Haydar Velioglu - Senior SAP Migration Expert

Ankara, Turkey

Experience

Nov 2024 - Feb 2025

4 months

Germany

Senior SAP Migration Expert

Cewe Group

SAP Migration Expert with both direct approach from ERP and staging tables
LTMOM, Fiori Migration App
Debugging, enhancing the standard migration objects
Custom migration objects, custom mappings
Selection BADI and SKIP rule implementations
Development for big scale data loads
Consistency checks of the objects, reporting of results & errors
Data migration from ECC SAP to S4HANA

Sep 2022 - May 2023

9 months

Germany

Senior SAP Developer

50Hertz Transmission GmbH

SAP development consultant for oneSAP project of 50Hertz Transmission GmbH (Germany) and Elia Group (Belgium)
SAP ABAP
SAP S/4 HANA
SAP Enterprise Asset Management (EAM)
Enterprise Asset Management
SAP PM
SAP logistics
SAP Document Management System (DMS)
SAP Materials Management
SAP bundling

May 2022 - Sep 2022

5 months

Turkey

Senior SAP Developer and Migration Consultant

Rönesans Holding

SAP development for SAP SD, PM, MM
Migration consultant for PM data migration with DMC/LSMW
S4HANA

Jul 2018 - May 2022

3 years 11 months

Turkey

Technical Architect, Lead Developer, Software Development Team Lead

FIT GLOBAL

Development of the following FIT Products (ABAP Add-On on SAP):
Fit-Rent on Cloud (on SAP Store) running on SAP BTP Platform
Fit-Rent (SAP Certified both on S4HANA and on SAP R/3)
Fit-Lease (SAP Certified on S4HANA)
Fit-EM (SAP Certified on S4HANA)
Fit-Service
Fit-Parts
Fit-Prime
Fit-Interface
Fit-CDBS
Customer project implementations:
Nippon Caterpillar, Japan
Wacker Neuson, Germany
Upgrading products from SAP R/3 to SAP S4HANA
Upgrading products from SAP S4HANA 1809 to 1909 and 2020
Certification of FIT Products
Configuration & version management of FIT Products
Packaging of FIT Products
Development of DevSync, Req-Check, Repo-Test on SAP for continuous integration of products
Managing toolsets (JIRA, Slack, GIT, AbapGIT)

Sep 2017 - Jul 2018

11 months

Turkey

SAP Senior ABAP Developer & Software Group Manager

MITAS A.S.

Full Cycle S/4 HANA implementation for MITAS Civata
Data migration: All data for a new SAP system (Customer, Supplier, Account, Material, Stock, HR Person) with LTMC and LSMW
SAP joint venture project on S4HANA for all group companies
SAP ERP business on HANA system support/maintenance

Nov 2013 - Jul 2017

3 years 9 months

SAP ERP Group Manager

HAVELSAN A.S.

Responsible for seven running ERP projects delivery plan, task management, tracks progress, monitoring all work in accordance with schedules
Coordinated between technical managers and project manager
Supported business development activities (ERP, military logistics, e-government)
People management experience, recruiting, evaluation, mentoring
Leadership experience
Performance management
Managed and coordinated project teams and organizations of up to 70+ people and million dollars of budget
RM planning for ERP projects

Oct 2012 - Jul 2017

4 years 10 months

Team Leader/Technical Manager

HAVELSAN A.S.

Technical team leader for ABAP development team
Collaborated closely with clients to understand their needs
Managing the day-to-day operational aspects of the project
Managing technical teams
Technical support for ABAP, PM, PP, HR, and TEM consultants
Establishing the overall success criteria for a project, including time, cost, technical and performance parameters
Monitoring all work in accordance with schedules
Producing & maintaining technical documentation and internal training

Oct 2004 - Jul 2017

12 years 10 months

Senior ABAP Developer

HAVELSAN A.S.

Experienced in SAP EAM Enterprise Asset Management, MM, SD, PP, PM, BW, HR, TEM
ABAP Report programming
Dialog programming
Module Pool, Function Group, Data Dictionary
ABAP Objects, Object-Oriented Programming
ALV grid, SALV, SAP Tree Models, HR Object Manager (OM) and custom controls
HR programming, HR reporting, Payroll Clusters, HR Logical Database PNP, PCH
ALE-EDI/IDOC technology & development
Workflow development and business object design
RFC, BAPI functions
Modification & enhancements (User-exits, customer exits, BADIs and repairs)
Data transfers (LSMW, Direct Input, Batch Input, IDOC)
Web service development
SmartForms, Adobe Forms
Batch input
SAP authorization concept, roles
Shared object memory, IMPORT, EXPORT
OSS notes
Performance tuning and code review

Mar 2003 - Oct 2004

1 year 8 months

Senior SAP Basis Consultant

HAVELSAN A.S.

SAP Basis consultant for Military and Government Projects

Jul 1999 - Oct 2001

2 years 4 months

Netherlands

SAP Basis Consultant

PHOBOS B.V.

Worked as SAP Basis Consultant at MEGAPLAST ERP Project

Germany

Senior SAP Lead Developer and Technical Manager

Berlin Tires GmbH

End-to-end SAP implementation project
SAP technical lead for the whole technical team
Developer: SD, MM, WM, FI
Data Migration: All data for a new SAP system (Customer, Supplier, Account, Material, Stock, HR Person Data) with Migrate Your Data
S4HANA 2021

Germany

Senior SAP Developer

DAW

SAP development for SAP SD
S4HANA

Switzerland

Senior SAP Developer and Integration Consultant

Interdiscount

SAP developer
IDOC configuration and development
S4HANA

Germany

Senior SAP Developer

MAPA GmbH

SAP development for WM/MM
Developed specific algorithms for packaging, picking, shipping processes

United States

Senior SAP Developer

PPG Industries Inc.

SAP development consultant for PPG Connect/BAU project
SAP ABAP
SAP S/4 HANA
SAP OTC
SAP ERP
SAP PM
SAP logistics

Germany

Senior SAP Developer and Data Migration Consultant

RWS

SAP developer and migration consultant
Migrate Your Cockpit and LTMOM framework
SAP S4HANA

Switzerland

Senior SAP Developer and Integration Consultant

SV Informatik

SAP developer
IDOC configuration and development for finance, sales, material management
S4HANA

Germany

Senior SAP Developer

Socura

SAP developer
Custom code management and code migration from ECC to S4HANA
ATC checks and S4HANA readiness checks
SAP S4HANA (migration from ECC)

Summary

25 years of experience as Senior SAP ABAP Developer with a proven problem-solving skills and experience on development with ERP / S4 HANA and modules especially on SAP EAM Enterprise Asset Management, PM, MM, SD, PP, HR and broad range of technologies (S4HANA, ERP, Integrations, Web Services, RESTful Services, SOAP, ODATA, MRP, ITS, NetWeaver, Solution Manager, Basis Background, Software Logistics, Custom Code Management, Versioning, JIRA, AbapGIT, Git, LTMC, LSMW, LTMOM, Migrate Your Data).

During these years I have implemented different innovative solutions, mentored and coached technical teams, also I have improved processes to increase transparency, performance, and customer satisfaction.

I also developed excellent communication, teamwork and leadership skills while leading the teams in projects.

I am an experienced leader, highly committed, result-oriented, innovative, out-of-box thinker, always looking for better ways, initiative-taking, customer-focused, admirably adapted in international environments, and strategic thinker with high teamwork spirit.