Marc Argüelles Cabello

Development and maintenance of enterprise applications using Java, Spring Boot, and Angular. I implement new functionalities, resolve production incidents, and develop REST APIs and integrations with SQL databases. I work on the continuous improvement of applications, prioritizing code quality, performance, and maintainability.

• Solely responsible for the maintenance and evolution of legacy Java applications in production that support critical manufacturing and logistics processes, used daily by over 200 internal users.

• Optimization of SQL queries on SQL Server / Azure SQL: up to 30% reduction in response times through query rewriting, index review, and elimination of N+1 in the DAO layer.

• Integration of backend systems with JD Edwards (ERP), ensuring data consistency between the ERP and proprietary applications.

• Autonomous diagnosis and resolution of production incidents (data integrity, truncations, integration failures), with root cause analysis and definitive correction.

Daily customer service in English to international passengers in a high-volume environment; incident resolution under pressure. Combined with my studies in DAM and, since then, with my career as a developer.