OpenVAS Experts in Germany
matched in minutes, with vetted and available freelancers powered by AIHire experts who configure vulnerability scans, tune Greenbone Vulnerability Management environments and turn findings into clear remediation plans. FRATCH matches you with vetted, available freelancers whose skills fit your OpenVAS project quickly and precisely.
Meet FRATCH Experts in Germany, who have recently used OpenVAS
Enrique G.
Last position:
Security Architect at Capgemini
I implemented a Zero-Trust architecture for robust, military-grade maritime container mini data centers based on VMware & Tanzu to support containerized GIS workloads for ground forces. The main focus was on securing communications, workload protection, and data access in contested electronic battle environments affected by jamming, interception, signal manipulation, and constantly changing operational conditions. I designed and architected use cases so that every element of workload, identity, and system could continue to operate independently and securely even in degraded or disrupted scenarios. In parallel, I defined the enterprise and solution security architecture with LeanIX, Bizzdesign, and HOPEX as enterprise architecture, repository, and governance platforms to maintain architecture inventory, relationships, traceability, target pictures, and security governance in complex environments. For the architectural designs, I used Sparx Enterprise Architect to describe formal architecture views, interfaces, trust boundaries, and system architecture in both IT and OT environments. IriusRisk was used for threat modeling of the solution to identify architecture-driven risks, derive security requirements, and detect countermeasures and design gaps directly from the solution models. Risk and compliance management was supported with Archer. Architecture decisions, control gaps, and operational risks were translated into controlled governance and auditable compliance measures. For documentation, collaboration, and visual design, I used Confluence to maintain Architecture Decision Records, Security Blueprints, and workflows. I used Lucidchart and draw.io to create design artifacts tailored to stakeholders. I also defined OT security concepts with support from electrical and mechanical engineers in the areas of oil, vehicle onboard systems, rail, power plants, pharma, gas turbines, and nuclear technology. I created the end-to-end OT security strategy, starting with global policy, developed into standards and procedures, and finally aligned with Bell-LaPadula, Purdue Model, SABSA, TOGAF ADM, CENELEC 50701, IEC 62443, and NIST standards. In addition, I worked with engineering team leads to identify critical KBP assets and place them under protective measures that segmented SCADA, PLC, and HMI assets. I drove collaboration between Security, IT, and OT teams to create standardized workflows and use cases for the OT security solution catalog, while integrating Defense-in-Depth and Zero-Trust principles into operational environments. A key part of my work was integrating multidisciplinary engineering, security, and operations stakeholders into a unified security blueprinting strategy and ensuring that architecture, threat modeling, governance, and documentation were technically strong and operationally practical.
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as the frontend framework and Java as the backend language
- Use of the Swagger OpenAPI specification for REST communication between the frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with a web interface and a JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts to test outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to monitor the REST API of the self-developed software
Dirk P.
Last position:
Freelance Cyber Defense Lead & KRITIS/NIS2 Consultant | AI Security Architect at Self-Employed
Situation: Increasing demand for privacy-compliant AI solutions for clients in the KRITIS and mid-market sector that need to analyze sensitive media content (audio, video, documents) without sending data to public cloud LLMs.
Task: Design, deployment, and secure operation of a fully self-hosted AI infrastructure including a custom-built digital management platform for automated media analysis.
Action: Architected and implemented a multi-tier platform on hardened Proxmox infrastructure with frontend (Nuxt 3, Vue 3, TypeScript, Tailwind 4), backend (Laravel 13, PHP 8.4, Sanctum), data storage (PostgreSQL 16, MongoDB 7), caching/queuing (Redis 7, Laravel Queue), AI workers (Python 3.11, Whisper, DeepFace, Librosa), scheduling (Laravel Scheduler/Cron), and local LLMs (Gemma, DeepSeek, Qwen, Mistral, LLaMA, Phi) via OpenWebUI with segmented network access, API hardening, and audit logging following BSI recommendations.
Result: Fully GDPR-compliant, on-premises AI platform with zero data leakage to third parties.
Task: Overall responsibility as an external Head of Cyber Security / CISO-as-a-Service for the design, implementation, and continuous improvement of ISMS according to ISO 27001, BSI IT-Grundschutz, and NIS2.
Action: Built and managed Cyber Defense Centers (CDC) with SOC operations, integrated SIEM solutions (Splunk, Graylog), established risk-based vulnerability management (Qualys, Nessus, OpenVAS), and conducted regular infrastructure, application, and physical penetration tests.
