André Siegmund - SAP Authorization and Basis Consultant

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Berlin, Germany

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Experience

Oct 2022 - Jan 2026

3 years 4 months

IT Consultant SAP® Administration

Lechwerke AG (LEW)

IT services for the administration of the SAP® systems NETZ/Sales, BW, Core, Portal
Administration of SAP® authorizations and users via central user administration (ZBV) in SAP® Solution Manager
Setup and further development of SAP® authorization roles
Role assignment according to requests
Creation, change, and deletion of users
Incident handling and error analysis (e.g. authorization trace, debugging in test systems)
Cooperation with the SAP® development team on new implementations and process changes
Special tasks
Execution of Privileged User Management (PUM) 2023–2025 using Security Bridge
Decommissioning of the SAP® Core system and migration to S/4HANA

Oct 2019 - Jan 2026

6 years 4 months

IT Consultant SAP® Authorization Management

E.ON Energie Deutschland GmbH

Independent handling of authorization assignment processes
Coordination and definition of measures to optimize and further develop authorizations
User and role management for IS-U and CRM (>5,000 users)
New role creation, changes, and extensions
Review of user requests (approval and authorizations)
Support for users and projects, ticket handling in SOLMAN
Migration from GRC to S/4/United
System analyses and data cleansing in IS-U, CRM, and GRC
Risk management using GRC (SoD and FTK)
Support for internal and external audits
Authorizations for legacy systems and the system for market partner communication
Work in projects (DSTF, BANG, EEM, and OneBilling)
Handling and cleanup of SoD and FTK
Independent UAM and RAM for the SAP® test systems LIW, ILM, and OneBilling (S/4HANA)

May 2019 - Sep 2019

5 months

IT Consultant (Project loveERP)

SPARK Networks SE

Creation of an SAP® authorization concept for FI-AP, FI-GL, FI-AA, FI-AR, FI-CO, and FI-CA
Development of test scripts
Execution of development tests and documentation in the JIRA ticket system
New user creation and assignment of authorizations
Customizing of the new ERP FI general ledger
Setup of 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

Cleanup of segregation of duties conflicts in ProSAB, KfW-BDO portal, BAIS, and RMS
Consulting on user and role management as well as segregation of duties and RFC interface security
Creation and quality assurance of SAP® authorization concepts
Implementation of Bundesbank requirements
SAP® GRC evaluations and simulations
Ticket handling in JIRA (changes and adjustments to roles and authorizations in ERP, PI, and HCM)

Jun 2018 - Aug 2018

3 months

IT Consultant E.ON Application Sourcing Program

Wipro Technologies

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

May 2017 - Dec 2017

8 months

IT Consultant SAP® Authorizations Management

Sächsische Aufbaubank – Förderbank

Consulting on user and role management, segregation of duties, and RFC security
Creation and quality assurance of SAP® authorization concepts
Implementation of requirements from the Bundesbank
SAP® GRC reports and simulations
Ticket handling in JIRA
Assignment of roles and authorizations 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 Team SLP Meter Reading Control (South)

e.kundenservice Netz GmbH

Independent handling of work packages and small projects in IS-U and CRM to optimize feed-in meter reading
Analysis of IT processes and initiation of process and system improvements, including system tests
Evaluation of master data and device data in IS-U and CRM, programming and use of InfoSet/Queries
Documentation in Excel and PowerPoint
Test and quality management in the E.ON ToolKit TK-X, reporting and data cleanup across all company codes
Development of BW reporting to display key figures from Customer Self Care Centers and meter reading quotas
Work in SCRUM development teams for change request requirements in SAP IS-U, BW, CRM, and the Customer Self Care Portal
Preparation, execution, and follow-up of the key date meter reading and billing of grid feed-in customers, including creation of the certificate and board reporting

