UART Experts in Germany
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Meet FRATCH Experts in Germany, who have recently used UART
Giuseppe A.
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
S.r.k. C.
Last position:
Senior Software Engineer at STEPPS GmbH / Motherson Dr. Schneider
Project: Intelligent Light Communication Software — Audi
- Analysis and clarification of system requirements with the customer and translation into software architecture and design decisions
- Architecture and implementation of CAN FD and SPI communication on NXP S32K312
- Design and development of flash bootloader, flash driver, and boot manager for secure OTA-capable updates
- Configuration of the AUTOSAR BSW architecture (Dcm, Dem, NvM, BswM, Os, Mcu, Port, Com stack, Rtc) for portability and maintainability
- Design of the crypto stack (Csm, CryIf, Crypto) for secure flash and diagnostic data; integration of the NXP HSE core and wrapper layer
- Integration of customer-specific modules (Sfd, Ivd, Npm) into the Vector AUTOSAR stack
- Definition of the memory architecture: Memmap, CMake, and linker script configuration
- Leading board bring-up for the Audi light demo platform; implementation of diagnostic routines and identifiers
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.
Muhammad J.
Last position:
Embedded Linux Intern – IoT Sensor Prototype Development at DHL
- Built a modular C++ 20 embedded Linux acquisition system on a Raspberry Pi, synchronizing IMU and dual-camera data streams to sub-millisecond accuracy.
- Integrated retro-reflective and contrast sensors to trigger acquisition and detect gaps between sorter rails.
- Implemented SPI & I2C sensor communication, GPIO interrupt handling with libgpiod, and CSV & JSON output.
- Designed a multi-threaded acquisition pipeline and an SPSC queue between acquisition and writer threads.
- Built a Python/HTML/CSS based web-server and validated the prototype in a DHL warehouse for defect detection.
- Documented software behavior, configuration, and results for maintainable handover and further development.
Alexander D.
Last position:
Systems Engineer at infoteam AG
- Further development and maintenance of data management software in the nuclear sector
- Processing and resolution of problem reports
- Bug fixing and defect remediation
- Performance optimization of legacy code
- Analysis and remediation of security vulnerabilities
- Specification and conceptual design of new features
- Modernization of legacy codebase to C++17
- Technologies & tools: C++, ClearCase, SQL, HTML, CSS, JavaScript, Git, Linux, Solaris, Shell-Script, VisualStudio
- Frontend – Smart Sensor Dashboard: development of a browser-based dashboard for real-time visualization of smart sensor data
- Technologies & tools: TypeScript, Angular, HTML, CSS, JavaScript, MQTT, VisualStudio
- Implementation of embedded safety software for a magnetic levitation elevator system
- Requirements engineering
- Documentation and implementation of safety software for the magnetic levitation elevator control system and the central management system
- Creation and execution of unit tests for all implemented modules
- Technologies & tools: C/C++, Jira, Bitbucket, Confluence, VectorCAST, MISRA-C, Lint, Doxygen, Git
Abdelrahman H.
Last position:
Research Assistant (WHK), FPGA Development – BrassSense Project at HAW Hamburg / Prof. Peter Schulz
- Real-time tone detection on FPGA (~20 ms latency target) using a filter bank architecture with a fuzzy-logic decision stage, avoiding FFT due to its window-length/frequency-resolution tradeoff.
- Responsible for system integration and architecture.
Kacper K.
Last position:
Author
Seqnaut and Sycosm (WIP) – Embedded Audio DSP & Synthesis Platform
- Embedded audio DSP framework — synthesizers, effects, drum machines; modular audio graph
- Sequencing: PianoRoll, StepGrid, MasterClock; 8-voice polyphonic synth; CLI + OSC
- Transient Detector — dual-envelope adaptive threshold, guitar attack detection
- Hardware: Teensy 4.1, custom AFE design tapping BOSS GX-100; MIDI FX integration
Label: C++23, C, Python, CMake, FreeRTOS, Teensy 4.1 (ARM Cortex-M7), Teensy Audio (Stoffregen), DaisySP, I2S/SAI, OSC, MIDI
Kai W.
Last position:
biobedded systems GmbH
- Embedded software development for EMS safety boards in medical technology according to IEC 62304 / ISO 13485
- Technologies: C++, OpenCV, Python, Qt6, JTAG, UART, CMake, IEC 62304, ISO 13485
Peter J.
Last position:
Interim Teamlead at Somnomedics
- Interim Teamlead to setup a project with STM32 and NORA Bluetooth module.
- Customer is planning new hardware to replace existing hardware with Bluetooth communication instead cable connection.
- Project was already started but the requirements were not defined.
- System based on STM32 and Nora B106 CPU.
- Analyzing the existing available code base.
- Checking for possible solutions to get the project working.
- Defining the requirements.
- Applying some rules to improve the team communication.
