RS-232 Experts in Munich
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Meet FRATCH Experts in Munich, who have recently used RS-232
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
André Howe
Last position:
Linux IT Admin at ReiserST
- Development and maintenance of IT architectures with embedded Linux systems.
- Designing, implementing, and optimizing backend applications and script-based solutions.
- Analyzing and resolving issues, including troubleshooting and user support.
- Developing and implementing security concepts for cloud solutions.
- Administering networks (DHCP, DNS, NTP, VPN).
- Technologies: Linux, PowerShell, Bash, Python, Ansible, Kubernetes, GitLab CI.
- Methods: Kanban.
Paul Privler
Last position:
Independent Consultant – Industry/ Embedded/ IoT at Self-employed
Consulting and support in the areas of sales/business/technology/development/marketing:
- Sales, Key Account Management
- Business Development, business/corporate development
- Partner management
- Program/project management
- Product management & marketing
- Technical marketing, content marketing
- New business, innovation and technologies
Until July 2021 active as advisor and consultant for Mixed Mode in the areas of Key Account Management, Project Management and Business Development.
From Q3/2021 successful delivery of various customer projects in the area of Business Development, corporate development, consulting, coaching, technical content management, sales and marketing:
- EMS service provider and PCB test house, inspection systems: revision of company portfolio and presentation. Integration of specialized distribution for optical inspection systems from Japan: content management, marketing, communication, web, sales automation, lead generation
- Full service marketing agency – technology marketing for industry: expansion of the existing B2B and B2C marketing portfolio with industrial and technology topics: content management, presentation and focus on "technical marketing", web, target market and customer analysis, lead automation, consulting
- Software product manufacturer & software development in the field of security for Embedded & IoT: company alignment and portfolio definition for an IoT and Embedded Security company with a SaaS solution for IoT device management: building a partner network to offer complete Embedded/IoT security solutions, technical content, company alignment and portfolio definition, strategy & planning, target market and customer analysis, product marketing/USPs for the security device management tool "IoT-Suite", standards and regulations for cyber resilience (e.g. CRA, NIS2, RED), web content, SEO, management of marketing and sales agencies, CRM, sales, presentations, trade fairs, congresses, building company webinars & events
- Software engineering service provider/system house for IoT, Embedded, web, mobile and desktop applications: business development, content creation, customer acquisition and sales
- Manufacturer of memory products with security features as an add-on: memory products in standard form factors (SD, CF, SSD...) are extended with security modules such as HSM, TPM or secure elements and thus offer users secure data storage, transfer and access. Also interesting as an upgrade or retrofit solution to meet the coming new regulations and requirements regarding cybersecurity such as CRA, RED and NIS2. Business & New Business Development for the area "Embedded IoT Solutions & Security", sales & marketing. Expansion of the pure semiconductor business to include security solutions and services. Interface between management, marketing, sales and product management. Building business partners, technology partners, system integrators and resellers from the Embedded, IoT, OT and IT environment. Creating reference designs/demos/lighthouse cases and proof of concepts for cross- and reference selling. Co-marketing with security partners. Technical content creation for web, sales and marketing, webinars, social media etc. Networking, participation in trade fairs, congresses and events. Lead generation, qualification, follow-up and conversion to customer. Product definition, USPs, features. Analysis of competitors, market positioning, target markets - strategy, concept and measures - go to market.
- Marketing agency group with sales and management consulting: consulting for companies on restructuring, market analysis and market entry, go-to-market concepts, customer acquisition and expansion, new customer generation, lead generation and management, concepts and execution of campaigns (web, mail, social media, phone outreach in person or with AI voice assistant, webinars...). Processing and managing customer product data for PIM product information and DAM data asset management systems. Focus on customers in the industrial and technology environment with products and services that need explanation.
Daniel Carton
Last position:
Founder & Managing Director at BotCraft GmbH
- Building the company with a focus on connectivity for IIoT and Industry 4.0, iRPA/process automation, advanced robotics and smart systems, sensors and services
- Project management and software architecture for IoT gateway development (since 2020) with protocol translation, IT/OT convergence and GRC
- Developing RPA bots for automating and monitoring industrial processes with an agent-based AI approach (since 2020)
- Implementing unsupervised clustering and anomaly detection for time series data in big data streaming pipelines (since 2021)
- Introducing a Docker-based release train for OTA updates with DevSecOps and CI/CD (since 2018)
Jiri Sostok
Last position:
Quality Manager/Test Management at Noriba GmbH
- Creation of test concepts
- Development of test processes
- Coordination of test case development: stress tests, functional tests, performance tests, high data rate tests, integration tests, etc.
- Hardware testing: FPGA, RF
- Test automation and regression testing
- Ensuring 24/7 operation of the test system
- Analysis & reporting
- Regular coordination of the test team, meetings with other stakeholders
- Communication and coordination with stakeholders and project managers
Janybasha Shaik
Last position:
Diagnostic Software Developer at BMW Group
- Development of the vehicle communication stack in C using AUTOSAR tools for robust inter-module communication within the ECU
- Design, implementation and validation of functions for the electric powertrain, contributing to improved efficiency and reliability
- Definition and verification of system and software requirements, ensuring traceability and compliance with standards
- Collaboration with development partners in North Africa, coordinating architecture, interfaces and integration milestones
- Extension of the communication stack with enhanced security features, increasing resilience against unauthorized access and data manipulation
Discover over 15,000 top freelancers
Statistics of experts using RS-232
Aggregated from the professional profiles of matched freelancers.
