Heinz-Dieter Lühmann

Q: Where is Heinz-Dieter based?

Heinz-Dieter is based in Düsseldorf, Germany .

Q: What languages does Heinz-Dieter speak?

Heinz-Dieter speaks the following languages: German (Native) .

Q: How many years of experience does Heinz-Dieter have?

Heinz-Dieter has at least 25 years of experience. During this time, Heinz-Dieter has worked in at least 26 different roles and for 21 different companies . The average length of individual experience is 1 year and 9 months . Note that Heinz-Dieter may not have shared all experience and actually has more experience.

Q: What is Heinz-Dieter's latest experience?

Heinz-Dieter's most recent position is Consultant at CH Crypto Group .

Q: What companies has Heinz-Dieter worked for in recent years?

In recent years, Heinz-Dieter has worked for CH Crypto Group , CH-Konzern , Aitus UG , Finanzgruppe und KVG im Großen Schweitzer Versicherung Konzern , and IT Service Provider .

Q: Which industries is Heinz-Dieter most experienced in?

Heinz-Dieter is most experienced in industries like Information Technology , Insurance , and Banking and Finance . Heinz-Dieter also has some experience in Healthcare , Transportation , and Energy .

Q: Which business areas is Heinz-Dieter most experienced in?

Heinz-Dieter is most experienced in business areas like Information Technology , Operations , and Customer Service . Heinz-Dieter also has some experience in Audit , Project Management , and Strategy .

Q: Which industries has Heinz-Dieter worked in recently?

Heinz-Dieter has recently worked in industries like Information Technology , Insurance , and Banking and Finance .

Q: Which business areas has Heinz-Dieter worked in recently?

Heinz-Dieter has recently worked in business areas like Information Technology , Audit , and Operations .

Recommended expert

Düsseldorf, Germany

Check rate

Experience

Dec 2022 - Jun 2023

7 months

Germany

Consultant

CH Crypto Group

Advice on governance and information security topics: BAIT, MaRisk
Creating governance documents (policies, guidelines)
Developing emergency manuals
Based on BSI IT baseline protection standard 200-4 and ISO2700x

Aug 2022 - Sep 2022

2 months

IT Consultant

CH-Konzern

Designing and developing an emergency manual based on BSI IT baseline protection standard 200-4 and ISO2700x

Jan 2022 - Present

4 years 8 months

Managing Director

Aitus UG

Expert for data protection
Expert for information technology
Management
Consulting / coaching / training on topics: BAIT, KAIT, VAIT, DORA, ISO27001/2
Project management / organization / coordination
Administration / support for Lotus Notes and Domino, Windows, Novell, Linux, MS Office, Open Office

Nov 2021 - Present

4 years 10 months

Consultant for governance and information security

Finanzgruppe und KVG im Großen Schweitzer Versicherung Konzern

Consulting and support on governance and information security topics: KAIT, KamRisk, KAGB
Consulting and support on data protection topics as part of the governance optimization project
Rewriting governance and IT governance documents (policies, guidelines)
Creating emergency manuals and BCM concept as required by KAIT
Based on BSI IT baseline protection standard 200-4 and ISO 27001
Preparing documents for PwC audit
Redesigning access management according to KAIT with separation of duties
Administration and user management and setup of RE-VC and Immopac
Vendor management
SOC for KVG stakeholders, creation and maintenance of information networks

Nov 2020 - Oct 2021

1 year

2nd/3rd Level Support

IT Service Provider

2nd/3rd level support for Domino Notes, Linux, Jira, Confluence
Administration/installation of Domino servers on Windows Server and Linux Server, setup of clusters
Administration of Atlassian Jira Service Desk, setup and configuration of new service desk
Customizing and creating new request types, issue types and portal groups, creating SLAs, adjustments, setup and testing of new apps
Administration and setup of Atlassian Confluence, creating customer spaces
Creating documentation pages and FAQs, creating and configuring meeting sites