- Working with the NRF tools to get the custom board based on NORA B106 (NRF5340) working.
- Implementation of a simple device communication by Bluetooth.
- Preparation of documentation.
- Leading communication meetings.
- Conducted discussions with customer.
- Tools used: JIRA, OneNote, Git, Confluence, Nordic NRF, Nora B106.
Valentin R.
Last position:
Freelance Hardware Development Engineer at Swarm Biotactics
PCB design with Altium, MCU Programming, Prototyping
Arne H.
Last position:
Embedded Fullstack Developer at IoT / Infrastructure Automation Sector
- Analysis of legacy codebase and identification of architectural issues, implementing improvements in coordination with the Product Owner.
- Development of clean, efficient, and fully documented code following established software engineering practices and standards.
- Analysis of Erlang components in backend and device layers to provide recommendations for ensuring stable system operation.
- Setup and optimization of CI/CD pipelines on client infrastructure, including testing, debugging, and certificate management quality assurance.
- Participation in planning, design, and implementation of epics and stories according to Product Owner specifications.
- Technical consultation for Product Owner regarding Erlang codebase management and best practices.
- Collaboration with Product Owner, Scrum Master, and development team to ensure timely delivery of features.
- Elixir & Phoenix + PostgreSQL
- Erlang
- IoT
- CI/CD
- Git
- Agile/Scrum
- Docker
- Kubernetes
- Frontend (VueJS)
- Embedded Devices
Meenakumar V.
Last position:
Senior Embedded Technical Manager at IIT Madras Pravartak Technologies
- Led 14 member dev team and delivered postgresql database integration and performance optimization
- Delivered 8 K lines of C code with fewer defects (5 medium to low) in 8 months of development
- Integrate open source pgVector for AI application of the database for exact and nearest neighbor search
Subodh K.
Last position:
Senior Software Engineer at EDAG Engineering GmbH
Project Title: Path Planning Module Development (Oct 2024 – Jun 2025)
Developed path planning module using C++14 and CMake
Implemented gRPC communication protocol between modules
Performed unit testing using Pytest framework and Python
Project Title: HMI Programming for Battery, Fuel Cell Electric Vehicle (Aug 2023 – Sep 2024)
Developed HMI software for BEV/FCEV using Ruby and Crystal for backend
Implemented frontend using Vue.js framework
Conducted bug fixes and simulator testing
Project Title: IFHOST CAN Bus Programming (Jan 2023 – Jul 2023)
Programmed CAN bus software using C and C++
Executed unit tests with Google Test framework
Performed integration testing using CAPL in Vector CANalyzer
Participated in onsite testing
Anup R.
Last position:
Cybersecurity Expert at Autosec Innovation Private Limited
- Technically leading an international team on Aurix 2nd Generation (TC3XX) multicore AUTOSAR architecture, supporting various OEM programs.
- Responsible for customer security requirements analysis, asset identification, and deriving TARA and security concepts at the system level.
- Conducted system and software/hardware vulnerability analysis and implemented cybersecurity solutions using Crypto, HSM, MPU, BSW, OS, and ISO 21434-compliant stacks provided by Vector.
- Led architecture discussions with OEMs and suppliers to align cybersecurity strategies with vehicle platforms.
- Contributed to the design and integration and testing of SecOC, UDS authentication and wireless interfaces like WiFi, Bluetooth, V2X ensuring secure and seamless vehicle access.
- Addressed security challenges such as relay attacks, replay attacks, and credential spoofing through advanced threat modeling and mitigation strategies.
Karl S.
Last position:
Software Consultant, Architect, and Developer at Forklift Truck Manufacturer
Consulting in all areas of software development such as architecture, inter- and intra-process communication, end-to-end validation
Monitoring and measuring resources such as runtime and memory usage
Specification of interface and implementation patterns as well as high-level and detailed specifications
Design and implementation of functional and safety software
Specification of unit tests and support of the integration and software tests in the HIL test department as part of software validation
Development of platform-independent control and regulation software for a fuel cell system (multi-processor 16-bit and multi-core 32-bit)
Development/concept design of state machines
Development/concept design of control algorithms
Development/concept design of inter-process safety communication
Development/concept design of basic software components for parameter, characteristic curve, and error management
Development of vehicle communication based on CAN
Development/concept design of commissioning, maintenance, and service interfaces via CAN and UDS diagnostics
Conducting validation and supporting external validation
Creating specifications for testing
Discover over 15,000 top freelancers
Statistics of experts using UART
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
2.1 years
Positions per freelancer
10
Top business areas
Product Development, Quality Assurance, Information Technology
Top industries
Information Technology, Manufacturing, Automotive
Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
100%
Master's degree or higher
88%
Doctorate
12%
Certifications per freelancer
1
Most common languages
English, German, Spanish
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 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 UART
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
UART 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 (73%)
- Manufacturing (70%)
- Automotive (63%)
- Healthcare (38%)
- Education (30%)
- Aerospace and Defense (25%)
- Energy (25%)
- Telecommunication (23%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Asynchronous Serial Communication in Embedded Systems
Universal Asynchronous Receiver-Transmitter hardware handles asynchronous serial communication across microcontroller platforms. It translates parallel data from system buses into serial streams and vice versa. Embedded hardware relies on this serial interface for simple inter-chip links, board bring-up, and bootloader interfaces.
