Ralf Lembke-Chief Information Security Officer
Check rate
Experience
Chief Information Security Officer
Stadtwerke Krefeld Holding AG
- Building an information security management system for the entire group
- Supporting 2 KRITIS subsidiaries
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
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
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)
Consultant Security & Risk Management
Bundesdruckerei Berlin
- Consulting in Security & Risk Management, Access Control Systems, ISO 27001, ISO 27002, ISO 27005, IMS, EU GDPR
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
Founder
Lembke Consulting
- Building up Lembke Consulting as a packaging supplier for industry in Germany
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)
G2 Military Security
Bundeswehr Divisions Staff 6th Panzergrenadier Division
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.
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.
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
Education
Training as a programmer · Programming
Certifications & licenses
IRCA ISO 14001 Lead Auditor
IRCA ISO 20000 Lead Auditor
ISO 28000 Security System Management Auditor
AI ISO 42001 Certification Auditor
SA 8000 Auditor
TISAX Foundation
Supervisory Board Seminar Series Schloss Montabaur
Certification Auditor ISO 27001, ISO 9001, ISO 22301, ISO 27019, SA8000, CoC
Statistics
Experience
Expertise
Qualifications
Profile
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.
The availability of Ralf needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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.
Calculated based on our freelancers’ daily rates as of 27 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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