UART Experts in Germany
in minutes from 15,000 CVs with the power of AI.Hire experts who design serial links, set baud rates and framing, and debug device communication across embedded boards, microcontrollers, and test setups, with fast, precise matching from vetted, available freelancers.
Meet FRATCH Experts in Germany, who have recently used UART
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.
Muhammad Jamshaid Iqbal
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 Döhrmann
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
Kai Wolf
Last position:
Schwarz IT KG
- Migration of the software development process of a medical technology software to C/C++ package manager Conan and development of macOS-specific system components
Abdelrahman Hewala
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 Kowalski
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
Peter Jehle
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 Reuter
Last position:
Freelance Hardware Development Engineer at Swarm Biotactics
PCB design with Altium, MCU Programming, Prototyping
Meenakumar Vaikundam
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 Kumar
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 Raj Dubey
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 Spielberger
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
Alban Tchuinkou
Last position:
C/C++ Developer on AIX Systems for SAP Kernel System Integration at IBM Research and Development
- AIX/Linux system administrator: deployment of LPARs (Logical Partitions) for SAP Kernel Development
- C/C++ SAP kernel development and integration to SAP HANA Database
- C/C++ programming and software integration, support for SAP kernel on AIX system; development and testing on SAP VDI
- Example: development of the ABEC Tool (AIX Build Environment Checker) to create SAP build environments for debugging process and benchmarking
- Benchmarking and test execution of SAP kernels (test from the communication to the SAP HANA Database and to SAP NetWeaver) on AIX
- Automate the SAP kernel build via Jenkins and benchmarking over crontab jobs
- New C/C++ compiler design and testing (based on Clang++ and LLVM)
- Customer ticket handling to resolve SAP kernel bugs and build failures
- SAP kernel development with Rust programming language, migrating some sub-kernel projects from C/C++ to Rust because of Rust's memory safety model, ownership system, and concurrency features
- Refactoring selected components in Rust and integrating them with existing C++ codebase via FFI
Reshmi Suragani
Last position:
Software Engineer at Aumovio Engineering Services (formerly Continental Engineering Services)
- Programming: C/C++, Python, Embedded C, MATLAB
- Feature Owner for SecOC and FvM, leading development, integration, and validation
- Strong ECU hardware understanding for debugging
- Integrated AUTOSAR security modules: CSM, Crypto, CryIf, and HSM
- Hands-on experience with AUTOSAR BSW and MCAL configuration
- Implemented Secure Boot with DMA on Chorus MCU, improving boot performance
- Designed HSM key management and UDS-based key verification features
- Developed Python automation scripts to improve validation efficiency
- Performed ISO 26262 and ASPICE compliant development and testing
- Implemented diagnostics (DIDs, DTCs) for fault detection and reliability
- Strong knowledge of 32-bit MCU architectures and real-time systems
- Proficient in embedded C, compiler/debugger tools, and CANoe
- Experience with TLS, IPsec, key management, and Ethernet switch configuration
- Created architecture and system documentation for cross-team alignment
- Supported production ECU flashing and large-scale deployments
- Conducted functional safety-related tests to ensure system reliability
Discover over 15,000 top freelancers
Statistics of experts using UART
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
2.2 years
Positions per freelancer
10
Top business areas
Product Development, Information Technology, Quality Assurance
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
90%
Doctorate
13%
Certifications per freelancer
1
Most common languages
English, German, 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 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 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the technology
Serial links
UART is a simple asynchronous serial interface used to move bytes between chips, boards, and test tools. It is common in embedded systems, firmware work, bootloaders, consoles, and devices that need a reliable low-pin-count link. Many teams also search for it as Universal Asynchronous Receiver-Transmitter.
What professionals do
- Set baud rate, parity, stop bits, and framing
- Wire TX, RX, ground, and flow-control lines
- Bring up console access and boot logs
- Debug corrupted bytes, noise, and timing issues
- Validate communication with logic analyzers and scopes
Common use cases
Companies bring in UART specialists when a device must speak to another board, a debugger, a sensor, or a maintenance port. It is used in prototypes, production firmware, factory test rigs, and service tools. In Germany, this often comes up in industrial electronics, automotive suppliers, lab equipment, and connected devices.
Tooling and ecosystem
Strong professionals know the protocol and the surrounding stack: microcontroller SDKs, boot ROM consoles, serial terminals, USB-to-UART adapters, and measurement tools. They also understand how UART compares with RS-232, RS-485, SPI, and I2C, and when a USART block or a driver layer changes the design.
When to hire
Bring in outside help when serial output is unstable, a new board will not boot over UART, or documentation does not match real hardware. It also helps during migration, bring-up, regression testing, and support for remote teams. In Germany, on-site work is often useful for hardware access, while debugging and review can stay remote.
What good specialists deliver
A strong UART professional is precise with timing, electrical levels, and board schematics. They write clear notes, trace faults from firmware to hardware, and leave a setup that your team can reproduce. The best work is not just a working link, but a clean path to maintain it.
Frequently asked questions
Not sure where to start with UART? These answers cover the essentials.
UART is used for simple serial communication between chips, boards, and tools. Teams rely on it for boot messages, debug consoles, sensor links, and service ports where a low-overhead connection is enough. It is a common choice in firmware bring-up and hardware validation.
UART is the serial communication logic, while RS-232 is a physical signaling standard. In practice, a UART signal often goes through a level shifter or transceiver before it can talk to RS-232 hardware. That difference matters when a board looks right in software but fails on the wire.
You should hire a UART specialist when a board will not talk to a terminal, boot logs are unreadable, or communication breaks under real hardware conditions. It is also the right move when you need a clean bring-up on a new microcontroller, or when firmware and schematics do not match.
A good UART freelancer usually also understands embedded C, schematics, signal levels, and measurement tools. Knowledge of bootloaders, device drivers, and serial terminal workflows is useful too. For hardware-heavy projects, comfort with logic analyzers and oscilloscopes helps a lot.
UART is simpler and often better for point-to-point serial links, especially when you need a console or debug channel. SPI and I2C are usually better for structured chip-to-chip communication on a board, but they add different wiring and protocol rules. The right choice depends on speed, distance, and how many devices must share the bus.
A basic UART task may need only a focused specialist, but a messy hardware bring-up usually needs someone who has handled both firmware and electrical issues. Projects with custom boards, strange baud errors, or unstable power rails benefit from deeper experience. The hard part is often not the protocol itself, but the full signal path.
Yes, much of UART work can be done remotely if the hardware team can share logs, photos, schematics, and serial output captures. On-site help is better when the problem depends on lab equipment, connectors, or board access. In Germany, many teams mix both: remote analysis first, then an on-site session if needed.
Look for someone who asks about voltage levels, baud settings, framing, and the exact hardware path before they suggest fixes. A strong UART professional explains problems in plain words, verifies with measurements, and leaves behind repeatable test steps. Good answers are tied to real signals, not guesses.
The average hourly rate of freelancers in Germany who have used UART in their recent projects is 85 €, which corresponds to a daily rate of about 679 € 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, 90% hold at least a Master's degree, and 13% 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 2.2 years.
The most common languages among freelancers in Germany who have used UART in their recent projects are English (100%), German (94%), and Spanish (19%).
The most common industries among freelancers in Germany who have used UART in their recent projects are Information Technology (78%), Manufacturing (72%), and Automotive (58%).
The most common business areas among freelancers in Germany who have used UART in their recent projects are Product Development (100%), Information Technology (89%), and Quality Assurance (89%).
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
