About me
CV as file
Experience in SAP

My Curriculum Vitae

Freelancer consultant (Europe)
ABAP/4, ABAP OO & Web Developer
SAP HCM consulting
Since Oct. 2006


Since end of June 2016                       Nord/LB (Hannover)

Webdynpro development in module HCM (applications run in the portal). Development and customizing in the Enterprise Portal for ESS/MSS. Development von workflows, partially authorizations. Implementation of SAP-solution for Performance Management, customizing as well as programming and connecting it to the portal.


March 2016 - June 2016                       Barmenia Versicherung (Wuppertal)

Programming and consulting in SAP HCM in PA, OM, PE and Recruiting. Support during and after system upgrade. Creation of interfaces for data transfer from external systems (Recruiting) into SAP PA & OM about the new employee. XML-Files and SAP Transformations. Upload of documents to the employee´s personal files. Manager´s Desktop and HCM authorizations, HR Statements. LDAP-Connection to ADS.


March 2014 - Feb. 2016                        Roche (Mannheim & Remote)

I support this company for running SAP HCM´s sub module LSO (Learning Solution), with programming but also with customizing and data processing. I also take part in the topics ESS/MSS and Enterprise Portal in the case of Roche, mostly as developer but also as consultant. Implementation of OSS-Notes for the module HCM, but mostly for LSO. Modification of IDOCs. Consulting in the sub-modules PA, OM, ESS/MSS, as well as Customizing. Functional analysis of new requests in ESS/MSS. Research of (missing) authorizations when an incident is opened.


June-Dec. 2015                                    Grunner & Jahr (Hamburg)

Programming with ABAP/4, ABAP OO, WebDynpro & Workflow for creation and maintenance of several applications that run in the EP for the topic HCM. Maintenance of the Enterprise Portal itself.


Nov. 2013 - March 2014                       Lidl (Neckarsulm & Remote) & MAN (Munich & Remote)

I support these companies for starting SAP HCM´s sub module LSO (Learning Solution), mostly with programming but also there´s some functional, customizing and data processing activities. It is not only a matter of creating the web pages but also customizing in the Enterprise Portal; that means I take care of many aspects in the portal. Creation and modification of many POWLs for the portal regarding courses, participation, cancelation, history, etc. Creation of upload-programs for migrating data into the SAP system related to the end user´s courses. 2nd line support and incident-solution in LSO. Functional analysis of new requests and development of the application(s) in modules PA, OM & LSO. Research of (missing) authorizations when an incident is opened.


August - Oct. 2013                               DAK (Hamburg)

I support the company (medical services) with programming in module HR, sub modules PA, OM, PY  and occasionally FI/CO too and for that I use technologies like ABAP/4, ABAP OO, Workflow, WebDynpro, extensions, BADIs, etc. There is no real project in this case, it is only support in the daily tasks, mostly based on tickets and incidents that I have to investigate for being able to give an answer and a solution to the end user.


May - July 2013                                   C&A (Düsseldorf)

I am supporting the company C&A with consulting and programming activities in the module HR, sub-module Time Management, because it is to be rolled out in Switzerland beginning September. I am participating in Time Management, as well as PA & OM. The web applications that I am creating are done with Web Dynpro for ABAP.


August 2012 – April 2013                     Bayer Business Services (Leverkusen)

I am supporting the company Bayer with consulting and programming activities in the module HCM (sub-modules PA, OM & LSO). The company is running many web applications (BSP-pages but programmed with HTML5, CSS, JavaScript and Ajax) under the portal for the topics LSO, e-Recruiting, ESS and MSS. My tasks as programmer are to maintain the information and adapt/extend the web applications according to new demands. My tasks as consultant are within the sub-modules PA & OM. Another task is to investigate tickets and incidents that users report for being able to give an answer and a solution to the end user. Research of (missing) authorizations when an incident is opened.


