Penetration Testing Experts in Dusseldorf
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Meet FRATCH Experts in Dusseldorf, who have recently used Penetration Testing
Rudolf Eggelbusch
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-department collaboration with other specialist teams for operations, further development and reporting.
Firewall vulnerability analysis.
Firewall rule approvals.
Troubleshooting IP communication issues in the network and firewall infrastructure.
Security-critical IT infrastructure, processing of personal data, compliance with legal regulations.
Products: Palo Alto Networks Firewalls, Cisco ACI, Checkpoint Firewalls, F5
Technologies: SDN, SDWAN, Cisco EPIC, Cisco ACI
Alicja Wilczek
Last position:
Integrated security and emergency documentation for a 24/7 logistics company at Medium-sized logistics company
- Creation of complete bilingual (DE/EN) security and emergency documentation: Business Continuity Plan / Disaster Recovery Plan, Incident Response Plan v2.0 with four case-specific playbooks (PICERL), access control policy, vulnerability management policy, business resilience programme, risk governance plan
- Consolidation into an integrated emergency handbook (12 chapters) with immediate checklists for six emergency scenarios, a prioritized action table, and a formal approval structure
- Review of a penetration test report (Greenbone) with complete remediation of all findings and formal risk acceptance of a residual risk with documented compensating control
- Review and documentation of NIS2 and HinSchG applicability, including the legal reasoning for non-applicability
Thorsten Otremba
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
Nikolaus Betzler
Last position:
ICT Risk Management and Information Security at B. Metzler seel. Sohn & Co. AG
- Independently develop policies, guidelines, and frameworks for ICT risk management and information security
- Advise business units on ICT risk management and information security
- Further develop the ICT risk management framework that governs the identification, assessment, and control of ICT risks
- Evaluate the Information Security Management System (ISMS) and adjust it for new challenges
- Conduct risk analyses to identify and assess potential ICT risks and information security risks for the Metzler Group
- Advise on defining and implementing measures to reduce risks and improve the resilience of ICT systems
- Advise on ensuring compliance with relevant internal and external regulatory requirements (MaRisk, DORA, BAIT, BSI IT baseline protection, ISMS, ISO 27001, ISO 42001, ISO 27005, BCM ISO 22301)
- Advise on internal and cross-functional projects (SAP DORA compliance, Target2, Section 8a BSI Act)
Jacqueline Haefke
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
Tobias Buse
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
Discover over 15,000 top freelancers
Statistics of experts using Penetration Testing
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 17 years)
Position duration
1.3 years (Germany: 1.9 years)
Positions per freelancer
20 (Germany: 13)
Top business areas
Information Technology, Project Management, Quality Assurance
Top industries
Information Technology, Banking and Finance, Manufacturing
Certification focus areas
Information Technology, Project Management, Audit
Bachelor's degree or higher
67% (Germany: 96%)
Master's degree or higher
67% (Germany: 60%)
Certifications per freelancer
5
Most common languages
German, English, Spanish
Speak two or more languages
100% (Germany: 99%)
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 Dusseldorf 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 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Scope
Penetration testing, often called pentesting or pen testing, is a controlled security exercise that looks for real weaknesses before attackers do. Experts simulate abuse of web apps, APIs, mobile apps, networks, cloud accounts, and internal systems. The result is a practical view of exposure, not a checklist.
What experts deliver
Strong professionals turn findings into work a team can act on quickly.
- Web, API, and mobile application tests
- Internal and external network assessments
- Cloud and identity testing
- Clear exploit paths and risk notes
- Fix validation after remediation
Tooling
The ecosystem includes scanners, proxy tools, exploit frameworks, packet analysis, and manual testing methods. Skilled experts know when to use automated checks and when to go deeper by hand. They also understand how to document evidence so product, security, and operations teams can reproduce the issue.
When to bring help
Companies usually bring in freelance penetration testing specialists before a launch, after major code changes, or after infrastructure changes. It also helps when internal teams need a fresh review, an independent report, or extra capacity for a short security window. In Dusseldorf, this often fits teams that work with regulated data, e-commerce, industrial systems, or partner-heavy platforms.
What strong specialists do
Good penetration testing experts stay precise, calm, and methodical. They map the attack surface, test safely, and separate real flaws from noise. Strong work includes solid reporting, proof of impact, and advice that fits the actual stack, not generic security advice.
Collaboration
Freelance experts can work remotely from documentation, access rules, and test accounts, or on-site when network segments, office systems, or internal stakeholders make that easier. For Dusseldorf teams, English is often enough for delivery, but clear written findings matter most. The best engagements define scope, test windows, and escalation paths before any testing starts.
Frequently asked questions
Not sure where to start with Penetration Testing? These answers cover the essentials.
Penetration testing is a controlled attempt to find exploitable weaknesses in a real system. It can cover web applications, APIs, mobile apps, cloud access, internal networks, and identity controls. The goal is to show what an attacker could reach and how far they could go.
No. A pentest uses scanning as one input, but it goes further with manual validation, chained attack paths, and proof of impact. A scan may flag possible issues; penetration testing confirms which ones matter and how they can be used.
Bring in Penetration Testing specialists before a release, after a major change, or when an independent security review is needed. It also makes sense when the internal team lacks time for deep manual testing. In Dusseldorf, it is often a good fit for product teams that need focused support without adding long-term headcount.
A strong penetration testing professional usually understands web security, networking, authentication flows, cloud services, and basic scripting. Clear reporting matters just as much as technical depth. Experience with remediation advice is valuable because it helps teams fix issues faster.
It depends on scope. A narrow web app review may only need one focused specialist, while a broad engagement across cloud, identity, and internal systems needs deeper and wider skill coverage. The key is fit: the person should match the attack surface, not just the label on the profile.
Yes, most penetration testing work can be done remotely with the right access, test accounts, and written scope. On-site work is useful when office networks, internal devices, or physical constraints are part of the test. Many Dusseldorf companies use a hybrid setup so the specialist can review results with local stakeholders in person.
Look for clear proof, realistic impact, and fixes that fit the system. A good pen testing report separates confirmed issues from false leads and explains how the problem was reached. It should also be specific enough for engineering and security teams to reproduce and verify the result.
A pentest specialist should ask for scope, target assets, time windows, rules of engagement, and contact paths for urgent findings. It helps to know whether the focus is web, API, cloud, or internal infrastructure. Good preparation avoids surprises and keeps testing safe and useful.
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 67% hold at least a Master's degree.
On average, freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects have 22 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 Spanish (17%).
The most common industries among freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects are Information Technology (100%), Banking and Finance (83%), and Manufacturing (83%).
The most common business areas among freelancers in Dusseldorf, Germany who have used Penetration Testing in their recent projects are Information Technology (100%), Project Management (83%), and Quality Assurance (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.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt Request a free demo
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Philipp Thomaschewski
FRATCH CEO
