Data Engineer

DNA AI TECHNOLOGIES PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

DNA AI TECHNOLOGIES PTE. LTD. in Singapore seeks a Senior L3 Oracle/EBS DBA to own escalations, drive high-severity incident resolution, and ensure zero-downtime production for Oracle Core, EBS R12.x, 12c/19c databases in RAC.

The role partners with Development, Service Managers, Architects, and Project Managers on project delivery, roadmaps, and platform enhancements. Strong experience in Exadata, Exadata patching, and HA is required in a BFSI context.

Qualifications

• Experience as an Oracle Core & Apps DBA with EBS R12.x and RAC environments.
• Exadata & High Availability Architecture with ExaCC, RAC, and Data Guard.
• ExaCC patching across DOM0, DOMU, GRID, and DATABASE layers.
• Upgrades/Migrations: 11g to 12c/12c to 19c, EBS 12.1.3 to 12.2.x upgrades.
• EBS High Availability designs: RAC, Active Data Guard; load-balanced Web/Forms nodes; PCP.
• Patching & Maintenance: CPU/PSU patches (OPatch/ADOP), cloning, complex multi-node installs.
• Troubleshooting & Performance Tuning: CM, Apache, DB, and SQL tuning.

Responsibilities

• Act as senior L3 authority for Oracle Core & EBS; drive rapid resolution of high-severity incidents.
• Lead diagnostic efforts during disruptions and ensure zero-downtime execution.
• Collaborate with Development, Service Managers, Architects, and Project Managers on roadmaps and platform enhancements.

Skills

Oracle Core & EBS

Exadata & HA

ExaCC Patch

Upgrades & Migrations

EBS HA Design

Patching & Maintenance

Troubleshooting & Tuning

Automation & Scripting

GoldenGate

OCI/Cloud

BFSI Domain

Tools

OPatch

ADOP

Shell

Ansible

Python

Job description

Key Responsibilities

• Technical Escalation & High-Severity Incident Management (L3 Support) Act as the senior L3 technical authority for Oracle Core and EBS databases, supporting day-to-day BAU tasks, Incident Management, and Requests for Change (RFCs). Lead diagnostic efforts during complex technical disruptions and actively engage to drive rapid resolution of high-severity/critical production incidents. Guarantee overall production readiness across all supported database environments in alignment with strict Service Level Agreements (SLAs). Review proposed technology changes to identify potential operational risks and ensure zero-downtime execution.
• Service Improvement & Infrastructure Optimization Proactively propose continuous service improvements for all Oracle and EBS services across the organization. Provide reactive and proactive technical expertise to safeguard system availability, performance, and disaster recovery capabilities. Champion operational efficiency by adhering to global IT frameworks and LEAN-CA-CIB best practices. Maintain global IT perspective and anticipate interrelationships across interconnected organizational platforms.
• Strategic Collaboration & Transformation Partner closely with technical peers, Development teams, Service Managers, Solution Architects, and Project Managers on project delivery and technical roadmaps. Facilitate strategic IT transformation initiatives and recommend future directions for platform enhancements. Continuously evaluate emerging database technologies and industry trends to assess their feasibility for integration into Bank operations.

Technical Qualifications & Skills

Mandatory Requirements (Must Have)

• Oracle Core & EBS Expertise: Deep technical expertise as an Oracle Core & Apps DBA with extensive hands-on experience in EBS R12.1.x and R12.2.x environments, as well as Oracle 12c and 19c databases within RAC environments.
• Exadata & High Availability Architecture: Hands-on working experience with Oracle ExaCC , RAC , and Data Guard (Physical Standby, Snapshot Standby, Switchover, and Failover).
• ExaCC Patching: Proven track record in executing ExaCC patching across DOM0, DOMU, GRID, and DATABASE layers.
• Upgrades & Migrations: Proven record of successfully executing at least one database upgrade from 11g to 12c / 12c to 19c, alongside an EBS Application upgrade from 12.1.3 to 12.2.x.
• EBS High Availability Design: Deep experience maintaining multi-node EBS High Availability setups, including:
  Database Nodes: RAC, Active Data Guard.
  Web/Forms Nodes: Load-balanced Web and Forms nodes, Servlets, DNS/Network configuration.
  Processing & Nodes: Parallel Concurrent Processing (PCP) load distribution and adding EBS nodes within shared application tier filesystems.
• Patching & Maintenance: Proficiency in applying CPU/PSU security patches (Opatch and ADOP), performing instance cloning/refreshes, and running installations in complex multi-node environments.
• Troubleshooting & Performance Tuning: Advanced troubleshooting capabilities in resolving critical issues across Concurrent Managers (CM), Apache, and Database engines, alongside expertise in SQL query fine-tuning.

Desirable Requirements (Good to Have)

• Automation & Scripting: Strong scripting skills using Shell , Ansible , or Python to automate repetitive DBA administrative tasks.
• Data Replication: Hands-on experience configuring and troubleshooting Oracle GoldenGate replication components.
• Cloud & Cloud Database Services: Knowledge of Oracle Cloud Infrastructure ( OCI ) and DbaaS utilities.
• Domain Experience: Prior experience within the Banking or Financial Services (BFSI) sector.

Candidate Profile & Soft Skills

• Experience Level: Senior-level experience as an L3 Oracle/EBS DBA capable of working under high-pressure, critical production environments.
• Communication: Exceptional verbal and written communication skills suitable for reporting to management and collaborating with cross-functional teams.
• Interpersonal & Team Dynamics: Highly independent, self-motivated worker combined with strong teamwork and interpersonal capabilities.
• Problem-Solving Mindset: Analytical thinker driven by operational excellence, risk mitigation, and proactive solution design.