Apr 2014 - Jun 2014

3 months

SAP® Basis Administration and Authorizations

nkt cables GmbH

Ticket handling in the NIMBUS ticket system for SAP® 4.6C
Administration of user authorizations, user clean-up, role building, and role adjustments
Preparation and follow-up of the release change from SAP® 4.6C to ECC 6.0

Oct 2013 - Feb 2014

5 months

Initial Support Data Quality Management

E.ON Kundenservice GmbH

Test and quality management in the E.ON ToolKit TK-X, reporting and data cleanup across all company codes
Preparation and creation of new ToolKit checks and change requests for IS-U and CRM
Creation of InfoSets and queries for evaluating and monitoring data quality

Jun 2013 - Nov 2013

6 months

SAP® Basis Administration and Authorizations

nkt cables GmbH

Ticket handling in the NIMBUS ticket system for SAP® 4.6C
Administration of user authorizations, user cleanup, role building and role adjustments
Preparation, implementation and follow-up of the release change 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 cleanup across all REVU’s
Preparation and creation of new ToolKit checks and change requests for IS-U and CRM
Creation of InfoSets and queries for evaluating and monitoring data quality

Jan 2013 - Apr 2013

4 months

Consultant

Internal IT Service Provider Project

Feasibility study for implementing a BW technical concept for ToolKit check 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 consolidation 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 handling
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 cleanup across all REVU’s
Creation of InfoSets and queries to monitor data quality
EDI AS 1440 reporting of network feed-in points and billing rate (board report)
Implementation of the SAP® authorization concept, user cleanup and role assignment

Jun 2011 - Jun 2011

1 month

Production Support Billing Service

E.ON Best Service GmbH

Comparison of municipal discounts from network usage price and reporting of existing differences
Reporting of billing actuals and actuals+ accruals
Comparison of billing results from two systems (SAP® and ecount)
Data structure analyses 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 with Business Explorer tools

Jan 2011 - Dec 2015

5 years

IT Consultant

IT-Power GmbH

Jan 2001 - Dec 2008

8 years

Sales Manager LOEWE Gallery Berlin

LOEWE AG

Jan 1999 - Dec 2001

3 years

Managing Director / Shop Manager

Bang & Olufsen Deutschland GmbH

Jan 1991 - Dec 1999

9 years

Technical Sales Clerk

Bang & Olufsen ZEISBERG Berlin

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Retail, Manufacturing, Utilities, Energy, and Banking and Finance.

Information Technology

Retail

Manufacturing

Utilities

Energy

Banking and Finance

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Sales, Information Technology, Audit, Quality Assurance, Business Intelligence, and Operations.

Sales

Information Technology

Audit

Quality Assurance

Business Intelligence

Operations

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

Main Areas Of Expertise

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 Experience

Energy Industry
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 television technician

Senior radio mechanic master (military industry)

Technical business administrator

Certifications & licenses

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

Certified SAP® Development Consultant SAP® NetWeaver `04'

Statistics

Experience

Total positions 22

Experience in Information Technology 15 y

Avg length 2 y 4 m

Longest experience 10 y 7 m

Expertise

Recent roles IT Consultant SAP® Administration, IT Consultant SAP® Authorization Management, IT Consultant (Project loveERP)

Main industries Information Technology, Retail, Manufacturing

Main business areas Sales, Information Technology, Audit

Qualifications

Certifications earned 4

Profile

Member since

February 2026

Last update

August 2026

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Frequently asked questions

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

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

André has at least 33 years of experience. During this time, André has worked in at least 18 different roles and for 18 different companies. The average length of individual experience is 2 years and 6 months. Note that André may not have shared all experience and actually has more experience.

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).

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

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

André is most experienced in industries like Information Technology, Retail, and Manufacturing. André also has some experience in Utilities, Energy, and Banking and Finance.

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

André has recently worked in industries like Information Technology, Energy, and Utilities.

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

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

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

André will be available full-time from January 2027.

Daily rate distribution

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Daily rate avg. 1015 €

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Median rate 1000 €

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Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.