Matthias Schmälzle - Subproject Manager / Head of Monitoring

Q: Where is Matthias based?

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

Q: What languages does Matthias speak?

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

Q: How many years of experience does Matthias have?

Matthias has at least 6 years of experience. During this time, Matthias has worked in at least 10 different roles and for 13 different companies . The average length of individual experience is 5 months . Note that Matthias may not have shared all experience and actually has more experience.

Q: What is Matthias's latest experience?

Matthias's most recent position is Subproject Manager / Head of Monitoring at IT service provider (Berlin/Kolbermoor) .

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

In recent years, Matthias has worked for IT service provider (Berlin/Kolbermoor) , Telecommunications service provider (Bonn/Hannover/Nuremberg/Prague) , Chemical company (Staufen) , Security manufacturer (Achern) , and Steel manufacturer (Salzgitter) .

Q: Which industries is Matthias most experienced in?

Matthias is most experienced in industries like Information Technology , Manufacturing , and Agriculture . Matthias also has some experience in Telecommunication , Retail , and Chemical .

Q: Which business areas is Matthias most experienced in?

Matthias is most experienced in business areas like Information Technology , Operations , and Project Management . Matthias also has some experience in Business Intelligence .

Q: Which industries has Matthias worked in recently?

Matthias has recently worked in industries like Information Technology , Manufacturing , and Chemical .

Q: Which business areas has Matthias worked in recently?

Matthias has recently worked in business areas like Information Technology , Operations , and Project Management .

Recommended expert

Achern, Germany

Experience

Jun 2025 - Dec 2025

7 months

Subproject Manager / Head of Monitoring

IT service provider (Berlin/Kolbermoor)

Subproject Manager / Head of Monitoring for facility management and handling operational project parts as well as coordinating operations
CheckMK consulting: central monitoring infrastructure with CheckMK master and distributed CheckMK satellites
Implementation of advanced monitoring approaches, integration of new plugins and customization of the CheckMK agent
Graphic representation of performance metrics with InfluxDB and Grafana, creation of NagVis/Grafana templates and dashboards
Monitoring of Linux/UNIX/Windows systems and active components using CheckMK agents/MRPE as well as hardware monitoring via SNMP
Development of monitoring plugins based on Bash scripting
Inventory and cross-disciplinary analysis for application-specific monitoring
Concept design, testing and documentation for integrating CheckMK status messages and performance data into a higher-level umbrella system (Data Leak)
Technical and conceptual point of contact

Jun 2025 - Sep 2025

4 months

Consultant for Icinga2 and Grafana

Telecommunications service provider (Bonn/Hannover/Nuremberg/Prague)

Consulting on an existing infrastructure and connecting DataLeak third-party systems
Building a central monitoring infrastructure with Icinga2 master and distributed satellites
Advanced monitoring integration, plugin integration and customization of the Icinga2 agent
Graphic performance analysis with Graphite, Elasticsearch and Grafana; creating Icingaweb2/Grafana templates and dashboards
Monitoring of Linux/UNIX systems and active components using NRPE, hardware monitoring via SNMP
Development of Nagios/Icinga2 plugins based on Bash scripting
Concept design, testing and documentation for integrating Icinga2 and Zabbix status messages into a higher-level umbrella system
Technical and conceptual point of contact

Jun 2023 - Dec 2023

7 months

Consultant for Grafana, InfluxDB and MySQL/MariaDB

Chemical company (Staufen)

Creating Grafana dashboards based on MySQL/MariaDB, InfluxDB, Monitos monitoring system and OTOBO ticket system
Performance analysis and extension of the Monitos monitoring system
Technical and conceptual point of contact

Nov 2022 - Sep 2023

11 months

Network technician

Security manufacturer (Achern)

Replaced HP ProCurve switches with Aruba switches including upgrades and flashing
Installed and configured the switches with VLAN, Spanning Tree, trunking, port security, etc.
Created documentation and reports
Integrated the switches into Nagios monitoring and adjusted hardware monitoring
Knowledge transfer, briefing, training and documentation
Technical and conceptual point of contact

Nov 2022 - Jan 2023

3 months

Consultant for Grafana and InfluxDB

Steel manufacturer (Salzgitter)

