
Firewall Experts in Vienna
matched in minutes from over 15,000 CVsHire experts who design secure network perimeters, configure next-generation firewalls and connect cloud security controls with existing infrastructure. FRATCH matches you quickly with vetted, available freelancers whose skills fit your Firewall project.
Meet FRATCH Experts in Vienna, who have recently used Firewall
Christian E.
Last position:
Cyber Trust Austria Silver Certification at PrimeFaktor GmbH
Cyber Trust Austria Silver Certification
- Led application and implementation of the Cyber Trust Austria Silver label (KSV1870 Cyber Risk A-Rating; 25 validated controls)
- Mapped and fulfilled requirements covering risk management, incident response, access control, vulnerability and penetration testing, BCM, and supply-chain security, aligned with ISO/IEC 27001/27002 control themes and NIS 2 / NISG 2026 expectations
- Coordinated stakeholders, compiled audit evidence, and completed KSV1870 validation
Christian T.
Last position:
Project Management / Program Management at Energy company, AT
- NIS2/IT-OT infrastructure project for network and firewall: PoC, roll-out, and blueprint
- Coordination of IT, OT/operations, information security, business units, and external suppliers
- Risk and escalation management
- Direct evidence of security, multi-vendor delivery, and operational context.
Alexander V.
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 A.
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 M.
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 F.
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 A.
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 K.
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
23 years

Position duration
4 years

Positions per freelancer
11

Top business areas
Information Technology, Project Management, Quality Assurance

Top industries
Information Technology, Healthcare, Aerospace and Defense

Certification focus areas
Information Technology, Project Management, Customer Service
Bachelor's degree or higher
86%
Master's degree or higher
29%
Doctorate
29%

Certifications per freelancer
3

Most common languages
German, English, Danish

Speak two or more languages
100%
Based on our profile pool as of 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Vienna are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Firewall experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (100%)
- Healthcare (63%)
- Aerospace and Defense (50%)
- Government and Administration (50%)
- Energy (38%)
- Banking and Finance (38%)
- Manufacturing (38%)
- Professional Services (38%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What a Firewall does
A firewall controls traffic between trusted and untrusted networks. It evaluates connections against rules, blocks unwanted access and permits approved communication. Companies use firewalls to protect offices, data centres, cloud environments, applications and remote users. The term also covers network firewalls, host-based firewalls and next-generation firewall systems that inspect applications and users.
Core capabilities
Modern firewall work combines policy design, traffic analysis and secure operations. Strong professionals translate business requirements into clear rules without creating hidden access paths or unnecessary disruption. Typical capabilities include:
- Designing network zones, segments and access policies
- Configuring VPN, NAT, routing and identity-aware controls
- Inspecting application traffic, malware indicators and logs
- Integrating firewalls with SIEM, EDR and cloud security tools
Ecosystem and tooling
Firewall specialists work across appliance, software and cloud products. Common environments include Palo Alto Networks, Fortinet FortiGate, Cisco Secure Firewall, Check Point and open-source solutions such as pfSense. The surrounding stack can include IP networking, DNS, TLS, Active Directory, Kubernetes ingress, AWS or Azure network controls, infrastructure as code and centralised monitoring.
When companies need support
Freelance expertise is useful when an organisation is replacing an appliance, moving workloads to the cloud or responding to a security review. It also helps when rules have grown difficult to audit or when remote access needs a safer design. Signs that specialist support is needed include:
- Repeated rule exceptions or unclear ownership of policies
- Slow incident response because logs lack useful context
- Mergers, office moves or major network segmentation work
- New cloud, hybrid or zero-trust requirements
Project deliverables
A firewall engagement may produce a current-state review, target architecture and documented rule base. Professionals can build migration plans, configure high-availability pairs, test failover and validate secure connectivity. Useful handover material includes diagrams, change records, monitoring guidance and an access review process that internal teams can maintain.
What strong professionals bring
The best specialists understand security and operations together. They test changes, explain risk in business terms and keep policies narrow, traceable and reversible. Look for experience with the relevant vendor, routing and authentication model, plus evidence of incident handling and disciplined documentation. In Vienna, on-site workshops can support local infrastructure teams, while much configuration, review and monitoring work can be completed remotely with clear access controls.
Frequently asked questions
Key details about Firewall, drawn from the questions we get asked most.
A Firewall controls network traffic according to security rules. It separates zones, limits exposed services, supports secure remote access and records activity for investigation. Depending on the design, it can also inspect applications, identities and encrypted traffic.
A next-generation firewall adds application awareness, user-based policies, intrusion prevention and threat intelligence to conventional address and port filtering. The right choice depends on traffic patterns, performance needs, operational skills and how much security control should be centralised.
A strong Firewall specialist should understand routing, switching, DNS, VPNs, identity services and network segmentation. Cloud networking, SIEM integration, endpoint security and infrastructure as code are valuable when the environment spans data centres and public cloud.
A Firewall project needs enough experience to assess dependencies, change rules safely and test failure scenarios. The required depth depends on the number of sites, vendors, integrations and compliance demands. Ask for evidence of comparable migrations, audits or incident response work rather than relying only on product certifications.
Much Firewall work can be handled remotely through controlled access, change windows and shared documentation. On-site collaboration in Vienna can still help with appliance replacement, cabling, physical network dependencies or workshops with local infrastructure teams. Agree on access, escalation and language expectations before work begins.
A cloud firewall can fit workloads that change location, scale or connectivity frequently and need policy close to cloud resources. An appliance may remain appropriate for predictable office or data-centre traffic, specialised throughput or existing operational processes. A specialist should compare architecture, latency, logging and ownership before recommending either option.
Evaluate whether the Firewall design has clear zones, least-privilege rules, logging, rollback steps and tested failover. Ask the specialist to explain denied traffic, rule ownership and how changes will be reviewed. Good documentation and repeatable validation are as important as a working configuration.
Working with Firewall systems often involves sensitive access, strict change control and coordination with network, security and application teams. Professionals should expect to review existing rules, map dependencies and communicate during maintenance windows. Familiarity with Vienna-based on-site requirements can help when physical infrastructure or local workshops are part of the engagement.
The average hourly rate of freelancers in Vienna, Austria who have used Firewall in their recent projects is 117 €, which corresponds to a daily rate of about 934 € based on an 8-hour working day.
Of the freelancers in Vienna, Austria who have used Firewall in their recent projects, 86% hold at least a Bachelor's degree, 29% hold at least a Master's degree, and 29% hold a doctorate.
On average, freelancers in Vienna, Austria who have used Firewall in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 4 years.
The most common languages among freelancers in Vienna, Austria who have used Firewall in their recent projects are German (100%), English (100%), and Danish (13%).
The most common industries among freelancers in Vienna, Austria who have used Firewall in their recent projects are Information Technology (100%), Healthcare (63%), and Aerospace and Defense (50%).
The most common business areas among freelancers in Vienna, Austria who have used Firewall in their recent projects are Information Technology (100%), Project Management (63%), and Quality Assurance (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.
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