SAP Integration & Business Applications
2012 – Present
Custom SAP applications, reports, and integrations connecting SAP systems with internal and external platforms — across multiple engagements over the years, not a single project.
SERKAN ASAN
Senior SAP & Software Engineer
I build and modernize business-critical software across SAP, backend systems, integrations and APIs.
14+ yearsSAP · S/4HANA · ABAPDE · EN · TR
Selected Work
Real-time Financial Analysis Platform
2021 – 2024
Built and operated a bot- and API-driven platform for automated financial-market analysis and reporting using real-time market data.
SAP-backed Mobile Applications
2012 – 2017
Android applications integrated with SAP backends via the Sybase Mobile Platform.
Core Expertise
SAP
ABAP / ABAP OO · SAP S/4HANA · SAP ECC · SAP Fiori · SAP Gateway · BAdI · User-Exits · IDoc · SAP MM/SD/FI
Backend
Python · Django · Node.js · Flask · FastAPI
Integration & APIs
REST APIs · OData · SOAP · RFC · OpenAPI / Swagger
Data
SAP HANA · PostgreSQL · MySQL
Infrastructure
Ubuntu · Nginx · Docker · CI/CD
Other
Java · C# · Android · TypeScript
Work Experience
Senior Software Developer
Freelance · Gütersloh, Germany- Freelance work as an SAP developer, focused on developing custom applications, reports, and interfaces.
- Responsible for design, implementation, and support in direct collaboration with end clients.
About
I'm a software developer and SAP specialist with extensive experience designing, building, and optimizing enterprise applications. Since 2020 I've worked as a freelance developer, delivering custom software solutions for clients in finance, retail, and industry.
More about me