Jun 2020 - Nov 2020

6 months

Düsseldorf, Germany

2/3rd Level Support

Agency

2/3rd Level Support Linux, MySQL, Azure tenant, GitLab, DNS, Pimcore, Nginx, DevOps, O365
Administration of Ubuntu VM servers on Microsoft Azure, troubleshooting mapping of data storage to the VMs
MySQL administration: creating DBs and users, making dumps and restores
GitLab administration: creating variables and running pipelines, troubleshooting and adjustments
O365 administration: setting up mail distribution lists, creating groups, rooms, calendars, and permissions
Management and administration of SonicWall: setting up VPN tunnels, Jocker DNS management
Tools used: Jira, Git, aad.portal Admin Center, PuTTY, KeePass, WinSCP, nano

Jun 2019 - Apr 2020

11 months

Münster, Germany

2nd Level Support

LBS West

2nd Level Support for Lotus Notes and Domino 8, 9 and Traveler
Administration of mail databases, forwarding, distribution lists, troubleshooting mail files and calendars
MDM administration with BlackBerry UEM (iPhone, iPad)
Management and administration of IronPort Cisco C300V Email Security Appliance version 11.1.2
Support for 15 Domino servers with 2000 users across 3 domains
Tools used: Domino Admin, Panagenda (Marvel Client Config), Helpline Ticket Tool

Sep 2017 - Mar 2019

1 year 7 months

Erfurt, Germany

3rd Level Support Operations Lotus Notes 9

DB Systel for Deutsche Bahn AG

Administration of mail databases, forwarding, distribution lists, troubleshooting mail files and calendars
Support for about 80 Domino servers with 132000 users
Tools used: Domino Admin, HP Service Manager Katalog Plus, Bindford 6200, Nsh DB Catalog, Acat, PuTTY
Domino administration on SLES 09 - 11 and Red Hat OS systems

Jun 2017 - Aug 2017

3 months

Berlin, Germany

IT Administrator

VKBIT for the Fire Insurance Berlin and VKB Munich / Sparkassen Financial Group

User, group, and directory administration
Assigning permissions in line with data protection and audit requirements in the life and health insurance environment
About 5000 users
Ticket and order management via BMC Remedy
Tools used: IManager, SCCM, Hyena, Domino Administrator
Administration of Novell, Windows Server, and Lotus Domino Server
Server- and client-side user help desk
Advising users on creating data protection and audit-compliant AMS tasks

Feb 2015 - Dec 2016

1 year 11 months

Berlin, Germany

IT Administrator

VKBIT for the Fire Insurance Berlin and VKB Munich / Sparkassen Financial Group

User, group, and directory administration
Assigning permissions in line with data protection and audit requirements in the life and health insurance environment
About 5000 users
Ticket and order management via BMC Remedy
Tools used: IManager, SCCM, Hyena, Domino Administrator
Administration of Novell, Windows Server, and Lotus Domino Server
Server- and client-side user help desk
Advising users on creating data protection and audit-compliant AMS tasks

Feb 2014 - Jun 2014

5 months

Berlin, Germany

IT Administrator

GaVi for the Feuersozität Berlin and VKB Munich / Sparkassen Financial Group

Redesign of the Novell directory structure in preparation for the Windows 8 migration
User group and directory administration
Assignment of permissions in compliance with data protection and audit requirements in the life and health insurance area
Approx. 5000 users
Ticket and order management using BMC Remedy
Tools: IManager, SCCM, Hyenar, Domino Administrator
Administration of Novell, Windows Server and Lotus Domino Server
User help desk on server and client side
Advising users on creating data protection and audit compliant AMS tickets

Oct 2013 - Jan 2014

4 months

Munich, Germany

IT Administrator

GaVi for the Bavarian Insurance Chamber / Sparkassen Financial Group

Redesign of the Novell directory structure in preparation for the Windows 8 migration
User group and directory administration
Assignment of permissions in compliance with data protection and audit requirements in the life and health insurance area
Approx. 5000 users
Ticket and order management using BMC Remedy
Tools: IManager, SCCM, Hyenar, Domino Administrator
Administration of Novell, Windows Server and Lotus Domino Server
User help desk on server and client side
Advising users on creating data protection and audit compliant AMS tickets

