Nmap Experts in Germany
for precise network discovery, matched with vetted freelancers in minutesHire experts who map networks, validate exposed services and support security assessments with Nmap, NSE scripts and related Linux tooling. FRATCH matches you quickly and precisely with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used Nmap
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-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
Raj U.
Last position:
Courier / Operations Support at Closer Go Germany GmbH
- Work within time-critical operating procedures; coordinate issues with customers, partners and central support.
- Maintain reliable handovers and concise incident communication when service, equipment or routing issues occur.
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.
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.
Stanislaus S.
Last position:
Security Consultant at Rohde & Schwarz AG at Star Labs GmbH
- Worked on FPGA enhanced network encryption device with secure boot, TPM2.0 and smart card integration for BSI approved usage with Post Quantum Cryptography
- Developed and audited Linux drivers
- Collaborated using GitLab, Gerrit, Confluence and Jira
- Technologies: C, C++, Secure Boot
Maryam M.
Last position:
AI Red Team Engineer at Applause
- Performed security assessments and penetration testing on Microsoft AI models for text, image, and video generation.
- Conducted prompt injection attacks through diverse input vectors, including crafted text, steganographic images, and manipulated visual elements (e.g., varying opacity and embedded content).
Jin-Ho Y.
Last position:
Server Migration Consultant at Unknown Client
- Linux server migrations: planning and execution of the migration with SLES Linux deployment of VMs in VMware 8.0
- Guiding colleagues on configuring Linux VMs with vSphere Auto Deploy
- Application operations: ensuring smooth operation of applications on migrated servers
- Operations manuals: revising existing manuals, updating and creating new ones as needed
- Reviewing service offers: adjusting and optimizing service offerings of external providers
- Logistics software, Red Hat Linux, Ansible, Confluence / Jira
Mevlüt Y.
Last position:
Project at Physical Adversarial Attacks Using Fan-Based Holographic Projections
- Planned and executed black-box adversarial testing of traffic-sign computer-vision pipelines; produced a threat model and attack-surface analysis for safety-critical scenarios
- Built a programmable hardware proof of concept using a holographic POV fan and a repeatable test harness to run real-time experiments and collect evidence for vulnerability assessment
- Quantified misclassification across lighting, distance, and angle, achieving up to 90% untargeted misclassification; delivered steps to reproduce, PoCs, and prioritized mitigations, and documented limitations and residual risk
Arndt S.
Last position:
Information Security Officer according to TISAX at Automotive Supplier
Maxim A.
Last position:
External Lecturer (Privatdozent) at Technische Universität Darmstadt
Supervised the course Software Engineering for Bachelor students and delivered lectures.
Seyed Farhad M.
Last position:
Senior Product Security Engineer at Delivery Hero
- Developed a custom tool using the Mistral 7B LLM to scan, validate and report security vulnerabilities.
- Security tested AI agents, bots, and other LLMs with a focus on prompt injection, model inversion, data poisoning, EDR/AV bypass and evasion techniques, membership inference, model evasion, overfitting to malicious inputs and contextual manipulation.
- Onboarded repositories to SAST solutions for security scanning, implemented secrets scanning, DAST, SCA, and utilized ZAP for DAST in CI/CD pipelines.
- Engaged in security awareness trainings, developed CTF challenges and training materials to enhance developer security knowledge.
- Planned and executed bi-annual red teaming operations based on the MITRE ATT&CK framework and led internal and external pentests based on the OWASP Top 10 framework for 70+ applications worldwide, resulting in detection, reporting, and remediation of hundreds of vulnerabilities.
- Triaged HackerOne reports.
Abdelhak M.
Last position:
Network Architect at Bechtle Managed Services GmbH
- Created as-is network documentation for a Bechtle customer
- Analyzed existing configurations and adjusted them
- Advised on Fortinet and Check Point products
- Troubleshot complex routing, switching and application issues
- Tools: MS Azure, FortiManager, Cisco Nexus & Catalyst, Cisco WLAN Controller, Citrix Netscaler SD-WAN, MS Visio, Checkpoint VSX, Wireshark
Daniel W.
Last position:
Web Developer and Linux System Administrator at Freelancer
- Consultation on setting up a web server with Apache2 and PHP FPM and an email server with Postfix and Dovecot for Learn4good Ltd.
- Programmed website under-construction.bermudafunk.org in collaboration with a designer and client for bermuda.funk Freies Radio Rhein-Neckar e.V.
- Consultation and network setup on-site including switches, routers, Wi-Fi, network monitoring, firewalls, and installation of sFirm banking software for The Swiss Quality Consulting GmbH
- Consultation on website management and development, email migration from Outlook to cPanel, image optimization, and setting up Square payments for The JABA Group Ltd.
