C Experts in Dortmund
matched in minutes from over 15,000 CVsHire experts who design embedded software, optimize low-level performance and maintain portable C codebases across hardware and operating systems. FRATCH matches you quickly and precisely with vetted, available freelancers.
Meet FRATCH Experts in Dortmund, who have recently used C
Laurin H.
Last position:
Software Architect (Freelance) at Care4Sure
- Delivered MVP-focused full-stack architecture for a health-sector client: Vite/React frontend, backend services on Google Cloud Run, and Supabase for database plus IAM/authentication.
- Supported product requirements engineering and prioritized cost-aware workload placement, implementing browser-side/edge computation where feasible before moving logic to backend services.
Patrik G.
Last position:
Technical Lead Conversational AI at CANCOM
- Technical lead of a team developing agentic chatbot solutions (React, TypeScript, Python, FastAPI)
- Architecture design for multi-LLM dialog systems - focus on maintainability, UX, and autonomous execution
- Stakeholder alignment, CI/CD processes, and AI integration at enterprise level
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
Usama I.
Last position:
Owner / Founder at Wizard Building Technologies
- Established and managed an exporting company specializing in hand tools and building materials.
- Successfully exported goods to Arab countries and worldwide.
- Oversaw all business operations including procurement, sales, and logistics.
- Built and maintained relationships with international clients and suppliers.
Jean Erge E.
Last position:
Engineer - Automation Technology at Ravensburg Milchwerke GmbH
- Plan and design complex production facilities as part of a team
- Prepare and modify electrical circuit diagrams
- Design electrical machine controls and drive technology
- Analyze faults in electronic assemblies
- Create PLC and visualization software as well as process control software
- Identify and implement optimization measures
- Prepare operating instructions
- Ensure IT security for the entire operational technology
- Support building technology
- Technologies: Eplan P8, PCS7, ProLeiT, PlantiT, TIA, S7
Andreas N.
Last position:
Freelancer at Freelance work
Yoav N.
Last position:
Freelance Software Architect at Freelance Consultant
- Various small consultations, e.g. concepts and arcitectures.
- Updating my Matlab, Linux, IPv6, Cyber-Security, C++ (up to 23) and Python skills.
Rosemarie F.
Last position:
Freelance Management Consultant in the Construction Industry at Freelance Management Consultant
- Implemented Agile methodologies to drive AI-enabled process optimization
- Integration of AI-driven solutions with SAP S/4 HANA
- Facilitated the adoption of advanced analytics tools to enhance decision-making
Talha Y.
Last position:
Remote part-time worker & pensioner
- Designing schematics, PCB layout, documentation
- Reviewing, debugging and fixing schematics and PCB layout
- Second source part searching and testing
Ilja L.
Last position:
Software Engineer/Architect (Tech Lead) at Mercedes-Benz Tech Innovation GmbH
- Implementation of various interfaces for subsystems and connection to external devices (cameras, scanners, digital lockers)
- Development of various interfaces in the used cars area
- Realization of various prototypes
- Support in UI/UX and data analytics
- Development of frontend and backend solutions
- Kubernetes migration
- Building CI/CD pipelines
- Communication with the business unit and technical design of new solutions
- Cross-team alignment and coordination within the team
- Overview of the entire technology stack and related systems
- Documentation, preparation, and conducting of reviews
- Supporting the team and coordinating releases and key milestones
Rida Z.
Last position:
Smart Security Coordinator at Pak Arab Oil Refinery (PARCO)
- AI-based monitoring and digital process optimization
- Power BI and dashboard development and deployment.
Jan-Niklas F.
Last position:
Founder at Freundt Consulting GmbH
- Porsche AG (2018 – 12/2019): Design and development of native iOS apps in motorsport/Formula E (e.g. travel app and enterprise warehouse management with SAP integration) and e-mobility (Porsche Taycan; development of a native Microsoft Excel data export).
- StarFinanz / Sparkasse (05/2019 – 07/2021): Worked on the banking app (FinTS, HBCI, PSD2, Apple Pay); implemented Apple Pay; implemented a new TAN method; worked with the FinTS backend (PSD2); opened bank accounts via app (eID, VideoID, Authada); designed a new, modern banking experience.
- eBay Classifieds and Adevinta (07/2021 – 06/2023): Packaging & Pricing (premium features for business customers): e.g. markdown; company page; advertising options; multi-tenant design system based on SwiftUI and UIKit.
- Maschinensucher (07/2023 – 12/2023): Fullstack mobile (Android, iOS) and backend (PHP, Yii, Elastic Search) development; implemented search agent push notifications, InstantSearch, and modernized the design.
- Bankverlag (02/2024 - Present): Consulting and fullstack development of white-label apps (iOS / Android / Java Spring Boot) for private banks.
Ahmed S.
Last position:
Electrical Hardware Designer at Dematic GmbH
- Planning and design of hardware components for automated storage and retrieval machines
- Creation of design drawings and filing of bills of materials in SAP
- Maintenance and modification of old and new circuit diagrams in EPLAN P8
- Maintenance of master data through to the creation of macros for components and assemblies
- Technical coordination with suppliers, customers and other departments
- Support in preparing quotations and quotation calculations
Henning P.
