experience in managing oracle data guard and ensure DG/DR in synch all times and manage DR activities with Switchover/failover.Monitor and maintain database backups.
• Create and maintain database related documents including asset, SOP etc.
• Review & perform application and core db deployments.
• Audit related hardening & Support.
• Prompt 24x7 support.
• Accommodative for Shift/Roster call out.

Skills for Success:

• Minimum Bachelor Degree in Computer Science or equivalent.
• Oracle Professional Certification
• Added advantage if have additional certification like MS SQL /MYSQL/EDB /POSTGRES/MONGO Professional Certification
• Minimum 3 year of experience in Oracle(Standalone +RAC/Cluster)
• Plus work experience on MS SQL /MYSQL/EDB/Postgres/MongoDB
• Extensive experience in managing common Database platform like Oracle, and to have another db flavour PostgreSQL/MSSQL/MYSQL/MONGO/POSTGRES Including Cluster architecture
• Experience in performing database Patching, backup & recovery as well as excellent troubleshooting and performance tuning skill is a must.(Including cluster architecture)
• Implement Database hardening as per CIS Benchmarks.
• Implement and manage DR,Audit, Backup & Monitoring of DBs.
• Strong analytical skills for problem-solving database-related issues.
• Big picture thinking - the ability to see how parts interact with the whole
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