André Siegmund - IT-Consultant SAP® Authorizations RAD/UAM, Basis Administration, SAP® IS-U EMD, Billing Processes

Q: Where is André based?

André is based in Berlin, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does André speak?

André speaks the following languages: German (Native), English (Advanced), Russian (Elementary), Thai (Elementary) .

Q: How many years of experience does André have?

André has at least 32 years of experience. During this time, André has worked in at least 19 different roles and for 18 different companies . The average length of individual experience is 1 year and 5 months . Note that André may not have shared all experience and actually has more experience.

Q: What is André's latest experience?

André's most recent position is IT-Consultant SAP® Administration at Lechwerke AG (LEW) .

Q: What companies has André worked for in recent years?

In recent years, André has worked for Lechwerke AG (LEW) , E.ON Energie Deutschland GmbH , and EURASICON UG .

Q: Which industries is André most experienced in?

André is most experienced in industries like Information Technology (IT) , Retail , and Manufacturing . André also has some experience in Utility Services , Energy , and Banking and Finance .

Q: Which business areas is André most experienced in?

André is most experienced in business areas like Sales , Information Technology (IT) , and Audit . André also has some experience in Quality Assurance (QA) , Business Intelligence , and Operations .

Q: Which industries has André worked in recently?

André has recently worked in industries like Information Technology (IT) , Energy , and Utility Services .

Q: Which business areas has André worked in recently?

André has recently worked in business areas like Information Technology (IT) and Audit .

Recommended expert

Berlin, Germany

Experience

Oct 2022 - Jan 2026

3 years 4 months

IT-Consultant SAP® Administration

Lechwerke AG (LEW)

IT services for administering SAP® systems NETZ/Sales, BW, Core, Portal
Administering SAP® authorizations and users using central user management (ZBV) in SAP® Solution Manager
Designing and further developing SAP® authorization roles
Assigning roles according to requests
Creating, modifying, and deleting users
Handling incidents and troubleshooting (e.g., authorization trace, debugging in test systems)
Collaborating with the SAP® development team on new implementations and process changes
Special tasks
Implementing privileged user management (PUM) 2023–2025 using Security Bridge
Decommissioning SAP® Core and migrating to S/4HANA

Oct 2019 - Jan 2026

6 years 4 months

IT-Consultant SAP® Authorization Management

E.ON Energie Deutschland GmbH

Independently managing authorization assignment processes
Coordinating and defining measures to optimize and further develop authorizations
User and role management for IS-U and CRM (>5,000 users)
Creating new roles, modifications, and enhancements
Reviewing user requests (release and approvals)
Supporting users and projects, ticket processing in SOLMAN
Migration from GRC to S/4/United
System analyses and data cleanup in IS-U, CRM, and GRC
Risk management using GRC (SoD and FTK)
Supporting internal and external audits
Authorizations for legacy systems and the market participant communication system
Participation in projects (DSTF, BANG, EEM and OneBilling)
Processing and cleanup of SoD and FTK
Independently managing UAM and RAM for SAP® test systems LIW, ILM, and OneBilling (S/4HANA)

May 2019 - Sep 2019

5 months

IT-Consultant (Project loveERP)

SPARK Networks SE

Creating an SAP® authorization concept for FI-AP, FI-GL, FI-AA, FI-AR, FI-CO, and FI-CA
Developing test scripts
Conducting development tests and documentation in the JIRA ticketing system
Creating new users and assigning authorizations
Customizing the ERP FI general ledger (new)
Building FI-AP reports (Quality Check) with InfoSet/Query
Electronic Bank Statement, IDoc processing, and SAP® migration

Sep 2018 - Mar 2019

7 months

IT-Consultant SAP® Authorization Management

Sächsische Aufbaubank – Förderbank

Resolving segregation of duties conflicts in ProSAB, KfW-BDO-Portal, BAIS, and RMS
Advising on user and role management as well as segregation of duties and RFC interface security
Creating and quality-assuring SAP® authorization concepts
Implementing Bundesbank requirements
SAP® GRC evaluations and simulations
Ticket handling in JIRA (modifying and adjusting roles and authorizations in ERP, PI, and HCM)

Jun 2018 - Aug 2018

3 months

IT-Consultant E.ON Application Sourcing Program

Wipro Technologies

Outsourcing SAP® system operations and support for sales and energy networks in Germany
Creating technical and functional documentation for an IS-U (EDM) system
Coordination between business and support
Handling incidents and change requests
Knowledge transfer to India

