Firewall Experts in Vienna
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Meet FRATCH Experts in Vienna, who have recently used Firewall
Alexander Vasilenko
Last position:
Senior Cloud & Kubernetes Architect at A.S.E. | Business Solutions for Construction
- Architected and deployed a highly available, multi-tenant Kubernetes platform on Google Kubernetes Engine (GKE) for business-critical microservices.
- Designed and implemented a comprehensive Infrastructure-as-Code strategy using Terraform for managing GKE clusters, networking (VPCs, Subnets), and IAM policies.
- Engineered optimized storage solutions for stateful workloads (MongoDB) using GKE PersistentVolumes, enhancing performance and data resiliency.
- Established a full-stack observability framework using Google Cloud Monitoring, Logging, Prometheus, and Grafana.
Martin Ananda Boeker
Last position:
Systems Architect at ASFiNAG
- Migrated infrastructure automation from Puppet to Ansible
- Ensured compatibility with CentOS and RHEL 8 and 9
- Managed users in Active Directory
- Managed applications, services, security policies, certificates, and more
Stefan Morgenthaler
Last position:
Founder & CEO at MoreGeek IT Services GmbH
- I offer project-based short and long-term freelance services for Linux and open source projects
- DevOps/SecOps/Sysadmin for Linux operating systems with a strong focus on idempotent automation and high availability
- Migration projects: on-site to cloud (and vice versa) and cloud-to-cloud migrations between providers
- Development environments: standardizing customers' development and sysadmin workstations/clients
- Digital sovereignty solutions (independent of hyperscalers): Linux desktop (Ubuntu/SUSE), mail and communications (groupware mail/calendar/contacts), file sharing and collaboration (Nextcloud)
Christian Frages
Last position:
Project Manager at EVVA Sicherheitstechnologie GmbH
- Lead the SPG team
- Coordinate teams and activities across company boundaries
- Intensive time and cost controlling
- Monthly reporting to the CIO/CDO
- Contributing to the technical solution concept and sprint planning
- Responsibility for rollout planning
- Involvement in testing
Nehat Adler
Last position:
IT Application Manager at Self Employed - BM.I
- .net C# - IIS Application Management
- Graylog, MS Windows Server AD, DNS, DHCP, Failover Cluster Manager, Ansible Linux for Deployment, MS SQL Server
Michael Krakowitsch
Last position:
Business WIFI installation
- WIFI installation for various customers
Discover over 15,000 top freelancers
Statistics of experts using Firewall
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
3.5 years
Positions per freelancer
11
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Aerospace and Defense, Banking and Finance
Certification focus areas
Information Technology, Project Management, Customer Service
Bachelor's degree or higher
80%
Certifications per freelancer
4
Most common languages
German, English, Russian
Speak two or more languages
100%
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Vienna are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Vienna using Firewall
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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Firewall basics
A firewall controls network traffic between trusted and untrusted systems. It enforces rules on ports, protocols, sources, and destinations to reduce exposure and keep services reachable only to the right users and systems.
What specialists deliver
- Rule design and cleanup for new or legacy environments
- Perimeter, internal, and cloud firewall setup
- VPN access, NAT, and segment-based traffic control
- Log review, alert tuning, and incident support
- Change planning for production cutovers
Common platforms
Firewall specialists often work with Palo Alto Networks, Fortinet FortiGate, Cisco ASA, Check Point, pfSense, and Windows Defender Firewall. The right choice depends on the network, the security model, and whether the work is on-premises, cloud-based, or mixed.
When companies bring in help
Freelance expertise is useful when a rule base has grown messy, a migration needs careful timing, or a new site must be connected without opening unnecessary paths. Teams in Vienna also bring in specialists for office rollouts, secure remote access, and network changes that need clear documentation and low downtime.
Strong specialist profile
A good firewall professional thinks in flows, not only in devices. They understand routing, DNS, subnetting, VPNs, and how firewall policy affects apps, identity, and incident response.
Quality signals
- Clear rule naming and documented intent
- Least-privilege policy design
- Safe testing and rollback plans
- Logging that supports audits and troubleshooting
- Ability to explain tradeoffs in plain language
Frequently asked questions
Key details about Firewall, drawn from the questions we get asked most.
A strong Firewall specialist designs and maintains traffic rules that protect internal systems, remote access, and exposed services. They also handle NAT, VPN paths, logging, and troubleshooting when something is blocked or unexpectedly open.
A Firewall controls whether traffic is allowed to pass based on policy. A proxy sits between clients and services for mediation or inspection, while an IDS watches for suspicious activity and raises alerts. In many environments these tools work together, but they do not replace each other.
A Firewall professional usually brings routing, subnetting, VPN setup, DNS awareness, and log analysis. They should also understand segmentation, zero-trust concepts, and how application teams depend on network paths.
A Firewall change can be simple or high risk depending on the environment. Small rule additions may need only a focused specialist, while migrations, cloud connectivity, or large policy cleanups benefit from someone who has handled production cutovers before.
Most Firewall work can be done remotely because it is driven by configuration, logs, and change windows. On-site presence in Vienna can help for data center access, hands-on coordination, or teams that prefer face-to-face workshops during major changes.
Look for a Firewall specialist who explains why each rule exists and can remove old rules without breaking services. Good signs include clear documentation, rollback planning, careful testing, and calm troubleshooting under pressure.
A Firewall expert is often needed when rules have piled up, traffic is hard to trace, or remote access keeps failing. Other signs include repeated exceptions, unclear ownership of policy changes, and security reviews that uncover too much open access.
A Firewall freelancer should ask about the current topology, change process, rollback options, and which business systems are sensitive to downtime. It also helps to know whether the environment uses on-premises devices, cloud firewalls, or a mix of both.
The average hourly rate of freelancers in Vienna, Austria who have used Firewall in their recent projects is 113 €, which corresponds to a daily rate of about 902 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used Firewall in their recent projects, 80% hold at least a Bachelor's degree.
On average, freelancers in Vienna, Austria who have used Firewall in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 3.5 years.
The most common languages among freelancers in Vienna, Austria who have used Firewall in their recent projects are German (100%), English (100%), and Russian (17%).
The most common industries among freelancers in Vienna, Austria who have used Firewall in their recent projects are Information Technology (100%), Aerospace and Defense (50%), and Banking and Finance (50%).
The most common business areas among freelancers in Vienna, Austria who have used Firewall in their recent projects are Information Technology (100%), Operations (50%), and Project Management (50%).
Main locations of FRATCH Experts, who have recently used Firewall
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Countries:
Vienna 
Graz Request a free demo
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Philipp Thomaschewski
FRATCH CEO
