Modbus Experts in Germany
in minutes from over 15,000 CVs with the power of AIHire experts who set up Modbus RTU and Modbus TCP, map registers cleanly, and connect PLCs, drives, sensors, and SCADA systems. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used Modbus
Goran Popovic
Last position:
Test Manager & Analyst at Festo / Questax GmbH
Project goal: Carrying out system tests and validating industrial communication and control systems, including requirements definition and verification.
Responsibilities:
- Test planning, test execution
- Test strategy, test cases, and test specifications
- Requirements analysis
- Ensuring traceability between requirements, test cases, and defects
- Carrying out regression and integration tests
- Defect analysis
- Simulation and validation
- NetSniffer Wireshark
- Supporting test automation (Python, CI/CD)
- Reporting
- Stakeholder coordination and agile collaboration (Scrum / SAFe / Kanban)
- V-Model
- CI/CD automation with Python, Groovy, and frameworks (Selenium, PyTest)
Technologies:: CAN, Modbus, Ethernet, PLC, PROFINET, Codebeamer ALM, Scrum, SAFe, MS Teams, Git, CI/CD with GitLab CI and TeamCity, Windows Batch, FAS, Wireshark, Python, Enterprise Architect (EA), AI tools (e.g. ChatGPT, Microsoft Copilot), VS Code, Tia Portal, SCL, Python (Selenium, PyTest)
Yusuf Congar
Last position:
Senior Software Engineer at LeiKon GmbH
- Development of scalable backend applications with C#/.NET and Java
- Design and implementation of distributed microservice architectures
- Development and integration of REST APIs for industrial applications
- Development of modern web applications with React, Angular, and TypeScript
- Implementation of MQTT-based communication solutions
- Integration of industrial protocols such as OPC UA and Modbus TCP
- Development of batch, process control, and HMI components
- Containerization and deployment of applications with Docker
- Conducting code reviews and supporting architecture decisions
- Close collaboration with product owners, QA, and interdisciplinary teams
- Analysis of business requirements and implementation of technical solutions
- Further development of existing software architectures with a focus on maintainability and performance
Technologies: C#, .NET, ASP.NET Core, Java, C++, React, Angular, TypeScript, Vue.JS, MQTT, OPC UA, Modbus TCP, Docker, GitLab, MariaDB, MySQL, Linux
Emil Ostberg
Last position:
Automation Engineer In House at Prevas AB
Working as an Automation Engineer in Prevas' in-house engineering team. My primary assignment involves developing and expanding ABB 800xA SCADA systems for a large-scale data center project. Responsibilities include SCADA graphic design, alarm management, system integration using OPC UA and Modbus, testing, verification, documentation, and commissioning support. In addition, I contribute to PLC and HMI development projects using Siemens, Rockwell, and ABB platforms and provide 24/7 remote support for industrial customers.
- ABB 800xA & ControlBuilder/ AC800M
- Rockwell Studio 5000 Logix Designer
- Siemens TIA Portal
- ABB 800xA
- Remote Support
- Troubleshooting hardware/software
Ljubomir Obrenovic
Last position:
Senior Software Test Engineer at Keil KTM GmbH
Temporary employment
- System black-box integration tests (BBIT, IVVQ): Execution of regression, release, acceptance, and compliance tests for safety-critical brake control units in the rail industry
- Software test application & integration: Runtime configuration of software components and libraries, validation of interfaces, configuration dependencies, and component interactions
- Test automation (FEAT framework): Co-development and further development of an automated test framework for test execution, reporting, and result analysis
- Functional safety (SiL4, FuSi): Ensuring compliance with safety requirements, traceability and coverage, as well as standards compliance according to EN50126/28/29
- Test automation for communication components: Configuration and validation of fieldbus (CAN) and Ethernet-based TCMS data communication interfaces (TRDP and CIP)
- Requirements analysis & shift-left (PTC Windchill ALM): Analysis of software and system artifacts to identify gaps, ambiguities, and redundancies early in the SDLC
- Test design & test case development: Derivation of test conditions, coverage strategies, and implementation of data-driven test cases (DDT), including reusable test data fixtures
- CI/CD & automation (Python, PowerShell, Jenkins, SVN): Automation of build, test, and HIL deployment processes as well as integration into CI/CD pipelines
- Test data & configuration management (XML): Maintenance and adaptation of XML test vectors and system configurations with automated integration into test environments
- Non-functional testing: Execution of performance and load tests to assess stability and system behavior
- Agile development & defect management (JIRA, Confluence): Participation in Scrum teams, test coordination, review of test artifacts, as well as defect tracking and root-cause analysis
- Error analysis & debugging (CANoe, CANalyzer): Analysis of errors and message flows across multiple system layers (application to bus)
- Model-based analysis (UML, Enterprise Architect): Specification of SUT/SOW and support for systematic test control
- Process & test documentation: Creation of integration and test documentation according to internal quality and certification requirements
Jens-Uwe Peter
Last position:
Architecture and Programming for Automotive Test Bench Platform at Automotive Supplier
In this project, I was responsible for the design and implementation of a new, modular, and highly scalable test bench platform for an automotive supplier. My focus was on developing a robust system architecture and programming the associated software, with consistent use of UML modeling throughout. This structured approach made it possible to greatly increase the reusability of individual LabVIEW test modules and to significantly reduce development time for follow-up projects. I also integrated modern automotive standards such as CAN FD, LIN, and safety requirements, which made the solution future-proof.
