Firewall Experts
in minutes, with vetted and available freelancers matched by AIHire experts who design secure network boundaries, configure next-generation firewall policies and connect protection with SIEM, VPN and cloud environments. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your project.
Meet FRATCH Experts who have recently used Firewall
Tobias S.
Last position:
IT Project Manager at Public Sector
Data Center Migration
Public Sector, Berlin
Technical project manager for data center migration
- Led the six-member project group
- Project planning, schedule coordination, and resource management
- Coordination with departments and analysts
- Planned and managed migrations
- Reviewed and adapted migration processes
- Managed and developed change management processes
- Directed activities for internal and external clients toward defined goals
- Considered and implemented all quality assurance requirements
- Ensured project and results documentation
- Integrated the project into the company context
- Prepared status reports and coordinated with project portfolio management
Citrix, VMware, network technology and security (including firewalls, DMZ, IDS, IPS)
Willy W.
Last position:
IT Security Consultant
SIEM/SOC Wazuh Implementation
Logistics
Wazuh | OpenSearch | Use Cases | Dashboards | Training
- Advised and provided technical support for the implementation of Wazuh as a SIEM solution
- Prepared and coordinated with teams involved in firewall, network, and IT operations
- Installed and configured Wazuh on the designated server infrastructure
- Developed security-related use cases and dashboards for centralized monitoring
- Delivered employee training on using and analyzing data from the SIEM solution
Krisztián K.
Last position:
Smart Device Automation at ITZBund
- Ticket automation for smart devices; SharePoint
- Python, JavaScript, Java, Gradle
- CI/CD Git pipeline and secure programming
Mario B.
Last position:
Project Lead & Consultant DMARC/Email Authentication, Exchange at Comedia. IT GmbH
Goal:
Protect customer domains from spoofing by establishing and securing DMARC compliance, and ensure secure and stable operation of the Exchange and Microsoft 365 environment while keeping legitimate mail flows running smoothly.
Responsibilities:
- Project management, including reporting, customer coordination and budget responsibility
- Set up and secure DMARC, including DKIM and SPF
- Ongoing analysis of DMARC reports to detect and resolve issues early
- Replace EWS connections before Microsoft's shutdown on 01.10.2026 by switching to Microsoft Graph
- Introduce sensitivity labels in Microsoft Purview to protect sensitive information
- Automate recurring administrative tasks with PowerShell
- 3rd Level Support and ongoing administration of Exchange Online and Exchange on-premises
Technologies: Exchange Online, Exchange Server (on-premises), Microsoft 365, Microsoft Graph API, EWS, Microsoft Purview / Sensitivity Labels, DMARC, DKIM, SPF, RUA-Reporting, PowerShell, HCL Notes
Jonás C.
Last position:
Security Responder (SOC) at gematik GmbH
At gematik's Cyber Defense Center (CDC/CERT) (critical infrastructure): Security Monitoring, Incident Response, and Service Monitoring for the telematics infrastructure (TI)
- Vulnerability management with Nexpose for gematik and the telematics infrastructure
- Vulnerability Assessment: Assessing and tracking vulnerabilities through Jira
- Security Monitoring and triage of security events with Splunk
- First Responder and Incident Handling: Initial assessment, triage, and escalation
- Service Monitoring: Monitoring critical TI services
- Documenting runbooks, playbooks, and knowledge base articles in Confluence
Mohammed N.
Last position:
IT System Manager at Corporate Network Solution Provider
- Architected, Deployed and Supported hosted email solutions in Linux and Windows environments with enterprise-grade anti-spam and security architecture for service-provider environments.
- Managed Microsoft Azure environments including Virtual Machines, VNets, Storage, VPN, and Firewall configuration.
- Administered Microsoft Exchange Server (2010-2019), Microsoft Exchange Server SE, Active Directory, PKI, Hyper-V and Zimbra environments with disaster recovery planning and operational support.
- Led Microsoft 365 onboarding and migration projects from Exchange, IMAP, and Zimbra platforms to Microsoft 365.
- Prepare security and compliance to support Microsoft 365 Copilot.
- Implement information protection and data loss prevention by using Microsoft Purview.
- Implement retention, eDiscovery, and communication compliance in Microsoft Purview.
- Integrated Active Directory Domain Services (AD DS), Active Directory Certificate Services (AD CS), and Active Directory Federation Services (AD FS).
- Delivered secure hybrid infrastructure solutions integrating Microsoft Windows Server and Linux-based enterprise environments.
