C Experts in Stuttgart
in minutes from over 15,000 CVs with the power of AIHire experts who write fast, reliable C code for embedded systems, drivers, firmware, and performance-critical services. Get vetted, available specialists matched quickly for clean builds, safe memory handling, and hard-to-debug systems work.
Meet FRATCH Experts in Stuttgart, who have recently used C
Lothar Hinsche
Last position:
Solution Manager for PoC investigation and for replacing and refining an existing cloud and IoT power plant control system at Shell AG and NEXT Kraftwerke GmbH
- Investigating the PoC and replacing and refining an existing cloud and IoT power plant control solution for certificate management of renewable energy plants (solar, wind, biomass, etc.) for the largest European renewable energy network operator, including examining the field IoT devices and their integration and network connections, aiming for automated PKI key management.
- Messaging with Kubernetes for large API-connected enterprise applications
- Risk and attack vector analysis, software quality & bug assessments
- Agile workload scheduling via Jira & Confluence
- Evaluation of pub/sub message streams for MQ and Kafka.
- Various tests with “best design approaches” for resilience patterns like circuit breaker designs, throughput measurement and monitoring, bulkhead governors – for robust EA design
- Integration of API management with IBM's API Connect to Kubernetes for platform-agnostic microservices API management designs. Google Apigee
- Solution health check approaches for load burst situations + remedy
- Research and evaluation of potential sub-service providers in the coordinating role as solution manager. CIS20 controls.
- DREAD and STRIDE security assessments.
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
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
Mangal Mahalinge
Last position:
Trainee Product Management at Digitale Leute Schule
- Remote learning with experts and 636 instructional units.
- Product management bootcamp teaching agile methods and software tools for modern product management in complex software projects.
- User experience (UX) · product management · Figma (software) · user-centered design · Scrum · agile project management · Jira · Confluence · product discovery · backlog management · user experience design (UED) · prototyping · lean thinking · product roadmapping · user stories · Miro collaboration platform · application monitoring tools · performance metrics · lean product management · product design kickoff indicators (KPI) & tracking events · product strategy · business modeling · product vision & goals · product discovery.
Michael Berger
Last position:
Program and Project Manager at Independent
- Project management: rollout, migration and implementation of international IT projects
- Sales and business development
- Finance and team management (up to 24 senior consultants) and stakeholder management (including executive level)
- Projects include diverse SAP ERP; SAP S/4HANA; cloud/on-premise, AI, machine learning
- Responsible for project computerized system validation (CSV), QA, project quality
- Implementation of CSV, QA in the project
- Key account management; responsible for all client projects and offerings
- Development of RFIs and RFPs
Deepak Nagarajarao
Last position:
Consultant at Advantest Europe Gmbh
- Develop hardware drivers and middleware using C++11, Java and Python
- Design of various RF features such as deembedding based on stakeholder requests
- Work with multiple teams to design drivers for multiple RF products
- Perform HW control to deliver RF signals and measure modulated response
- Develop RF drivers for generation of low noise signals to test WiFi7 products
- Use digital modulation techniques such as QAM for low level driver development
- Develop low level USB drivers for device enumeration
- Develop drivers for HW relay control of control boards for device testing
- Perform JTAG operations on devices under test
- Use network-based protocols (SFTP, UFTP, FTP, SSH) for control board communication
- Manage HW devices such as BADC and EEPROM for control board maintenance
- Utilize C++11/14/17 features, template metaprogramming and STL
- Employ multithreading for testing and control of multiple HW devices
- Develop tools for deployment of customer OS on control boards
- Perform component and integration tests using CxxTest
- Follow Scaled Agile Framework for software development
- Create detailed design documents using PlantUML
Ahmed Fikri
Last position:
Senior Lead Engineer (Freelance) at Atruvia AG
- Development of a wealth management application for investing in foreign currencies
- Full-stack development with Angular, Spring Boot, OpenShift, Oracle DB, Kafka
- Design and implementation of a microservice architecture
- Integration into Atruvia's BWS system and connection of multiple interfaces between Atruvia and DZ Privatbank
- Greenfield development of the application from the ground up
- Technical responsibility for architecture and interface design
- Close collaboration with business units and external stakeholders
Michael Beck
Last position:
Developer/Consultant at Fresenius Medical Care
- Development of automated end-of-line tests (functional tests) for dialysis machines on a PLC test bench in a production environment
- Introduction of new technology based on Vector vTestStudio, CANoe, and Siemens S7 PLC
- Creating test concepts
- Implementing test cases and libraries in CAPL and C#
- Touch screen emulation and proprietary RPC (Remote Procedure Call) via CAN
- Connecting to the PLC (Siemens Simatic)
- Defining interfaces for device communication (vCDL)
- Defining user interfaces and linking to the frontend (JSON)
- Agile work using DevOps (Azure)
- Skills: CAPL, .NET, C#, vCDL, CANOpen, DevOps, PLC
- Tools used: Vector CANoe 18, vTestStudio 4, MS Azure DevOps, MS Visual Studio 2022, Mosquito MQTT, Git, Siemens TIA Portal
Sri Mojjada
Last position:
Electronics Engineer at Dausinger + Giesen GmbH
- Designs and develops new high-precision analog/digital PCBs for laser control systems using Eagle and KiCad.
