Tobias Baumann-IT Executive · Infrastructure, IT Security & Digitalization
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Experience
Freelance IT Consultant
Freelance IT Consultant
Infrastructure, automation, IT security
- Operation and modernization of business-critical Linux infrastructure for a public-sector client: RHEL migrations, Ansible automation, container rollout (since October 2025)
- Project lead for server upgrade from RHEL 7/8 to RHEL 9 in the financial sector: project management, stakeholder communication (May 2024 – Feb. 2025)
- Project support for IT security requirements in the financial sector: gap analyses, solution design with business units (March – May 2025)
- Setup of an IdM solution (FreeIPA/RHEL IdM) for a utility company (AT), including consulting and training (Apr. – Nov. 2023)
- IT infrastructure consulting for a research team: Proxmox, SSO architecture, data sovereignty, and local AI (since Feb. 2026)
Head of Network
Ströer SE
- Functional and disciplinary responsibility for a 5-person team; resource and task planning
- Finance and investment planning for network infrastructure; coordination of external service providers
- Building a process and documentation structure based on ITIL
- Creation and implementation of IT security policies; lifecycle management of hardware and software
- Introduction of Infrastructure as Code with DevOps approaches; setup of the monitoring and alerting system (CheckMK, Grafana)
- Automation and optimization of the network infrastructure (RHEL, Aruba, Fortinet)
Team Lead Infrastructure
INFOnline GmbH
- Functional and disciplinary responsibility for a 6-person team; job interviews, resource planning
- Operations responsibility for two data centers and cloud infrastructure; development of a hybrid cloud
- Finance and investment planning for the infrastructure
- Infrastructure architecture for a measurement system; automation with Ansible and Terraform, CI/CD with GitLab
- Setup and ownership of monitoring (CheckMK/Nagios, Grafana, Prometheus); on-call duty
Network and Server Administrator
INFOnline GmbH
- Administration of Linux servers, network (Cisco), A10 load balancers, and databases (MariaDB, MySQL, Redis)
- Configuration management with Chef; CI/CD with GitLab; container deployments (Docker, Nomad/Consul); on-call duty
Incident Manager
Telekom Deutschland
- Incident coordination and root cause analysis for an IP TV server landscape in shift operation
- Setup and support of ITIL-based processes; automation of incident remediation (Bash)
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Banking and Finance, Information Technology, Government and Administration, Utilities, Telecommunication, and Media and Entertainment.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Operations, Project Management, Finance, and Human Resources.
Summary
IT executive with more than ten years of hands-on experience – from data center operations and direct team leadership to advising business units and decision-makers. I connect strategic topics like information security and compliance (NIS2, BSI IT Baseline Protection, KRITIS), automation and cloud with strong technical depth, as well as budget, process, and vendor responsibility. Author of a technical book on implementing NIS2.
Strength: translating between technology, business units, and management – and turning decisions into action.
Skills
Direct And Functional Leadership Of Infrastructure Teams (5–6 Employees), Including Resource And Task Planning As Well As Recruiting
Budget, Finance, And Investment Planning For Network, Data Center, And Cloud Infrastructure
It Strategy And Modernization: Introduction Of Infrastructure As Code And Devops Ways Of Working, Development Of A Hybrid Cloud, Automation Roadmaps
Information Security And Compliance: Creation And Implementation Of It Security Policies; Strong Hands-On Experience With Nis2, Bsi It Baseline Protection, And Kritis Requirements
Processes And Operations: Building Process And Documentation Structures Based On Itil; Incident And Outage Management
Vendor Management And Lifecycle Management Of Hardware And Software
Project Governance According To Prince2 (Practitioner); Project Leadership In Regulated Environments (Financial Sector, Public Administration)
Stakeholder Communication Across Business And Management Levels; Joint Solution Design With Business Units, Training And Enablement
Enterprise Linux (Rhel) And Data Center Operations
Automation (Ansible, Terraform, Ci/Cd)
Virtualization And Containers (Vmware, Proxmox, Kubernetes, Podman)
Identity & Access Management (Freeipa/Rhel Idm, Oidc/Sso)
Networking, Load Balancing, And High Availability
Monitoring And Observability (Prometheus, Grafana, Checkmk)
Cloud And Hybrid Architectures (Aws, Hetzner)
Sovereign Ai Integration (Local Llm Deployment)
Languages
Certifications & licenses
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Tobias is based in Mehren, Germany and can operate in on-site, hybrid, and remote work models.
Tobias speaks the following languages: German (Advanced).
Tobias has at least 12 years of experience. During this time, Tobias has worked in at least 5 different roles and for 4 different companies. The average length of individual experience is 2 years and 4 months. Note that Tobias may not have shared all experience and actually has more experience.
Based on recent experience, Tobias would be well-suited for roles such as: Freelance IT Consultant, Head of Network, Team Lead Infrastructure.
Tobias's most recent position is Freelance IT Consultant at Freelance IT Consultant.
In recent years, Tobias has worked for Freelance IT Consultant, Ströer SE, and INFOnline GmbH.
Tobias is most experienced in industries like Banking and Finance, Information Technology, and Government and Administration. Tobias also has some experience in Utilities, Telecommunication, and Media and Entertainment.
Tobias is most experienced in business areas like Information Technology, Operations, and Project Management. Tobias also has some experience in Finance and Human Resources.
Tobias has recently worked in industries like Banking and Finance, Information Technology, and Government and Administration.
Tobias has recently worked in business areas like Information Technology, Project Management, and Operations.
Tobias has 4 certificates. Among them, these include: CCNA (Cisco Certified Network Associate), PRINCE2 Foundation, and PRINCE2 Practitioner.
Tobias is immediately available part-time for suitable projects.
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 3 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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