- Supported enterprise integration projects involving Debian, Ubuntu, CentOS, Red Hat, Barracuda ESG, Qmail and Zimbra Platforms.
Nasif M.
Last position:
Solution Architect at SAP
Red Hat OpenShift Container Platform
Scope:
- Operation and configuration of the Red Hat OpenShift Container Platform, including network, storage, and security design.
- Implementation of centralized observability solutions (Prometheus, Grafana, alerting).
- Development of CI/CD pipelines, GitOps workflows, and automation frameworks.
- Training and enablement of operations and development teams.
Result: Accelerated service delivery, transparent operational metrics, and sustainable knowledge transfer.
Mahboobeh S.
Last position:
Senior Analytics Engineer at Jadoosoft
Engaged as an independent BI consultant for a FinTech SaaS platform, building and maintaining the end-to-end Microsoft Azure and Fabric analytics stack behind a multi-tenant accounting product used by business owners to track their own financial performance.
- Partnered with finance stakeholders to translate complex accounting workflows into real-time BI dashboards (P&L, Cash Flow, Balance Sheet), helping 2000+ business owners track cash flow and overall financial health effortlessly.
- Developed 10+ interactive dashboards, giving each business owner personalized, real-time visibility into their own sales performance, accounts receivable aging, and operational costs.
- Enforced strict enterprise data governance by implementing dynamic Row-Level Security (RLS) via DAX to isolate each business owner's data within the shared multi-tenant model.
- Maintained and extended an Azure ELT pipeline (Azure Data Factory, Azure SQL Database, Azure Synapse) that automated data ingestion and transformation.
- Contributed to a team-wide platform migration from Azure to Microsoft Fabric to optimize capacity licensing costs.
- Designed and implemented a Microsoft Fabric ELT pipeline (Lakehouse, Pipelines, PySpark) that automated data ingestion and transformation, replacing the prior Azure pipeline.
- Modeled cleansed data into a Star Schema within the data warehouse using T-SQL, powering the Power BI Semantic Model.
- Leveraged AI tools, including Copilot and Claude, as development partners across the entire ELT pipeline, from data ingestion to KPI reporting and visualization.
- Supported agile delivery processes, using Jira to track development tasks and Confluence to maintain technical and project documentation.
Eduard D.
Last position:
Guest Lecturer at Politehnica University Bucharest
"Reasoning Models: From LLM Foundations to NOC Automation."
Mojtaba P.
Last position:
AI Voice / RAG / Automation Engineer & Technical Project Manager at Technolohit
- Technical design, prioritization, and hands-on implementation of AI automation, conversational AI, voice AI, and private AI solutions.
- Translation of business requirements into system architecture, conversation/workflow logic, APIs, data flows, and production-ready AI workflows.
- Development of backend and integration components with Python/FastAPI, PostgreSQL/pgvector, Redis, REST APIs, webhooks, and background jobs.
- Design and implementation of RAG architectures with local/private LLMs, embeddings, document processing, semantic search, and controlled access to company knowledge.
- Prompt engineering for LLM and voice/conversational AI applications; iterative optimization based on real processes, system responses, and quality requirements.
- Practical work with ElevenLabs and its APIs in a voice AI project, as well as technical evaluation and integration of voice AI components.
- Deployment and operation of Docker-based systems on Linux with Nginx, CI/CD, monitoring/logging, backup/restore, and reproducible deployment processes.
Timo T.
Last position:
Gronic Ident & Sign at Gronic Systems GmbH
Gronic Ident & Sign
Core technologies: Android, Jetpack Compose, Retrofit, Regula Document Reader, Adobe Sign
Android app on dedicated devices for identifications and electronic signatures at the PoS
Michael K.
Last position:
Senior Program Manager at Pronetz Consulting GmbH
Project management and process consulting in the field of Building Information Modelling (BIM)
Klaus K.
