SIMATIC S7 Experts in Germany
in minutes from over 15,000 CVs with the power of AI.Hire experts who work with SIMATIC S7, S7-300, S7-400, S7-1200 and S7-1500 systems, STEP 7 projects, and industrial communication on the TIA Portal stack. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used SIMATIC S7
Muhammad Tanveer Baig
Last position:
Embedded Systems Consultant / Architect | Integration and Validation Engineer / Manager at Ingenieurbüro Baig
Led the hardware development and validation of a safety-critical 400 V battery management system (BMS) for the TOGG SUV program; performed system architecture reviews, schematic validations, EMC and reliability tests, and root cause analyses in line with relevant automotive standards (ECE-R10, CISPR25, ISO-26262). Coordinated cross-border EU engineering teams, customer reviews, and technical documentation to deliver a production-ready, validated system.
Architected and integrated 22 state-of-the-art ADAS validation vehicles for BMW ADCAM and LIDAR programs at Magna Electronics; synchronized up to 26 heterogeneous sensors (LIDAR, RADAR, cameras, GNSS/INS) using PTP-based timing architectures. Defined the system architecture, HW/SW interfaces for hardware-in-the-loop (HIL) reprocessing, sensor integration strategies, and data acquisition frameworks. This enabled scalable vehicle-level validation, improved validation efficiency by 25%, and reduced project costs by €1.45 million.
End-to-end validation and integration of automotive radar platforms for a Daimler project at Continental. Developed automated open-loop hardware-in-the-loop (HIL) environments to accurately test target tracking KPIs, field of view limits, and thermal and voltage-related ECU state machines. Used a highly complex toolchain consisting of CANoe, Lauterbach Trace32, RADAR target simulators, and EMC shielding chambers for RF and system validation. Synchronized global, interdisciplinary teams to speed up troubleshooting and close critical technical gaps.
Reconstructed and validated the product architecture of an electromechanical e-bike by integrating and troubleshooting critical subsystems (BMS, motor control, sensors, HMI, electronic locking systems). Built a comprehensive system-level test bench for functional testing, fault reproduction, and performance analysis; coordinated suppliers and implemented corrective actions to improve reliability and traceability.
Defined the system architecture and validation strategy for a LIDAR platform developed in cooperation with Elmos Semiconductor; evaluated optical measurement concepts, SPAD detector integration, and system requirements, and created technical recommendations for product development and verification.
Developed LabVIEW-based automation and verification software for a high-precision hydraulic and electromechanical test system for FTE Automotive; integrated NI DAQ hardware for high-frequency real-time capture of physical measurement data. Developed automated test sequences, programmable endurance tests, troubleshooting routines, data logging, and analysis tools to improve test efficiency and traceability.
Successfully managed complete engineering life cycles for well-known industrial customers (Magna, Continental, Farasis, FTE Automotive, BMW, Daimler, TOGG) – from requirements engineering and proof of concept through system integration and validation to technical documentation, supplier coordination, and user training.
Kusay Tomeh
Last position:
Freelance System & Software Architect - DNA-Extraction Robot at QIAGEN GmbH
- System and software architecture for the QIA-symphony Connect DNA-extraction robot in Life Science / IVD automation.
- Designed features and control logic for extraction, pipetting, lysis and eluate modules using C++, PLC/ST (Beckhoff IPC / TwinCAT 3) and model-based concepts.
- Delivered ISO 13485-oriented requirements, architecture, unit/integration/regression tests and DHF/VEP/VER/TCL documentation.
- Used Polarion, Jira, Confluence, Azure and AI-assisted documentation to improve traceability and engineering efficiency.
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.