Oct. 2009 to July 2012                         Deutsche Telekom (T-Systems)

Subsidiaries of T-Mobile in UK, A, NL & CZ

The corporation Deutsche Telekom has decided that web applications must be maintained by T-Systems GmbH and not any more by T-Mobile, so I had to emigrate to T-Systems but my tasks and service is just as it was before at T-Mobile (both are companies within Deutsche Telekom).

Project „Competencies“ and „Carrier Interview” for the Czech subsidiary, which has been created in BSP and is going to be incorporated to the Enterprise Portal as part of the Performance Management in CZ. With this web applications the HR department is going to evaluate the information from employees and managers regarding level of satisfaction during employee´s career in the company, as well as the self assessment by employees for targets set by the company.

Currently 3 persons work with me as team leader in the web-based topic Performance Management. I lead and train them, because they are relative new to SAP. Development in WebDynpro for the portal for different departments, as well as Workflows according to needs in every department or division. These web applications are later modified using FPM. Consulting in SAP HCM PA, PY & OM for T-Mobile in 3 countries: NL, A & CZ.

Migration of an existing SAP system into a central SAP system with EhP 5 for the subsidiary of T-Mobile in Holland. My area of responsibility is the topic Performance Management and partially SAP HCM PA, PY & OM with consulting and partial project leading for carrying out the migration, as well as programming in the payroll.


Jan. 2008 to Sept. 2009                        Deutsche Telekom (T-Mobile)

Subsidiaries in UK, A, NL & CZ, DE (Bonn and Münster)

I´ve been supporting this telecommunications corporation in module HR, especially regarding the topic performance management, with web and ABAP solutions. In a beginning I had to attend the web applications for DE, A, CZ, UK & NL. The corporation decided to separate DE due to a new project which is carried out by a different department. Since October 2009 I am responsible for technical support of the societies (4) outside Germany only, which still involves around 9000 employees.

Project “Target Management” for registering objectives and targets of employees in the portal. The web site is created with BSP, ABAP OO and JavaScript in module HR. Application is now productive in DE, UK, NL, CZ & A. This emulates the SAP HR solution Performance Management, since the company decided to have its own solution (they did not like SAP´s solution).

Project 'Accountabilities' with T-Mobile UK as requisitioner and test pilot for registering accountabilities of employees in the portal. This is done with BSP, ABAP OO and JavaScript in module HR. The application is to be rolled out in UK in sept. 2008 as a first step and then to CZ. Adaptation and correction of BSP-pages, creation of forms with SmartForms, correction of ABAP programs, Third-level support, correction of SAP Workflows, all in module HR.

Project ‘Identity & Access Management’ with WebDynpro for ABAP for being able to request new authorizations to users in several systems.

Reporting in BSP for the portal-based applications Target Management and Accountabilities. Much development of forms with SmartForms for generating PDF-files in the portal. Consulting in SAP HCM PA & OM in 5 countries: NL, A, DE, UK & CZ. Another task is to investigate tickets and incidents that users report for being able to give an answer and a solution to the end user.


Oct. to Dec. 2007                                             BrainLab in München (DE)

Support as developer during the introduction of the SAP system. Creation of Adobe forms. Extension of standard functionality with Enhancement-Points. I created ABAP programmes for the migration of data from the legacy system into SAP for modules MM & PP. Some scripts using SAP GUI ext for changing the appearance of screens in the Logistics.


Feb. to Sept. 2007                                           Siemens IS in München (DE)

I worked in the upgrade of all corporation's SAP R/3 systems in Germany to version MySAP 2005, as a first step. In a later step we implemented an important template worldwide for consolidation of data for finance and logistics. I created several programmes with ABAP/4 and OO for the migration of data from different systems into SAP. Another task is to investigate tickets and incidents that users report for being able to give an answer and a solution to the end user.

Oct. 2006 to Febr. 2007                                    VW, A.G. in Kassel (DE)

I was responsible of the introduction of Module PPM (Packaging Planning Module), which was created from zero using ABAP/4, ABAP OO and SAP Dialog Programming. This module supports the employees worldwide when packaging the new parts in the warehouse.