- Leads hardware testing, failure analysis, and systems integration for all PCBs within high-power laser systems.
- Conducts component-level debugging on PCBs, tracing faults from power supply rails to communication lines (CAN, SPI) and sensor data (ADC/DAC).
- Identifies burned/damaged components, performs SMD/THT rework and soldering to repair and validate boards.
- Developed an advanced auto-alignment algorithm using Particle Swarm Optimization (PSO) and PID control in Embedded C. This firmware uses a 4-Quadrant-Diode (4QD) PCB’s ADC signals to control piezo mirrors, automatically maximizing the laser’s power position.
- Developed an Autonomous Laser Alignment System using a PIC18F26K83. Implemented a Bayesian Optimization algorithm to maximize optical power by controlling a 2-axis piezo inertia mirror mount.
- Designed a "Virtual Encoder" in software to track position for an open-loop system.
- Configured the Internal ADCC in Burst Average Mode to filter high-impedance photodiode noise.
- Interfaced with a PI E-870.41 driver using a custom 20kHz multiplexed pulse train.
- Developed a robust CAN Bootloader for the dual-core dsPIC33CH, enabling remote firmware updates. Solved deep-level bugs related to hardware timer conflicts, slave core fuse-bit mismatches, and CAN state management.
- Installs and integrates validated PCBs into the final laser systems, verifying all CAN, power, and I/O cabling and debugging any system-level hardware/software conflicts.
- Contributes to the development of the C++/Qt-based system control software, integrating CAN protocols to control and test all PCBs from a unified application.
Ilhan Catak
Last position:
Senior Battery Systems Expert at Freelancer
400V 50A LFP (LiFePO4) 20 kWh home PV solar hybrid ESS energy storage system with inverter, MPPT, charger and battery pack
ESS systems testing and battery systems consultancy for Senec GmbH – Leipzig, Germany
48V 100A and 60V 120A Li-Ion battery pack design and BMS integration project with direct liquid immersion cooling technology for industrial mobile machinery battery pack at HyperX GmbH – Kornwestheim, Germany
Elvir BĂĽyĂĽkbayrak
Last position:
Software Architect and Software Developer at Noctica IT GmbH
- NocTime time tracking, workshop planner, meal delivery service app
- LLM-based chat bot to control the NocTime time tracking system via voice input
- New and further development of customer solutions based on the Noctica SAS app framework
- Technologies: Java 17, Spring Boot, JPA, Hibernate, JavaScript, TypeScript, Angular 20, Angular Material, React, C#, Docker, Bash, Git, GitLab, RedMine, SQL, DBeaver, MariaDB, PostgreSQL, Python, TensorFlow, Ollama, various LLMs
Kavin Trivedi
Last position:
Freelance Software Expert – Functional Safety & AUTOSAR at Bosch
- Development and optimization of software architectures for safety-critical embedded systems in the automotive sector according to ISO 26262 and ASPICE.
- Performing safety analyses (FMEA, DFA, FTTI, HARA) for safety-relevant software.
- Technical consulting and support in acquisition processes for safety-critical software projects.
- Evaluating AUTOSAR architectures and integrating safety-relevant software solutions.
- Collaborating with OEMs and suppliers to ensure compliance with safety standards and process conformity.
- Leading functional safety assessments and ASPICE assessments.
- 2016–2019: Body Computer Module – Role as Lead Software Integrator. Responsible for the software integration of safety-critical ECUs, implementation of AUTOSAR software components, and system integration testing.
- 2019–2022: PowerNetGuardian – Role as Software Architect. Developed a safety-critical software architecture, ASIL decomposition, and created software safety requirements according to ISO 26262 and ASPICE.
- 2022–Present: PowerNetGuardian Plus – Role as Lead Software Architect. Responsible for the overall software architecture, safety and cybersecurity concepts, FMEA analyses, and technical consulting during OEM negotiations.
José Dias Afonso
Last position:
Software Automation Test Internship at PHILIPSMEDIZIN SYSTEME GMBH
- Develop and debug test automation scripts in Python and C# for medical software platforms.
- Support platform testing using HiL systems and Azure-based CI/CD pipelines.
- Create and maintain documentation parsing tools and factory test setup configurations.
Michael Schuler
Last position:
Freelance Consultant & Lecturer at Freelance Consultant & Lecturer
- Implemented and managed successful portfolio management for several companies, overseeing 30+ projects
- Developed and implemented a comprehensive strategy and internal processes for a newly founded cybersecurity agency
- Designed AI use cases for a cybersecurity agency
- Lecturer for Supply Chain Management and Quality, Risk & Sustainability at Rhine-Waal University of Applied Sciences
Harald Bergmann
Last position:
Software Architect at Amoria Bond
- Developed gateway demonstrator
- Defined system requirements for topology and data concentrator
- Designed zonal controllers for Leoni
Discover over 15,000 top freelancers
Statistics of experts using C
Aggregated from the professional profiles of matched freelancers.