Last position:
HCL Notes Banking Support, Domino Administration / Migration / Operations at Atruvia / HCL International
Description of duties “Atruvia / HCL International” Role: HCL Notes Banking Support, Domino Administration / Migration / Operations Operations, administration and technical support of the HCL Notes/Domino environment in the Atruvia banking environment on behalf of HCL. As part of an international support team, the focus was on second- and third-level support as well as the processing, management and monitoring of SLA tickets in categories 1, 2 and 3. Duties included the technical analysis and resolution of incidents in the Notes/Domino environment, system administration, and the development and modification of Lotus Notes /Domino applications and LotusScript agents when a programming solution was required. Another focus was ticket dispatching: analysing and assessing incoming tickets, assigning them to the responsible departments and specialist teams, and subsequently coordinating and tracking processing within the agreed SLA periods. There was also direct communication and coordination with subject-matter experts, departments and end customers of the connected banks. In particular, when language or technical communication problems arose within the international support team, German-language customer communication was handled and mediation between customers and technical specialists was provided. Objective Ensuring stable and reliable operation of the HCL Notes/Domino landscape in the Atruvia banking environment and the timely processing of business-critical support cases in line with the agreed Service Level Agreements. Incidents were to be analysed as early as possible and either resolved directly through administrative measures or suitable LotusScript/Notes solutions, or forwarded specifically to the responsible specialist teams. As of: 25.09.2026 (Version 2.10 LITE) including project times Page: 3 of 32 SPO-SOFT EDV Beratung, Dipl.-Ing. Klaus Kano, Tel.: +494532-2767682, Mail: [email], [link] At the same time, qualified preliminary analysis and targeted ticket dispatching were intended to ensure that every ticket reached the technically and professionally responsible department immediately and that unnecessary transfers, processing times and associated costs were reduced. Result Operational Notes/Domino support for the banks served was reliably ensured throughout the entire project period. SLA-relevant tickets were systematically analysed, prioritised, assigned to the responsible departments and tracked through to resolution. Some incidents were resolved directly through administration, technical error analysis and the development of suitable LotusScript agents and modifications to Notes/Domino applications. By directing tickets specifically to the relevant expert and specialist teams, incorrect assignments and unnecessary processing loops were reduced and compliance with the agreed SLA times was supported. Direct communication with the banks and mediation between German-speaking end customers and the international support team also contributed to efficient problem resolution and high customer satisfaction.
Tadeusz A.
Last position:
Lead Architect Enterprise Architecture & Security at CGI
Lead Architecture in an interdisciplinary architecture team covering enterprise, solution, NOOTS, cloud and security architecture as well as regulatory and European interoperability requirements.
Public / Government
Development and management of target architectures, principles, standards and technical guardrails; assessment of Security-by-Design, IAM, data protection and interface/integration architectures; architecture reviews, security assessments, risk analyses, and preparation of decision records, target visions, roadmaps and decision papers. Architectural knowledge and consideration of relevant AD-NOOTS requirements, particularly for IAM, authorization, secure integration and interoperability.
Technologies / Methods: Enterprise Architecture, Solution Architecture, Security Architecture, Cloud Architecture, NOOTS / EU-OOTS, IAM, Authorization, Security-by-Design, API/Integration Architecture, Interoperability, Risk Analysis, Architecture Governance
Security and integration requirements as well as technical decisions are structured in reliable architecture and decision artifacts.
Reza N.
Last position:
Senior IT-Security Expert at Teambank AG
- Completed the integration of log sources into Microsoft Sentinel, including GCP workloads – centralized consolidation of all security-relevant events from Azure and GCP environments for complete end-to-end telemetry and comprehensive compliance evidence
- Developed custom rules and use cases based on the GFG Use-Case Library and the MITRE ATT&CK Matrix to cover company-specific threats and GFG-relevant scenarios with precise, mapped detection rules
- Tuned detection rules to minimize false positives, optimized detection thresholds, and modeled exceptions – enabling the SOC to work with relevant, prioritized alerts while reducing Mean Time to Detect/Respond
- Built SOAR capabilities in Sentinel by developing playbooks to automate recurring response processes such as containment, user and host isolation, and ticketing – shorter response times and 24/7 scalability
- Designed and built a log transformation solution to normalize and enrich incoming raw logs (GeoIP, CMDB, threat intelligence) and convert them into a consistent schema for high-performance KQL queries, use case logic, and correlations
- Managed Azure security through Azure Policies to enforce security and compliance standards, prevent drift, and continuously remediate deviations
- Operated the Defender XDR portal to link endpoint, identity, email, and SaaS signals with Sentinel findings, enable holistic incident triage, and orchestrate measures directly from XDR
Technologies: Microsoft Sentinel, Microsoft Defender XDR, Azure Policy, KQL, GCP, MITRE ATT&CK
Discover over 15,000 top freelancers
Statistics of experts using Firewall
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
2.2 years
Positions per freelancer
15
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
74%
Master's degree or higher
43%
Doctorate
6%
Certifications per freelancer
5
Most common languages
German, English, French
Speak two or more languages
98%
Based on our profile pool as of 11 Nov 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology 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 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 11 Nov 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 (95%)
- Banking and Finance (52%)
- Manufacturing (48%)
- Professional Services (44%)
- Telecommunication (44%)
- Government and Administration (40%)
- Automotive (39%)
- Healthcare (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Network Protection
A firewall controls traffic between networks, systems and services according to defined security rules. It can protect an office network, a data centre, a cloud environment or an individual host from unauthorised access. Modern firewalls inspect applications, identities and content as well as addresses and ports.