Trainings from 2011 to 2016

I have worked occasionally for Arburg (production of machines), SAP Education Austria, Airbus (manufacturer of planes), Logica (consultancy in France), T-Systems Slovakia (telecommunications and IT-services) and Braunschweiger Zeitung (newspaper) for training the employees in ABAP/4, ABAP OO & Workflow topics, as well as development of forms using SmartForms. This work has been either for a couple of days or up to a maximum of 2 weeks.

At the end of April and June 2012 I spent 2 weeks respectively in Kosice (SK) training several employees of T-Systems in programming (ABAP/4, ABAP OO, BSP, Enhancements). Among others, the topics that I covered were ABAP OO, BSP development, enhancements, etc.


ABAP/4, ABAP OO & BSP Developer
From July ’01 to Sept. ´06


July 2005 - Sept. 2006                          Siemens A&D in Nürnberg

The company carried out an important project (PMD = Product Master Data), in order to create and maintain the data of material master, mainly, and sales information worldwide through the internet (in connection with SAP WAS and BSP pages -> Web Development). In some locations there’s no SAP system, so it all will be accessed, displayed and maintained through the internet. For supporting the company, I created the necessary BSP-pages, in a big team, with ABAP OO, HTML, HTML Business & JavaScript, all based in SAP WAS 6.20. Partial start of the project was due for the first week in October 2005; real start in productive system was 02.01.2006. Creation of programs for downloading MM-data as XML files.

After the productive start of the web development, we were occupied with change requests and the broadening of the PMD-System as well as with a second (MMP = technical data) and third (FDB = Fabrikat Datenbank) web project. MMP is a complementary system to PMD that maintains the technical data of materials and FDB was the forerunner system for creation and maintenance of material data. The functionality of this old system had to be integrated to PMD. All this was ready by September/October 2006.


May 2005 - July 2005                           T-Systems in Stuttgart

I worked a couple of months for supporting the staff of the company in module Project System (PS) with new programs, as well as adaptation of existing programs. We had to transmit the information from SAP R/3 to a data base in Oracle in a different system; this means data migration.


July 2004 – May 2005                           Siemens Power Generation in Erlangen

The company carried out an important project (PLM = Product Lifecycle Management) in order to standardize processes and interchange information between existing and future systems (SAP R/3) through IDOCs & RFCs, as well as the implementation of the SAP R/3 system in some sections of the plant Mülheim and in plants New Delhi, Budapest & Newcastle. The main project involved different teams in the plants in Erlangen (main place), Erfurt & Mülheim in Germany, as well as partially (as secondary project) Orlando & Charlotte in USA. In this case my team had to do much with bills of materials, material master and the module MM in general, document management, classes and characteristics, Workflow, RFCs, SAPscript forms, ABAP OO and SAP Business Workplace. Several programs were created for migration of data.


Dec. 2002 – July 2004                          Siemens L&A in Offenbach

In this case, there was no real project to carry out. My work was, among others, to develop new programs and to modify and adapt existing programs (inclusive some standard programs) for modules HR, MM, SD, QM and FI/CO, as needed. Additionally, I had to support the responsible of module MM in the daily work, either with developments or different tasks in customizing, material master, purchase orders, etc.


May 2002 - Oct. 2002                            Siemens Dematic in Konstanz

The administration and maintenance of the R/3 system at the subsidiary in Arlington (USA) had to be moved to Konstanz (Germany). My tasks here were to translate the existing programs, forms, messages, etc. into english, as well as to generate new programs as needed. An important project was “Antrag auf Materialzulassung“, that is, creation of materials in SAP. In this case I automated the former process, in which 5 different departments participated, under SAP with a new development (instead of papers) for modules MM/SD. In this case I lead a team of 3 colleagues, supported by the staff of the participating departments.

