Oracle Developer/Middleware Engineer

Responsibilities

• Design and evolve Oracle architectures - Shape PL/SQL, APEX, Forms, ORDS, WebLogic and OSB components, ensuring robust integration and scalable designs;
• Perform advanced L3 troubleshooting - Resolve complex application, middleware and SQL issues through deep‑dive analysis and cross‑team collaboration;
• Optimize performance - Improve response times and reliability through SQL tuning, PL/SQL optimization, indexing strategies and workload analysis;
• Ensure HA/DR readiness - Align applications and middleware with Data Guard, RAC, failover and recovery requirements;
• Lead major changes - Drive upgrades, migrations, deployments and modernization initiatives with safe rollback and controlled execution;
• Support on‑call operations - Intervene in critical incidents to restore service quickly in a 24/7 production environment;
• Automate and industrialize - Build scripts and tools to streamline deployments, configuration, testing and recurring operational tasks;
• Apply secure development practices - Enforce strong authentication, authorization, encryption and auditing across all Oracle components;
• Document and share expertise - Maintain clear technical documentation and contribute to team knowledge and mentoring.
• 5-10+ years working with PL/SQL, SQL, APEX, Forms, ORDS, WebLogic and OSB in business‑critical environments;
• Strong understanding of Oracle middleware runtime behavior, deployments, APIs and integration flows;
• Multi‑customer experience (Background in MSP, outsourcing or shared‑service environments is highly valued);
• Familiarity with schemas, grants, transactions, locking, Data Guard/RAC constraints and backup/recovery implications;
• Performance tuning capability (s killed in execution plan analysis, indexing strategies, statistics, bind variables and diagnosing SQL/PLSQL performance issues);
• Ability to interpret AWR, ASH, ADDM, SQL Monitor and correlate application/middleware behavior with DB, WebLogic, ORDS and OSB metrics;
• Experience with controlled deployments, rollback scripts, data migrations and environment promotion;
• Linux and runtime troubleshooting (c omfortable with AIX/RHEL environments, shell scripting, log analysis and runtime investigation);
• Knowledge of WebLogic domains, managed servers, JDBC data sources, OSB flows and ORDS runtime behavior;
• Experience with Git, CI/CD tools, SQL Developer, SQLcl, APEX export/import, Forms and ORDS deployment automation;
• Analytical, calm under pressure and collaborative in multi‑team environments as well as strong written and verbal communication with technical and non‑technical stakeholders;
• English required; French or Dutch are a plus.

Additional Information

We are looking for an Oracle Developer & Middleware Engineer to support mission‑critical Oracle applications in a 24/7 multi‑customer environment. You will work with PL/SQL , Oracle APEX , Oracle Forms , ORDS , WebLogic and OSB to ensure reliable integrations, stable performance and smooth deployments, collaborating closely with the Oracle DBA team in a highly industrialized production setting.

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