TCP/IP Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used TCP/IP
Hendrik Wagner
Last position:
Software Test and Maintenance Support at Anton Paar ProveTec GmbH
- Add/create test specifications
- Conduct regression tests
- Conduct release tests
- Analyze Jira tickets
- Identify software defects and fix them with C#
Victor Omojoye
Last position:
AI Training Engineer at Confidential AI Research Client
- Codebase Evaluation & Problem Design: Designed and stress-tested complex software engineering problems against large open-source Python codebases (including pandas), requiring deep context acquisition and architectural understanding to produce well-scoped, realistic problem statements aligned to strict correctness guidelines.
- Agent Failure Analysis: Assessed LLM coding agent solutions for correctness and completeness, identifying meaningful failures across edge case handling, dtype behaviour, and multi-column NaN propagation logic; documented findings with precision for downstream evaluation use.
- Programmatic Test Suite Development: Authored comprehensive pytest suites to programmatically verify agent-generated solutions against defined requirements, with deliberate coverage of boundary conditions and failure modes not caught by naive implementations.
- Containerised Environment Engineering: Built and debugged Docker environments for reproducible agent execution, including git-based repository provisioning, dependency pinning with npm ci, and multi-stage Dockerfile authoring across Linux-based containers.
Raj Udani
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.
Ola Van Dunen
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Nick Reichardt
Last position:
IT Onside Support at Public Administration
- Mobile Device Management (MDM) for iOS devices (iPads, iPhones)
- Management, configuration and rollout of policies, apps and security measures
- eSIM setup & management as well as management of mobile plans and contracts
- User management (create, block, delete) in the SecurePIM security solution
- Device registration, preparation and setup of devices with Windows 10/11 and peripherals
- 1st & 2nd level support and handling of IT requests via the ticket system
- Troubleshooting, fault isolation and repair of devices
- Creating and maintaining guides, training new users and handling user questions
Basel Jaber
Last position:
Senior Application Engineer / Product Manager at Altran Magnetics LLC
- Oversee development and optimization of key products, including DP contactors, EMI filters, and circuit breakers.
- Lead certification processes ensuring compliance with UL, TÃœV, and VDE standards.
- Act as technical liaison between customers, sales teams, and manufacturing to deliver customized solutions.
André Görst
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.
Peter Kortmann
Last position:
Hardware and Software Developer / Project Manager at Anonymer Kunde
- Development of control units for the automotive industry incl. embedded software
- CAN bus, Vector Tools, CANoe
- Support of the development process according to ISO 26262
- Ensuring cyber security standards:
- Key exchange (PKI) between vehicle and control units
- Hardware Security Module (HSM)
- Communication with external service providers (international)
- Development (PCB) of measuring adapters, statistical analysis of sensors
- IoT and embedded software development, backend administration
Matthias Kozlowski
Last position:
Requirements Manager (freelance) at Bundesdruckerei GmbH
- Maintenance of the product backlog in collaboration with the PO
- Analysis and alignment of requirements
- Creation of process documentation and status reports
- Definition of workflows
- Preparation and moderation of agile meetings
Anuja Chandran
Last position:
Embedded Software Engineer at Digital Core Technology
- Designed and implemented embedded firmware in C/C++ for ARM-based microcontrollers and SoCs (STM32, NXP, Infineon)
- Worked across bare-metal, FreeRTOS, and Embedded Linux environments, contributing to BSP-level functionality, driver bring-up, and system integration
- Built, configured, and validated Embedded Linux systems using Yocto, including image build, boot validation, and runtime debugging
- Developed and executed unit, integration, and system-level tests, including HIL and SIL test scenarios on real hardware and simulated environments
- Created Python and Bash scripts to automate build, test execution, simulation runs, and reporting within CI/CD pipelines (Jenkins, GitLab CI)
- Designed test cases from software and system-level requirements, covering normal operation, edge cases, and failure scenarios
- Performed low-level debugging using JTAG/GDB, analyzing boot issues, timing problems, interrupts, and peripheral behavior