March 2002 - April 2002                       MEA Meisinger in Aichach

There was a data migration process from an old system into SAP R/3. I was responsible for writing a collection of programs, which must create or change data in the material master (per batch-input) in Module MM. I adapted several SAPscript forms.


Jan. 2002 - Feb. 2002                           Softwaresupport Raab in Erlangen

My task was to update the homepage of the company with HTML, Dynamic HTML and JavaScript.

Dec. 2001                                            Clariant in Frankfurt-Höchst

I created or adapted a couple of work tools (programs, RFC-capable functions, SAPscript forms) for the modules MM/SD and corrected some existing web pages (in connection with the SAP Internet Transaction Server). The main task was to collect data from 4 different servers (Latin America, NAFTA, Europe & Asia) and save it in a 5th server per RFC; this means it was partially data migration.

July 2001 – Nov. 2001                          Siemens SBS in Erlangen

I had to adapt a big collection of ABAP programs for the accounting department, according to new guidelines established by the corporation in modules FI/CO. I adapted several SAPscript forms.


SIEMENS A&D (México)
ABAP/4 Developer
April ‘98 until June ‘01

I worked for the informatic department in Mexico and my task was to create and adapt new programs and developments with ABAP and/or SAP Dialog Programming for the end users in all existing modules (MM, PP, FI/CO, SD, among others). The users were helped by me in order to use the SAP system and understand it. Additionally, I carried out different courses about SAP-topics (introduction to SAP, R/3 in general, execution of queries and programs, creation of queries, check and print spools, etc).

I created the necessary SAPscript forms, also attended the labeling devices for the production department and created the necessary code for printing information from SAP. Labels were sticked to the semi-finished and finished products.


Additional tasks:

ISO 9001 à      I was at the same time responsible for the documents and forms according to ISO 9001 (quality of product), organization, implementation of guidelines for creation of documents (procedures, instructive), as well as the official documents and technical information. I also had to audit the participating departments to confirm that the guidelines were carried out.

ISO 14000 à the goal of the plant was to get a certification ISO 14000 (ecology and work security) by the end of 2001. I took part in the process of preparation, together with a group of colleagues from different departments. I participated in an ISO 14000 training course and achieved a certificate.


List of SAP R/3 projects at Siemens A&D:

Mai – Juni 2001:

Implementation of the project “Office Online” for the production and engineering departments (they must have all necessary tools in just one screen). The concept spans over the use of HTML Code, Javascript, Images and Links under SAP in Module PP.

Feb. – Apr. 2001:

Implementation of a Data Warehouse System (not SAP´s module BW) for Siemens A&D related to the production and logistics areas of the factory (modules PP/MM). It had to deal with the purchase orders, delivery of end product, processing time, amount of sales, etc.  

Nov. 2000 – Jan 2001:

I developed a system under SAP Online Programming in order to be able to better control special orders coming from the USA and Canada. The system is able to produce graphics indicating the status of the orders and more. 

The requirements regarding the development of this system was initiated by the production department. However, the functionality of the system was enlarged and improved over the time so that it could be also used by the logistics, engineering, auditing and production management. 

Aug. – Oct 2000:

Active participation in the update process of the SAP system from version 3.0F to 4.7D, which included training of end users, program tests, documentation, etc.

Jan. – Mai 2000:

Reengineering process in the production department, which involved the normativity of activities and capacity in the 3 areas of the plant (single phase motors, three-phase motors and electronic devices), as well as support, training and new developments in module PP for the employees.


Bank activities
Jan. 1990 - March 1998

Great experience in bank activities, in which I carried out different work tasks, in administration as well as software development, bank-related positions and client service. My last position was at headquarters (Division Guadalajara) and depended directly from the Director as vice-manager in the area of administration.

I worked almost one year (1993) as vice manager in one of the biggest branches of the bank and my activities had to deal with all type of administration. Additionally, I was boss of a group of 22 employees (the branch had in that year 30 employees).

ABAP/4 Expert  | Experienced consultant in SAP & ABAP/4