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Christian W.CW

Christian W.

Principal SAP Developer | FI/CO | ABAP OO | Integr

€880/day
Neumünster, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Christian

SAP Application Developer mit Fokus auf ABAP OO, FI/CO, Schnittstellen und saubere Softwarearchitektur. Ich unterstütze Unternehmen bei komplexen SAP-Projekten, technischen Analysen, Stabilisierung produktiver Systeme und nachhaltigen Business-Lösungen.

SAP-Modulkenntnisse FI/CO, SD, MM, FI/CA
Umfangreiche Kenntnisse in den SAP-Modulen FI/CO, SD, MM und FI/CA mit technischer Verantwortung für End-to-End-Prozesse von der Anforderungsanalyse bis zum Go Live.

ABAP / ABAP OO Entwicklung
Fundierte Kenntnisse in der ABAP- und ABAP OO-Entwicklung mit Fokus auf Clean Code und SOLID-Prinzipien sowie nachhaltiger Softwarearchitektur im SAP-Umfeld.

SAP HANA Entwicklung
Zertifizierte Kenntnisse in der ABAP-Entwicklung für SAP HANA, einschließlich ABAP Programming for SAP HANA und SAP HANA Introduction.

SAP-Schnittstellentechnologien
Kenntnisse in ALE, IDoc, BAdI, BAPI, BTE sowie SAP Enhancements und Services zur Konzeption und Umsetzung individueller Schnittstellenkonzepte zur Anbindung diverser Endsysteme.

SAPScript, SmartForms, AdobeForms
Kenntnisse in der Erstellung und Anpassung von SAP-Formularlösungen mit SAPScript, SmartForms und AdobeForms.

OData und CDS
Kenntnisse in OData und Core Data Services (CDS) zur Entwicklung moderner SAP-Anwendungen und Datenzugriffslösungen.

SAP BTP und Fiori Elements
Erste Erfahrungen in der Entwicklung von Anwendungen auf der SAP Business Technology Platform sowie mit Fiori Elements.

Agile Entwicklung mit Scrum und Jira
Aktive Mitarbeit in agilen Entwicklungsteams nach Scrum-Methodik mit Einsatz von Jira als Projektmanagement-Tool.

Middleware-Entwicklung
Erfahrung in der Entwicklung von Middleware-Lösungen, u.a. mit JCo und Workato zur Anbindung von SAP-Systemen an externe Anwendungen.
  • German

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • Enventa Financial Solutions GmbH
    Principal Developer
    SOFTWARE PUBLISHING
    September 2025 - Today (9 months)
    • Implementation of development orders in coordination with the respective POs
    • Requirements analysis of stakeholders, assessment of feasibility, and creation of SOWs
    • Interim Product Owner with responsibility for DevOps structure
    • Significant contribution to the development and definition of fundamental technological topics and the software architecture of SAP Finance solutions
    Software Architecture SAP Development Azure DevOps Product Owner
  • Toolport GmbH
    Senior Application Developer SAP
    RETAIL (LARGE RETAILERS)
    April 2022 - September 2025 (3 years and 5 months)
    22 Norderstedt, Germany
    Technical responsibility for the implementation of end-to-end processes in modules FI/SD/MM from requirements analysis, planning, conception, testing, to go-live. Introduction of Clean Code and SOLID principles into the architecture for development projects. Consulting internal departments regarding technical feasibility, co-design of digital process and performance optimizations. Active participation in an agile development team (Scrum, Jira). Independent implementation of development tasks. Initial experience in developing applications on SAP BTP as well as Fiori Elements. Conception & implementation of individual interface concepts for connecting various end systems (also via middleware Workato). Customization of existing software, as well as extension of SAP programs.
    Software Architecture SAP SD Atlassian JIRA Workato
  • Litreca AG
    Head of SAP Development Department
    SOFTWARE PUBLISHING
    January 2018 - March 2022 (4 years and 2 months)
    70 Stuttgart, Germany
    Professional and disciplinary leadership of SAP Development. Responsibility as lead developer for SAP AddOns. Support for the training of prospective IT specialists (application development). Support and guidance on software architecture issues for SAP AddOns.
    SAP Development Software Architecture SAP FI/CO SAP FI-CA

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Education

  • IT Specialist Application Development
    Orgatech GmbH
    2011
    Berufschule G18 HH Wilhelmsburg, IHK Abschluss Gesamtnote 2 Bi-Linguale Berufschule
  • None
    FHWedel
    2008
    Acht Verwaltungssemester Wirtschaftsinformatik

Certifications

  • SAP Certified Development Associate
    SAP
    2021
    ABAP OO ABAP-Objects

Skill set

Categories