Result: Audit-ready ISMS for multiple clients and a 60% reduction in critical vulnerabilities within 90 days.
Task: Design and execution of NIS2 assessments and operational roll-out plans for KRITIS operators.
Action: Developed an online assessment tool for automated identification of individual weakness profiles, implemented ISMS optimizations, penetration testing, awareness programs, GRC suite deployment, and delivered C-level presentations.
Result: Accelerated the consulting process by 50% and successfully prepared multiple clients for NIS2 compliance.
Task: Incident commander for crisis response, forensics, and business recovery in ransomware attacks and APT campaigns.
Action: Coordinated with state and federal police (LKA, BKA), performed forensic analysis (OSForensics, Wireshark, Kali Linux), executed disaster recovery and BCM strategies, and developed BTC extortion response strategies.
Result: 100% recovery rate within defined RTO windows and sustainable post-incident security architectures.
Action: Planned, built, and operated a hardened multi-VM infrastructure (Proxmox, 15+ VMs) with web and mail servers, Graylog, OPNsense firewalls, CRM/ERP and LLM instances, network segmentation, DDoS mitigation, automated patch management, and backup strategies.
Result: >99.5% uptime over 20+ years and zero compromises.
Action: Designed coordinated phishing campaigns with five levels of difficulty, developed e-trainings and webinars in a PDCA cycle, and led red and blue teams.
Result: Phishing click rate reduced from 35% to under 5% within three campaign cycles.
Kennedy A.
Last position:
Cybersecurity Trainee at CYBERDEFENDERS
- Completed 25+ hands-on labs focusing on digital forensics, incident response, and advanced threat hunting techniques.
- Earned top-tier badges in malware analysis, enterprise log analysis, and threat intelligence gathering.
- Developed specialised skills in forensic report writing and evidence collection methodologies to support incident investigations.
André B.
Last position:
External Attack Surface Assessment & Cybersecurity Readiness Checks at Graydaxe Cybersecurity GmbH
- Conducting cybersecurity readiness checks based on an in-house assessment methodology
- Analyzing the external attack surface using the Graydaxe EASM platform
- Assessing maturity levels and deriving prioritized recommendations for action
Andreas I.
Last position:
Cybersecurity Specialist Assessor at Bundesnetzagentur
- Recognition of national notified bodies
- Preparation of cybersecurity competency reports
- EU Radio Equipment Directive
Arndt S.
Last position:
Information Security Officer according to TISAX at Automotive Supplier
Tan P.
Last position:
DevOps Engineer in the DevOps Team at Rise-World
- Implementation of specified DevOps solutions to automate infrastructure (Terraform, Bicep, CloudFormation, Ansible) on-premises datacenter (Ovirt, Proxmox, Ceph Cluster, MinIO) and private cloud.
- Administration, configuration and implementation of CI/CD DevOps pipelines (GitLab, GitFlow) to support development process (Artifactory, Prometheus, Istio, service mesh, Helm Chart, OpenShift (Red Hat Enterprise) / Kubernetes cluster), Red Hat Satellite.
- Administration, setup, monitoring and patching of Linux infrastructure based on Red Hat Enterprise for Dev, Test and QA.
- Use of Scrum and Kanban methods.
- Administration, configuration and implementation of security standards for deploying on Dev, Test, QA and Prod stages of the new ePA applications.
- Development of new plugins and add-ons needed on current infrastructure.
- Database support.
- Data analytics support (Python, Spark, Pandas, Power BI, Splunk Enterprise).
- Implementation of best practices for DevSecOps and BizDevOps using GitOps (ArgoCD), Streamlit framework, Semaphore Ansible UI.
- Configuration and testing of iperf, uperf, sysbench using benchmark-operator for external source data and IoT/MDM devices, creating reports via ELK / OpenSearch.
- Building a new Databricks platform to collect and analyze big data from different sources and IoT devices into Hadoop framework (Python, Pandas, PySpark, Power BI, Apache Airflow).
- Building backend data aggregation and processing to automate configuration deployment between different OpenShift clusters and big data framework (Python, Pandas, PySpark, Apache Spark, PostgreSQL, Django 2, Ansible Automation, Jira JSM).
- Building a new ML pipeline platform using Kubeflow, TensorFlow, KServe.
- Data extraction, transformation and loading from different data sources including structured and unstructured data to analytic DWH / big data cluster using Python, Pandas, Polars, Power BI, Django backend and PostgreSQL.