Jan 2013 - Jul 2013

7 months

Central User Administration Specialist

AOK Rhineland-Palatinate, Hesse, Saarland, Baden-Württemberg

Central user administration
User group and role administration
Assignment of permissions in compliance with data protection and audit requirements in the life and health insurance area
Administration of administrators
Creating, modifying and deleting user accounts for external support users
Assigning permissions for W2K, IDVS II / RACF, Oscare / SAP, Oracle applications, and other applications
Second-level support for access issues
Assigning roles and permissions (SAP)
Project support for Citrix systems
Evidian IBM Content Manager

Sep 2012 - Oct 2012

2 months

On-site

Onsite Service Administrator

IT Service Provider

Onsite service in a Windows 2008 domain
Terminal server configuration Xen App on Windows 7 and Mac
Troubleshooting in the LAN (Ethernet)
User help desk
Setting up network printers (on client and host)
Windows 7 and Mac installation of standard and custom software

Jun 2009 - Mar 2012

2 years 10 months

Director / Service Desk Lead

Aitus Active IT and Support LTD

Managing the SAPV service desk at Aitus
Industry: medical services
IT support and consulting for hardware and software including warranty processing
Training and supporting field staff based on Windows 7 and Server 2008
Remote maintenance, delivery of hardware and software, on-call duty

Jan 2009 - Mar 2009

3 months

IT Specialist (Classified)

Federal Ministry

Dec 2008 - Mar 2012

3 years 4 months

Trading Floor Support

Trading floor support on-call duty 16x5 and 2x7
Support on Windows 7, Sun Solaris and Server 2008

Jun 2008 - Nov 2008

6 months

Linux/DB Administrator, Consultant

T-Systems Enterprise Services GmbH

System administration of SLES 9 and 10 SP1
Database administration (Oracle, PostgreSQL, SQL)

Jul 2007 - Mar 2008

9 months

Lotus Domino LEI Administrator

Troubleshooting and rights assignment
Migration preparations and support for internal Domino server moves

Feb 2007 - Jul 2007

6 months

Lotus Domino Server Administration

Administration of various Domino cluster environments with approx. 5000 users
Access rights, database administration, troubleshooting
Server-side user help desk (Domino, Novell, XP)
Setup and rights assignment
Ticket and order management via Notes
Tools: Tivoli, Domino Administrator, Domino Designer, NetWare Administrator, Console One

Jun 2005 - Dec 2006

1 year 7 months

IT Administrator LAN Services

Energy Corporation

Primary responsibility for ensuring LAN services
Novell NDS with 17 servers and Domino environment with 10 servers
Administration of a Domino cluster environment at 8 locations with about 500 users
Planning and implementation of a new Domino infrastructure
Access rights, database administration, troubleshooting
Server-side user help desk (Domino 5.x/6.x, Novell 4.x/5.x/6.x, Windows 2000/2003)
Directory setup and permission assignment
Ticket and order management via Notes ComIT
Tools: ND Cerberus, Charon, Domino Administrator, ConsoleOne, NetWare Administrator

Apr 2005 - May 2005

2 months

Stuttgart, Germany

Lotus Domino Server Administration (vacation cover)

Administration of a Domino cluster environment with 100 application servers, 30,000 databases and 150,000 users
Operations management and reporting
Environment Setup & Installation (Basic, Middleware, Initial Configuration, Monitoring)
Environment Operation (Configuration, Change, System, Middleware Administration)
Performance & Availability Management, System Monitoring, Problem Management
On-call duty and 3rd level support (system, middleware, application)
Tools: Tivoli Storage Management, Domino Administrator

Jan 2004 - Dec 2004

1 year

Paderborn, Germany

Lotus Domino Server Administration / DFS Administration

Administration of a Domino cluster environment and two Domino domains at 2 locations with 5 mail servers, 7 application servers and about 2,500 users
Access rights, database administration, troubleshooting
Server-side user help desk (Domino, Novell, W2K, NT)
DFS directory setup and permission assignment
Ticket and order management via Remedy
Tools: Tivoli, Domino Administrator, Design, NetWare Administrator