Experience
19 years (Germany: 23 years)
Position duration
2.7 years (Germany: 3.1 years)
Positions per freelancer
9 (Germany: 14)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
81% (Germany: 61%)
Doctorate
6% (Germany: 11%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
English, German, French
Speak two or more languages
100% (Germany: 98%)
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 Stuttgart 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 Stuttgart using C
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
Core systems language
C is a low-level language for software that sits close to hardware and the operating system. Companies use it for embedded software, device logic, networking code, runtime components, and other parts where speed, control, and predictable memory use matter.
Common delivery areas
- Embedded firmware for machines, controllers, and sensors
- Drivers and board support code for hardware integration
- Networking and protocol handling
- Performance-sensitive libraries and system tools
- Legacy product maintenance and modernization
Tooling and ecosystem
Strong C specialists work with compilers, debuggers, static analysis, build systems, and platform-specific SDKs. They also know how to use headers, libraries, and interfaces across Linux, Windows, and real-time environments without breaking binary compatibility.
When companies bring help
Teams usually look for freelance C expertise when a product needs stable low-level code, a tricky bug must be traced, or a legacy codebase needs careful change. In Stuttgart, this often fits industrial software, automotive supply chains, and other engineering-heavy environments where on-site or hybrid collaboration can help with testing and hardware access.
What strong specialists do
A strong C professional writes clear code with careful memory management, solid error handling, and disciplined testing. They read existing code fast, document changes well, and understand how to avoid undefined behavior, race conditions, and platform-specific surprises.
Picking the right fit
Look for people who have shipped real C systems, not just classroom examples. Ask for work on ANSI C or ISO C code, build and debugging experience, and examples of how they handled performance, portability, and long-term maintenance.
Frequently asked questions
Quick answers to the questions that come up most around C.
C is used for software that needs direct control over memory, timing, and hardware. It is common in embedded firmware, operating-system components, drivers, communication stacks, and performance-critical libraries. If the code must be small, fast, and predictable, C is often the right choice.
C is smaller and more focused on procedural programming and manual control. C++ adds classes, templates, and a larger standard library, which can help in bigger application layers but also adds complexity. Many teams use C where they need a tighter runtime and easier integration with hardware or existing code.
C is commonly discussed as ANSI C or ISO C, and both terms matter in hiring. What you really want is someone who understands the language standard, compiler differences, and portability issues across platforms. That matters most when the code must run on more than one device or operating system.
A strong C specialist usually also knows debugging, build systems, version control, and at least one target environment such as Linux, embedded RTOS, or Windows. For hardware-facing work, experience with serial protocols, memory maps, interrupts, and low-level testing is a big plus. Tooling like gcc, clang, gdb, and static analysis is often part of the job.
C projects vary a lot, but anything touching hardware, safety, or shared libraries needs someone who has handled production code before. Simple utility work may be enough for a generalist, while legacy systems, drivers, and embedded products call for a specialist with deep low-level experience. The more constraints the system has, the more important that background becomes.
C work can often be done remotely if the environment is stable and the hardware is accessible in other ways. On-site or hybrid work becomes useful when a project depends on lab equipment, prototypes, or close collaboration with engineering teams in Stuttgart. Many companies use a mix of both depending on the testing phase.
Look for code that is easy to read, careful with memory, and defensive about errors. A strong C professional can explain undefined behavior, pointer safety, compiler warnings, and the trade-offs behind each design choice. Good signs also include clear tests, clean build setup, and thoughtful review comments on existing code.
A C freelancer works best when the scope is clear, the target platform is known, and the current codebase is available early. Share compiler details, build steps, interface contracts, and any hardware or simulator constraints. If the project is tied to ISO C rules or strict portability needs, say that up front.
The average hourly rate of freelancers in Stuttgart, Germany who have used C in their recent projects is 87 €, which corresponds to a daily rate of about 700 € based on an 8-hour working day.
Of the freelancers in Stuttgart, Germany who have used C in their recent projects, 100% hold at least a Bachelor's degree, 81% hold at least a Master's degree, and 6% hold a doctorate.
On average, freelancers in Stuttgart, Germany who have used C in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 2.7 years.
The most common languages among freelancers in Stuttgart, Germany who have used C in their recent projects are English (100%), German (94%), and French (22%).
The most common industries among freelancers in Stuttgart, Germany who have used C in their recent projects are Information Technology (72%), Automotive (50%), and Manufacturing (50%).
The most common business areas among freelancers in Stuttgart, Germany who have used C in their recent projects are Information Technology (83%), Product Development (72%), and Quality Assurance (72%).
Main locations of FRATCH Experts, who have recently used C
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.
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!

Berlin
Hamburg
Munich
Cologne
Frankfurt
Dusseldorf
Leipzig
Dortmund
Essen
Hanover
Nuremberg