Last position:
Siemens
- Developed a reporting API with RESTful services and Spring Boot
- LDAP integration
- Migrated services to AWS
- Bootstrap
- Frontend development with Angular 14
- JBoss
- DynamoDB
- S3
- Athena
Discover over 15,000 top freelancers
Statistics of experts using C
Aggregated from the professional profiles of matched freelancers.
Experience
21 years
Position duration
2.6 years (Germany: 3.1 years)
Positions per freelancer
15 (Germany: 13)
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Healthcare, Manufacturing
Certification focus areas
Information Technology, Product Development, Logistics
Bachelor's degree or higher
92% (Germany: 90%)
Master's degree or higher
38% (Germany: 65%)
Certifications per freelancer
3 (Germany: 2)
Most common languages
German, English, French
Speak two or more languages
100% (Germany: 98%)
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 Dortmund 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 Dortmund 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
C 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 (64%)
- Healthcare (57%)
- Manufacturing (57%)
- Automotive (50%)
- Education (36%)
- Energy (36%)
- Retail (36%)
- Aerospace and Defense (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Systems Programming
C is a compiled programming language for software that must work close to the hardware. It gives professionals direct control over memory, data structures and execution, making it a strong choice for operating-system components, firmware, device drivers and performance-critical services. C code can run across many processor families and operating systems with careful portability practices.
Embedded Software
C is widely used in embedded products where memory, power and response time are tightly constrained. Experts create firmware for industrial controls, automotive systems, medical devices, sensors and connected equipment. They work with microcontrollers, real-time operating systems, communication buses and hardware debugging tools while keeping behavior predictable.
Toolchain And Ecosystem
A C project depends on more than its source files. Strong specialists understand compilers such as GCC and Clang, linkers, build systems, debuggers and automated test tools. They also work with POSIX APIs, standard libraries, static analysis, cross-compilation and version control. Interfaces with C++, Python or assembly are common in mixed technology environments.
When To Hire
Companies bring in freelance C experts when existing systems need focused technical knowledge or delivery capacity.
- Develop firmware for a new board or device
- Diagnose memory faults, race conditions or timing issues
- Port software to a new processor or operating system
- Refactor legacy code without disrupting production
- Improve build, test and release workflows
Dortmund Collaboration
C specialists support manufacturers, industrial technology companies, mobility suppliers and research-led teams around Dortmund. Remote work is often practical for code reviews, testing and toolchain work, while hardware bring-up and lab debugging may require on-site access. Clear technical English is common; German can help in local production environments.
Signs Of Quality
A capable professional explains ownership, lifetime, concurrency and failure handling in precise terms. They use debuggers, sanitizers, static analysis and tests to find causes rather than mask symptoms. Look for evidence of safe interfaces, documented build processes, repeatable cross-compilation and disciplined review of low-level changes. Experience with the target hardware matters as much as knowledge of the language.
Frequently asked questions
Questions about C? Start with the answers below.
C is used for operating-system components, firmware, device drivers, networking software and other systems where speed and hardware control matter. It is also common inside databases, runtimes and industrial equipment.
C offers a small language, predictable compilation and direct control over memory, but it leaves more safety responsibilities to the programmer. C++ adds abstractions and object-oriented features, while Rust provides stronger compile-time memory guarantees; the right choice depends on existing code, hardware and project constraints.
A strong C freelancer may also understand embedded hardware, Linux or another operating system, microcontrollers, POSIX, networking and real-time behavior. Familiarity with GCC, Clang, Git, CMake, GDB and static analysis is valuable for production work.
The required depth depends on the risk and technical scope. C work involving firmware, concurrency, safety requirements or unfamiliar hardware calls for a professional who can demonstrate similar systems experience, not only small application code.
Much C work can be done remotely through shared repositories, automated builds, remote test devices and structured reviews. On-site collaboration in Dortmund becomes more useful when the assignment involves lab equipment, board bring-up, production machinery or restricted hardware.
Ask how the professional investigates memory corruption, undefined behavior, timing faults and portability problems. A reliable C specialist should describe concrete use of debugging, testing, static analysis and code review rather than relying on intuition.
Yes, when the system is stable, valuable or tied to hardware that would be costly to replace. An experienced C freelancer can document behavior, add tests, isolate unsafe areas and improve the build process before making controlled changes.
They define ownership and lifetime rules, validate inputs, handle errors consistently and limit unsafe interfaces. Strong C work also uses compiler warnings, sanitizers, static analysis, tests and peer review to expose defects early.
The average hourly rate of freelancers in Dortmund, Germany who have used C in their recent projects is 90 €, which corresponds to a daily rate of about 716 € based on an 8-hour working day.
Of the freelancers in Dortmund, Germany who have used C in their recent projects, 92% hold at least a Bachelor's degree and 38% hold at least a Master's degree.
On average, freelancers in Dortmund, Germany who have used C in their recent projects have 21 years of professional experience, with a single engagement typically lasting around 2.6 years.
The most common languages among freelancers in Dortmund, Germany who have used C in their recent projects are German (100%), English (93%), and French (29%).
The most common industries among freelancers in Dortmund, Germany who have used C in their recent projects are Information Technology (64%), Healthcare (57%), and Manufacturing (57%).
The most common business areas among freelancers in Dortmund, Germany who have used C in their recent projects are Information Technology (86%), Product Development (86%), and Quality Assurance (64%).
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.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Essen 
Bremen 
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
