Telnet Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used Telnet
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
Alex O.
Last position:
Contractor at Telefonica Germany GmbH & Co. OHG
- Data-analysis, Preparation, gathering and coordination of business requirements for retrieval of monthly- and long term (CLV – relevant) cost- and revenue-components per contract for a customer–base–grouping project (HUB–Project) for B2C-Postpaid-Controlling
- Concept and Implementation of cost- and revenue-KPIs calculation and corresponding CLV–reports (Oracle, Perl, SVN, MS SQL Server, MS Power BI, Serviceware Performance Analytics)
- Operational support of the HUB-Project – various ad-hoc reports, deployments, job-scheduling etc. (Oracle, SVN, BICSuite–Scheduler, DWSODA etc.)
- Analysis, implementation, retrieval and reporting of various physical and financial KPIs for B2P-Prepaid Business on an existing data-mart (Oracle, Perl)
Jürgen K.
Last position:
Interim Management / Business Succession – Process Analysis & Stakeholder Management
As part of the preparation and operational support of a business succession:
- Company analysis: Analysis of the overall economic, organizational and structural situation (current state, strengths/weaknesses, risk potentials)
- Process analysis: Recording and documentation of all relevant business processes (BPMN, UML) in the areas of management, finance, procurement, sales and operations
- Process optimization: Identification of weaknesses and inefficiencies, development and operational implementation of improvement measures
- Stakeholder management: Identification and analysis of all relevant internal and external stakeholders; structured communication and coordination with previous and future owners, shareholders and employees
- Change management: Supporting the workforce and management through the handover process; building acceptance and trust among all participants
- Governance & documentation: Creation and handover of structured operation manuals, process documentation and organizational handbook for the new business owner
- Risk & vulnerability analysis: Assessment of operational and strategic risks in the handover process and development of recommended actions
- Operational support: Interim takeover of leadership tasks; ensuring business continuity during the transition phase
John R.
Last position:
Consultant / Project Manager at DevOps Company
Datacenter setup, updates, connectivity and Disaster recovery setup.
Technologies used: VMware ESXi 8, DevOps, Office 365, VM, Hyper-V, Workplace, Power BI.
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.
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
Gerhard H.
Last position:
Application Developer at Lila Logistik
- Supported the application
- Developed applications in COBOL
- Extended customer and in-house requirements
- Assisted in ensuring smooth operation
- Methods/tools: COBOL, HP3000, MPE/XL operating system, IMAGE database, Whisper (development interface)
Charles J.
Last position:
Network Architect at RedGlobal GmbH
- Configuration of Dell switches, routers, and access points.
- Error analysis and resolution.
- Environment: Extreme, Cisco and Dell switches and routers, Extreme A3 NAC, Extreme CloudIQ.
Khyser M.
Last position:
Life Cycle Infrastructure Network Analyst at Hays AG
- On-site implementation and upgrade of the life cycle infrastructure for a global partner of a Hays customer.
- On-site implementation for international locations in APAC & AMER.
- Executed on-site life cycle infrastructure upgrades for sites IN-NDA, IN-MOX, US-CAX, US-MOT, CN-YAN, and IN-MOR according to customer requirements. This included project management, administration, network design, optimization, as well as planning and deploying redundant OM4 and OS2 fiber and redundant power systems.
- Designed, upgraded, and migrated data centers for the above sites, including international on-site travel to the USA and India.
- Led and oversaw the network team, providing remote and on-site support for cabling work.
- Created network documentation, including L2 and L3 Visio drawings, IP address planning, network patch plans, power plans, bayface layouts, access point layouts, ISP carrier layouts, data center planning, downtime planning and scheduling, hardware checklists, network device configuration, implementation, test plans, and proposal evaluations.
- Extensive experience with Cisco hardware, including switches (9200, 9300, 9400, 4500, 3850, and 2960 series), WLC (9800, 5505, 3504, and 2800 series APs), ASA (55xx series), and NG Firepower (1010, 1120).
- Maintained documentation, including NetBox, PRTG monitoring, RADIUS, DNS, DHCP, and KX handover sessions, troubleshooting & trainings.
- Life Cycle Technical Guide & Control
Tilmann S.
Last position:
Technical Expert, Software Architect at Rolls Royce Power Systems / MTU
- Created concepts and architecture for ECU diagnostics over CAN-Bus using UDS, PDX, ODX and safety paradigms
- Designed system deployment for EMS and documented using UML, Draw.io, MS Word, MS Visio and Confluence
- Developed process flows for development, planning, logistics, test & diagnostics in Scrum with Jira and MS Planner
- Communicated across multiple customer teams, conducted knowledge transfer
Stefan F.
Last position:
Project Management – Telecommunications at 1&1 Versatel
- Set of concurrent projects (BSS/OSS related)
Dirk P.
Last position:
IT systems and security engineer at Self-employed consulting engineer
Steffen L.
Last position:
Berdas Data Service UG
Harald W.
Last position:
ABAP, ABAP-OO Senior Developer, Logistics Senior Consultant at Self-employed
Discover over 15,000 top freelancers
Statistics of experts using Telnet
Aggregated from the professional profiles of matched freelancers.
