Florian Krebs - Self-employed IT and Security Consultant

Q: Where is Florian based?

Florian is based in Olching, Germany .

Q: What languages does Florian speak?

Florian speaks the following languages: German (Advanced), English (Advanced), Spanish (Elementary) .

Q: How many years of experience does Florian have?

Florian has at least 14 years of experience. During this time, Florian has worked in at least 13 different roles and for 12 different companies . The average length of individual experience is 1 year . Note that Florian may not have shared all experience and actually has more experience.

Q: What is Florian's latest experience?

Florian's most recent position is LAN Planner at Global Network AG .

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

In recent years, Florian has worked for Global Network AG , PDLZ , top itservices AG , and Solcom .

Q: Which industries is Florian most experienced in?

Florian is most experienced in industries like Information Technology , Government and Administration , and Automotive . Florian also has some experience in Energy , Aerospace and Defense , and Telecommunication .

Q: Which business areas is Florian most experienced in?

Florian is most experienced in business areas like Information Technology , Customer Service , and Project Management . Florian also has some experience in Sales , Operations , and Marketing .

Q: Which industries has Florian worked in recently?

Florian has recently worked in industries like Information Technology and Government and Administration .

Q: Which business areas has Florian worked in recently?

Florian has recently worked in business areas like Information Technology and Project Management .

Recommended expert

Olching, Germany

Check rate

Experience

Jul 2024 - Jun 2025

1 year

LAN Planner

Global Network AG

As-is assessment of the current network infrastructure and its documentation, including on-site inspections
Independent planning of new distribution and main distribution rooms in the individual district offices (components used, rack layout, connectivity), considering the BSI IT-Grundschutz and InfoSic requirements
Planning of new copper and fiber optic cabling, including patch panels
Coordination with building services engineering (TGA) to ensure compliance with relevant on-site requirements
Development of detailed execution plans and high-level concepts for the rollout of the new infrastructure
Additional support after the components go live (hypercare phase)
Regular communication with project management and client stakeholders

Oct 2023 - Dec 2023

3 months

Technical Consultant

PDLZ

Support in designing a new data center
Review and revision of documents such as network diagrams and segmentation concepts
Checking documents for compliance with BSI IT-Grundschutz
Consulting on network layout and component placement (firewall systems, core and distribution switches)
Advising on zoning concepts and network security (defense-in-depth and zero trust architecture)
Development of a new VLAN concept, including an IPv4 address scheme
Development of a new naming scheme for network components
Creation of an overview of port assignments for the network infrastructure
Regular communication with project management and client stakeholders
Coordination of external service providers

Jan 2023 - Present

3 years 6 months

Remote

Technical Project Manager/Network Specialist

Global Network AG

Technical contact for operational consolidation (BKB) of federal agencies (connecting agencies to the federal private cloud solution)
Analysis and advice on existing user connections in agencies to avoid bandwidth bottlenecks
Technical contact for the IP address harmonization subproject
Development of technical solutions and target designs for harmonizing and segmenting agency networks, including high-security environments
Troubleshooting connectivity issues across Layers 2–4
Analysis of individual applications for service consolidation (DKB)
Creation of migration concepts
Advancement and optimization of IT processes within the project
Definition of required milestones to track project progress
Project planning and task tracking using Jira
Creation and maintenance of documentation in Confluence
Planning, organizing, and leading meetings, workshops, and kick-off sessions
Close collaboration with project managers, infrastructure consultants, and network officers of the various agencies
Stakeholder management
Preparation of technical documents, manuals, survey forms, and recommendations, as well as interim and final reports
Preparation of results and presentations at decision-making level

Jan 2022 - Dec 2022

1 year

Senior Network Security Consultant

top itservices AG

Development of a network segmentation concept in accordance with BSI IT-Grundschutz and ISO 27001 requirements
Assessment and adjustment of existing structure and protection requirements analyses
Assessment and adjustment of existing security concepts (access control and encryption)
Risk analysis of network components (access layer) and development of appropriate protective measures such as NAC (security controls)
Creation of documentation for the network infrastructure (L2/L3)
Design and implementation of a new SNMPv3 concept
Collaboration with the SOC to improve the existing ISMS based on ISO 27001
Point of contact for the CISO and the SOC team on IT security matters
Presentation of developed concepts at the management level

Jul 2020 - Dec 2021

1 year 6 months

Network and Security Engineer/Project Manager

Solcom

Technical, conceptual, and planning support for building a new data center
Development, creation, and assignment of work packages in Jira
Creation of schedules considering various dependencies and goals
Coordination of external service providers and stakeholder management
Ensuring the achievement of milestones
Development and implementation of a multi-tier firewall zoning concept
Operation and support of the network infrastructure (Layers 2–4) with HP 10500, 5900, 5500, Cisco Catalyst 9300, and Kemp LoadMaster
Operation and maintenance of the firewall infrastructure (Checkpoint R80.30; Fortigate 3960, 600, 200; FG Manager; FG Analyzer; Juniper)
Planning and execution of changes and new installations (change management)
Handling tickets during incidents (incident management)
Troubleshooting and network analysis in case of errors (problem management)
Creation and updating of documentation

Mar 2019 - Feb 2020

1 year

3rd Level Network Engineer

Unisys

Operation and support of network infrastructure (Layer 2–4) on site at the client using Cisco Catalyst 2960-X, 3650, 3750, 3850, 4500, Nexus 3K, WLC 3504/2504 and AP 1700/1800
Operation and maintenance of firewall clusters (Cisco ASA 5510)
Planning and implementation of changes and new installations (Change Management)
Handling tickets in case of incidents (Incident Management)
Troubleshooting and network analysis in case of errors (Problem Management)
Optimization of the network infrastructure through concept development and implementation
Creation and updating of documentation
Point of contact for 2nd level support for all technical questions
Training of 2nd level support
Management of external service providers
Release management for network components including risk assessment

Jul 2018 - Dec 2018

6 months

Senior Network Administrator

MSH (Medien System Haus)

Operation and support of network infrastructure (Layer 2–4) on site at the client using Cisco Catalyst 2960-X, 3750, 6500, Nexus 5K and 2K
Operation and maintenance of FW/VPN clusters (Cisco ASA 5525-X, 5545-X, Pulse)
Configuration and maintenance of various VPN topologies and firewall rule sets
Planning and implementation of changes and new installations (Change Management)
Handling tickets in case of incidents (Incident Management)
Troubleshooting and network analysis in case of errors (Problem Management)
Creation and updating of documentation

Sep 2017 - Mar 2018

7 months

Network Architect

Altran

Operation and support of network infrastructure (Layer 2–4) on site at Airbus using Cisco Catalyst 2960, 4500, HP 5400zl, 2910, Sophos SG230, Astaro UTM220 and FortiGate 300
As-is analysis of all research networks
Creation of documentation for L2/L3
Planning new research networks in coordination with specialist departments
Creation of high- and low-level designs for new network areas
Technical support during data center relocation

Jul 2016 - Feb 2017

8 months

Network and Security Support

Schweickert Netzwerktechnik GmbH

Operation and support of network infrastructure on site at SAP using Cisco Nexus 2K, 3K, 6K, 7K, 9K and Cisco Catalyst 4500, 6500 as well as HP 5400zl and 4200vl
Planning and implementation of changes and new installations (Change Management)
Optimization of the network infrastructure
Reviewing, creating and modifying access control lists
Handling tickets in case of incidents (Incident Management)
Network analysis (Problem Management)
Support of field service
Creation and updating of documentation
Taking on early and late shifts

Oct 2015 - Feb 2016

5 months

Cisco 2nd Level Support

Pan Dacom Networking AG

Operation and support of network infrastructure on site at Audi using Cisco Nexus 2K, 3K, 7K as well as Cisco Catalyst 4500 and 3750X and HP 5400zl
Planning and implementation of changes and new installations (Change Management)
Installation and acceptance of network equipment
Handling tickets in case of incidents (Incident Management)
Network analysis
Support of field service
Creation and updating of documentation

Oct 2013 - Oct 2014

1 year 1 month

Line Manager

Atlantik Systeme GmbH

Implement revenue and profit targets for the lines according to the annual plan
Define and implement required marketing activities
Negotiate with manufacturers and procurement according to guidelines
Negotiate target agreements and marketing budgets with the manufacturer to maximize rebate and co-op payments

Sep 2011 - Nov 2014

3 years 3 months

Network Technician

Atlantik Systeme GmbH

Pre- and post-sales support for all vendor lines (Cisco, HP, Mellanox, Raritan, Digi, Lantronix)
Technical contact for projects in the automotive and energy sectors regarding mobile network connectivity
Technical point of contact for the sales team
Configure routers, switches, firewall systems, and KVM solutions
Configure VLANs, trunking, DHCP, NAT, STP, EtherChannel, ACLs, WLAN solutions, static and dynamic routing

May 2008 - Sep 2010

2 years 5 months

Technical Consultant

Arrow ECS

Telephone and email support for L2/L3 network components, IPSec and SSL VPN firewalls, UTM and STM security appliances, and WLAN solutions
Diagnosis, troubleshooting, and optimization of customer networks
Maintain the Known Error Database (KEDB)
Develop complex network topologies

Jun 2003 - Sep 2003

4 months

IT Systems Salesperson

bzm edv-systeme GmbH

Telephone hardware and software support
On-site technical support
Installation and maintenance of computer and network systems (Windows 98, Windows 2000, Windows XP, Linux)
Customer support
Training customers and apprentices

Industry Experience

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

Experienced in Information Technology, Government and Administration, Automotive, Energy, Aerospace and Defense, and Telecommunication.

Information Technology

Government and Administration

Automotive

Energy

Aerospace and Defense

Telecommunication

Business Area Experience

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

Experienced in Information Technology, Customer Service, Project Management, Sales, Operations, and Marketing.

