Penetration Testing Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used Penetration Testing
Nikolaus B.
Last position:
Information Security, IS-Governance & Crossfunctional Governance at Zürich Beteiligungs-AG (Deutschland)
- Conducted security assessments for supplier qualification, business unit onboarding, and ongoing reviews of service providers and partners (Ongoing Assurance).
- Assessed technical and organizational measures (TOMs) against GDPR and information security requirements.
- Handled security reviews and approval processes in the Global Approval Navigator (OneTrust).
- Advised business units and IT on information security, security requirements, and risk-appropriate measures.
- Supported the development of SOC/SIEM processes and tools as part of the ISMS in line with ISO/IEC 27001.
- Analyzed cyber threats and coordinated security objectives and measures to address Security Findings with the SOC team.
- Monitored and assessed current security advisories and security-related metrics (KPIs).
- Reviewed, assessed risks, and approved exception requests (Security Exceptions).
- Independently analyzed and handled Security Events and supported the handling of security incidents.
- Planned and supported awareness initiatives to strengthen security awareness.
- Created, implemented, and reviewed information security policies and standards.
- Conducted protection needs analyses and gap assessments to identify security gaps and risk deviations.
- Defined and reviewed technical and organizational risk treatment measures.
- Advised on Third Party Governance with consideration of DORA, ISO/IEC 27001, ISO/IEC 27005, ISO/IEC 42001, and BCM in line with ISO 22301.
Rudolf E.
Last position:
Datacenter Engineer, Network & Security Administrator at International Insurance Group
Operation and further development of the network and security infrastructure.
Monitoring, analysis and resolution of network and security incidents.
Cross-departmental collaboration with other teams on operations and further development, and reporting.
Firewall vulnerability analysis.
Firewall access requests.
Troubleshooting IP communication issues on network and firewall infrastructure.
Security-critical IT infrastructure, processing of personal data, compliance with legal requirements.
Products: Palo Alto Networks Firewalls, Cisco ACI, Checkpoint Firewalls, F5
Technologies: SDN, SDWAN, Cisco EPIC, Cisco ACI
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
Tobias B.
Last position:
Project Manager Business Development at Anafi Art de Vivre
- manages the early-stage phase including the completion of company setup and market entry activities
- develops the business plan for market entry in the field of furniture production and design
- represents the company at trade fairs in Dubai and establishes initial customer relationships
- leads the process automation for support requests with the help of AI tools
Thorsten O.
Last position:
Workstream Lead (WS) at Bank-Verlag GmbH
- Introduction of giro card with Visa Debit card payment function (Combocard) for Commerzbank
- Support for the Card Processing Team (card processing; Clearing & Settlement incl. Dispute Management teams) in project work
- Creation of requirements for the Clearing & Settlement team, Authorization team (AZ) and Card Production team (KP) as part of a requirements catalog
- Requirements engineering (requirements management) with business contact person
- Participation in workstream meetings between VISA Inc., SRC Security Research & Consulting GmbH, Commerzbank AG and consulting firms (PwC and Senacor Technologies AG)
- Sprint planning with Jira tickets of type Task and use of Confluence
- Creation and presentation of weekly status reports for the Clearing & Settlement, Dispute Management and Reporting & GUI workstreams
- Coordination with network and file transfer teams for connection tests of new interfaces, e.g. setup of host keys, use of VPN or sipnet connections
- Coordination of the delivery of test files, e.g. exchange rates (FX rates; TC 56 of VISA rates), VISA Debit and Credit transactions (format Base II) and EANSS/ISS Base II clearing files to the Debit Clearing System (DCS)
- Conducting coordination meetings on the use of Visanet Settlement Service (VSS) and PSD2 reports and payment traffic statistics (ZVS)
- Organizing workshops with FiServ (First Data) on Dispute Management and complaint handling
- Setup and maintenance of Open Point List (OPL) in Confluence
- Technologies/methods: Jira, Confluence, giro card, VISA Debit card, payments, Kanban board, BIN, routing, CIQ, VPAY, ScalaTest, Dispute Management
Jacqueline H.
Last position:
Kitchen Appliance Manufacturer
Setting up and enhancing an international subscription management system
Migrating and decommissioning a Hybris-SAP system and integrating Zuora
Implementing numerous interfaces to various systems (external and internal)
Setting up and improving monitoring with Grafana, Prometheus, and Databricks
Introducing logging with Loki
Implementing business requirements using jQuery, Thymeleaf, Spring Boot, Java, Go, and Python
Adjusting and extending the GitLab CI pipelines
Setting up and extending infrastructure as code with Terraform and ArgoCD on AWS
Setting up and running E2E and performance tests
Expanding the Databricks business intelligence solution to provide various KPIs
Responsibilities: Architecture, DevOps, development, unit tests, coaching employees and apprentices, E2E, smoke, and integration tests, agile methods consulting (Kanban, Scrum)
Technologies and methods: Java, Go, Kotlin, Node.js, Spring Boot, SOAP/REST, Quarkus, Thymeleaf, Vaadin, Slack, Jira, Confluence, IntelliJ, GitLab, SQS, Kafka, AWS, Kubernetes, Terraform, Maven, Gradle, GitLab CI, Databricks
Discover over 15,000 top freelancers
Statistics of experts using Penetration Testing
Aggregated from the professional profiles of matched freelancers.