Technologies: LabVIEW, Visio, UML, CAN FD, LIN, DMM, Safety, image processing, project management, HMI, C#, C++, Python, Rust, CI
Jorge Machado
Last position:
Technical Lead / Fractional CTO at Würth GmbH
I designed and developed an AI-powered multi-tenant platform on Azure that transforms SAP process recordings into technical documentation, presentations and automated tests, processing over 15,000 process recordings for enterprise customers like Würth. I owned the architecture, the production releases and the DevOps setup. I also designed a multi-tenant system with SSO and role-based access on Azure. Implemented an MCP Server with Dynamic OAuth Authentication.
Main Tasks:
- Sprint planning and feature preparation
- Design the multi-tenant platform architecture (FastAPI, SQLAlchemy, PostgreSQL row-level security for tenant isolation)
- Develop AI pipelines with Prefect for transcription (Azure Speech API), document generation and SAP screen-recording analysis (Claude, gpt-4-mini)
- Design and implement an MCP server to expose tenant knowledge to LLM clients (Claude), with async retrieval and reranking
- Implement LLM cost tracking, rate limiting and client pooling for Anthropic/OpenAI/Azure OpenAI endpoints
- Set up CI/CD: Docker images to Azure Container Registry, GitHub Actions, Azure Static Web Apps, Alembic migrations in containers
- Manage production releases and execute live data migrations for enterprise customers
- Define engineering standards and architecture patterns for the team
Environment: Azure / Azure Foundry / Python / FastAPI / Prefect / React / PostgreSQL
Giuseppe Abrignani
Last position:
Embedded Software Developer at Inheco
- AI Integration (LLM & RAG): Design and build of an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data for the automated analysis of technical documents and error logs.
- Design & Implementation: Design of a robust RS-232/UART communication interface for an SBC-based embedded device to control medical shaker systems.
- Architecture & Protocol Design: Implementation of a highly maintainable software structure (OOP, SOLID) and definition of hardware-close, resilient communication protocols including multithreading and advanced error handling.
- Quality Assurance & DevOps: Test automation using xUnit, integration tests directly on the hardware target, and maintenance of technical documentation according to strict medical technology standards via Azure DevOps.
Label: C#, .NET, LLMs, RAG, n8n, RS-232, UART, Multithreading, async/await, xUnit, gRPC/protobuf, Blazor, MudBlazor, EF Core, Visual Studio 2026, Azure DevOps
Lino Giefer
Last position:
Senior Data Scientist at VinFast Germany GmbH
- Led strategic software development of fusion algorithms for precise object tracking, trajectory prediction, and environment modeling based on multimodal sensor data (e.g., camera, LiDAR, radar, GNSS, IMU)
- Developed and implemented navigation algorithms for autonomous vehicles, including path planning, obstacle avoidance, and sensor fusion of visual, inertial, and distance-based sensor sources
- Automated extraction and training processes with CI/CD
- Developed and optimized data pipelines and processes in Microsoft Azure using Apache Spark, Databricks, and PySpark
- Developed and optimized embedded software for automotive control units
- Designed latency-critical software for real-time control in robotic systems with RTOS (freeRTOS, SAFERTOS)
- Used the Vector toolchain (CANdela, DaVinci, CANoe) for configuration and diagnostics
- Optimized existing data pipelines and processes (ETL, data warehouse, SQL)
- Developed and trained machine learning models using PyTorch
- Created deep-learning-based object detection and visual SLAM algorithms, trained on combined data from camera, LiDAR, and IMU sensors
- Implemented computer vision algorithms for object detection and classification in robotic systems using OpenCV and YOLO, utilizing synchronized image and depth data
- Implemented behavior-based control systems for autonomous robots using ROS2 Behavior Trees
- Performed testing, release, and integration of sensor fusion algorithms into automotive production programs
- Ensured adherence to proper software development processes and safety standards to guarantee high data quality (MISRA, ISO 26262, ASPICE)
Olfa Azzabi
Last position:
Senior Embedded Software Engineer / Function Developer at Enginius GmbH (FAUN GROUP)
- Developed model-based software for hydrogen tank control units using MATLAB/Simulink, aligned with ISO 26262 functional safety requirements
- Performed system integration and software verification across MIL and HIL environments using dSPACE and Vector tools