Setting up and hardening Linux systems for Grafana and InfluxDB
Installing and configuring Grafana and InfluxDB
Integrating and creating existing and new Grafana dashboards with addons/plugins, connecting InfluxDB v1 and v2
Knowledge transfer, briefing, training and documentation
Technical and conceptual point of contact

Aug 2021 - Aug 2022

1 year 1 month

Consultant Icinga2 and Grafana

OPITZ CONSULTING Deutschland GmbH (Gummersbach)

Consulting and building an Icinga2 and Grafana infrastructure with a central master and distributed satellites
Installing and configuring the Icinga Director frontend with CMDB integration (NetBox) and JSON import of host and device objects
Cross-functional inventory and analysis for application-specific monitoring
Using Icingaweb2 as a user frontend including notification integration and role separation
Advanced monitoring integration, plugin integration and customization of Icinga2 agents
Graphical performance analysis with InfluxDB and Grafana; creating templates and dashboards
Monitoring Windows/Linux/UNIX systems and hardware using NRPE, NSClient++, SNMP
Developing Nagios/Icinga2 plugins with Bash scripting
Automating and syncing between Icinga Director and NetBox, migrating legacy configurations
Workshops, presentations and documentation; moving configurations into production systems
Technical and conceptual point of contact

Jun 2020 - Mar 2021

10 months

Consultant for monitoring solutions

Data center operator

Analyzing and consulting on existing monitoring installations
High-level analysis, inventory and cross-functional analysis for application-specific monitoring
Developing a monitoring tool overview and a high-level concept with recommendations for central infrastructure
Developing concepts for failover protection of the monitoring infrastructure
Creating system manuals, overview diagrams and infrastructure diagrams with Microsoft Visio
Documenting existing and future monitoring infrastructure
Graphical performance analysis with Graphite/InfluxDB and Grafana
Building a monitoring test environment
Technical and conceptual point of contact

Oct 2019 - Apr 2020

7 months

Consultant Icinga2 and Grafana

Telecommunications service provider (Bonn/Hannover/Nuremberg/Prague)

Advising on an existing Icinga2 and Grafana infrastructure
Installing and configuring the Icinga Director frontend with JSON import of host objects
Cross-functional inventory and analysis for application-specific monitoring
Using Icingaweb2 as a user frontend with HTML email notifications and role separation
Advanced monitoring integration, plugin integration and customization of the Icinga2 agent
Graphical performance analysis with Graphite and Grafana; creating templates and dashboards
Monitoring Linux/UNIX systems using NRPE, hardware monitoring via SNMP
Developing Nagios/Icinga2 plugins with Bash scripting
Technical and conceptual point of contact

Aug 2019 - Sep 2019

2 months

Consultant Icinga2 and Grafana

IT service provider for an international industrial company (Freiburg im Breisgau)

Advising on an existing Icinga2 and Grafana infrastructure with a central master and satellites
Cross-functional inventory and analysis for application-specific monitoring
Using Icingaweb2 as a user frontend with role separation and notifications
Advanced monitoring integration, plugin integration and agent customization with certificates
Graphical performance analysis with InfluxDB and Grafana; creating templates
Monitoring Linux/UNIX and Windows systems using the Icinga2 agent, hardware monitoring via SNMP
Developing Nagios/Icinga2 plugins with Bash scripting
Technical and conceptual point of contact

Jul 2019 - Aug 2019

2 months

Consultant Icinga2

fliix (Gäufelden)

Consulting and building a central Icinga2 monitoring infrastructure with satellites
Updating the Icinga2 configuration generator based on an Excel sheet to define contacts, groups and hosts, including CSV import
Creating Graphite templates for Icingaweb2

Jul 2019 - Jul 2019

1 month

Consultant Neteye4 (Icinga2)

Energy supplier (Frankfurt am Main)

Set up a monitoring infrastructure with Neteye4 as a Pacemaker cluster and satellites
Cross-functional inventory and analysis for application-specific monitoring
Used Neteye4/Icingaweb2 as the user frontend with role separation
Advanced monitoring integration, plugin integration, and agent customization with certificates
LDAP authentication for Neteye4/Icingaweb2
Graphical performance analysis with InfluxDB and Grafana
Monitoring of Linux/UNIX and Windows systems using the Icinga2 agent, hardware monitoring via SNMP
Development of Nagios plugins with Bash scripting
Technical and conceptual point of contact