Experience
23 years (Germany: 18 years)
Position duration
1.3 years (Germany: 1.9 years)
Positions per freelancer
25 (Germany: 14)
Top business areas
Information Technology, Audit, Product Development
Top industries
Banking and Finance, Information Technology, Manufacturing
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
67% (Germany: 94%)
Master's degree or higher
33% (Germany: 57%)
Certifications per freelancer
14 (Germany: 5)
Most common languages
German, English, Portuguese
Speak two or more languages
100% (Germany: 99%)
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 Dusseldorf 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 Dusseldorf using Penetration Testing
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.
Penetration Testing experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Banking and Finance (100%)
- Information Technology (100%)
- Manufacturing (67%)
- Retail (67%)
- Healthcare (50%)
- Insurance (50%)
- Automotive (33%)
- Chemical (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Security Assessments
Penetration testing is an authorized security assessment that simulates realistic attacks against applications, infrastructure, networks or devices. Specialists combine automated scanning with manual investigation to expose exploitable weaknesses, validate business impact and document practical remediation steps. The work is designed to improve security without disrupting approved systems.
Testing Scope
A project may cover external attack surfaces, internal networks, web and mobile applications, APIs, cloud resources, wireless environments or social engineering scenarios. The scope defines targets, permissions, testing windows and rules of engagement before assessment begins. Clear boundaries protect operations and make results easier to act on.
Tools And Skills
Professionals work across reconnaissance, vulnerability analysis, exploitation, privilege escalation and reporting. Common tooling includes Burp Suite, Nmap, Metasploit, Wireshark and cloud-native security controls, supported by scripting and manual testing. Strong specialists also understand authentication, identity, containers, CI/CD pipelines, databases and secure coding.
When To Hire
Companies bring in freelance expertise before a major release, after a significant infrastructure change or when an independent view is needed. Typical triggers include:
- Validating a web application, API or mobile release
- Testing cloud migration and exposed services
- Investigating weaknesses found during an audit
- Preparing evidence for customer or compliance requirements
In Dusseldorf, specialists may support industrial, financial, retail and software organizations. Remote assessment works well for many environments, while on-site collaboration can help with internal networks, physical access scenarios or workshops.
Useful Deliverables
A professional engagement produces more than a scanner export. Expect an agreed test plan, evidence for confirmed findings, risk-based prioritization, an executive summary and a technical report with reproduction details. Many specialists also provide remediation workshops, retesting and guidance for integrating security checks into development and operations.
Quality Signals
Strong penetration testing professionals explain risk in business terms and distinguish confirmed vulnerabilities from theoretical concerns. They protect sensitive data, document every important action and communicate limits clearly. Look for experience with the relevant technology stack, disciplined reporting, careful authorization practices and the ability to work with technical and non-technical stakeholders in English or German.
Frequently asked questions
Not sure where to start with Penetration Testing? These answers cover the essentials.
Penetration testing is used to find and safely validate weaknesses that attackers could exploit. It can assess web applications, APIs, mobile apps, networks, cloud environments, wireless systems and connected devices.
Penetration testing combines automated discovery with manual analysis and controlled exploitation. Vulnerability scanning is useful for broad detection, but it may not confirm exploitability, business impact or attack paths between weaknesses.
A strong penetration testing specialist often understands secure coding, network protocols, identity and access management, cloud security, Linux, scripting and incident response. Knowledge of DevSecOps helps connect findings with practical fixes in delivery pipelines.
The right level depends on scope, system criticality and testing depth. Penetration testing for a small application may need a focused specialist, while a broad assessment across cloud, internal infrastructure and business logic calls for someone comfortable coordinating several testing areas.
Yes, much of penetration testing can be completed remotely through approved access, test accounts and secure communication. On-site work may be valuable for internal networks, wireless environments, physical access scenarios or workshops; Dusseldorf teams can combine both models when needed.
Companies commonly schedule penetration testing before a major launch, after material architecture changes, during cloud migration or when customer requirements call for independent validation. Retesting after remediation confirms whether important findings have been resolved.
Review how the specialist defines scope, handles authorization, protects evidence and explains risk. High-quality penetration testing produces reproducible findings, clear priorities, useful remediation guidance and a report that both technical and business stakeholders can understand.
Common penetration testing tools include Burp Suite, Nmap, Metasploit and Wireshark, alongside custom scripts and manual techniques. Tools support the assessment, but sound methodology, careful validation and knowledge of the target architecture determine the value of the result.
The average hourly rate of freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects is 115 €, which corresponds to a daily rate of about 921 € based on an 8-hour working day.
Of the freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects, 67% hold at least a Bachelor's degree and 33% hold at least a Master's degree.
On average, freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects have 23 years of professional experience, with a single engagement typically lasting around 1.3 years.
The most common languages among freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects are German (100%), English (100%), and Portuguese (17%).
The most common industries among freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects are Banking and Finance (100%), Information Technology (100%), and Manufacturing (67%).
The most common business areas among freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects are Information Technology (100%), Audit (83%), and Product Development (83%).
Main locations of FRATCH Experts, who have recently used Penetration Testing
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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Munich 
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Frankfurt Request a free demo
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Philipp Thomaschewski
FRATCH CEO