- Developed and validated communication interfaces including UART, SPI, I2C, CAN using logs and external measurement tools
- Used simulation and virtual test environments to validate software behavior prior to hardware availability
- Read and interpreted hardware schematics to understand signal routing, pin multiplexing, and peripheral connections
- Supported PCB design and review activities using Altium tool, assisting with component selection, pin mapping, and bring-up readiness
- Collaborated with cross-functional hardware, firmware, and system teams to clarify requirements, document assumptions, and improve overall test coverage
- Developed web interfaces using HTML, CSS, and JavaScript (ES6) and basic REST API development with Node.js
- Experience testing web applications and building UI automation frameworks using Selenium WebDriver
Florian Ruhnau
Last position:
Network Administrator at Smartconnect Berlin
- Configuration and management of routers and switches (e.g., Cisco, HP)
- Design and expansion of networks in corporate environments
- WLAN site surveys and optimization (e.g., with Ekahau, NetSpot)
- Implementation of security policies and access controls
Mostafa Solaiman
Last position:
Embedded Firmware Engineer at Esko-Graphics Imaging GmbH
- FPGA code conversion from AHDL to Verilog and SystemVerilog (Altera Cyclone)
- IDE: Intel Quartus Prime (Altera)
- Code simulation: QuestaSim
- Timing analysis
Varsha Sehrawat
Last position:
Embedded Engineer (Working Student) at Lautsprecher Teufel GmbH
- Proficient in using JIRA for sprint planning, bug reporting, and task management.
- Modified and enhanced embedded C/C++ firmware code on STM32, ESP32 and ARM-based MCUs and SoCs.
- Debugged and fixed embedded software issues; managed code with Git/GitLab (commits, merge requests, reviews).
- Created and maintained test cases and test plans using Testmo.
- Debugged and validated firmware builds; provided detailed bug reports.
- Executed manual tests across development stages.
- Familiar with RTOS concepts and implementation, including task scheduling and interprocess communication for real-time embedded systems.
- Managed planning and execution of acceptance and regression testing.
- Supported mobile app and system-level testing for audio streaming device.
- Tested communication protocols (HTTP, I2C, SPI, UART) and API interactions.
- Used terminal tools and SSH to debug embedded Linux systems.
Ensar Yilmaz
Last position:
Service Manager Microsoft Cloud Services (ITIL) at Industry (technology group)
- Took on the role of Service Manager for Microsoft 365 and Azure services
- Coordinated service providers in collaboration and security (Exchange Online, Teams, Azure AD)
- Monitored and optimized SLA-compliant operational processes (Incident, Change, Problem)
- Worked closely with internal IT management and integrated ITIL processes into Azure DevOps
- Microsoft Azure, Exchange Online, Teams, Azure AD, ITIL v4, Azure DevOps, Power BI, ServiceNow
Kornél Lehőcz
Last position:
Computer Vision Algorithm Engineer (contract) at Sony R&D Center, Stuttgart Laboratory 1
- Conducted research and development in the field of large-scale 3D reconstruction
Discover over 15,000 top freelancers
Statistics of experts using TCP/IP
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 26 years)
Position duration
3.1 years (Germany: 3.3 years)
Positions per freelancer
17 (Germany: 19)
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Manufacturing, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
85% (Germany: 87%)
Master's degree or higher
54% (Germany: 53%)
Doctorate
8% (Germany: 10%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 98%)
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 Berlin 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 Berlin using TCP/IP
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
Core role
TCP/IP is the protocol suite behind most networked systems. It carries traffic across LANs, WANs, cloud networks, and hybrid setups. Companies bring in specialists when they need stable connectivity, clean packet flow, or a network design that can scale without losing control.
Typical work
- Design IPv4 and IPv6 addressing plans
- Review routing, switching, and subnet boundaries
- Diagnose latency, drops, and session resets
- Support DNS, DHCP, NAT, and VPN traffic paths
- Document network behavior for operations teams
Ecosystem
TCP/IP work often touches the wider network stack, not just the protocol pair itself. Strong professionals know how TCP, IP, UDP, ICMP, routing protocols, firewalls, load balancers, and packet capture tools fit together. They can read traffic, follow handshakes, and explain where a connection breaks.
