C Developers in Germany
from over 15,000 CVs with precise AI matchingConnect with specialists in embedded systems, Linux applications, networking, device drivers and real-time software. FRATCH matches your project with vetted, available freelance C developers quickly and precisely.
Meet FRATCH C Developers in Germany
Tamás N.
Last position:
Embedded MISRA C Developer at DEKRA Arbeit GmbH
Task: Test tool development for Smart-Home IoT-based heating control Test tool development for Smart-Home HVAC heating and ventilation. Eliminating memory leaks in C/C++ within the CAN Analyzer application. Reviewing Python and Tcl/Tk code. Reviewing C-based simulator code for BOSCH Home Comfort cascade heating control using Visual Studio Code and Conan/Conda. Reviewing Delphi application: conversion to 64-bit. Reviewing PyQt6 user interface. SiL testing of domestic water heater control for memory leaks. Stability testing and continuous operation. Migration to Windows 11 24H2. Developing device connectivity with WinSock2 (WSAAPI, recv, send, select) for EMS/CAN IoT communication with C. Testing with virtual machines and Server Manager. Writing reports about the test cases. Logging with the RoboTT framework. Creating test procedure documentation with Docupedia. Bare-metal programming of embedded STM32 Cortex-M and simulation with Renode.io. In-depth familiarization with the SEGGER EmbOS firmware framework and its related system calls. Reviewing MATLAB/Sinumerik .m program files. Implementing redesigned OS schedulers in SEGGER EmbOS.Technologies: Embarcadero RAD Studio 10.2, Visual Studio Code, Sourcetree, Conan, Cmake, Conda, EmbOS, PyQt6, Qt6, Delphi VCL 32-bit, CAN, EMS, Powershell, MingW64, STM32 ARM-Cortex-M4F Renode.io, Windows Server 2022 Standard, RoboTT, IoT
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.
Frank B.
Last position:
System Engineer at Frequentis Comsoft
- Migrate company software to RHEL10
- Development in Bash, Python, C, Ansible
Jens S.
Last position:
Network Technology at ISP, Internet Service Provider, BGP Peering
- Optimization of the transmission media of the data links in the Ruhr area
- Configuration/expansion of switches and routers for an autonomous system AS
- Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
- Laying cables, crimping, antennas, routers, switches
- Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
- Organization and new connection of another BGP peering, data center, NGN fiber optic
- VPN IPSec site connections for 6 sites with PFSense, Fritzbox
- Configuration of WLAN devices (Mikrotik, UBNT
Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP
Alban T.
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
Talat Göktuğ D.
Last position:
Embedded C/C++ Software & Hardware Design Engineer at Fotoniks Military Electro-Optic Systems
- Designed power PCBs, analog video boards, custom Linux-based embedded systems, and NATO-compliant electronics.
- Developed ARM C/C++ firmware for communication and real-time control.
- Implemented UART, SPI, I²C, PWM, ADC, Ethernet and CAN drivers, along with timing-critical modules.
- Optimized layouts for SI, EMI/EMC, protection and thermal performance.
- Contributed to AI-assisted signal processing and target tracking via Linux embedded preprocessing.
Discover over 15,000 top freelancers
C Developers statistics
Aggregated from the professional profiles of matched freelancers.
Experience
20 years
Position duration
1.2 years
Positions per freelancer
27
Top business areas
Product Development, Information Technology, Quality Assurance
Top industries
Information Technology, Manufacturing, Aerospace and Defense
Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
100%
Master's degree or higher
80%
Doctorate
20%
Certifications per freelancer
3
Most common languages
German, English, Spanish
Speak two or more languages
100%
Based on our profile pool as of 21 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this role in Germany 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 for C Developers in Germany
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 21 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
C Developers 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 (83%)
- Manufacturing (67%)
- Aerospace and Defense (50%)
- Automotive (50%)
- Education (50%)
- Healthcare (50%)
- Retail (50%)
- Chemical (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the role
What C Developers Deliver
C developers build software where performance, memory control and hardware access matter. They create embedded firmware, operating-system components, device drivers, networking services and reliable system applications. Their work often covers the full path from technical design to implementation, testing and production support.