- MS365 consultation, email setup, and document synchronization for PK reno GmbH
- Development and integration of WooCommerce plugins, B2B shop setup, and custom shipping label export for Nurso GmbH
- Minor changes implementation for existing Kirby system for Julia Rautenhaus
- Analysis and fixing of WordPress website after broken updates for Alina Frey
- Linux server hardening, updates, and throughput optimization for 3proxy servers for Lietparkas UAB
- Malware removal from hacked WordPress website for Timo Horn
- Cold email outreach system setup with Postfix and Dovecot and script development for Aman Ketebo
- Customized Docker container creation based on AlmaLinux with ImageMagick 7 and consultation on Docker installation for Henry Hook
- Plesk hosting environment management, code fixes, external supplier integration, and content support for First Class Corporation
- Shopify theme customization, feature development, and payment integration consultation for Youro GmbH
- Intel camera support on Ubuntu after upgrade for Making stories with a lesson
- NginX configuration support on Windows Servers for a NodeJS application for ARMBRUSTER empiric it
- Competitor email verification mechanism analysis for Casey Monaghan
- Plugin development and API connector to Inswitch for freelance website payments for Mediaquotes
- Private XMPP server setup on Raspberry Pi for Antonio Codespoti
- WordPress website recovery after broken plugin update for A & R Tennis
- Microsoft account and Office/Outlook migration support for Prof. Dr. Hanns-Ferdinand Müller
- Customization and performance optimization of client websites for sk.design
- VPN configuration and hacked server cleanup for Xisio Informationssysteme GmbH
- PeerTube server setup and maintenance for Lupin Vondosky
- Lightweight WordPress booking solution programming tailored to client needs for AP Online Marketing
- Code refactoring, bug fixing, and business/technical consultation for RentAfrika
- SellYourSaas setup and deployment infrastructure configuration for I-Motion SARL
- Server, email, GitLab, project management, password management software, and VPNs setup and maintenance for Markus Sattler
- Custom development for over 10 WordPress projects for TOGEMAXX media & webdesign
- WooCommerce shop setup and FTP supplier product import development for SERVOMED GmbH
- Open-source contributions to Whonix components, iptables to nftables migration, shutdown inhibition investigation, and IPv6 support addition for ENCRYPTED SUPPORT LP
- Custom feature development, performance optimization, update management, email delivery support, plugin bug fixes, and translations for KU Europe GmbH
- Custom plugin/theme development, server infrastructure management, support for 100+ WordPress websites, API connector development, deployment script setup, VPN configuration, DNS, email, and web hosting support for giftGRÜN GmbH
- Server setup, web and email hosting migration, and website maintenance and development for Eisbaden.de
- Custom WordPress and Shopify development for EcomPlus GmbH
- Hacked website recovery and hosting migration for Be Brave gUG
- Finalization of development tasks left incomplete by another developer for Medicare Consulting GmbH
- Recovery of unbootable hacked server for SK-Software, Entwicklung & Beratung
Hobby projects:
- Development and running of a web chat application
- Development and running of an email service
- Development and running of a darknet link list
- Development and running of a darknet web hosting platform
- Code contributions to open source projects such as LMMS, Audacity, and Ubuntu
Valentina L.
Last position:
Parental Break & Professional Development at Parental Break & Professional Development
- Embraced full-time caregiving while achieving B2 German fluency
- Advanced cybersecurity skills through hands-on training at Masterschool
- Worked with AI & LLM tools: ChatGPT, Claude, Gemini, prompt engineering basics, LLMs, AI-assisted writing tools
Vishnu K.
Last position:
Red Team Engineer (Professional Management Level VI) at Schwarz Group (Lidl, Kaufland, Stackit)
- Developed Red Team infrastructure for real-world attack simulations using Sliver C2 and custom tools
- Executed advanced Red Team operations, integrating AI/LLM security research for prompt injection attacks
- Conducted comprehensive breach assessment attacks and vulnerability assessments across enterprise infrastructure
- Performed root cause analysis and purple team exercises, generating executive-level reports
- Lead LLM red teaming initiatives to improve AI model security for GPT-4, Mistral, and internal GenAI models
Discover over 15,000 top freelancers
Statistics of experts using Nmap
Aggregated from the professional profiles of matched freelancers.
Experience
15 years
Position duration
2.7 years
Positions per freelancer
11
Top business areas
Information Technology, Quality Assurance, Operations
Top industries
Information Technology, Banking and Finance, Transportation
Certification focus areas
Information Technology, Quality Assurance, Audit
Bachelor's degree or higher
80%
Master's degree or higher
50%
Doctorate
10%
Certifications per freelancer
5
Most common languages
English, German, Spanish
Speak two or more languages
95%
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Germany 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 Germany using Nmap
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Nmap 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 (45%)
- Transportation (36%)
- Manufacturing (36%)
- Professional Services (36%)
- Telecommunication (32%)
- Automotive (27%)
- Retail (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Network Discovery
Nmap, short for Network Mapper, is an open-source tool for discovering hosts and services on computer networks. It identifies reachable systems, open ports, service versions and operating system signals through controlled probes. Companies use its results to understand network exposure before security testing, migration or operational change.