Core Tooling and Hardware Protocols
Implementing reliable serial links requires precise control over baud rates, parity, and stop bits. Specialists rely on specific lab tooling and interface standards:
- Logic analyzers and digital oscilloscopes for waveform verification
- Transceiver standards including RS-232, RS-422, and RS-485
- FTDI chips and USB-to-UART bridging hardware
- Hardware flow control via RTS and CTS lines
- Circular ring buffers and DMA controllers
Common Industrial Applications in Germany
Industrial automation, automotive manufacturing, and medical technology in Germany deploy asynchronous serial connections extensively. It connects programmable logic controllers to field devices and streams telemetry from edge sensors. Specialists build reliable interfaces that withstand electrical noise in demanding factory environments.
Critical Driver Implementation Challenges
Flawed serial driver design causes buffer overruns, frame errors, and timing jitter. Specialists implement interrupt service routines, direct memory access transfers, and line status monitoring. Proper driver architecture ensures low-latency data reception without stalling real-time operating system task execution.
When Projects Require External Expertise
Engineering teams bring in freelance specialists when standard peripheral drivers fail to meet strict real-time deadlines or suffer packet loss. External talent resolves clock drift across extended temperature ranges, designs custom framing protocols, and integrates communication stacks with hardware-level security.
Distinguishing Attributes of Strong Specialists
Elite specialists look beyond software registers to evaluate hardware schematics, signal integrity, and termination resistance. They diagnose bus contention rapidly, write clean portable C code for bare-metal and RTOS environments, and document clear packet specifications for cross-functional teams.
Frequently asked questions
Not sure where to start with UART? These answers cover the essentials.
A UART block facilitates point-to-point asynchronous data transfer without sharing a clock signal between devices. It is widely used for debugging consoles, flashing firmware, and connecting peripheral modules like GPS receivers and wireless modems to host microcontrollers.
While SPI and I2C use synchronous transmission with shared clock lines, Universal Asynchronous Receiver-Transmitter links depend on matched baud rates and start-stop framing. This eliminates clock routing and reduces wire count, making it ideal for point-to-point links and long-distance serial standards.
Remote firmware development is standard when remote access to test benches, simulators, or hardware-in-the-loop setups is established. For early physical bring-up and physical layer troubleshooting in Germany, teams often arrange initial on-site days before transitioning to remote driver development.
At elevated data speeds, relying solely on byte-by-byte interrupts leads to CPU starvation and overrun errors. Specialists configure direct memory access channels, implement circular ring buffers, and activate hardware flow control lines to keep the serial interface stable.
A proficient specialist should possess deep competence in bare-metal C, register configuration, and RTOS scheduling. Experience with oscilloscope protocol decoders, transceivers for RS-485 networks, and alternative buses like CAN and SPI complements UART expertise.
Industrial installations often encounter common-mode noise and long cable runs. In these settings, raw logic-level UART signals are converted into differential signaling such as RS-485, requiring specialists to manage bus bias, line termination, and electrical isolation.
Most technical specifications, source code, and schematic documentation are written in English. However, working proficiency in German is often beneficial when coordinating with local plant technicians, system integrators, and testing laboratories across Germany.
Evaluate how candidates approach hardware arbitration, framing error recovery, and buffer sizing under heavy bus load. Strong professionals working with serial communication immediately discuss direct memory access architecture, timing tolerances, and real-world signal integrity challenges.
The average hourly rate of freelancers in Germany who have used UART in their recent projects is 86 €, which corresponds to a daily rate of about 691 € based on an 8-hour working day.
Of the freelancers in Germany who have used UART in their recent projects, 100% hold at least a Bachelor's degree, 88% hold at least a Master's degree, and 12% hold a doctorate.
On average, freelancers in Germany who have used UART in their recent projects have 16 years of professional experience, with a single engagement typically lasting around 2.1 years.
The most common languages among freelancers in Germany who have used UART in their recent projects are English (100%), German (95%), and Spanish (18%).
The most common industries among freelancers in Germany who have used UART in their recent projects are Information Technology (73%), Manufacturing (70%), and Automotive (63%).
The most common business areas among freelancers in Germany who have used UART in their recent projects are Product Development (100%), Quality Assurance (90%), and Information Technology (88%).
Main locations of FRATCH Experts, who have recently used UART
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 
Munich Request a free demo
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Philipp Thomaschewski
FRATCH CEO