- Setup of new DevOps Test and QA HashiCorp Vault cluster for PKI and IAM.
- Configuration and testing of automated patching based on CVSS score, SIEM-integrated CVEs.
- Use of Nexpose and InsightVM to scan vulnerability events in network, host, container and application.
- Design and implementation of secure and scalable AWS architectures including VPC, EC2, S3, RDS and Route53 and similar setups on Azure and GCP.
- Automated system provisioning and deployment using CloudFormation templates.
- Configuration of IAM roles, policies and permissions to ensure secure access control.
- Patch management, backup automation and disaster recovery setup on AWS infrastructure.
- Monitoring and optimization of system performance using AWS CloudWatch and AWS Trusted Advisor.
- Support of VMware services (vSphere, Aria, Horizon) and the virtual desktop environment.
- Development and maintenance of CI/CD pipelines using Jenkins, GitLab CI/CD and AWS CodePipeline with interface to Nutanix.
- Configuration of AWS CloudWatch to monitor application performance and system events.
- Planning and execution of migration of on-premises applications to AWS cloud platforms.
- Deployment of containerized applications using Docker and Kubernetes in AWS environments.
- Deployment of internal software packages between availability zones using AWS CodeDeploy.
- Building and deploying ML models using Scikit-learn, XGBoost and Spark MLlib including hyperparameter tuning, model evaluation and production deployment.
Benno Z.
Last position:
Freelance Data Protection Officer at SUMTEC
- Drafting the data protection concept under EU GDPR including DPIA and implementing TOMs
Ransford A.
Last position:
Volunteer IT & Cybersecurity Team Lead at Farm House Organic
- Led remote IT and cybersecurity operations, including secure device provisioning, app deployment, compliance monitoring, and endpoint security with Microsoft Intune and Defender for Endpoint.
- Managed Identity and Access Management (IAM) with Microsoft Entra ID, including implementing role-based access control, conditional access, VPN configuration, and multi-factor authentication (MFA).
- Maintained and secured Cloud PCs, provided technical remote support, and optimized performance within the Microsoft 365 Business environment.
Alexander N.
Last position:
Security Expert at DAK-Gesundheit
- Pentesting of mobile applications
- Code review
- Gematik audit
- Development of secure software development methods
- Creation of security and test concepts
- Penetration testing of software and architecture
- Vulnerability analysis
- Automation and information security
- Use of Confluence and Jira
- Working with databases, J2EE, JavaServer Faces, Liquibase, Apache, Maven, Mercurial, Oracle Financials
- Documentation and creation of security policies
- Management of software systems, SharePoint, PrimeFaces, Git
- Compliance with security regulations and .NET, AWS, API
- Tools: MobSF, Frida, Android Studio, Drozer, Objection, Azure
Krisztián K.
Last position:
IT-Soc/Vulnerability at ITZBund
- Vulnerability management (Greenbone, Tenable SC, Rapid7)
- Automation of vulnerability scans
- OpenTofu (Terraform)/Ansible/Vault/Podman/Docker
- Compliance audit
- SOC (ElasticSearch, Graylog)
- Python/Rust/Bash/Shell/PowerShell
- Git collaboration
- Report standardization and automation
- POC for several vulnerability scanning systems
- Setup of vulnerability scanning system
Dirk P.
Last position:
IT systems and security engineer at Self-employed consulting engineer
Discover over 15,000 top freelancers
Statistics of experts using OpenVAS
Aggregated from the professional profiles of matched freelancers.
Experience
23 years
Position duration
2.5 years
Positions per freelancer
14
Top business areas
Information Technology, Project Management, Operations
Top industries
Information Technology, Professional Services, Banking and Finance
Certification focus areas
Information Technology, Legal, Audit
Bachelor's degree or higher
100%
Master's degree or higher
42%
Doctorate
8%
Certifications per freelancer
11
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 9 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Germany 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 Germany using OpenVAS
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 9 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
OpenVAS 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 (92%)
- Professional Services (62%)
- Banking and Finance (54%)
- Government and Administration (54%)
- Transportation (38%)
- Telecommunication (38%)
- Automotive (31%)
- Energy (31%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
OpenVAS in brief
OpenVAS is an open-source vulnerability scanning technology used to identify weaknesses across networks, hosts, services and applications. It is closely associated with Greenbone Vulnerability Management, or GVM, which provides the feeds, management services and interfaces around the scanner. The technology supports repeatable security assessments without depending on manual checks alone.