- Defined software architecture (SADS) with interface specifications for CAN, analog, and digital communication protocols
- Generated production-ready embedded C code using Simulink Embedded Coder; created and maintained A2L calibration files with CANape
- Designed and executed MIL/HIL test cases ensuring full coverage of functional and safety requirements
- Implemented CODESYS PLC applications on IFM ecomatController; applied CAN and Modbus TCP/IP communication protocols
- Contributed to HMI/UI development using Qt/C++ on Linux (Qt Creator)
- Applied agile Kanban workflow with Git-based version control (Bitbucket)
Tools: MATLAB, Simulink, CANape, CANalyzer, PCAN-View, Embedded Coder, CODESYS, TTC2038/PXROS, Codebeamer, Jira, Git
Daniel Sedlack
Last position:
Senior Software Engineer at energielenker solutions GmbH
- Designed and implemented a Python-based ETL pipeline with the Dagster framework to transform raw energy data from heterogeneous sources using InfluxDB and visualizations in Grafana
- Defined time-based and dependency-based jobs
- Deployed to managed Kubernetes clusters using Helm
- Integrated InfluxDB Cloud
- Prepared data for use in Grafana, including cleaning, normalization, and time-based resampling in Python
- Developed dashboards and visualizations in Grafana
- Developed unit tests with mocking using pytest
- Set up a CI/CD pipeline in GitLab
Technologies: Python, Dagster, InfluxDB, Grafana, pandas, pytest, REST, CI/CD, GitLab, Container, Kubernetes, Helm, Docker, Cloud
Ali Desteli
Last position:
Software Engineer Industrial IT & PLC at Yaskawa Europe GmbH
Designed and implemented the complete data flow architecture for the Mercedes-AMG battery case production line, from raw material processing to end-customer traceability.
Developed MQTT-based communication protocols for Siemens S7 PLC controllers to enable efficient real-time data exchange between machines and supervisory systems.
Architected a local Ubuntu-based industrial server, integrating Node-RED for data collection, MySQL databases running in Docker containers, and automated data pipelines.
Commissioned connectivity of 52 Siemens PLCs and 32 Yaskawa welding and handling robots.
Designed and implemented HMI and visualization systems to support operator interaction and production monitoring.
Designed a 2D digital twin of the production floor, visualizing real-time process data from 26 Siemens PLCs and 18 Yaskawa welding robots via Stromquelle interfaces.
Implemented data collection and camera-based measurement systems for welding quality control and automated defect visualization.
Designed and optimized MySQL database structures, including stored procedures for data processing and performance analytics.
Valentin Reuter
Last position:
Freelance Hardware Development Engineer at Swarm Biotactics
PCB design with Altium, MCU Programming, Prototyping
Philipp Gleicke
Last position:
Agile Coach / Scrum Master at Via PROCEED!NOW – Customer: Die Lobby GmbH
- Introduction and anchoring of agile methods and mindsets in an interdisciplinary development team
- Coaching and training agile practices (Scrum, Kanban) in the context of a complex, data-based product
- Supporting and mentoring the product owner in prioritization, backlog maintenance and stakeholder communication
- Sparring partner for the product team in the further development of the product vision and strategy
- Supporting the conversion or new development of a provisioning and sales management tool
- Integration and coordination of the SAP, TYPO3 (PIM) and individual microservices systems in the backend
Gavrilo Olah
Last position:
Head of Software Development at Davidsmeyer & Paul GmbH
- Strategic project development, realisation, and implementation with internal and/or external development team
- Multi stakeholder management
- Planning new projects, cost calculation, risk calculation
- AI project for the electrical components production
- Building management systems integrations (BACnet, Modbus, etc)
- Inhouse BACring system architecture and development (control system for fire protection and smoke extraction systems)
- Inhouse MES system architecture and development
- Project management
- Agile-SCRUM project development
- Solution architecture and processes analytics (UML)
- Business application development
- Jira project management
- Reporting and documentation
- Recruitment process for the IT staff
- Software architecture, project development, costs, risks
- Education IT staff (internal and external)
- Responsibility for 5 development/DevOps/QA teams
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, TÜV, and VDE standards.
- Act as technical liaison between customers, sales teams, and manufacturing to deliver customized solutions.