Oct 2018 - Nov 2018

2 months

Consultant ICINGA2

Voucher provider (Hamburg)

Set up and updated a central ICINGA2 monitoring infrastructure with a master and distributed systems
Cross-functional inventory and analysis for application-specific monitoring
Used Thruk as the user frontend with role separation
Advanced monitoring integration, plugin integration, and NSClient++ customization with NRPE3 certificates
LDAP authentication for Thruk and ICINGAweb2
Installed and configured Graphite for performance analysis
Monitoring of Linux/UNIX and Windows systems as well as hardware via SNMP
Development of Nagios plugins with Bash scripting and an Excel-based configuration generator
Technical and conceptual point of contact

Sep 2018 - Apr 2019

8 months

Consultant Icinga2

Drugstore group internal IT (Karlsruhe)

Maintaining and expanding an existing central Icinga2 monitoring infrastructure with test and production systems
Cross-functional inventory and analysis for application-specific monitoring
Provided service checks based on Puppet
Development and design of check plugins with Bash for enhanced monitoring
Expanded and configured the Icinga2 environment with Icingaweb2 Director
Created performance dashboards with Grafana and InfluxDB
Technical and conceptual point of contact

Feb 2018 - Jun 2019

1 year 5 months

Consultant Icinga2

Agricultural machinery manufacturer (Damme)

Built and developed a central Icinga2 monitoring infrastructure with test and production systems
Cross-functional inventory and analysis for application-specific monitoring
Integrated Graphite for performance data processing and Grafana for dashboards
Advanced monitoring integration and plugin integration
Expanded and configured the Icinga2 environment with Icingaweb2 Director
Development of monitoring plugins with Bash scripting (e.g., for Sophos firewalls)
Packaged NSClient++ for Windows server monitoring and developed an NRPEv3 installer for Debian/Ubuntu
Integrated an internal CA based on OpenSSL
Conducted monitoring workshops and prepared analyses and recommendations
Technical and conceptual point of contact

Industry Experience

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

Experienced in Information Technology, Manufacturing, Agriculture, Telecommunication, Chemical, and Retail.

Information Technology

Manufacturing

Agriculture

Telecommunication

Chemical

Retail

Business Area Experience

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

Experienced in Information Technology, Operations, Project Management, and Business Intelligence.

Information Technology

Operations

Project Management

Business Intelligence

Summary

I have extensive experience in building and managing advanced monitoring infrastructures, working with tools like CheckMK, Icinga2, Grafana, InfluxDB and Graphite. I set up centralized systems with distributed satellites and developed custom plugins with Bash scripting. My work spans various industries such as IT services, telecommunications, chemicals, security, steel manufacturing and energy, always acting as the technical and conceptual lead.

I focus on performance analysis, integration of monitoring tools and process optimization while ensuring seamless system operations. My technical skills, knowledge transfer and hands-on project management have consistently contributed to reliable and efficient infrastructures.