Typical deliverables include:
- C modules, libraries and APIs with clear interfaces
- Firmware for microcontrollers, sensors and connected devices
- Linux services, kernel modules and hardware abstraction layers
- Automated tests, build scripts and technical documentation
Core Skills and Tools
Strong C developers understand pointers, memory management, concurrency, data structures and low-level debugging. They work confidently with compilers, linkers, debuggers and build systems, and can read hardware documentation and existing codebases. Depending on the project, they use GCC or Clang, GDB, CMake, Make, Git, Docker and continuous integration workflows.
Relevant specializations include bare-metal development, RTOS environments, embedded Linux, POSIX applications, TCP/IP networking, safety-critical software and performance optimization. Experience with C++ can help when a codebase combines both languages, but it does not replace deep C knowledge.
When Freelance Support Fits
Companies bring in a freelance C developer when a product needs focused engineering capacity without a long hiring process. Common situations include a firmware release, migration to a new microcontroller, a stalled driver project, legacy-code modernization or a difficult production defect. Freelancers also help internal teams establish testing, documentation and maintainable coding practices.
In Germany, projects often involve industrial equipment, automotive suppliers, medical technology, automation, telecommunications and connected products. Remote work suits many software tasks, while hardware bring-up, laboratory testing and device integration may require scheduled on-site collaboration. Clear technical English is common; German can matter when teams, documentation or customer communication require it.
What Sets Strong Professionals Apart
A capable C programmer writes efficient code without sacrificing clarity or maintainability. They define ownership rules, handle failure paths, protect shared data and make resource constraints visible. They also know when a simple implementation is safer than unnecessary optimization.
Before engaging someone, ask for evidence of comparable systems work and discuss the technical risks in your codebase. A strong professional can explain trade-offs, propose a test strategy and identify missing requirements early. They leave behind readable code, reproducible builds and documentation that enables your team to continue the work.
Frequently asked questions
Before you brief your next project: the most common questions about C Developers.
A freelance C developer may build embedded firmware, device drivers, Linux services, networking components or performance-critical libraries. The scope can include architecture, implementation, debugging, testing, build automation and handover to the internal team.
A strong C programmer should understand memory management, pointers, concurrency, data structures and error handling. For embedded work, experience with microcontrollers, RTOS environments, hardware interfaces and debugging tools is especially valuable; Linux projects may require POSIX, networking and build-system knowledge.
A C developer focuses on procedural, low-level programming with direct control over memory and system resources. A C++ developer may use object-oriented and generic programming features, although many production systems combine C and C++, so the right choice depends on the existing codebase and technical constraints.
A C engineer is often a good freelance choice for a defined firmware release, driver implementation, legacy migration or urgent production issue. External support can add specialist knowledge while the permanent team remains focused on product ownership and long-term maintenance.
A C developer can handle architecture, coding, testing and code reviews remotely when the build and test environment is accessible. Hardware bring-up, lab measurements and device integration may require planned on-site sessions, with clear documentation and communication in German or English as needed.
A C programmer commonly works with GCC or Clang, GDB, Git, CMake, Make and continuous integration systems. Embedded specialists may also use vendor toolchains, JTAG debuggers, logic analyzers and RTOS-specific development environments.
Evaluate a C engineer through a focused technical discussion, a review of comparable systems and a small practical task where appropriate. Look for clear ownership rules, defensive error handling, test coverage, reproducible builds and the ability to explain performance and safety trade-offs.
An experienced C developer will clarify the target hardware, compiler and toolchain, operating environment, coding standards, interfaces, timing constraints and acceptance criteria. They should also confirm access to repositories, test equipment, documentation, review processes and the people responsible for technical decisions.
The average hourly rate for C Developers in Germany is 77 €, which corresponds to a daily rate of about 619 € based on an 8-hour working day.
Of the freelancers working as C Developers in Germany, 100% hold at least a Bachelor's degree, 80% hold at least a Master's degree, and 20% hold a doctorate.
On average, freelancers working as C Developers in Germany have 20 years of professional experience, with a single engagement typically lasting around 1.2 years.
The most common languages among freelancers working as C Developers in Germany are German (100%), English (100%), and Spanish (17%).
The most common industries among freelancers working as C Developers in Germany are Information Technology (83%), Manufacturing (67%), and Aerospace and Defense (50%).
The most common business areas among freelancers working as C Developers in Germany are Product Development (100%), Information Technology (83%), and Quality Assurance (67%).
FRATCH C Developers main locations
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
