Haydar Velioglu
Senior SAP Migration Expert
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 monthsSAP 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 monthsTeam 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 monthsSenior 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 monthsSenior 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.
Languages
Turkish
Native
English
Elementary
Education
Oct 2015 - Jun 2017
Bahçeşehir University
MBA · Ankara, Turkey
Oct 2009 - Jun 2014
Çankaya University
Computer Science · Ankara, Turkey
Oct 1993 - Jun 1999
Bilkent University
Computer Engineering · Ankara, Turkey
Certifications & licenses
SAP R/3 Basis Certificated Consultant
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