C Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used C
Deepak M.
Last position:
Lead ML Platform Engineer at Billie GmbH
- Mentor team of 6 ML platform engineers through weekly 1:1s, technical design reviews, and best practices, improving team velocity by 35% through structured sprint planning and skill development programs
- Define 2025–2026 ML platform roadmap in collaboration with Data Science, Cloud Engineering, and Product teams, prioritizing automated model governance, cost attribution systems, and multi-environment deployment strategies
- Partner with Data Science, SRE, and Product stakeholders to align ML platform capabilities with business objectives, reducing data scientist deployment friction by 60% through self-service platforms
- Architect and deliver production-grade MLOps platform supporting 50+ models in production with automated promotion pipelines, versioning, and rollback capabilities, achieving 99.5% platform uptime SLA
- Design distributed ML pipeline architecture using Metaflow and Argo Workflows (Vertex Pipelines-compatible), reducing model training time by 30% and deployment cycles from 2 weeks to 3 days through full CI/CD automation
- Build containerized ML services on Kubernetes with auto-scaling policies, resource quotas, and multi-tenancy isolation, optimizing infrastructure costs by $180K annually (25% reduction)
- Implement monitoring, alerting, and performance tracking using Prometheus, Grafana, and custom instrumentation, reducing model debugging time by 50% and establishing model performance SLOs
- Lead development of RAG-based document intelligence platform using LangChain, LangGraph, and vector databases, implementing agentic AI workflows for automated financial document processing
- Implement Infrastructure-as-Code using Terraform for reproducible environment provisioning and GitOps workflows, reducing infrastructure drift incidents by 80%
- Design role-based access control for ML platform, implement model lineage tracking, and establish audit trails for regulatory compliance aligned with enterprise IAM best practices
Sunish B.
Last position:
AtlasMind - Production AI assistant for Jira at Mercedes Benz Innovation Labs Gmbh
- Converts natural language into JQL using RAG and pgvector. Returns structured JSON with a query, chart spec, and plain-text answer. A two-stage router answers general questions without touching the JQL pipeline at all.
- Interchangeable LLM backends: Ollama, vLLM, Groq, Anthropic Claude, AWS Bedrock - switchable at runtime, no code changes. Self-healing JQL: on Jira validation failure, feeds error back to LLM, retries up to 4 times. OCI Vault for secrets. Deployed on Oracle Cloud A1 with GPU inference over Tailscale private network. Open source.
Wolfram K.
Last position:
AI / Machine Learning Engineer (Projects & Applied AI) at UNIVERSITÉ PARIS 1 PANTHEON-SORBONNE & LIORA
- Designed and implemented a hybrid recommendation system (content-based + collaborative filtering)
- Built end-to-end ML pipelines including data processing, feature engineering, model training, and evaluation
- Developed RAG-based LLM systems using LangChain and vector databases for semantic search and knowledge retrieval
- Established MLOps workflows with MLflow for experiment tracking, versioning, and deployment readiness
- