Zafer Onbaş
Freelance SAP ABAP Fiori Developer at Self-employed
Istanbul, Türkiye Turkey
Summary
👤
Senior🎓
Top SchoolZafer Onbaş is a freelance SAP ABAP and Fiori/UI5 consultant with nine years of professional experience building enterprise UIs and back-end integrations, and a history of leading teams and product development at NTT DATA Business Solutions Turkey. He combines deep ABAP and S/4HANA expertise with modern SAPUI5, Fiori and BTP skills, bridging UX-minded front-end development and robust OData/Gateway services. Zafer has managed a 20–25 person SAP Fiori team and later transitioned to product-focused work before moving into freelance consulting, demonstrating both people leadership and hands-on delivery. His early career as a full‑stack and front‑end developer gives him a practical edge in JavaScript, HTML5 and responsive design that informs his SAP UI solutions. Based in Istanbul, he experiments with SAP HANA, ABAP OO and client-side UX patterns and brings a creative mindset—he’s also a curious guitarist and arts enthusiast.
9 years of coding experience
12 years of employment as a software developer
Computer Programming, Computer Programming at HHY Mesleki ve Teknik Anadolu LisesiBachelor of Science - BS Computer Education and Instructional Technology, Bachelor of Science - BS Computer Education and Instructional Technology at Yıldız Teknik Üniversitesi
İngilizce
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (16)
sap-fiori6
sapui56
robotics4
abap3
linter2
excel2
responsive2
javascript2
static-analysis2
spreadsheet1
xlsx1
static-code-analysis1
kubernetes1
browser1
openui51
Programming languages (3)
Github contributions (5)
zaferonbas/openui5
Mar 2017 - Oct 2022
Contributions:1 push in 5 years 8 months
web-applicationsbrowserweb-componentsjavascriptopenui5
zaferonbas/ABAP
Mar 2017 - Mar 2018
Contributions:22 commits, 20 pushes, 3 branches in 1 year
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