X.25 Experts in Germany
in minutes from over 15,000 CVs with the power of AIHire experts who keep X.25 links stable, maintain PAD and virtual circuits, and support legacy WAN and host connectivity. FRATCH matches you fast with vetted, available freelancers who know the protocol stack and the systems that still depend on it.
Meet FRATCH Experts in Germany, who have recently used X.25
Ulf H.
Last position:
Configuration Manager (Interim) at In-house Development
- Requirements analysis and replacement of local SharePoint as CMDB with open source NetBox to prepare for deploying Cisco ACI (SD-WAN) with Microsoft Azure
- Coordination with systems like Checkmk and Grasp
- Introduction and coordination of cmdbsyncer as CMDB data hub; further development of the syncer with Kuhn & Ruess GmbH
- Implementation of SNMPv3 on AIX LPAR/VIO, Linux, Windows, SAN/storage, network components (Cisco switches, F5 load balancers, Palo Alto and CheckPoint firewalls, iLO boards)
- Deployment and further development of the network scanner JDisc in cooperation with the vendor (Utimaco HSMs, Linux detection)
- Integration of NetBox, JDisc, and cmdbsyncer into the infrastructure using Docker containers
- End-user training: preparation, creation of materials, and delivery
- Creation of data flow and network diagrams
- Population and planning of IPv4/IPv6 with NetBox including VLAN import
- Dual-stack setup of servers and clients with IPv4 and IPv6
- Connection of REST interfaces for Checkmk, JDisc, vSphere, HMC, i-doit, NetBox Software: Confluence, Jira, MS Office 365, Teams, i-doit, NetBox, JDisc, cmdbsyncer, DB Visualizer, vSphere, HMC
Mustafa K.
Last position:
Senior Network Design and Engineer at Helaba
Designed and specified the technical network integration of a new business-critical application system (MUREX) in the capital markets area in a complex interface and outsourcing environment.
Created component specifications, a catalog of measures and an implementation plan.
Ensured proper integration of the developed results in line with the bank’s framework: IT compliance, IT security, change and release management.
Selected and integrated a new service provider for the bank; moved critical bank applications to the provider.
Designed, implemented and supported the new Cisco network and Fortinet security setup at the service provider data center.
Acted as technical interface between the bank, service providers and consulting partners.
Supported and further developed the network and security infrastructure (clients, servers, networks); performed error analysis and implemented solutions within agreed service levels.
Analyzed and diagnosed all security and network failures, glitches and malfunctions.
Initiated continuous improvements to ensure efficient resource use and acceptable response times for users.
Provided network support in a financial services organization and prepared operational changes on production banking network infrastructure for both large and small projects within strict change management discipline.
Designed, defined, tested, governed and improved engineering standards.
Performed the role of network architect for medium to large projects involving team resources.
André G.
Last position:
IT Consulting Project Management / Engineering Subproject Management at T-Systems (on assignment for government agencies)
- Projects for federal networks (NdB).
- CR management, EoL change requests, design and documentation according to ITSCM.
- Data center planning.
- Project management and engineering subproject management.
- Software development for virtual server environments according to BSI.
Georg D.
Last position:
Senior Project Manager at Apleona GmbH
- Project review, restructuring, and PM for the migration of a total of 12,000 Windows workplace systems (650 applications) from SCCM and Empirum/Matrix42 to MS-Intune after a merger.
- Took over a heavily delayed / not ideally managed project in the role of the "firefighter".
- Completely revised and adjusted/updated the planning of the customer and the involved service provider.
- Introduced planning baselining as well as tracking/mitigation of current risks.
- Introduced an efficient, partially automated planning/reporting interface between MS Project Planning (service provider) and Jira (customer).
- Restructured meetings to increase efficiency and remove redundant appointments.
- Completed the analysis and design phase and created base data for migrations from heterogeneous systems of the two merged companies.
- Started the User Acceptance Test (UAT).
- Technologies: MS Autopilot, Zero Touch.
Andreas W.
Last position:
Freelancer at Infrafibre Networks GmbH
- Assessing the current status (planning stage / rollout status) of the so-called inter-polygon routes
- Creating an end-to-end project plan for the individual routes, considering active and passive components and tasks
- Monitoring and controlling the implementation of the plan
- Optimizing the chosen network architecture
- Creating network and splice diagrams
Mike B.
Last position:
System and Endpoint Hardening at CLAAS
- Evaluating and assessing the current state
- Preparing and conducting security audits
- Vulnerability characterization and risk analysis
- Assessing, coordinating and transforming identified vulnerabilities into target states
- Coordinating stakeholder interests
- Developing and implementing IT security strategy for OT and IoT (continuous risk assessment and risk management, awareness, multi-layered security solutions, regular security audits, access restrictions)
- Organizational and technical documentation, presentations and workshops
- Skills: Qualys, Splunk, Nessus, QRadar, National Vulnerability Database (NVD / NIST), Open Worldwide Application Security Project (OWASP), OT, CERT/CC, BSI IT-Grundschutz catalogs, ISO 27001, MITRE ATT&CK, Center for Internet Security (CIS), GitHub, Active Directory, PowerShell, Symantec Endpoint Protection, Microsoft Azure and Office365 App Security, ITSM
Dirk E.