Scanning Capabilities
Nmap supports host discovery, port scanning, service detection, version detection and operating system fingerprinting. Specialists choose scan methods carefully to balance coverage, speed and operational safety. Results can be exported for review or integrated into assessment workflows through XML, grepable output and normal text reports.
NSE And Tooling
The Nmap Scripting Engine extends scans with scripts for service checks, vulnerability research, authentication testing and configuration review. Strong professionals work comfortably with Linux, TCP/IP, DNS, firewalls, routing and shell automation. They may also connect Nmap findings with tools such as Wireshark, OpenVAS, Nessus or SIEM systems.
Practical Use Cases
- Inventory hosts and exposed services across internal networks
- Validate firewall rules, segmentation and attack surface changes
- Support penetration tests and vulnerability assessments
- Check cloud, data centre and hybrid network visibility
- Produce evidence for remediation and security reviews
Nmap is useful in infrastructure audits, incident response and release checks. In Germany, specialists may support manufacturers, financial organisations, healthcare providers and public-sector teams, remotely or alongside local security and infrastructure groups.
When Expertise Helps
Companies bring in freelance Nmap expertise when an assessment needs impartial coverage, when network documentation is incomplete or when internal teams lack time for repeatable scanning. Specialists can define safe scan scopes, interpret ambiguous results and separate genuine exposure from filtered or misleading responses. They also help turn raw findings into actions for infrastructure and security teams.
Quality Signals
A capable professional treats Nmap as an assessment instrument rather than a button to press. They confirm authorisation, document scope, account for rate limits and fragile systems, and explain the limits of fingerprinting. Look for clear reporting, reproducible commands, careful NSE selection and the ability to connect technical findings with business risk. For German projects, agree early on remote access, on-site needs and the working language.
Frequently asked questions
Curious about Nmap? Here are the answers that come up again and again.
Nmap is used to discover hosts, identify open ports and determine which services may be reachable on a network. Companies use it for asset inventory, firewall validation, segmentation checks, penetration-test support and incident investigation.
Nmap focuses first on network discovery, port states and service identification, while vulnerability scanners typically add broader checks against known weaknesses. Nmap can extend its work with NSE scripts, but it does not replace a full vulnerability-management process.
An Nmap specialist should understand TCP/IP, DNS, routing, firewalls, Linux and common network services. Experience with tools such as Wireshark, Nessus, OpenVAS, cloud networking and SIEM workflows helps turn scan output into useful security decisions.
The right Nmap experience depends on scope, not a fixed duration. A simple inventory needs disciplined scanning and reporting, while a segmented enterprise assessment requires strong knowledge of authorisation, scan impact, service interpretation and remediation planning.
Nmap work can often be completed remotely when the specialist receives approved access through a secure jump host, VPN or controlled testing environment. On-site collaboration may help with restricted networks, sensitive systems or workshops, and German or English working requirements should be agreed in advance.
Before using Nmap, define written authorisation, target ranges, excluded systems, scan windows and escalation contacts. Aggressive probes or scripts can create noise and may affect fragile services, so an expert should select methods that fit the environment.
Good Nmap work includes a clear scope, reproducible commands, explained limitations and evidence for each important finding. The report should distinguish filtered ports, detected services and confirmed weaknesses, then link relevant observations to practical remediation.
Nmap can help review reachable services in cloud and hybrid environments, but results depend on routing, security groups, network access controls and provider boundaries. A specialist should combine scans with cloud inventory and configuration review rather than treating one scan as a complete asset picture.
The average hourly rate of freelancers in Germany who have used Nmap in their recent projects is 79 €, which corresponds to a daily rate of about 634 € based on an 8-hour working day.
Of the freelancers in Germany who have used Nmap in their recent projects, 80% hold at least a Bachelor's degree, 50% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers in Germany who have used Nmap in their recent projects have 15 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Germany who have used Nmap in their recent projects are English (100%), German (95%), and Spanish (18%).
The most common industries among freelancers in Germany who have used Nmap in their recent projects are Information Technology (95%), Banking and Finance (45%), and Transportation (36%).
The most common business areas among freelancers in Germany who have used Nmap in their recent projects are Information Technology (100%), Quality Assurance (59%), and Operations (50%).
Main locations of FRATCH Experts, who have recently used Nmap
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