When to bring help
Companies usually look for freelance expertise during migrations, incident response, or network changes that affect production traffic. In Berlin, this often matters for teams running office networks, SaaS backends, or connected systems across multiple sites. It also helps when internal teams need a clear view of remote access and inter-service communication.
What good specialists do
A strong TCP/IP professional does more than recite terms. They trace packets, isolate misconfigurations, and separate application issues from transport or routing problems. They also write clear handover notes, so operations teams can keep the network stable after the project ends.
Common project types
- Network troubleshooting and root-cause analysis
- Cloud and data center connectivity reviews
- Segmentation, routing, and firewall rule planning
- Migration support for legacy IP environments
- Performance checks for services that depend on reliable TCP sessions
Frequently asked questions
The facts hiring teams ask for most often when it comes to TCP/IP.
TCP/IP is the core protocol suite that moves data between systems on local networks, across the internet, and through private cloud links. Companies use it for routing, addressing, reliable sessions, and basic network communication between services, users, and devices. It is the foundation behind most traffic that reaches a server or application.
Bring in a TCP/IP specialist when the problem sits deep in packet flow, routing, address design, or transport behavior. That is common during outages, migrations, segmentation projects, or when traffic works in one place and fails in another. A focused specialist can usually narrow the fault faster than a broader generalist.
TCP/IP is the practical model most teams work with every day, while OSI is mainly a reference model for explaining layers and troubleshooting. In projects, professionals often use OSI language to describe a problem, but they solve it with TCP/IP tools and real network behavior. If a freelancer only knows theory, that is usually not enough.
A strong TCP/IP professional usually also knows IP addressing, subnetting, DNS, DHCP, NAT, routing, VPNs, and firewall rules. Packet capture tools and basic cloud networking are also valuable. In Berlin, that mix is especially useful for teams that combine office networks, remote access, and cloud services.
For simple reviews or documentation, a focused TCP/IP expert may be enough. For production incidents, network redesign, or migration work, you want someone who has handled real routing and transport issues before. The more critical the traffic path, the more you should value hands-on troubleshooting depth.
Most TCP/IP work can be done remotely if the specialist has access to packet captures, configs, monitoring, and a clear contact in the team. On-site time helps when hardware, cabling, or local network segments are part of the issue. For Berlin companies, hybrid collaboration is often the most practical setup.
Look for clear thinking, not just terminology. A good TCP/IP expert explains how they isolate a fault, what evidence they need, and how they verify the fix. Ask for examples of routing changes, incident analysis, or network redesign work, and check whether the answers are specific and structured.
Yes. TCP/IP still underpins cloud connectivity, container traffic, VPNs, load-balanced services, and communication between distributed systems. Cloud changes the location of the network, not the need to understand packet flow, addressing, and transport behavior.
The average hourly rate of freelancers in Berlin, Germany who have used TCP/IP in their recent projects is 89 €, which corresponds to a daily rate of about 712 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used TCP/IP in their recent projects, 85% hold at least a Bachelor's degree, 54% hold at least a Master's degree, and 8% hold a doctorate.
On average, freelancers in Berlin, Germany who have used TCP/IP in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 3.1 years.
The most common languages among freelancers in Berlin, Germany who have used TCP/IP in their recent projects are German (100%), English (100%), and French (22%).
The most common industries among freelancers in Berlin, Germany who have used TCP/IP in their recent projects are Information Technology (89%), Manufacturing (61%), and Automotive (44%).
The most common business areas among freelancers in Berlin, Germany who have used TCP/IP in their recent projects are Information Technology (94%), Product Development (72%), and Project Management (67%).
Main locations of FRATCH Experts, who have recently used TCP/IP
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf Request a free demo
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Philipp Thomaschewski
FRATCH CEO
