Ralf Lembke - Chief Information Security Officer

Q: Where is Ralf based?

Ralf is based in Neumünster, Germany .

Q: What languages does Ralf speak?

Ralf speaks the following languages: German (Native), English (Advanced) .

Q: How many years of experience does Ralf have?

Ralf has at least 47 years of experience. During this time, Ralf has worked in at least 10 different roles and for 10 different companies . The average length of individual experience is 5 years and 8 months . Note that Ralf may not have shared all experience and actually has more experience.

Q: What is Ralf's latest experience?

Ralf's most recent position is Chief Information Security Officer at Stadtwerke Krefeld Holding AG .

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

In recent years, Ralf has worked for Stadtwerke Krefeld Holding AG and Versatus GmbH .

Q: Which industries is Ralf most experienced in?

Ralf is most experienced in industries like Manufacturing , Aerospace and Defense , and Professional Services . Ralf also has some experience in Utilities , Transportation , and Government and Administration .

Q: Which business areas is Ralf most experienced in?

Ralf is most experienced in business areas like Quality Assurance , Logistics , and Operations . Ralf also has some experience in Production , Sales , and Information Technology .

Q: Which industries has Ralf worked in recently?

Ralf has recently worked in industries like Professional Services and Utilities .

Q: Which business areas has Ralf worked in recently?

Ralf has recently worked in business areas like Information Technology , Quality Assurance , and Sustainability Management .

Recommended expert

Neumünster, Germany

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Experience

Feb 2023 - Dec 2023

11 months

Chief Information Security Officer

Stadtwerke Krefeld Holding AG

Building an information security management system for the entire group
Supporting 2 KRITIS subsidiaries

Jan 2019 - Present

7 years 8 months

Founder and Managing Director

Versatus GmbH

Building Versatus® GmbH as a nationwide consulting firm in the areas of quality management, environmental management, information security, and data protection

Dec 2018 - Jun 2019

7 months

Information Security Officer (ISO) and designated person/contact point for the BSI

Major energy supplier from northern Germany in a Hanseatic city

Preparing the company for the ISO 27001/ISO 27019 recertification, KRITIS, by TÜV

May 2017 - Oct 2017

6 months

Interim ISMS implementation (ISMS, ISO 27001, ISO 27002, ISO 27005, ISO 27019, IT Security Act, KRITIS)

Major German/Dutch power supplier in Bavaria

Introduction of ISMS according to various standards in Bayreuth and Arnhem (NL)

Nov 2016 - May 2017

7 months

Consultant Security & Risk Management

Bundesdruckerei Berlin

Consulting in Security & Risk Management, Access Control Systems, ISO 27001, ISO 27002, ISO 27005, IMS, EU GDPR

Apr 2014 - Aug 2015

1 year 5 months

Project Manager / Security Manager

VG Cargo GmbH

Introduction of AEO-F and TAPA TACSS
Introduction of ISO 28000 and support through to the audit by the certification company
Security consulting for CCTV, access control and time tracking systems, IT security, BSI basic protection, ISO 27001, fire protection, evacuation
Conducting training sessions

Jan 2010 - Dec 2018

9 years

Founder

Lembke Consulting

Building up Lembke Consulting as a packaging supplier for industry in Germany

Jan 1987 - Dec 2010

24 years

Production Manager, Operations Manager, Quality Management Manager, Logistics Manager, Sales Manager

Several plastics-processing packaging companies

Companies including Kautex Textron, LINPAC, Promens, Rosti
Blow molding production, injection molding and stretch blow molding
Development of packaging solutions in plastic and corrugated cardboard
Printing and labeling of plastic containers
Machine maintenance, upkeep, planning of new cooling systems and warehouses (30,000 m²)

Jan 1980 - Dec 1987

8 years

G2 Military Security

Bundeswehr Divisions Staff 6th Panzergrenadier Division

Jan 1980 - Dec 1987

8 years

Shipping and Packaging Employee

Sauer Getriebe (today Danfoss Neumünster)

Shipping of engines and pumps (gearboxes)

Industry Experience

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

Experienced in Manufacturing, Aerospace and Defense, Professional Services, Utilities, Transportation, and Energy.