Thomas Stork
Last position:
Automation Technology Lecturer at HWK Munich and Upper Bavaria
- Training professionals in PLC technology, pneumatics, control engineering, and KUKA robots
- Creating scripts for Siemens systems: STEP 5, STEP 7, TIA Portal, WinCC
- Creating scripts for pneumatics, control engineering, and KUKA robot programming
- Serving on the examination committee for quality assurance in vocational training
- Training and certifying over 500 professionals
Matthias Schwarz
Last position:
Manager External Staffing Digital & Operations at EnBW AG
- Training and advising project teams in sales and IT on the compliant use of external staff through service/work contracts
- Preparing service descriptions with consideration of labor and social security law as well as compliance aspects
- Supporting teams in transforming ways of working into new collaboration models
- Supporting tenders as a representative of the specialist departments
- Developing solution strategies for future collaboration with external service providers
- Running and designing workshops, creating training materials
Frank Doerries
Last position:
Project management, development and system integration for retrofit on a Uranus thermionic mass spectrometer at Forschungszentrum Jülich
- Development of a retrofit concept, including qualification measures
- Development, installation and commissioning of the required hardware and software
- Development of a safety concept
- Execution and documentation of in-house verifications / qualification
- Initiation and implementation of measures in case of non-conformities
- Execution of CE conformity assessment procedures and CE marking
Ulrich Eisel
Last position:
Technical Consultant in Electrical Engineering
Technical consulting for electrical engineering in the areas of control system design, measurement technology and automotive applications
Participation in development, commissioning and optimization of individual components for hybrid electric drives including HV batteries and electrical auxiliary units
Integration of individual systems into the overall system and preparation for homologation
Development of analog and digital circuits
Design of circuit diagrams in control and special machine construction for individual machines
Definition of switch cabinet layout and switch cabinet wiring
Selection and programming of electronic control (PLC) and display / control unit (HMI)
Selection and parameterization of converters, sensors and DC-DC converters
Adaptation of industrial and rail components for vehicle use in cooperation with external development partners
Collaboration with external developers from specification to function testing and final acceptance of the finished device
Design of HV network for hybrid vehicles as well as construction supervision and commissioning
Specification and testing of electrified auxiliary units (steering, climate control, on-board power supply)
Parameterization of frequency converters and programming of positioning controllers
Preparation of quotes, creation of specifications, price negotiations and procurement of electrical items
Scheduling and control as well as supervision of control system construction, wiring and machine wiring
Creation of PLC programs and programming of operator panels (HMI)
Functional testing of individual machine elements and sensor adjustment
Initial commissioning at the manufacturer's site, test run of the machine, documentation preparation and revision of circuit documents
Leading commissioning at the end customer, training of customer's staff and management of the electrical engineering department with supervision of employees
Own patent research and patent monitoring (optoelectronic 3D measuring systems)
Commissioning and troubleshooting of HV batteries for hybrid vehicles together with the manufacturer
System responsibility for hybrid test vehicles, especially HV safety
Use of CAD systems (AutoCad light), CAE systems (Caddy++ electrical 3.0SP1, EPLAN P8), MS Office, MS Visio, MS PowerPoint, Adobe Acrobat Standard, Vector CANalyzer, Mitsubishi Melsec Medoc Plus, Mac-Programmer Plus, S7 standard, Siemens Micro-Win 3.2, Siemens ProTool light and ProTool CS, S7-Net OPC server, programming software for frequency converters and positioning controllers, Sistema and Spice
Previous project experience includes: integration of HV batteries in hybrid vehicles, development of optoelectronic sensors, construction supervision of hybrid vehicles, commissioning of NC machines, electrical control of processing and packaging machines, commissioning of a photovoltaic system and restoration of a run-of-river power plant
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.
Uwe Keller
Last position:
Software Architect / Developer at Manufacturer of packaging and filling machines in the pharmaceutical industry
- Migration of an Excel-based parameterization software into a .NET application based on .NET 8 and WPF.
- Use of MS SQL Server as the primary database with generic access to SQLite for portability.
- Reengineering of complex macros and database-like structures in Excel sheets for input dialogs and validations.
- Integration and optimization of the solution to ensure easy-to-use operation.
- System environment: Windows 10 (x64), MS SQL Server, SQLite, Visual Studio Pro. 2022 with .NET 8.0, C# with WPF, VBA scripting with Excel, GIT.
Wolfgang Steiner
Last position:
Software Developer / Aviation Commissioning Engineer at Vakuum Schmelze Hanau
- Development of automation software and commissioning of a pneumatic press for processing electrical sheet stator cores, including KUKA robot handling, process monitoring, and connected measurement systems for quality inspection and sorting.