Experience
22 years
Position duration
5 years
Positions per freelancer
10
Top business areas
Information Technology, Product Development, Project Management
Top industries
Information Technology, Automotive, Healthcare
Bachelor's degree or higher
100%
Master's degree or higher
100%
Doctorate
17%
Certifications per freelancer
1
Most common languages
German, English, Spanish
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 Munich 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 Munich using RS-232
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
Serial links
RS-232 is a serial communication standard used to move data between devices over short distances. It still appears in control systems, test rigs, scanners, printers, and embedded hardware where a simple, reliable link matters. Many teams also know it as EIA-232 or by the old COM port wording.
Typical work
- Device-to-device serial integration
- Legacy hardware support and migration
- Firmware and driver interface checks
- Troubleshooting baud, parity, and framing issues
- Adapter and gateway setup for newer systems
Skills that matter
Strong professionals understand voltage levels, null modem wiring, pinouts, handshakes, and terminal tools. They can read datasheets, verify signal timing, and trace failures across cables, converters, and host settings. They also know when RS-232 should stay isolated from USB, Ethernet, or RS-485.
When to bring in help
Companies call in freelance expertise when older equipment must stay online, when a new system has to talk to serial devices, or when repeated communication faults block testing. In Munich, this often comes up around industrial sites, lab environments, and equipment suppliers that depend on dependable field connections.
Ecosystem and tools
Good work with RS-232 usually touches a small but practical toolset.
- Terminal software for live message checks
- USB-to-serial adapters and driver setup
- Oscilloscopes or multimeters for signal checks
- Datasheets, pinout diagrams, and protocol notes
What good looks like
A strong specialist does more than make the cable fit. They confirm electrical compatibility, document settings, and leave a setup that other experts can maintain. They also explain limits clearly, especially when a legacy serial link needs to coexist with modern software or remote support.
Frequently asked questions
Curious about RS-232? Here are the answers that come up again and again.
RS-232 is used for simple serial communication between devices such as lab instruments, industrial controllers, barcode scanners, printers, and embedded systems. It is common when a product needs a direct, predictable link and does not need network complexity. Many teams still rely on it for maintenance, testing, and integration of older equipment.
RS-232 is the communication standard, while “serial port” and “COM port” are common ways people refer to the interface on a computer or device. The terms are often used loosely, but they are not identical. A specialist should check whether the hardware really uses RS-232 levels or a different serial standard.
Hire a freelancer when you need to connect legacy hardware, fix unstable serial links, or add serial support to a new system. RS-232 issues often hide in wiring, voltage levels, or configuration details, so a specialist can save a lot of trial and error. This is especially useful when production or test equipment cannot be taken offline for long.
A strong RS-232 specialist usually knows hardware diagnostics, embedded systems, cable pinouts, and basic protocol analysis. Familiarity with USB-to-serial adapters, driver setup, and terminal tools also helps. If the project touches legacy systems, knowledge of serial gateways and isolation practices is valuable too.
RS-232 is simpler than RS-485 and usually easier to debug for point-to-point communication, but it is limited in distance and device count. USB is common for modern peripherals, yet it behaves differently and often needs more software support. The right choice depends on whether you need a direct legacy link, a longer industrial run, or a modern host connection.
Some RS-232 tasks can be done remotely if the setup is documented well and someone on-site can plug in cables, capture logs, or test signals. But work that involves live equipment, wiring checks, or faulty adapters often benefits from an on-site visit in Munich. A good specialist will tell you which parts can be handled remotely and which need hands-on access.
Look for clear questions about pinouts, baud rate, parity, stop bits, grounding, and hardware flow control. A strong RS-232 professional explains the cause of a fault, not just the fix, and leaves behind settings and wiring notes. They should also be comfortable reading datasheets and proving the link with a simple test plan.
Yes, RS-232 still makes sense when a product has to support existing instruments, service ports, or low-complexity control links. It is often chosen for compatibility rather than novelty. A good freelancer can help you keep it stable while bridging it to modern software or networked systems.
The average hourly rate of freelancers in Munich, Germany who have used RS-232 in their recent projects is 93 €, which corresponds to a daily rate of about 746 € based on an 8-hour working day.
Of the freelancers in Munich, Germany who have used RS-232 in their recent projects, 100% hold at least a Bachelor's degree, 100% hold at least a Master's degree, and 17% hold a doctorate.
On average, freelancers in Munich, Germany who have used RS-232 in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 5 years.
The most common languages among freelancers in Munich, Germany who have used RS-232 in their recent projects are German (100%), English (100%), and Spanish (33%).
The most common industries among freelancers in Munich, Germany who have used RS-232 in their recent projects are Information Technology (100%), Automotive (50%), and Healthcare (50%).
The most common business areas among freelancers in Munich, Germany who have used RS-232 in their recent projects are Information Technology (100%), Product Development (100%), and Project Management (100%).
Main locations of FRATCH Experts, who have recently used RS-232
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.
Countries:
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
