Principal Oracle Platform Engineer

Principal Oracle Platform Engineer

Principal Platform Engineer (Database)
Location: Dublin, Ireland (Hybrid)
Level: Principal / Lead Focus: 70% Architecture & Design | 30% Engineering & Implementation

• Architectural Strategy: Lead the design and roadmapping of our database platforms, focusing on Oracle MAA (Maximum Availability Architecture) to achieve zero-data-loss and continuous availability.


• Exadata Mastery: Serve as the Subject Matter Expert for Oracle Exadata (On-premises), optimising the stack from the storage cell level up to the database instance.


• High Availability & DR: Design and implement robust Data Guard and FSFO (Fast-Start Failover) configurations to meet stringent RTO/RPO requirements.


• Modern Integration: Architect complex GoldenGate replication topologies, including the design and deployment of GoldenGate Microservices for real-time data integration.


• Consolidation & Multi-tenancy: Drive the strategy for Oracle Multitenant architecture, acting as the lead expert on PDB/CDB (Pluggable Database) design and isolation.


• Performance Engineering: Act as the final escalation point for "deep-dive" performance tuning, utilising SQL optimisation, ASH/AWR analysis, and Exadata-specific features (Smart Scans, Storage Indexing).


• Hybrid Cloud Evolution: Contribute to the design of polyglot persistence layers, integrating Oracle with Open Source and Cloud-native technologies.

• Oracle Specialist: Extensive experience with Oracle 19c/23c, specifically within Exadata environments.


• Replication Expert: Proven track record designing GoldenGate (Classic and Microservices) for complex, high-volume data movement.


• Infrastructure-as-Code: Experience designing automated deployment patterns for database infrastructure.


• Design Pattern Fluency: Deep understanding of application design patterns and how they interact with the database layer.


• Performance Guru: Expert-level knowledge of Oracle internals and Exadata-specific tuning.

• Hands-on experience or architectural knowledge of PostgreSQL or Redis.


• Public Cloud experience with AWS (RDS/Aurora) or Azure (SQL Managed Instance/OCI Interconnect).


• Experience in the Dublin/EMEA tech ecosystem or financial services sector.

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

• Abide by Mastercard’s security policies and practices;


• Ensure the confidentiality and integrity of the information being accessed;


• Report any suspected information security violation or breach, and


• Complete all periodic mandatory security trainings in accordance with Mastercard’s guidelines.