Jean-Louis Tsalefac
Last position:
Area Manager - Aftersales Operations at E80 Group
- Development and quotation of technical solutions
- Design of high-performance solutions
- Management of aftersales operations, teams and budget
- Documentation revision
Taner Metin
Last position:
Founder at FixHub
- System design for problem solving and task allocation for demand infrastructures using modern enterprise solutions and SDLC principles
- SaaS and PaaS development, problem solving, and cloud computing
- Infrastructure-as-code implementations for development, Q&A, and production environments
- Terraform, AWS, Azure, GCP, MongoDB, OpenStack, Cisco, OpenShift
Volkmar Schulze
Last position:
Commissioning Coordinator Marine HVAC Systems at Meyer Wismar Sárl
- Coordination of upstream and downstream departments and background teams (UAN)
- Coordination with the shipyard and the schedule, identifying deviations and cross-functional response to plan deviations
- Rescheduling workflows and staff assignments to drive prioritized goals forward
- Independently implementing solutions on board the ship
- Checking compliance with occupational safety rules, especially PTW procedures for electrical work
Ahmet Demir
Last position:
Electrical Designer / Hardware Planner EPLAN 2024 at Horiba GmbH
- Planning and development of electrical systems for test benches and alternative drive systems
- Designing a battery test station specifically for electric cars
- Specifying and designing controls, following standards, legal regulations, planning guidelines, and customer specs
- Sizing and selecting electrical components
- Creating electrical schematics and macros and maintaining parts data with EPLAN P8 Version Interface 2024
- Updating and adapting PLC programs
- Preparing SISTEMA calculations
- Supporting assembly and commissioning
- Ordering electrical components in SAP
- Ensuring compliance with common standards and regulations
- Sizing and cost calculation of high-current cables (1200 V/1000 A for AC and DC)
Daniel Pohl
Last position:
Freelancer in industrial automation engineering at dPSolutions
- Independent work as a PLC and software specialist focusing on automation and custom machinery
- Programming, modernization, expansion and optimization of production plants with focus on efficiency improvements, data transparency and system integration
- PLC programming and safety with Siemens S7 Classic/TIA-Portal, Beckhoff TwinCAT 2/3 and CoDeSys
- Development of high-level language software and database applications (.NET / C#, C++, Visual Basic .NET, Borland/Embarcadero C++)
- Development of custom software solutions for industrial automation, including embedded systems (Raspberry Pi, Arduino, NodeMCU, ESP8266)
- System integration of external systems such as readers, printers, scales, scanners and cameras, as well as various fieldbus systems (Ethernet, Profinet, Profibus, EtherCAT, CAN bus, RS232, TCP/IP)
- Creation of visualizations and HMI applications with Siemens WinCC flexible, Beckhoff HMI and .NET front-ends
- Design, development and integration of machine vision solutions (Keyence, Cognex, AVS Alfavision, camera systems) in PLC and PC environments
- Design and implementation of process data acquisition systems and traceability solutions (100% traceability) based on Microsoft SQL Server (Compact, Express, Server) including stored procedures and direct PLC-SQL communication
- Creation of software and PLC concepts, standard function blocks and project libraries for PLC and high-level language projects
- Design and programming of conveyor, testing, assembly, packaging and grinding systems in industries such as automotive, chemical, food, electronics and machinery and plant engineering
- Conducting workshops and training on Siemens TIA-Portal, STEP7 Classic, Beckhoff TwinCAT (including TwinSAFE) as well as topics like architectures, safety, database integration and documentation
- Creation of technical documentation, manuals, training materials and class documentation with Microsoft Office and Doxygen
- Project management tasks from requirement analysis through planning, concept development and supplier coordination to commissioning, production support and maintenance
Discover over 15,000 top freelancers
Statistics of experts using SIMATIC S7
Aggregated from the professional profiles of matched freelancers.
Experience
24 years
Position duration
4.5 years
Positions per freelancer
12
Top business areas
Product Development, Operations, Information Technology
Top industries
Manufacturing, Automotive, Energy
Certification focus areas
Product Development, Operations, Information Technology
Bachelor's degree or higher
88%
Master's degree or higher
53%
Doctorate
3%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
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 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 SIMATIC S7
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 S7 does
SIMATIC S7 is Siemens PLC technology for controlling machines, lines, and plant equipment. It is used in factory automation, process control, material handling, and safety-related logic around the SIMATIC and Siemens S7 family. Companies bring in specialists when they need stable control code and clean interaction with sensors, drives, and HMI systems.