Firewall Types
Companies choose between network firewalls, host-based firewalls, web application firewalls and cloud-native controls. Next-generation firewalls add application awareness, intrusion prevention, malware filtering and encrypted traffic inspection. A strong design places controls at internet gateways, internal trust boundaries and sensitive workloads.
Core Tooling
Firewall work can involve appliances from Fortinet, Palo Alto Networks, Cisco, Check Point or Sophos, as well as iptables, nftables, pfSense and cloud services such as AWS Network Firewall and Azure Firewall. Specialists also work with routing, VLANs, VPN gateways, DNS, certificates, identity services and central policy management.
Typical Deliverables
- Network segmentation and zone designs for offices, data centres and cloud environments
- Secure rule bases with documented sources, destinations, services and ownership
- Site-to-site and remote-access VPN configurations
- Web application firewall policies for APIs and public applications
- Logging, alerting and SIEM integrations for security operations
When Expertise Helps
Companies often bring in freelance specialists during a migration, office rollout, cloud adoption or security review. They can replace legacy appliances, remove risky rules, investigate blocked traffic and prepare controls for audits without disrupting production. Expertise is also valuable after an incident, when access paths and segmentation need a careful redesign.
Signs of Quality
Strong professionals begin with traffic flows, business requirements and failure scenarios rather than copying a standard rule set. They apply least privilege, use clear naming, test changes in controlled stages and keep rollback plans ready. They understand how a firewall affects performance, high availability, routing and user access, and they leave maintainable documentation for the internal team.
Frequently asked questions
The facts hiring teams ask for most often when it comes to Firewall.
A firewall filters network traffic between trusted and untrusted zones. Companies use it to block unauthorised access, segment internal systems, secure remote connections and record events for investigation.
A next-generation firewall can identify applications, users and threat patterns in addition to checking addresses and ports. Traditional filtering may be enough for simple boundaries, while advanced environments often need intrusion prevention, content controls and central policy management.
A web application firewall protects HTTP and HTTPS applications from attacks such as injection, malicious requests and abusive traffic. A network firewall controls broader traffic flows, so the two controls usually complement rather than replace each other.
A strong Firewall specialist usually understands routing, VLANs, VPNs, DNS, certificates and identity management. Experience with cloud networking, SIEM tools, incident response and infrastructure automation is also valuable for complex environments.
The right firewall experience depends on the scope and risk of the change. A limited rule update may need focused configuration skills, while a redesign involving segmentation, high availability, cloud connectivity or an incident requires deeper planning and testing.
Much firewall work can be completed remotely through secure administrative access, configuration exports and shared network diagrams. On-site collaboration can still help with hardware installation, unfamiliar cabling, local outages or workshops involving several infrastructure teams.
Review whether the firewall design reflects real traffic flows and least-privilege access, not just a long list of rules. Ask for change records, test evidence, monitoring coverage, rollback steps and clear documentation that another professional can maintain.
A Firewall specialist may work with Fortinet FortiGate, Palo Alto Networks, Cisco, Check Point, Sophos, pfSense, iptables or nftables. The product matters less than the ability to design sound policies, integrate the control with surrounding systems and operate it safely.
The average hourly rate of freelancers who have used Firewall in their recent projects is 104 €, which corresponds to a daily rate of about 832 € based on an 8-hour working day.
Of the freelancers who have used Firewall in their recent projects, 74% hold at least a Bachelor's degree, 43% hold at least a Master's degree, and 6% hold a doctorate.
On average, freelancers who have used Firewall in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers who have used Firewall in their recent projects are German (100%), English (96%), and French (20%).
The most common industries among freelancers who have used Firewall in their recent projects are Information Technology (95%), Banking and Finance (52%), and Manufacturing (48%).
The most common business areas among freelancers who have used Firewall in their recent projects are Information Technology (100%), Project Management (78%), and Operations (75%).
Main locations of FRATCH Experts, who have recently used Firewall
Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Dortmund 
Essen 
Nuremberg 
Vienna Across Switzerland our specialists are active in Zurich, Geneva, Basel and Bern — working on-site or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Zurich Geneva Basel Bern Countries:
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FRATCH CEO
