Hello, I'm

Onur Yilmaz

SAP Technical Consultant & Full Stack Developer

8+ years of experience in ABAP development, S4/HANA implementations, and expanding into iOS mobile applications and modern web development.

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Onur Yilmaz
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About Me

I am a seasoned SAP Technical Consultant with 8 years of experience in development, integration, and performance optimization. My expertise spans numerous full-cycle RISE and S4/HANA projects, as well as support for R3 projects using Agile and ASAP methodologies.

Throughout my career, I have worked extensively with PP, SD, MM, QM, PM, EWM, and FI modules in development, integration, and unit testing. I have led teams of up to 15 ABAP developers and delivered over 500 developments for major enterprise clients.

Currently, I am expanding my skill set into iOS mobile application development and modern web development, bringing my enterprise software expertise to new platforms and technologies.

Personal Info

  • Location: Turkey
  • Languages: Turkish (Native), English (Fluent)
  • Education: Istanbul Technical University
  • Degree: Electronics and Communications Engineering
8+ Years Experience
15+ Projects Completed
500+ Developments
15 Max Team Size Led

Skills & Expertise

SAP & ABAP Development

  • ABAP on S4/HANA & RISE
  • RESTful Application Programming
  • CDS Views & AMDP
  • OData Services
  • BRF+ & Workflow
  • Adobe Forms & Smartforms
  • BADI & Enhancements
  • RFC & Web Services

Integration & Services

  • RESTful Services
  • SOAP Services
  • SPROXY Integrations
  • 3rd Party Integrations
  • IDOC Processing
  • BAPI Development
  • API Development
  • Middleware Solutions

iOS Development

  • Swift & SwiftUI
  • UIKit
  • iOS App Architecture
  • Core Data
  • RESTful API Integration
  • App Store Deployment

Web Development

  • HTML5 & CSS3
  • JavaScript
  • Responsive Design
  • SAP Fiori & UI5
  • Web Dynpro for ABAP
  • Modern Frameworks

SAP Modules

  • PP (Production Planning)
  • SD (Sales & Distribution)
  • MM (Materials Management)
  • FI (Finance)
  • QM (Quality Management)
  • PM (Plant Maintenance)
  • EWM (Extended Warehouse)
  • HR & TRM

Leadership & Methods

  • Team Leadership
  • Agile Methodology
  • ASAP Methodology
  • SAP Clean Core
  • Technical Documentation
  • Performance Optimization

Professional Experience

Azercell

Project Development Group Manager

Technical Skills: RESTful Application Programming, SOAP Services, Adobe Forms, BRF+ Email Templates, Flexible Workflow, OOP, CDS, AMDP

  • Leading a team of 15 ABAP developers
  • Responsible for 100 developments with HR, SD, MM, FI, PM, TRM modules
  • All developments passed ATC checks, written in S4/HANA standards
  • Working with SAP, following SAP Clean Core standards

GBM

Project Development Group Manager

Technical Skills: RESTful Application Programming, BRF+ Output Management, SOAP Services, Flexible Workflow, OOP, CDS, AMDP

  • Leading a team of 8 ABAP developers
  • Responsible for S4/HANA to RISE conversion process including SUM, SPAU-SPDD, ATC Checks
  • Bug fix and correction in RISE systems

Nuh Cimento

Project Development Team Lead Building Materials | Greenfield S4/HANA

Technical Skills: RESTful Services, SOAP Services, Workflow, OOP, User-exit, BADI, CDS, AMDP

  • Leading a team of 10 ABAP developers
  • Responsible for 500 developments with PP, SD, MM, FI, PM, TRM and EWM modules
  • All developments passed ATC checks, written in S4/HANA standards

Teknosa

SAP Technical Consultant Retail | Greenfield S4/HANA

Technical Skills: RESTful Services, SPROXY Services, Workflow

  • SPROXY service generations and implementations
  • Workflow event triggering and customizing
  • User-exit, BADI implementations
  • OOP based dialog programming

PPG Industries

SAP Technical Consultant Chemicals & Paint | Brownfield S4/HANA

Technical Skills: RESTful Services, Fiori Applications

  • RESTful Services development
  • BRF+ Applications
  • Fiori Form Templates & Email Templates
  • ALV Reports

Celebi Aviation Holding

SAP Technical Consultant Cargo Transportation & Logistics | Support

Technical Skills: ABAP on RISE, Integrations

  • ALV, GUI Dialog Programming
  • Adobe Forms, RFC, RESTful Services

Koctas

SAP Technical Team Lead Retail | Mirakl Integration

Technical Skills: ABAP on R3, Integrations

  • SPROXY Integrations
  • RFC, Adobe Form, Grid ALV

Taha Textile

SAP Technical Consultant Textile | S4/HANA Brownfield

Technical Skills: ABAP on S4/HANA

  • All PP Developments and Custom Processes
  • Reports, GUI Dialog Programming, Adobe Forms, Smartforms
  • BADI & Exits & Enhancements, RFC, OO, BAPI, Web Services, REST Services, CDS

Menderes Textile

SAP Technical Consultant Textile | S4/HANA Greenfield

Technical Skills: ABAP on S4/HANA

  • All PP Developments and Custom Processes, QM, MM
  • Reports, GUI Dialog Programming, Adobe Forms, Smartforms
  • BADI & Exits & Enhancements, RFC, OO, BAPI, Batch Input, Web Services, CDS, OData

SASA

SAP Technical Consultant Polyester | S4/HANA Brownfield

Technical Skills: ABAP on S4/HANA

  • All PP Developments and Custom Processes, PPDS, MM, SD, FI, QM
  • Reports, GUI Dialog Programming, Adobe Forms, Smartforms, SAPScripts
  • BADI & Exits & Enhancements, RFC, OO, BAPI, Batch Input, IDOC, Web Dynpro for ABAP, CDS

Bony Socks

SAP Technical Consultant Textile | S4/HANA Greenfield

Technical Skills: ABAP on S4/HANA

  • PP, PPDS, MM, SD, FI, QM, PM, EWM, HR
  • Reports, GUI Dialog Programming, Adobe Forms, Smartforms, SAPScripts
  • BADI & Exits & Enhancements, RFC, OO, BAPI, Batch Input, CDS

Additional Projects

SAP Technical Consultant

Clients: Gratis (Retail), Kordsa (Raw Materials), Polymetcore Trading SA (Mining & Metal), Anex Tour (Tourism)

  • Support ticket handling and issue resolution
  • Grid ALV, GUI Dialog Programming, Smartforms, RFC
  • Adobe Forms, BADI & Exits & Enhancements, BAPI, OO

Side Projects

Personal projects exploring iOS development and modern web technologies

iOS Applications

Developing mobile applications using Swift and SwiftUI, applying enterprise software principles to mobile development.

Swift SwiftUI iOS

Web Development

Building modern, responsive websites and web applications using current technologies and best practices.

HTML5 CSS3 JavaScript

SAP Integration Tools

Creating tools and utilities that bridge SAP systems with modern web and mobile platforms.

ABAP REST API OData

Get In Touch

Interested in working together? Let's connect!

Email

onuryz.itu@gmail.com

Phone

+90 535 768 07 23

Location

Turkey

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