Manufacturing

Aerospace and Defense

Professional Services

Utilities

Transportation

Energy

Business Area Experience

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

Experienced in Quality Assurance, Logistics, Operations, Production, Sales, and Information Technology.

Quality Assurance

Logistics

Operations

Production

Sales

Information Technology

Skills

Ms Office (Excel, Word, Outlook, Powerpoint, Project, Access, Visio)
Lotus Notes
Mind Map
Jira
Confluence (Strong Experience)
Training As A Programmer (6 Programming Languages)
Networking / Network Experience
Systems House Management
Experience With Ms Windows From 3.11 Wfw To 10.1

Languages

German

Native

English

Advanced

Education

Training as a programmer · Programming

Certifications & licenses

Training qualification

AEVO

IRCA ISO 14001 Lead Auditor

IRCA ISO 20000 Lead Auditor

IRCA ISO 22301 Lead Auditor

IRCA ISO 27001 Information Security Management Auditor

ISO 28000 Security System Management Auditor

AI ISO 42001 Certification Auditor

SA 8000 Auditor

TISAX Foundation

Certified Supervisory Board Member

Supervisory Board Seminar Series Schloss Montabaur

Certification Auditor ISO 27001, ISO 9001, ISO 22301, ISO 27019, SA8000, CoC

Statistics

Experience

Total positions 10

Experience in Manufacturing 39 y

Avg length 6 y

Longest experience 23 y 11 m

Expertise

Recent roles Chief Information Security Officer, Founder and Managing Director, Information Security Officer (ISO) and designated person/contact point for the BSI

Main industries Manufacturing, Aerospace and Defense, Professional Services

Main business areas Quality Assurance, Logistics, Operations

Qualifications

Certifications earned 13

Profile

Created

July 2025

Last Update

July 2026

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Frequently asked questions

Have questions? Find more information here.

Ralf is based in Neumünster, Germany.

Ralf speaks the following languages: German (Native), English (Advanced).

Ralf has at least 47 years of experience. During this time, Ralf has worked in at least 10 different roles and for 10 different companies. The average length of individual experience is 5 years and 8 months. Note that Ralf may not have shared all experience and actually has more experience.

Based on recent experience, Ralf would be well-suited for roles such as: Chief Information Security Officer, Founder and Managing Director, Information Security Officer (ISO) and designated person/contact point for the BSI.

Ralf's most recent position is Chief Information Security Officer at Stadtwerke Krefeld Holding AG.

In recent years, Ralf has worked for Stadtwerke Krefeld Holding AG and Versatus GmbH.

Ralf is most experienced in industries like Manufacturing, Aerospace and Defense, and Professional Services. Ralf also has some experience in Utilities, Transportation, and Government and Administration.

Ralf is most experienced in business areas like Quality Assurance, Logistics, and Operations. Ralf also has some experience in Production, Sales, and Information Technology.

Ralf has recently worked in industries like Professional Services and Utilities.

Ralf has recently worked in business areas like Information Technology, Quality Assurance, and Sustainability Management.

Ralf attended education in Programming.

Ralf has 13 certificates. Among them, these include: Training qualification, IRCA ISO 14001 Lead Auditor, and IRCA ISO 20000 Lead Auditor.

Ralf is immediately available full-time for suitable projects.

Ralf'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 Ralf, click the Meet button on the profile to request a meeting and discuss your project needs.

Salary / Daily Rate Distribution

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<€640 €640-800 €800-960 €960-1120 €1120-1280 €1280+

The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.

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

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000

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Daily rate avg. 918 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

1000

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Median rate 880 €

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.