SAP ABAP Developer

ClariLab GmbH & Co. KG is a German consulting firm specializing in SAP implementation, integration, and cloud migration for financial institutions.

• Supported the migration from SAP ECC to S/4HANA, focusing on billing, finance, and integration components.

• Designed and implemented OData and SOAP web services to ensure seamless communication with external financial and CRM systems.

• Debugged and resolved cross-component issues affecting FI-CA and Convergent Invoicing processes.

• Collaborated with business analysts to translate financial requirements into optimized ABAP logic.

• Improved performance and code quality by strictly following SAP Clean ABAP and ATC standards.

• Ensured compliance with SAP development standards by participating in peer reviews and quality gates throughout the migration cycle.

SAP SE is a leading global software company that develops enterprise resource planning (ERP) systems and cloud business solutions.

• Delivered country-specific localizations for Portugal, Argentina, Brazil, and Italy within the SAF-T (Standard Audit File for Tax) framework.

• Analyzed and implemented enhancements for Official Document Number generation within SAP FI and S/4HANA environments.

• Collaborated with product owners to design, develop, and publish SAP Notes that address customer-specific compliance requirements.

• Implemented optimized ABAP logic and unit tests to enhance the reliability of tax and reporting functionalities.

• Supported regression testing and validation for quarterly release cycles.

Deutsche Börse Group is a leading German exchange organization providing financial infrastructure and IT services for global markets.

• Acted as primary ABAP developer for the Convergent Invoicing system, leading full lifecycle development.

• Promoted to team lead, managing four ABAP developers and overseeing task allocation and delivery tracking.

• Translated complex business and compliance requirements into detailed technical specifications.

• Integrated SAP Fiori and SAPUI5 applications for user-friendly billing dashboards.

• Optimized database interactions using SAP HANA-specific features, improving execution time by 25%.

• Ensured audit readiness and data traceability for all implemented financial solutions.

AirPlus International is a global provider of corporate payment and travel management solutions, part of the Lufthansa Group.

• Provided technical expertise in FI-CA and Convergent Invoicing, supporting end-to-end financial processes.

• Developed and maintained billing and invoicing enhancements in SAP ABAP and OO-ABAP.

• Supported continuous integration and deployment of SAP transport requests across multiple landscapes.

• Designed custom reports and interfaces for monitoring invoice flows, enhancing accuracy and reconciliation speed.

• Automated daily batch processes using background jobs, reducing manual workload by 30%.

• Collaborated with finance and IT stakeholders to ensure smooth delivery of development tasks.