Experience
34 years
Position duration
3.1 years
Positions per freelancer
18
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Banking and Finance
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
73%
Master's degree or higher
36%
Certifications per freelancer
6
Most common languages
German, English, Spanish
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 Telnet
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.
Telnet 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 (93%)
- Manufacturing (64%)
- Banking and Finance (57%)
- Telecommunication (57%)
- Energy (43%)
- Retail (43%)
- Insurance (36%)
- Professional Services (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Legacy protocol connectivity and network diagnostics
Telnet provides a bidirectional, interactive text-oriented communication facility over transmission control protocol connections via RFC 854. Modern environments rely on it primarily to test raw TCP socket connectivity, query port availability, and issue manual requests to services such as SMTP, HTTP, or custom text daemons.
Industrial and operational technology environments
Many manufacturing plants, logistics hubs, and embedded systems across Germany still use serial terminal servers and programmable logic controllers that speak raw Telnet. Specialists maintain these interfaces, ensure continuous communication across air-gapped automation networks, and prevent disruption to physical production lines.
Core technical competencies and tooling
- Packet inspection and protocol analysis using Wireshark and tcpdump
- Automation scripting with Expect, Python Telnetlib, and Netmiko
- Serial-to-Ethernet device configuration using Digi and Moxa hardware
- Network socket debugging and verification with netcat and socat
Secure migration and modernization initiatives
Because Telnet transmits authentication credentials and commands in clear text, organizations systematically replace it with SSH, TLS wrappers, and secure bastion hosts. Specialists map all active Telnet endpoints, evaluate firmware limitations on legacy hardware, and implement encrypted jump hosts or IPsec tunnels where hardware upgrades are impossible.
When organizations bring in specialized freelance support
- Decommissioning insecure management interfaces across enterprise switch fleets
- Auditing SCADA and operational infrastructure for regulatory compliance
- Troubleshooting silent communication drops between legacy terminals and host systems
- Scripting automated configuration rollouts across aging network gear
Characteristics of proficient networking specialists
A capable specialist understands low-level TCP/IP behavior, terminal emulation standards like VT100 and ANSI, and terminal negotiation options. They prioritize security isolation, distinguish between harmless testing and critical production exposure, and communicate fluently in English and German for seamless cross-functional team coordination.
Frequently asked questions
The facts hiring teams ask for most often when it comes to Telnet.
While Telnet has been largely superseded by SSH for secure terminal access, older enterprise switches, serial consoles, and industrial equipment lack the hardware resources to run cryptographic routines. Outside device management, network professionals rely on the utility daily to test raw TCP port reachability without protocol overhead.
A qualified professional isolates Telnet traffic within segmented management VLANs, out-of-band networks, or dedicated VPN tunnels. Where client software cannot be modified, they introduce reverse proxies, TLS tunnels, or terminal servers that encrypt data before it traverses wider internal networks.
Automation of Telnet sessions traditionally uses Expect scripts to match terminal prompts and supply keystrokes. Contemporary workflows leverage Python libraries like Netmiko or Paramiko to orchestrate commands across heterogeneous legacy equipment reliably.
Seek specialists with deep knowledge of TCP/IP, Wireshark packet capture, serial console server administration, and network access control lists. Experience with network migration and familiarity with enterprise hardware lines from vendors like Cisco, HP, and Moxa is essential.
Industrial regulations and BSI IT-Grundschutz standards in Germany strictly advise against unencrypted remote administration protocols like Telnet across production environments. Freelancers help organizations identify non-compliant nodes, apply hardening standards, and establish compliant transitional architectures.
Automating Telnet in testing pipelines is possible but requires handling timing issues, unexpected control characters, and buffer overflows. Skilled specialists build resilient wrapper scripts that capture return codes and handle dropped socket connections gracefully.
Most diagnostic, automation, and configuration tasks involving Telnet can be executed remotely via secure VPNs and jump hosts. Occasional on-site presence may be necessary when physical console cables or air-gapped industrial plant controllers require direct connection.
Evaluate how the candidate diagnoses connection timeouts and character-echo anomalies during a simulated terminal session. An experienced Telnet professional will instinctively explain socket handshakes, interpret packet captures, and present concrete strategies for transitioning insecure endpoints to modern encrypted protocols.
The average hourly rate of freelancers in Germany who have used Telnet in their recent projects is 107 €, which corresponds to a daily rate of about 857 € based on an 8-hour working day.
Of the freelancers in Germany who have used Telnet in their recent projects, 73% hold at least a Bachelor's degree and 36% hold at least a Master's degree.
On average, freelancers in Germany who have used Telnet in their recent projects have 34 years of professional experience, with a single engagement typically lasting around 3.1 years.
The most common languages among freelancers in Germany who have used Telnet in their recent projects are German (100%), English (100%), and Spanish (14%).
The most common industries among freelancers in Germany who have used Telnet in their recent projects are Information Technology (93%), Manufacturing (64%), and Banking and Finance (57%).
The most common business areas among freelancers in Germany who have used Telnet in their recent projects are Information Technology (100%), Product Development (86%), and Project Management (79%).
Main locations of FRATCH Experts, who have recently used Telnet
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
