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Turning Technology Into Value

For 10+ years I've built ABAP, S/4HANA, Fiori and integration solutions on enterprise-scale SAP projects — directly, no middlemen.

SAP ABAP development work

Our Story

I started my SAP journey with deep ABAP roots and gradually expanded across the full SAP technology stack: Fiori/UI5, system integrations, process automation and S/4HANA migrations. My goal has stayed the same — deliver the solution that actually fits the business where standard packages fall short.

For 10+ years I've developed critical processes on enterprise-scale SAP systems across retail, manufacturing, energy, food & agriculture, cement and mining. I don't just write code — I analyse the real problem and build sustainable solutions.

My mission is simple: deliver SAP solutions that actually work for your business — not just technically correct, but aligned with your goals.

Our Approach

We don't just write code — we engineer solutions.

1. Analyze

Deep dive into your business processes to understand requirements and identify the root causes of inefficiencies.

2. Design

Architect a solution that is scalable, maintainable and aligned with SAP best practices and Clean Code principles.

3. Develop

Build with precision using modern ABAP, Fiori and integration technologies — fully documented and tested.

4. Test

Rigorous unit and integration testing to ensure quality, performance and reliability before go-live.

5. Deploy

Smooth go-live with proper transport management, cutover planning and stakeholder communication.

6. Support

Post-go-live support and continuous improvement — because a project doesn't end at launch.

Industries We Serve

Deep domain knowledge across multiple sectors.

Retail

Inventory, POS integration, loyalty programs and omnichannel operations.

Manufacturing

Production planning, quality management and shop floor automation.

Energy

Meter management, billing integration and regulatory reporting.

Fashion & Apparel

Size/color variant management, season planning and retail replenishment.

Real Estate

Lease management, contract workflows and property reporting portals.

Construction

Project cost accounting, procurement automation and subcontractor management.

Mining

Plant maintenance, material traceability and environmental compliance reporting.

FMCG

Demand planning, trade promotions and distributor management.

The Expert Behind the Brand

Behind the Önder Yazılım brand is an experienced SAP consultant who personally takes on your projects.

Mustafa Önder

Mustafa Önder

SAP Technical Consultant · ABAP / S/4HANA · Fiori · Integration

10+ Years Experience · BSc Computer Engineering, Istanbul University

For 10+ years I've delivered SAP development and end-to-end implementation projects across retail, manufacturing, energy, food and textile sectors. I specialise in ABAP/OO, SAPUI5/Fiori, Web Dynpro, OData and S/4HANA migrations, and I integrate SAP seamlessly with e-commerce platforms, government institutions and custom systems.

For larger projects, I build a project-based team from my network of trusted freelance experts.

Areas of Expertise

  • ABAP / ABAP OO
  • CDS Views / AMDP
  • SAPUI5 / Fiori
  • Web Dynpro ABAP
  • OData (V2/V4)
  • S/4HANA Migration
  • RFC / SOAP / REST
  • IDOC / ALE
  • Workflow / BRF+
  • Smartforms / Adobe Forms

Our Values

Quality First

We never compromise on code quality. Clean Code principles and thorough documentation are non-negotiable.

Partnership

I'm personally involved in every project and treat your challenges as my own — with open, honest communication.

Innovation

We stay current with SAP's evolving ecosystem to bring you the most effective modern solutions.

Contact Us

Get in touch for your projects.