Typical projects
- New PLC programs for production cells and conveyor systems
- Refactoring older STEP 7 logic on S7-300 or S7-400
- Migration to S7-1200, S7-1500, or TIA Portal
- Fault analysis after downtime or sporadic process errors
- Support for commissioning and handover on site
Ecosystem and tools
Strong experts know the Siemens stack around SIMATIC S7: STEP 7, TIA Portal, WinCC, PROFINET, PROFIBUS, and common drive interfaces. They work with ladder logic, function blocks, diagnostics, and structured documentation so plant teams can maintain the system after delivery. They also understand how S7 fits into broader automation architectures.
When to bring in help
Bring in freelance expertise when a line change has a tight deadline, internal staff are busy, or an older installation needs careful updates. S7 work often appears during commissioning, retrofits, troubleshooting, and migrations where small mistakes can stop production. In Germany, many projects need a mix of remote preparation and on-site support.
What strong specialists deliver
- Clear control logic that matches the real machine sequence
- Reliable communication with HMIs, sensors, and drives
- Structured comments, alarms, and diagnostics
- Safe changes on live systems with low risk
- Clean handover for maintenance teams
Signs you need a specialist
If your S7 program is hard to change, alarm handling is unclear, or nobody knows how an older plant was built, bring in an expert. The same applies when Siemens S7 hardware must be extended, replaced, or linked to new production software. Good professionals make the system easier to run, not just work once.
Frequently asked questions
Questions about SIMATIC S7? Start with the answers below.
SIMATIC S7 is used to control machines, production lines, and plant processes through programmable logic. It handles signals from sensors and switches, then drives outputs, alarms, interlocks, and sequence steps. In practice, it sits at the core of many Siemens-based automation systems.
Siemens S7 refers to the PLC family and the control logic that runs on it, while TIA Portal is the engineering environment often used to build and maintain newer S7 systems. Older projects may still use STEP 7 Classic, especially with S7-300 and S7-400. The right expert knows both the hardware generation and the software stack around it.
A strong SIMATIC S7 specialist usually also understands industrial networking, HMI work, and drive integration. Common adjacent skills include PROFINET, PROFIBUS, WinCC, commissioning, troubleshooting, and reading electrical schematics. That mix matters because PLC code rarely stands alone.
You need an S7 expert when the system is live, the timeline is tight, or the machine behavior is difficult to reproduce in a test setup. That is especially true for migrations, retrofits, and fault finding on older plants. If the logic is undocumented, experience becomes even more important.
SIMATIC S7 work is often split between remote preparation and on-site commissioning. Remote support is good for code review, documentation, testing against backups, and troubleshooting reports, but machine start-up and I/O checks usually need direct access. In Germany, many companies ask for both.
Look for proof that the Siemens S7 specialist has shipped work on systems similar to yours, not just general PLC knowledge. Strong signs are clear diagnostics, tidy structure, safe change handling, and the ability to explain the logic to maintenance staff. Ask how they approach backups, version control, and handover.
S7 families differ in generation, performance, and typical use cases. S7-300 and S7-400 are often seen in older installations, while S7-1200 and S7-1500 are common in newer builds and migrations. A good expert knows how to support both legacy and current systems without breaking compatibility.
Before starting a SIMATIC S7 project, the freelancer should know the plant layout, hardware list, I/O map, safety rules, and the current software version. Access to backups, wiring documentation, and a clear change process saves time and reduces risk. The best results come when the scope is defined early.
The average hourly rate of freelancers in Germany who have used SIMATIC S7 in their recent projects is 91 €, which corresponds to a daily rate of about 731 € based on an 8-hour working day.
Of the freelancers in Germany who have used SIMATIC S7 in their recent projects, 88% hold at least a Bachelor's degree, 53% hold at least a Master's degree, and 3% hold a doctorate.
On average, freelancers in Germany who have used SIMATIC S7 in their recent projects have 24 years of professional experience, with a single engagement typically lasting around 4.5 years.
The most common languages among freelancers in Germany who have used SIMATIC S7 in their recent projects are German (100%), English (93%), and French (28%).
The most common industries among freelancers in Germany who have used SIMATIC S7 in their recent projects are Manufacturing (98%), Automotive (59%), and Energy (41%).
The most common business areas among freelancers in Germany who have used SIMATIC S7 in their recent projects are Product Development (98%), Operations (78%), and Information Technology (74%).
Main locations of FRATCH Experts, who have recently used SIMATIC S7
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