Information Technology

Customer Service

Project Management

Sales

Operations

Marketing

Summary

I have built my career by designing and optimizing network infrastructures across multiple sectors. I specialize in planning new network layouts, upgrading security concepts, and ensuring compliance with IT security standards. My work has ranged from ground-level documentation and site surveys to high-level consulting on network segmentation and cloud connectivity.

I enjoy turning challenging network conditions into reliable, secure solutions. I focus on consistency and proactive communication, ensuring projects run smoothly from planning to roll-out and post-implementation support. My approach is hands-on and detail-oriented, always aiming to enhance operational efficiency and security.

Skills

Switching/ Routing/ Wlan/ It Security/ It Operations/ Network Design And Concept/ Network Analysis/ Firewall Systems/ Cloud Infrastructures/ Process, Service, Project Management/ Isms (Bsi It-Grundschutz, Iso27001)/ Risk Analysis/ Risk Management/ Nis2/ Kritis
Cisco/ Fortinet/ Checkpoint/ Juniper/ Hp/ Dell/ Kemp/ Arista/ Sophos/ Astaro/ Lantronix/ Netgear/ Digi/ Infoblox/ Bluecat/ Macmon/ Pulse/ Fluke/ Splunk/ Icinga/ Nagios/ Mrtg/ Wireshark/ Nessus/ Ms Visio/ Fnt Command/ Ca Spectrum/ Jira/ Confluence/ Itdirect/ Workcenter

Languages

German

Advanced

English

Advanced

Spanish

Elementary

Education

Oct 2006 - Mar 2008

FH Augsburg

Business Informatics · Augsburg, Germany

Sep 2004 - Jul 2005

Berufsoberschule FFB

Technical A-Levels · Fürstenfeldbruck, Germany

Sep 2000 - Jun 2003

bzm edv-systeme gmbh

Apprenticeship as IT Systems Management Assistant · IT Systems Management

...and 1 more

Certifications & licenses

ICO ISMS Auditor according to ISO/IEC 27001:2013 AMD 1

ICO

ICO ISMS Security Officer according to ISO/IEC 27001:2013 AMD 1

ICO

BSI IT-Grundschutz Practitioner

BSI

CompTIA Security+

CompTIA

ICO ISMS Auditor according to ISO/IEC 27001:2013

ICO

ICO ISMS ISO27001:2013 Foundation Certification

ICO

ICO ISMS Security Officer according to ISO/IEC 27001:2013

ICO

ISACA CISM – Certified Information Security Manager

ISACA

ITILv3 Foundation Certification

Microsoft Certified: Azure Fundamentals

Microsoft

PRINCE2 Foundation Certification

Statistics

Experience

Total positions 14

Experience in Information Technology 14 y

Avg length 1 y 2 m

Longest experience 3 y 5 m

Expertise

Recent roles LAN Planner, Technical Consultant, Technical Project Manager/Network Specialist

Main industries Information Technology, Government and Administration, Automotive

Main business areas Information Technology, Customer Service, Project Management

Qualifications

Certifications earned 11

Profile

Created

April 2025

Last Update

May 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Florian based?

Florian is based in Olching, Germany.

What languages does Florian speak?

Florian speaks the following languages: German (Advanced), English (Advanced), Spanish (Elementary).

How many years of experience does Florian have?

Florian has at least 14 years of experience. During this time, Florian has worked in at least 13 different roles and for 12 different companies. The average length of individual experience is 1 year. Note that Florian may not have shared all experience and actually has more experience.

What roles would Florian be best suited for?

Based on recent experience, Florian would be well-suited for roles such as: LAN Planner, Technical Consultant, Technical Project Manager/Network Specialist.

What is Florian's latest experience?

Florian's most recent position is LAN Planner at Global Network AG.

What companies has Florian worked for in recent years?

In recent years, Florian has worked for Global Network AG, PDLZ, top itservices AG, and Solcom.

Which industries is Florian most experienced in?

Florian is most experienced in industries like Information Technology, Government and Administration, and Automotive. Florian also has some experience in Energy, Aerospace and Defense, and Telecommunication.

Which business areas is Florian most experienced in?

Florian is most experienced in business areas like Information Technology, Customer Service, and Project Management. Florian also has some experience in Sales, Operations, and Marketing.

Which industries has Florian worked in recently?

Florian has recently worked in industries like Information Technology and Government and Administration.

Which business areas has Florian worked in recently?

Florian has recently worked in business areas like Information Technology and Project Management.

What is Florian's education?

Florian attended FH Augsburg for Business Informatics.

Does Florian have any certificates?

Florian has 11 certificates. Among them, these include: ICO ISMS Auditor according to ISO/IEC 27001:2013 AMD 1, ICO ISMS Security Officer according to ISO/IEC 27001:2013 AMD 1, and BSI IT-Grundschutz Practitioner.

What is the availability of Florian?

Florian will be available full-time from October 2026.

What is the rate of Florian?

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