Scanning workflow
OpenVAS professionals plan authenticated and unauthenticated scans, select suitable policies and define safe targets. They configure credentials, schedules, exclusions and performance settings so assessments fit the environment. Results are reviewed in context, then translated into remediation work rather than treated as a raw list of alerts.
Ecosystem and tooling
The wider GVM stack includes the scanner, management services, vulnerability tests, feed synchronisation and web interfaces such as Greenbone Security Assistant. Strong specialists also work with network discovery, asset inventories, CVE data, CVSS scoring, credential management and ticketing workflows. Automation through APIs and scripts helps connect scans with existing security operations.
Where companies use it
- Assess servers, endpoints, network devices and virtual infrastructure
- Validate hardening after operating-system or middleware changes
- Support internal security reviews and recurring vulnerability management
- Investigate exposed services in cloud and hybrid environments
- Produce findings that infrastructure and application teams can act on
OpenVAS can support many sectors in Germany, including manufacturing, retail, healthcare and financial services. Its value depends on accurate asset coverage, safe scan design and disciplined follow-up.
When freelance expertise helps
Companies often bring in a freelance specialist during a new GVM rollout, a security assessment or a migration from another scanner. External expertise is also useful when feeds fail to update, scans overload systems, reports contain too many false positives or teams lack a reliable remediation process. Remote work is practical for configuration and analysis, while on-site access may help with restricted networks and sensitive assets in Germany.
What strong experts deliver
Good OpenVAS experts explain risk without overstating it. They understand network segmentation, Linux services, identity controls, cloud exposure and the difference between detection and verification. Their deliverables may include scan policies, asset and credential designs, exception rules, validated findings, executive summaries and remediation backlogs. They document assumptions, protect scan credentials and leave the company with a maintainable operating process.
Frequently asked questions
The facts hiring teams ask for most often when it comes to OpenVAS.
OpenVAS is used to scan systems and networks for known vulnerabilities, exposed services, insecure configurations and missing security updates. In practice, it is commonly operated within Greenbone Vulnerability Management to schedule assessments, manage assets and report findings.
OpenVAS offers an open-source scanner and can be a flexible option for organisations that want control over deployment and integration. Commercial tools may provide broader managed services, proprietary coverage or simpler packaging, so the right choice depends on asset types, support expectations and internal security processes.
OpenVAS work benefits from knowledge of network protocols, Linux administration, Windows systems, cloud security and identity management. A strong specialist can also interpret CVE and CVSS data, automate through APIs, validate important findings and connect remediation to ticketing or security operations workflows.
OpenVAS projects need enough practical experience to design safe scan policies, configure credentials, manage feeds and distinguish useful findings from noise. The scope matters more than a fixed duration: a small assessment may need focused configuration, while an enterprise rollout requires asset governance, performance planning and remediation ownership.
OpenVAS can often be configured and analysed remotely through approved access, especially when the target environment is well documented. On-site collaboration may still be necessary for isolated networks, sensitive systems, access reviews or organisations that require local language communication and direct coordination.
OpenVAS quality is shown by more than the ability to start a scan. Ask how the specialist handles authenticated testing, exclusions, scan impact, feed maintenance, false-positive validation and clear remediation advice, then review whether previous deliverables were understandable to both security and infrastructure teams.
OpenVAS identifies many known vulnerabilities and configuration weaknesses, but it does not replace a penetration test. Automated scanning generally does not reproduce the full context, chained attack paths or business-logic testing that a qualified penetration-testing team can provide.
OpenVAS specialists may deliver a configured GVM environment, scan policies, asset and credential documentation, validated reports and a prioritised remediation backlog. They should also explain limitations, record exceptions and show how the internal team can maintain feeds, rerun assessments and verify fixes.
The average hourly rate of freelancers in Germany who have used OpenVAS in their recent projects is 106 €, which corresponds to a daily rate of about 845 € based on an 8-hour working day.
Of the freelancers in Germany who have used OpenVAS in their recent projects, 100% hold at least a Bachelor's degree, 42% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Germany who have used OpenVAS in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Germany who have used OpenVAS in their recent projects are German (100%), English (100%), and Spanish (15%).
The most common industries among freelancers in Germany who have used OpenVAS in their recent projects are Information Technology (92%), Professional Services (62%), and Banking and Finance (54%).
The most common business areas among freelancers in Germany who have used OpenVAS in their recent projects are Information Technology (100%), Project Management (77%), and Operations (69%).
Main locations of FRATCH Experts, who have recently used OpenVAS
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.
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