Skills

Administration And Maintenance Of Windows And Linux Networks And Server Systems
Monitoring With Nagios/icinga 1.x/icinga 2.x/naemon/centreon/checkmk And Addon Extension
Active Directory Administration And Integration
Planning, Concept Design And Deployment
Training Administrators And Users
Security Concepts
Security Implementation And Administration/maintenance
Backup Strategies
Firewall, Ids, Gateway And Proxy Integration
Centralized And Decentralized Communication Solutions
Dmz And Network Planning, Administration And Management
Compaq / Hp
Dell
Ibm
Cisco
Others, X86, X64
Microsoft Windows Nt 4.0/20xx Server
Microsoft Windows Client Os
Linux (Suse/debian/red Hat/centos)
Batch And Bash Scripting
Html
Perl
Access
Mysql
Ms Sql
Tcp/ip
Internet/intranet
Isdn Dsl/wlan
Cisco
Routing
Vpn/ipsec
System And Network Monitoring With Nagios / Icinga / Icinga2 / Grafana / Neteye4 / Centreon (Active, Passive, Snmp, Fault-tolerant Cluster Systems, Addon Integration, Customizing)
Microsoft Windows (Nt/20xx/various Client Systems)
Active Directory Administration
Windows 2003 Cluster (Active/passive)
Security Hardening And Gpo Management
Encrypting Network Communication Via Ipsec + Kerberos (Domain Isolation)
Dmz And Network Setup, Planning And Management (Concepts, Implementation, Administration And Operation)
Integrity Checks (Tripwire) On Windows/linux Systems
Backup With Bakbone Netvault 7.4.x
Ids/ips From Packetalarm
Switch Management Hp Procurve
Server Administration Hp Proliant Dl 360/380 Series
Web Server Apache2 (Https, Webdav)
Proxy Systems (Web And Ftp Proxy)
Firewall Systems (Commercial Or Iptables-based)
Cisco Pix 506e Administration
Linux (Various Distributions)
Groupware Servers (Egroupware, Opengroupware)
Anti-spam (Spamassassin)
Mail Servers (Postfix)
File Servers (Samba)
Central Communication Solutions
Backup (Open Source Solutions)
Vpn (Frees/wan, Strongs/wan, Openvpn)
Pcsi (Packetalarm Certified Security Engineer)
Nca (Netvault Certified Administrator)
Analytical Thinking Skills
Strategic And Structured Approach
Project Management
Planning And Concept Development
Instructor For Monitoring, Linux, Network Technology And It Security
Resilience / Flexibility
Industry / Services / E-commerce / Energy Companies
Security Technology (Fire And Intrusion)
Software Development

Languages

German

Native

English

Advanced

Education

IT systems electronics technician

Certifications & licenses

NCA (NetVault Certified Administrator)

PCSI (PacketAlarm Certified Security Engineer)

Statistics

Experience

Total positions 14

Experience in Information Technology 2.5 y

Avg length 6 m

Longest experience 1 y 4 m

Expertise

Recent roles Subproject Manager / Head of Monitoring, Consultant for Icinga2 and Grafana, Consultant for Grafana, InfluxDB and MySQL/MariaDB

Main industries Information Technology, Manufacturing, Agriculture

Main business areas Information Technology, Operations, Project Management

Qualifications

Certifications earned 2

Profile

Created

January 2026

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Matthias based?

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

What languages does Matthias speak?

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

How many years of experience does Matthias have?

Matthias has at least 6 years of experience. During this time, Matthias has worked in at least 10 different roles and for 13 different companies. The average length of individual experience is 5 months. Note that Matthias may not have shared all experience and actually has more experience.

What roles would Matthias be best suited for?

Based on recent experience, Matthias would be well-suited for roles such as: Subproject Manager / Head of Monitoring, Consultant for Icinga2 and Grafana, Consultant for Grafana, InfluxDB and MySQL/MariaDB.

What is Matthias's latest experience?

Matthias's most recent position is Subproject Manager / Head of Monitoring at IT service provider (Berlin/Kolbermoor).

What companies has Matthias worked for in recent years?

In recent years, Matthias has worked for IT service provider (Berlin/Kolbermoor), Telecommunications service provider (Bonn/Hannover/Nuremberg/Prague), Chemical company (Staufen), Security manufacturer (Achern), and Steel manufacturer (Salzgitter).

Which industries is Matthias most experienced in?

Matthias is most experienced in industries like Information Technology, Manufacturing, and Agriculture. Matthias also has some experience in Telecommunication, Retail, and Chemical.

Which business areas is Matthias most experienced in?

Matthias is most experienced in business areas like Information Technology, Operations, and Project Management. Matthias also has some experience in Business Intelligence.

Which industries has Matthias worked in recently?

Matthias has recently worked in industries like Information Technology, Manufacturing, and Chemical.

Which business areas has Matthias worked in recently?

Matthias has recently worked in business areas like Information Technology, Operations, and Project Management.

What is Matthias's education?

Matthias attended education in IT systems electronics technician.

Does Matthias have any certificates?

Matthias has 2 certificates. These include: NCA (NetVault Certified Administrator) and PCSI (PacketAlarm Certified Security Engineer).

What is the availability of Matthias?

Matthias is immediately available full-time for suitable projects.

What is the rate of Matthias?

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