11/10/2026 updated
100 % available
SAP ABAP Developer | ECC & S/4HANA | BAPI/RFC Interfaces & Troubleshooting
Incheon, South Korea
Worldwide
About me
SAP ABAP developer with over 10 years of experience in custom development, interfaces, and application support. Experienced in remote delivery since 2022. Seeking remote, part-time projects focused on ABAP troubleshooting, reports, and enhancements.
SAP ERPSAP ABAPSAP HANASAP LogisticsSAP R/3SAP SDSAP DevelopmentSAP AMSSAP BAPI
SAP ABAP developer with over 10 years of experience in SAP implementation, enhancement, integration, and application support across ECC and S/4HANA environments.
CORE SKILLS
• ABAP custom program development, maintenance, debugging, and troubleshooting
• ALV reports and business reporting programs
• RFC/BAPI interfaces between SAP and external systems
• Integration using IDoc, EDI, SAP JCo, and .NET Connector
• Custom development supporting SD, MM, WM/EWM, and FI processes
• Purchasing, inventory movements, sales orders, deliveries, warehouse operations, and accounting interfaces
PROJECT EXPERIENCE
My experience includes ERP implementation, enhancement, and integration projects for POSCO International, Hyundai AutoEver, DKSH Korea, and other clients. I have developed solutions for import/export operations, logistics, financial postings, warehouse management, and SAP-to-Web interfaces.
REMOTE SAP ABAP SUPPORT | June 2022 – Present
• Develop and maintain transfer order (TO) programs.
• Develop accounting-related programs.
• Develop custom warehouse management (CBO) programs.
• Meet remotely with client stakeholders to clarify requirements and coordinate program changes.
• Deliver ongoing ABAP development and application support remotely.
PROJECT AVAILABILITY AND COMMUNICATION
Based in South Korea, I am seeking remote, part-time or short-term assignments with clearly defined deliverables, including bug fixes, custom reports, interfaces, and enhancements.
I prefer written communication for technical requirements and progress updates. My spoken English is limited, so scheduled meetings with an agenda shared in advance work best for me.
PORTFOLIO SAMPLE
Attachment: SAP_ABAP_ALV_Test_Environment.png
A custom SAP ABAP ALV application for maintaining vendor purchasing conditions, including validity periods, minimum order quantities (MOQ), container quantities, freight costs, and lead times. Includes a change-history view for reviewing previous updates.
The screenshot was captured in a development environment using test data. No production or confidential client data is included.
Experience
Professional experience10+ years
Freelancer since2022
Languages
EnglishGoodKoreanNative speaker