Sep 2003 - Dec 2003

4 months

Paderborn, Germany

IT Administrator LAN Basic Services

LAN basic services: Novell NT 4.0, W2K and Notes migration
Server-side user help desk (Domino, Novell, W2K, NT)
Setting up network printers (on client and host) including troubleshooting
Migration of 370 users from Exchange to Notes
Administration of 2 Notes domains with a total of 1,800 users
Access rights, database administration, troubleshooting
Tools: Remcon, Daem-Ware, VNC, NetWare Administrator, Net Installer, Remedy

Aug 2003 - Sep 2003

2 months

On-site

Onsite Service Administrator

Bank

Onsite service in a Windows NT domain
Troubleshooting in the LAN (Ethernet)
User Help Desk
Setting up network printers (on client and host)
Mapping network drives, image installations
Hardware assembly, troubleshooting
Installation of standard and custom software

Mar 2003 - May 2003

3 months

IT Support / Migration Specialist

Steel Corporation

Support and migration of NT 4.0 servers and clients to Windows 2000 and XP
Migration from Token Ring to Ethernet, documentation
Installation of standard and custom software (SAP R/3, Office XP, C3 Fax, IBM 3270, Staffware, Cryptocard, Virtual CD, McAfee)
Troubleshooting in LAN (Ethernet), mapping network drives, image installations
Assembly, hardware troubleshooting
Setting up backups, optimizing client computers, integrating clients and notebooks into the network

Feb 2003 - Mar 2003

2 months

Migration Project Manager

IT Service Provider

Project management of migrating NT 4.0 servers and 60 clients to Windows 2000 and XP
Creating image installations, documentation
Image installations, setting up shares, mapping network drives
Setting up network printers (on client and host) including troubleshooting
Installation of standard and custom software (SAP R/3, Office XP, Norton, McAfee)
Joining clients to the domain
User training and administrator training

May 2002 - Oct 2002

6 months

IT System Administrator

Competence Center

Building a heterogeneous network environment with Windows 2000 and Suse Linux 8.0
Planning the network infrastructure, installing and configuring a Windows 2000 server as a domain controller
Setting up a Samba file server and a mail server with Sendmail on Linux
Configuring a Linux server as a router, DHCP and DNS server
Setup and configuration of Windows 2000 Advanced Server / Lotus Domino Server 5
Novell NetWare 5.1 installation, configuration, user and system administration, Z.E.N.works

Aug 2000 - Apr 2002

1 year 9 months

2nd Level Support

IT Service Provider

2nd level support in various Windows NT/2000 networks
Troubleshooting in LAN (Ethernet), user help desk, call handling
Setting up network printers (on client and host) including troubleshooting
Mapping network drives, image installations, assembly, hardware troubleshooting
Installation of standard and custom software, client optimization

Jan 2000 - Dec 2002

3 years

Managing Director

NLL IT Service GmbH

Nov 1999 - Jul 2001

1 year 9 months

PC Technician, Head of Technical Field Service

IT service provider

Scheduling of 8 internal and up to 15 external technicians
User and technician help desk, call handling, 2nd level support (Windows 98, NT 4)
Experience repairing about 1000 PCs (Fujitsu, Siemens, Medion, IBM, IPC, etc.)
Image installations, assembly, hardware troubleshooting, software installation
Optimizing client computers and connecting them to the internet

Jan 1998 - Dec 2000

3 years

Rollout, Migration, Inventory

Cologne, Germany

Rollout Team Leader

Ford

Rollout team of 5 people
Rolled out 132 Windows 7 PC workstations and laptops in 4 days
Setting up network printers (on client and host)
Installing standard and custom software at 8 locations

Industry Experience

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

Experienced in Information Technology, Insurance, Banking and Finance, Healthcare, Transportation, and Energy.

Information Technology

Insurance

Banking and Finance

Healthcare

Transportation

Energy

Business Area Experience

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

Experienced in Information Technology, Operations, Customer Service, Audit, Project Management, and Strategy.

