József Szikszai
Interim ABAP-OO Developer
Experience
Interim ABAP-OO Developer
Interdiscount
- Interim ABAP-OO developer in S/4HANA migration
- Automation of trade calculation (IS-Retail)
- RFC interface between POS system and S/4 (SD)
- RFC interface between S/4 and R/3 for price comparison (SD)
- Automatic creation and settlement of pricing conditions (SD)
- Automation of setting the regular supplier in the info record (MM/SD)
Interim ABAP-OO Developer
Fleurop AG
- Interim ABAP-OO developer in ongoing projects
- New features and bug fixes in SD, MM, FI, CO and custom modules
- Digitizing customer service (automatic emails to customers and delivery partners)
- Adobe/SmartForms/SAPScript form development (invoices, orders, billing)
- Interface development (HTTPS calls, web services and RFC function modules)
- Preparation for S/4HANA migration (Business Partners, custom code conversion)
Interim ABAP-OO Developer
Heraeus Holding
- Interim ABAP-OO developer in ongoing projects
- Development in SD, MM, FI, CO and custom modules
- Rebuilding and refactoring processes using ABAP-OO
Interim ABAP-OO Developer
Daimler AG
- S/4HANA implementation project
- Various developments in FI (Management Information Framework)
- Data modeling using CDS Views, mapping with AIF
- IDoc interfaces between R/3 and S/4 for FI postings (BKPF/BSEG ↔ ACDOCA)
- Project terminated due to COVID-19
Interim ABAP-OO Developer
HeidelbergCement AG
- SAP implementation (USA) and support (Europe, Asia)
- Various developments in SD, MM, LE, FI, CO
- Reports (ALV-OO in SD, MM and FI)
- File-based interfaces between SAP and non-SAP (FI, CO)
- Posting programs (FI, CO, COPA)
- User Exit developments (SD orders, pricing, MM email on purchase)
- SAPScript, Smart Forms, Adobe Forms development (SD, LE, FI)
Interim ABAP-OO Developer
Tom Tailor Group
- SAP implementation project (SD, MM, LE, IS-Retail, FMS, FI, CO)
- Various developments in SD, MM, LE, IS-Retail, and FMS
- User exit developments (copy routine, invoice creation)
- IDoc development (transport, LE)
- Message types for deliveries (sending Excel spreadsheets to customers by email)
Interim ABAP-OO Developer
SAP SE
- Holistic Tax Research project (time-dependent tax codes and external tax billing for S/4HANA)
- Building a proof of concept (time-dependent taxes)
- OO design and development, data modeling using CDS views
- Customizing in SD, MM, FI (conditions, pricing, tax codes)
- Adjusting transaction FTXP for time-dependent tax codes
- Migration programs for old tax codes and postings (A003, ACDOCA)
Interim ABAP-OO Developer
TUI
- SAP implementation project UK (FI, CO, MM, SD, SRM)
- Various developments in FI, CO, MM, SD
- Reports (ALV OO in FI, MM, SD)
- Enhancements (FI, MM – BAdI, BTE)
- Interfaces (MM, SRM – XML, web services, RFC)
- Form development (SD invoice in Smart Forms, check in SAPScript)
- Batch input programming (postings in FI, billing plan in SD)
- Sub-project leadership (coaching and managing the offshore development team)
ABAP-OO Developer
Lidl Stiftung
- Reports (HCM, FI, CO, AM)
- Dialog program for selling old assets (SD order and invoice)
- Call transaction and batch input programming (HCM, FI, AM)
- Interface development using web services, BAPI, IDoc (FI)
- Form development (SAPScript, Adobe in HCM, LSO, FI)
- User exits (HCM, FI, AM, LSO)
- Dialog programming with MVC in HCM and FI
- Optimization and adaptation of legacy programs (HCM, FI, AM)
- Development of Web Dynpro interfaces (LSO)
- Technical documentation, developer testing, code review
- FI-AM implementation projects (Germany, France, Greece, Cyprus)
- HCM implementation projects (Greece, Bulgaria, Romania, Belgium)
- LSO implementation projects (Germany, Netherlands, France)
- Logistics implementation project (Austria)
- Form development for delivery notes (Adobe in LE and MM)
- Interface development (MM, SD master data with IDoc)
Senior SAP Consultant / ABAP Developer
Capgemini
- OMV Austria SAP upgrade and harmonization (Jan 2006 – Apr 2007)
- Le Belier Hungary SAP rollout (Sept 2005 – Dec 2005)
- Various developments in FI, CO, MM, SD, PM
- SAPScript form development (SD invoice, FI dunning notice)
- User exit and screen exit development (PM)
- ALV report development (MM, SD)
- Call transaction development (MM, CO)
- Customizing of the FI module (G/L, A/P, A/R)
- ABAP development (user exits, bank interface)
Senior SAP Consultant
Sanofi-Aventis
- SAP support and projects in the accounting department (FI module customizing)
- Sub-project leadership and management of ABAP developments
- Upgrade project (2004) as key user team manager and testing manager
- Implementation of new concepts in SAP (FI, AM, CO)
- ALV reports (FI, AM, CO)
- Batch input and call transaction development
- BAPI development for interfaces to external workflow systems
SAP Consultant
Freelancer
- Xerox Norway implementation project (Jan 2002 – May 2002): FI and AM customizing and uploading the old asset master
- Xerox Eastern Europe and Ireland support project (Sept 2001 – Dec 2001): SAP customizing FI, AM
- Europapier Hungary reimplementation project (Jul 2001 – Aug 2001): FI and AM customizing and ABAP development (open item aging, batch input, data correction in SD)
SAP Consultant
Masterfoods
- First level SAP support for 10 countries and 500+ users
- Customizing in FI, AM, CO
Summary
25+ years of experience as an ABAP/ABAP-OO (since 2006) developer and SAP consultant (FI, AM - 1999-2006). Development experience in FI, AM, CO, PS, HCM, MM, SD, LE, TM, IS-Retail, FMS, AIF, and S/4HANA. Performance-optimized programming, UML, OO design patterns, SOLID, Clean Code, code review, unit testing, test driven development, agile methods, Scrum. Consulting experience in FI, AM and CO (customizing and process knowledge).
Skills
Reports (Classic And Alv/alv-oo, Simple And Interactive, Using Mvc)
Dialog Programming (Using Mvc), Webdynpro
Batch Input / Call Transaction Programming
Interfaces (Bapi (Business Objects), Rfc, Idoc, Ale, Web Service, Xml), Mapping With Aif
Enhancements (User Exit, Badi, Bte)
Forms (Sapscript, Smart Forms, Adobe Forms With Javascript)
Abap On Hana, Cds Views, Amdp, Native Hana, Sqlscript
Eclipse Adt, Hana Studio, Vs Code, Git
Own Software Development In Java, Android And Python (Analytical Software And App For Bridge)
Competitive Programming Projects.
Web Development (Html, Css, Javascript)
Bridge Hobby (1999-2000: Junior (U25) National Player For Hungary)
Languages
Education
István Széchenyi University
Diploma in Economics · Győr, Hungary
Budapest University of Economics
Completed 6 semesters · Budapest, Hungary
Lehel Vezér High School
High school diploma · Jászberény, Hungary
Profile
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