Hayati B. - SAP Software Developer + SAP Software Architect

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Dortmund, Germany

Experience

Oct 2024 - Present

11 months

Cologne, Germany

SAP Software Developer + SAP Software Architect

Ströer

ABAP software development
Clean code, unit tests, modular software development
Software architecture
Co-built SAP Integration Suite
Implementation of POCs
Interface design
Building generic interface frameworks
Creating a REST-SCIM interface (RFC 7643, RFC 7644) in the SAP ERP backend with ABAP
Domain-driven design
Enterprise architecture, capability management
Interface recordings in Luy
Small Node.js application on CF

Oct 2013 - Sep 2024

11 years

Dortmund, Germany

Integration Developer, SAP Developer

Melogy UG

Company reference incl.: Rewe Systems, T-Systems, Baynerwerke, DMG Mori, Esprit, DKV-Mobility, SMF GmbH, Vaillant, etc.

ABAP software development
Clean code, unit tests, modular software development
Interface development with SAP PI/PO
Independent setup of the SAP Integration Suite on SAP BTP including master data and transaction data distribution
Interface development with SAP Integration Suite and Event Mesh
Source and target systems: Kafka, Salesforce, SAP services on CF/BTP, SAP ECC and SAP S/4 HANA on-premise solutions, HANA Cloud
Interface development with REST, proxy
Interface development with IDOCs, OData, SOAP
Master data distribution via SMD
WS-RM
EOIO, EO, idempotency
Ensuring transactional security
Experience with sequencing using queuing frameworks
bgRFC
Software architecture
Hexagonal, onion
Domain-driven design
SAP Business Workflow development

Aug 2011 - Sep 2013

2 years 2 months

Münster, Germany

SAP Consultant energy sector / Application Developer

Cronos

Company reference incl.: Stadtwerke Hagen - Enervie, NEW Mönchengladbach, EON, Gelsenwasser, etc.

ABAP software development
Development with SAP Business Workflow

Jan 1997 - Dec 2011

15 years

IT administrator, IT retail and wholesale - purchasing + sales, software development, consulting, SAP ABAP development, Java

incl.: Serhend Computer Systeme, Delphi Computer Systeme, ITC GmbH, etc.

Jan 1995 - Dec 1997

3 years

Dortmund, Germany

IT administrator and developer

University of Dortmund

At the Civil Engineering department at the University of Dortmund

Summary

Extensive experience in SAP software development / SAP product development (plugin systems / SPIs) in ABAP OO (>18 years) (SAP Associate and Professional certified)
ABAP unit tests
Clean code
bgRFC (queuing)
Transactional security
Event-driven development
Interface development
Extensive experience in SAP Business Workflow development (+ BOR objects) (>15 years)
SAP BTP (CF) overall experience (>5 years) – mainly SAP Integration Suite (>=4 years), but also HANA Cloud (3 months), Fiori (~~12 months) and CAP (~~6 months) (CDS views and Node.js)
Experience with SAP Integration Suite (>=4 years)
Event Mesh, APIs, API Management, clean core approach
Professional SAP PI (>3 years) (SAP certified)
Relatively broad knowledge and experience in IT and software development (>30 years)
Domain-driven design, hexagonal architecture, software architecture, integration architecture
Basic module knowledge and experience in SAP SD, MM, IS-U, RETAIL, SAP BW (SAP certified)
Event-driven development
Interface development experience with IDOCs, EDIFACT, SOAP, XI SOAP, REST, OData, OpenAPI, AsyncAPI, RFCs, events…
Basic software development experience in Java, Groovy, Ruby
Data contracts
Experienced in support / AMS
More than 20 years of development experience in consulting firms and their clients
Multiple SAP certifications (developer/consultant/professional)
Experienced in SAP S/4 HANA (3-4 years)
Basic experience with SAP CDS views
Basic experience with UI5 / SAP Fiori (approx. 1 year)
Basic experience with SAP CAP (Node.js) (approx. half a year)
Basic experience with HANA Cloud