May 2017 - Dec 2017

8 months

IT Consultant SAP® Authorization Management

Sächsische Aufbaubank – Förderbank

Consulting on user and role management, segregation of duties, and RFC security
Creating and quality-checking SAP® authorization concepts
Implementing requirements from the Bundesbank
SAP® GRC reports and simulations
Handling tickets in JIRA
Assigning roles and permissions using SAP® IDM

Jun 2015 - Jan 2026

10 years 8 months

Owner and Managing Director, IT Consultant

EURASICON UG

Jul 2014 - Mar 2017

2 years 9 months

IT Support in the SLP Meter Reading Control Team (South)

e.kundenservice Netz GmbH

Independently handling work packages and small projects in IS-U and CRM to optimize feed-in meter readings
Analyzing IT processes and initiating process and system optimizations, including system tests
Analyzing master and device data in IS-U and CRM, programming and using InfoSets/queries
Documenting in Excel and PowerPoint
Test and quality management in the E.ON ToolKit TK-X, reporting, and data cleansing across all company codes
Developing a BW reporting to display key figures from Customer Self Care centers and meter reading quotas
Collaborating in SCRUM development teams for CR requirements in SAP IS-U, BW, CRM, and the Customer Self Care Portal
Preparing, executing, and following up on the cut-off date meter reading and invoicing of network feed-in suppliers, including creating the attestation and executive board reporting

Apr 2014 - Jun 2014

3 months

SAP® Basis Administration and Authorizations

nkt cables GmbH

Handling tickets in the NIMBUS ticket system for SAP® 4.6C
Administering user authorizations, user clean-ups, role creation, and role adjustments
Preparing and following up on the release upgrade from SAP® 4.6C to ECC 6.0

Oct 2013 - Feb 2014

5 months

Go-live Support in Data Quality Management

E.ON Kundenservice GmbH

Test and quality management in the E.ON ToolKit TK-X, reporting, and data cleansing across all company codes
Preparing and creating new ToolKit checks and change requests for IS-U and CRM
Creating InfoSets and queries to analyze and monitor data quality

Jun 2013 - Nov 2013

6 months

SAP® Basis Administration and Authorizations

nkt cables GmbH

Ticket processing in the NIMBUS ticket system for SAP® 4.6C
Administration of user authorizations, user clean-ups, role creation and role adjustments
Preparation, implementation and follow-up of the upgrade from SAP® 4.6C to ECC 6.0

Jan 2013 - Apr 2013

4 months

Production support for network billing

E.ON Best Service GmbH

Test and quality management in the E.ON ToolKit TK-X, reporting and data cleansing across all REVUs
Preparation and creation of new ToolKit tests and change requests for IS-U and CRM
Creation of InfoSets and queries to analyze and monitor data quality

Jan 2013 - Apr 2013

4 months

Consultant

Internal IT service provider project

Feasibility study for implementing a BW design concept for ToolKit reporting
Setup of the data model with transformation and data transfer processes and loading weekly test data
Reporting using Business Explorer tools

Sep 2012 - Nov 2012

3 months

Consultant

Internal SAP® consulting project

Installation of ERP systems and merging into a system landscape based on Windows Server 2003/2008 and SAP® Solution Manager 7.0

Jul 2012 - Aug 2012

2 months

SAP® Developer and Forms

Teckentrup GmbH

Development and implementation of SmartForms for customer complaint processing
Programming and customizing of interfaces and forms

Aug 2011 - Jun 2012

11 months

Production Support for Network Billing

E.ON Best Service GmbH

Test and quality management in E.ON ToolKit 2.0 / TK-X, reporting and data cleansing across all REVUs
Creation of InfoSets and queries to monitor data quality
EDI AS 1440 reporting of grid feed-ins and invoicing rate (executive board report)
Implementation of the SAP® authorization concept, user cleanup and role assignment

Jun 2011 - Jun 2011

1 month

Production Support for Billing Service

E.ON Best Service GmbH

Comparison of municipal discounts from network usage price and reporting of any differences
Reporting of actual billing and actual plus balance sheet accruals
Comparison of accounting results of two systems (SAP® and ecount)
Data structure analysis and data modeling
Optimization of SAP® InfoSets and queries

Apr 2011 - Oct 2011

7 months

BW/BI-Consultant

Stadtwerke Flensburg

Setup of a BW/BI client for data management and modeling of master and transactional data
Customizing of extractors, DataSources, InfoPackages, InfoObjects, DSOs and InfoCubes
Creation of transformations and data transfer processes
Administration and testing of InfoProviders as well as setup and maintenance of RFC connections and process chains
Reporting and report design using Business Explorer tools

