About Ricardo
I help retail and supply chain companies solve complex data and inventory challenges using Oracle and PL/SQL.
With 11+ years of experience in Oracle database development, I specialize in building and optimizing backend systems that process large volumes of transactional data - from automated replenishment engines to supplier route optimization algorithms.
Currently working as a Senior PL/SQL Developer at Profimetrics, where I develop NEO, a stock optimization platform used by large-scale retailers. My work covers the full cycle: business logic in PL/SQL, parallel processing pipelines, performance tuning, and technical documentation.
Previously at Glintt Healthcare Solutions, I built Oracle-based billing systems integrated with national health services in Portugal.
What I can help you with:
Complex PL/SQL development and optimization
Oracle database performance tuning
ETL pipelines and data migration
Stock, replenishment, and supply chain logic
Legacy system debugging and refactoring
I work remotely and am available for project-based engagements across Europe.
Portuguese
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- Profimetrics Software SolutionsSenior Oracle PL/SQL DeveloperRETAIL (LARGE RETAILERS)April 2019 - Today (7 years and 3 months)Porto, PortugalDevelopment and maintenance of NEO, a stock optimization and replenishment platform for large-scale retail clients.Designed and implemented PL/SQL algorithms for automated replenishment, supplier route optimization (TLO), and stock capping mechanismsBuilt and debugged order simulation engine handling multiple stock categories and consolidation workflowsDeveloped parallel processing jobs in Oracle, resolving complex concurrency and precision issues at scaleCollaborated on architecture decisions for distribution center modeling across Brazilian retail operation.Produced internal technical documentation and release notes for the engineering teamStack: Oracle Database, PL/SQL, SQL, Shell Scripting, parallel processing, ETL pipelines
- GlinttOracle PL/SQL DeveloperMEDICALJanuary 2015 - March 2019 (4 years and 2 months)Porto, PortugalDevelopment of Oracle-based billing and financial systems for hospital networks across Portugal.Implemented and maintained PL/SQL procedures and packages for healthcare billing workflows, invoice generation, and financial reconciliationIntegrated systems with external health insurance entities and government health services (ADSE, SNS)Optimized query performance and database processes to handle high transaction volumes in production environmentsParticipated in requirements analysis and technical documentation for regulatory complianceStack: Oracle Database, PL/SQL, SQL, ETL, financial systems integration
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Education
- Bachelor's in Computer ScienceUniversidade Aberta2026Computer Science degree with focus on software engineering and programming. Currently in progress.