RS-232 Experts in Munich
for reliable device integration, matched in minutes with the power of AIHire experts who design serial communication, integrate industrial equipment and troubleshoot legacy interfaces. FRATCH matches you quickly with vetted, available freelancers whose RS-232 experience fits your technical needs.
Meet FRATCH Experts in Munich, who have recently used RS-232
Giuseppe A.
Last position:
Embedded Software Development at Inheco
- AI Integration (LLM & RAG): Designed and built an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data to automatically analyze technical documents and error logs.
- Design & Implementation: Designed a robust RS-232/UART communication interface for an SBC-based embedded device used to control medical shaker systems.
- Architecture & Protocol Design: Built a highly maintainable software structure (OOP, SOLID) and defined resilient, hardware-level communication protocols, including multithreading and advanced error handling.
- Quality Assurance & DevOps: Automated testing with xUnit, ran integration tests directly on the hardware target, and maintained technical documentation 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 H.
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 P.
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.
Jiri S.
Last position:
Quality Manager/Test Management at Noriba GmbH
- Test concept creation
- Creation of test processes
- Coordination of TC development: stress tests, functional tests, performance tests, high data rate tests, integration tests, etc.
- HW testing: FPGA, RF
- Test automation and regression tests
- 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 the project manager
Daniel C.
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)
Janybasha S.
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Munich are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
RS-232 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 (100%)
- Automotive (50%)
- Healthcare (50%)
- Transportation (50%)
- Manufacturing (50%)
- Telecommunication (50%)
- Biotechnology (33%)
- Government and Administration (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Serial communication basics
RS-232 is a point-to-point serial communication standard for exchanging data between computers, controllers, instruments and other electronic devices. It defines electrical signaling and communication behavior rather than a complete application protocol. Projects often depend on correct baud rate, parity, data bits, stop bits, signal polarity and handshaking.
Where it is used
RS-232 remains common where stable local communication matters more than high throughput or long cable runs.
- Connecting laboratory instruments, scales and measurement equipment
- Integrating industrial controllers, machines and test benches
- Supporting serial consoles for networking and embedded hardware
- Migrating data between legacy equipment and modern applications
Tools and adjacent skills
Strong specialists work across physical interfaces, operating systems and application code. They may use USB-to-serial adapters, terminal programs, oscilloscopes, protocol analyzers and vendor configuration tools. Useful adjacent knowledge includes UART behavior, Modbus RTU, embedded systems, PLC integration, C, C++, Python and industrial networking.
When expertise matters
Companies bring in freelance expertise when a device communicates unreliably, documentation is incomplete or a legacy interface must connect to a current system. Specialists can trace wiring, validate signal levels, capture and interpret frames, and separate hardware faults from software or protocol errors. In Munich, this is especially relevant to manufacturing, automation, laboratory and technical equipment projects.
- Diagnose intermittent communication and framing errors
- Build adapters, gateways and serial data services
- Replace unsupported interfaces without disrupting operations
- Document device commands, wiring and recovery procedures
Delivery and collaboration
A sound RS-232 project starts with device manuals, interface details, message examples and clear acceptance tests. Remote professionals can review code, logs and configuration, while on-site access may be useful for cabling, instruments or production equipment. German and English communication expectations should be agreed early when teams and suppliers work across Munich and other locations.
What quality looks like
Reliable professionals verify both electrical and application behavior. They use controlled tests, clear logs and repeatable setup instructions instead of guessing from a single successful connection. They also account for cable quality, grounding, flow control, timeouts, buffering, error handling and safe recovery after a device or connection restart.
Frequently asked questions
Curious about RS-232? Here are the answers that come up again and again.
RS-232 connects two devices for local serial data exchange. Companies use it with laboratory instruments, industrial machines, weighing systems, embedded hardware, point-of-sale equipment and service consoles, especially when the equipment already exposes a serial interface.
RS-232 is usually suited to a direct connection between two devices over a limited distance. RS-485 supports bus-style networks and stronger noise tolerance, while USB and Ethernet provide different device, distance and integration models; the right choice depends on existing hardware, protocol needs and the operating environment.
A strong RS-232 specialist often understands UARTs, serial drivers, USB-to-serial adapters and protocol analysis. Experience with Modbus RTU, PLCs, embedded software, Python or C/C++ can also help when the interface is part of a larger automation or device-integration system.
The required depth depends on the risk and condition of the system. RS-232 configuration may be straightforward for a documented device, but unreliable legacy equipment, custom protocols, production downtime or electrical troubleshooting calls for a specialist who has handled both hardware signals and application behavior.
Much RS-232 work can be done remotely using source code, manuals, captured traffic, logs and access to a test environment. On-site work in Munich may still be valuable when the specialist must inspect cabling, connect measurement equipment or test machinery that cannot be shipped or accessed remotely.
Share device manuals, connector and wiring information, operating-system details, sample messages and the intended outcome. A serial communication specialist can work more efficiently when the company also explains current failures, safety constraints, available hardware and whether the interface uses a standard protocol or vendor-specific commands.
Look for a clear test plan, captured evidence and documentation that another professional can follow. A capable RS-232 specialist checks signal and protocol behavior, handles timeouts and malformed data, records configuration choices and proves recovery from disconnects or device restarts.
RS-232 remains relevant when instruments, machines or embedded products expose it as their supported interface. Modern systems often connect it through a gateway, USB adapter or serial service, so the key skill is integrating the existing connection safely rather than replacing equipment without a clear business reason.
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 747 € 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
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