Jan 2011 - Dec 2015

5 years

IT Consultant

IT-Power GmbH

Jan 2001 - Dec 2008

8 years

Sales Manager LOEWE Galerie Berlin

LOEWE AG

Jan 1999 - Dec 2001

3 years

Business Manager / Shop Manager

Bang & Olufsen Deutschland GmbH

Jan 1991 - Dec 1999

9 years

Technical Business Administrator

Bang & Olufsen ZEISBERG Berlin

Summary

I have a strong background in SAP administration and authorization management with extensive experience in energy, banking, and IT consulting. I have built and optimized SAP authorization roles, managed user accounts, and supported smooth system migrations while ensuring data integrity and security.

I deliver reliable SAP system administration and troubleshooting, always focused on accurate user management and compliance. My expertise spans SAP BASIS, user management, system testing, and reporting, allowing me to provide solid support to complex SAP landscapes.

Skills

Core Areas

Sap® Authorization Management (Uam/ram) / Basis Administration
Sap® Grc/idm
Sap® Is-u / Crm
Sap® Bw/bi
Sap® Fi/co Consulting
Process Consulting / Modeling

Industry Knowledge

Energy
Banking
Consumer Electronics (Sales And Services)
Military

It Qualifications

Sap®
Sap® Governance, Risk & Compliance (Grc)
Sap® Identity Management (Idm)
Sap® Solution Manager 4.0/7.0
Sap® Security Bridge
Sap® Erp Customizing
Sap® Abap Workbench
Sap® Netweaver Development Studio
Sap® Business Explorer
Sap® Is-u
Sap® Crm
Sap® S/4 Hana
E.on Toolkit 2.0 / Tk-x

Methods / Organization

Requirements Management
Change Management
Process Modeling
Scrum

Standard Software And Tools

Windows Xp, Vista, 7, 8, 10, 11
Mac
Linux
Windows Server 2003/2008
Ms-office 2003 / 2007 / 2013 / 365
Jira
Nimbus
Splunk

Programming Languages

Abap
Sql

Languages

German

Native

English

Advanced

Russian

Elementary

Thai

Elementary

Education

Radio mechanic / radio and TV technician

Master radio mechanic (military industry)

Technical business administrator

Certifications & licenses

ISTQB® Certified Tester

Project management (PM-TÜV® certificate A35-495428-2011)

SAP® ABAP Developer (Certificate ID: S0006957938)

Certified SAP® Development Consultant SAP® NetWeaver '04'

Profile

Created

February 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is André based?

André is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

What languages does André speak?

André speaks the following languages: German (Native), English (Advanced), Russian (Elementary), Thai (Elementary).

How many years of experience does André have?

André has at least 32 years of experience. During this time, André has worked in at least 19 different roles and for 18 different companies. The average length of individual experience is 1 year and 5 months. Note that André may not have shared all experience and actually has more experience.

What roles would André be best suited for?

Based on recent experience, André would be well-suited for roles such as: IT-Consultant SAP® Administration, IT-Consultant SAP® Authorization Management, IT-Consultant (Project loveERP).

What is André's latest experience?

André's most recent position is IT-Consultant SAP® Administration at Lechwerke AG (LEW).

What companies has André worked for in recent years?

In recent years, André has worked for Lechwerke AG (LEW), E.ON Energie Deutschland GmbH, and EURASICON UG.

Which industries is André most experienced in?

André is most experienced in industries like Information Technology (IT), Retail, and Manufacturing. André also has some experience in Utility Services, Energy, and Banking and Finance.

Which business areas is André most experienced in?

André is most experienced in business areas like Sales, Information Technology (IT), and Audit. André also has some experience in Quality Assurance (QA), Business Intelligence, and Operations.

Which industries has André worked in recently?

André has recently worked in industries like Information Technology (IT), Energy, and Utility Services.

Which business areas has André worked in recently?

André has recently worked in business areas like Information Technology (IT) and Audit.

What is André's education?

André attended education in Radio mechanic / radio and TV technician.

Does André have any certificates?

André has 4 certificates. Among them, these include: ISTQB® Certified Tester, Project management (PM-TÜV® certificate A35-495428-2011), and SAP® ABAP Developer (Certificate ID: S0006957938).

What is the availability of André?

André will be available full-time from February 2026.

What is the rate of André?

André's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.