Last position:
Senior IT Engineer at IT service provider
- Planning, concept design, re-design
- Pre-sales support
- Project support according to PRINCE2
- Setup of a CMDB
- Implementation of communication processes
Discover over 15,000 top freelancers
Statistics of experts using X.25
Aggregated from the professional profiles of matched freelancers.
Experience
38 years
Position duration
2.2 years
Positions per freelancer
24
Top business areas
Information Technology, Operations, Project Management
Top industries
Information Technology, Telecommunication, Energy
Certification focus areas
Information Technology, Project Management, Product Development
Bachelor's degree or higher
40%
Master's degree or higher
20%
Doctorate
20%
Certifications per freelancer
9
Most common languages
German, English, French
Speak two or more languages
100%
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 X.25
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.
X.25 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 (86%)
- Telecommunication (71%)
- Energy (57%)
- Banking and Finance (57%)
- Professional Services (57%)
- Government and Administration (57%)
- Aerospace and Defense (43%)
- Transportation (43%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
X.25 basics
X.25 is a packet-switched networking standard used for reliable data transport over public and private wide-area networks. It is often seen in legacy enterprise, telecom, banking, transport, and industrial systems that still depend on stable host-to-host communication.
Where it is used
- Host access to mainframe and transaction systems
- WAN links for older routers, switches, and terminals
- Payment, logistics, and control networks with long-lived infrastructure
- Gateway work between X.25 and IP-based environments
Common components
Work around X.25 often involves PADs, virtual circuits, DTE and DCE setup, and vendor-specific network gear. Many specialists also handle adjacent layers such as leased lines, serial interfaces, routing handoffs, and monitoring for packet loss or link faults.
Why companies bring in freelancers
Companies usually need X.25 experts for migration, troubleshooting, documentation, or urgent support on systems no longer covered by in-house teams. A freelancer can trace connection issues, decode old configurations, and keep critical services running while a replacement path is planned.
What strong specialists know
- X.25 call setup, packet handling, and addressing
- Legacy modem, PAD, and terminal integration
- Migration planning toward IP, VPN, or managed circuits
- Clear diagnostics on old network stacks and vendor gear
Germany projects and collaboration
In Germany, X.25 work often appears in regulated or operationally sensitive environments where downtime is costly and documentation is thin. Some tasks can be handled remotely, but on-site access is still useful when physical lines, local hardware, or confidential host systems must be checked directly.
Frequently asked questions
Everything clients usually want to know about X.25, in one place.
X.25 is used to keep older packet-switched connections alive in environments that still depend on host access, terminal traffic, and dedicated WAN links. It often appears in banking, transport, telecom, and industrial systems where the surrounding infrastructure was built long before IP became standard.
X.25 was designed for predictable delivery over noisy lines and uses network-managed virtual circuits. TCP/IP is more flexible and is now the default for most modern systems, while X.25 remains relevant where legacy devices, old host interfaces, or established service contracts still depend on it.
Bring in a X.25 specialist when a link is unstable, a legacy site must stay online, or a migration needs to be planned without breaking an old host connection. Companies also hire for documentation cleanup, vendor coordination, and bridging X.25 with newer network services.
A strong X.25 freelancer usually understands serial lines, PAD configuration, routing handoffs, and basic telecom troubleshooting. Experience with mainframe connectivity, terminal protocols, and legacy network documentation is also very useful because the work rarely stops at the protocol itself.
Yes, much of X.25 work can be done remotely if the line is reachable and the configuration is accessible. For sites in Germany, remote support is often enough for analysis and planning, but on-site work helps when hardware, cabling, or local access control is part of the problem.
Look for someone who can explain call setup, virtual circuits, PAD behavior, and common failure points in plain language. A solid X.25 expert also writes clear handover notes, knows how to work with old vendor equipment, and can show a sensible plan for keeping the service stable.
Typical X.25 deliverables include diagnostics, configuration updates, migration notes, test plans, and documentation for support teams. In larger environments, the freelancer may also produce cutover steps, fallback procedures, and interface maps for connected legacy systems.
Yes, X.25 is often still referred to as CCITT X.25, especially in older documentation and vendor manuals. You may also see it tied to PADs or to specific network equipment, but the core protocol and its legacy use cases are the same.
The average hourly rate of freelancers in Germany who have used X.25 in their recent projects is 103 €, which corresponds to a daily rate of about 824 € based on an 8-hour working day.
Of the freelancers in Germany who have used X.25 in their recent projects, 40% hold at least a Bachelor's degree, 20% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers in Germany who have used X.25 in their recent projects have 38 years of professional experience, with a single engagement typically lasting around 2.2 years.
The most common languages among freelancers in Germany who have used X.25 in their recent projects are German (100%), English (100%), and French (29%).
The most common industries among freelancers in Germany who have used X.25 in their recent projects are Information Technology (86%), Telecommunication (71%), and Energy (57%).
The most common business areas among freelancers in Germany who have used X.25 in their recent projects are Information Technology (100%), Operations (100%), and Project Management (100%).
Main locations of FRATCH Experts, who have recently used X.25
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