Information Technology

Operations

Customer Service

Audit

Project Management

Strategy

Skills

Operating Systems: Ms-Dos, Win Xp/Vista/Win7/Win8/Win8.1
Servers: 2000/2003/2008/2011
Novell, Linux Desktop: Suse, Ubuntu, Redhat
Application Software: Ms Outlook 97, Xp, 2000/2003, Exchange 2000/2003
Ms Office 97, Xp, 2000/2003/2010/2013, Openoffice
Lotus Notes R4x, R5x, R6x, R7x, R8
Various Antivirus Software
Pc Anywhere
Activesync
Networks, Protocols, Topologies: Tcp/Ip, Netbios, Ipx/Spx, Arcnet, Ethernet, Wlan
Hardware: Pc Systems (Ibm, Dell, Hp), Notebooks (Ibm, Hp), Servers (Ibm, Hp)
Expert For Data Protection
Expert For Information Technology
Management
Consulting
Coaching / Training On Topics: Bait, Kait, Vait, Dora, Iso27001/2
Project Management / Organization / Coordination
Administration / Support
For Lotus Notes And Domino, Windows, Novell, Linux, Ms Office, Open Office

Languages

German

Native

Education

Vocational training in a trade · Baker

Certifications & licenses

(CLS) IBM Certified Associate System Administrator Lotus Notes and Domino 7

CLS

(CNA) Certified Novell System Administrator 6.5

CNA

(CNE) Certified Novell System Engineer 6.5

CNE

(IPC) MX Level 1

IPC

(ISACA) Cyber Security Practitioner (CSP)

ISACA

ITIL

(MCP) Microsoft® Windows 2000 Professional

MCP

(MCP) Microsoft® Windows 2000 Server Certified Professional

MCP

(MCSA) Microsoft® Windows® 2000 Certified System Administrator

MCSA

(MCSE) Microsoft® Windows® 2000 Certified System Engineer

MCSE

TÜV

(TÜV) ISMS Auditor/Lead Auditor according to ISO/IEC 27001:2022 (IRCA)

TÜV

AWS Technical Professional Online

Security clearance Ü2 according to §9 Security Clearance Act for SECRET and VS authorization

Statistics

Experience

Total positions 33

Experience in Information Technology 14.5 y

Avg length 1 y 1 m

Longest experience 4 y 9 m

Global Experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Consultant, IT Consultant, Managing Director

Main industries Information Technology, Insurance, Banking and Finance

Main business areas Information Technology, Operations, Customer Service

Qualifications

Certifications earned 16

Profile

Created

February 2024

Last Update

February 2025

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Frequently asked questions

Have questions? Find more information here.

Heinz-Dieter is based in Düsseldorf, Germany.

Heinz-Dieter speaks the following languages: German (Native).

Heinz-Dieter has at least 25 years of experience. During this time, Heinz-Dieter has worked in at least 26 different roles and for 21 different companies. The average length of individual experience is 1 year and 9 months. Note that Heinz-Dieter may not have shared all experience and actually has more experience.

Based on recent experience, Heinz-Dieter would be well-suited for roles such as: Consultant, IT Consultant, Managing Director.

Heinz-Dieter's most recent position is Consultant at CH Crypto Group.

In recent years, Heinz-Dieter has worked for CH Crypto Group, CH-Konzern, Aitus UG, Finanzgruppe und KVG im Großen Schweitzer Versicherung Konzern, and IT Service Provider.

Heinz-Dieter is most experienced in industries like Information Technology, Insurance, and Banking and Finance. Heinz-Dieter also has some experience in Healthcare, Transportation, and Energy.

Heinz-Dieter is most experienced in business areas like Information Technology, Operations, and Customer Service. Heinz-Dieter also has some experience in Audit, Project Management, and Strategy.

Heinz-Dieter has recently worked in industries like Information Technology, Insurance, and Banking and Finance.

Heinz-Dieter has recently worked in business areas like Information Technology, Audit, and Operations.

Heinz-Dieter attended education in Baker.

Heinz-Dieter has 16 certificates. Among them, these include: (CLS) IBM Certified Associate System Administrator Lotus Notes and Domino 7, (CNA) Certified Novell System Administrator 6.5, and (CNE) Certified Novell System Engineer 6.5.

Heinz-Dieter is immediately available for suitable projects.

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

To hire Heinz-Dieter, click the Meet button on the profile to request a meeting and discuss your project needs.

Salary / Daily Rate Distribution

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<€720 €800-880 €960-1040 €1040-1120 €1120+

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Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

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Daily rate avg. 975 €

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Median rate 1000 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.