Discover over 15,000 top freelancers
Statistics of experts using Modbus
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
2.4 years
Positions per freelancer
10
Top business areas
Product Development, Information Technology, Quality Assurance
Top industries
Manufacturing, Information Technology, Automotive
Certification focus areas
Information Technology, Quality Assurance, Operations
Bachelor's degree or higher
85%
Master's degree or higher
58%
Doctorate
9%
Certifications per freelancer
3
Most common languages
English, German, French
Speak two or more languages
100%
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 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 Modbus
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
What Modbus does
Modbus is a simple industrial communication protocol used to move data between controllers, sensors, drives, meters, and supervisory systems. It appears in plant floors, energy systems, building automation, and test rigs. Strong professionals know when to use Modbus RTU, Modbus TCP, or a gateway between both.
Typical work
- Map holding, input, coil, and discrete registers
- Connect devices over RS-485 or Ethernet
- Set up polling, addressing, and timeouts
- Bridge Modbus to SCADA, PLC, HMI, or historian tools
- Diagnose noisy links, wrong endianness, and broken register maps
Skills that matter
A good Modbus specialist understands serial wiring, baud rates, parity, termination, and basic network troubleshooting. They also read device manuals carefully, because register ranges and data types vary a lot by vendor. Clear documentation is part of the deliverable, not an extra.
When companies bring help
Companies usually look for freelance expertise when a line stops talking to a device, a new machine must join an existing network, or a legacy system needs a clean handover to Modbus TCP. In Germany, this often comes up in manufacturing, energy, utilities, and building controls. Remote work is common for mapping and review; site visits help with wiring and on-site diagnosis.
Ecosystem and tools
- Modbus RTU and Modbus TCP stacks
- RS-485 adapters, converters, and gateways
- PLC, SCADA, and HMI integration
- Test tools that read and write registers
- Device manuals, register maps, and signal checks
What strong professionals deliver
Strong professionals do more than make a connection work. They leave stable polling cycles, clean tag naming, tested register mappings, and notes that other experts can maintain. They also spot weak device documentation, protocol mismatches, and address conflicts before they become downtime.
Frequently asked questions
Curious about Modbus? Here are the answers that come up again and again.
Modbus is used to exchange simple control and measurement data between industrial devices. Companies use it for meters, drives, pumps, sensors, controllers, and monitoring systems. It fits projects where reliability and clear register mapping matter more than complex features.
Modbus RTU is common on serial links such as RS-485, while Modbus TCP runs over Ethernet. The right choice depends on the existing hardware, cable runs, and whether the site already has network infrastructure. A good specialist can also bridge both with a gateway when needed.
Modbus is simpler than OPC UA and usually easier to integrate, but it offers less built-in structure and security. Compared with Profinet, it is lighter and more universal across mixed vendor equipment, but it is not as rich for advanced machine communication. The best choice depends on the device mix and the control architecture.
A strong Modbus specialist should also understand serial wiring, Ethernet basics, PLC or SCADA integration, and device documentation. Knowledge of register formats, byte order, and diagnostics is important too. For site work, practical troubleshooting with meters and adapters helps a lot.
A Modbus project can be small or highly sensitive. A simple register read may need only a focused specialist, while a plant integration with many devices and mixed vendors needs someone who has handled troubleshooting, mapping, and commissioning before. The risk comes from hidden device differences, not from the protocol itself.
Many Modbus tasks can be done remotely, especially register mapping, code review, and documentation checks. On-site support is better when wiring, termination, grounding, or signal noise is part of the problem. In Germany, many companies combine both: remote analysis first, then a short site visit if needed.
A good Modbus professional produces a clean register map, explains device assumptions, and tests read and write behavior carefully. They should ask about addressing, byte order, polling rate, and failure handling before making changes. Clear notes and stable communication are signs of real quality.
The most common Modbus mistakes are wrong register offsets, mixed up data types, bad serial settings, and poor termination on RS-485 lines. Another frequent issue is assuming every vendor uses the same register layout. Good specialists verify each device and document the exact mapping.
The average hourly rate of freelancers in Germany who have used Modbus in their recent projects is 92 €, which corresponds to a daily rate of about 739 € based on an 8-hour working day.
Of the freelancers in Germany who have used Modbus in their recent projects, 85% hold at least a Bachelor's degree, 58% hold at least a Master's degree, and 9% hold a doctorate.
On average, freelancers in Germany who have used Modbus in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Germany who have used Modbus in their recent projects are English (100%), German (98%), and French (25%).
The most common industries among freelancers in Germany who have used Modbus in their recent projects are Manufacturing (85%), Information Technology (70%), and Automotive (53%).
The most common business areas among freelancers in Germany who have used Modbus in their recent projects are Product Development (98%), Information Technology (90%), and Quality Assurance (73%).
Main locations of FRATCH Experts, who have recently used Modbus
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
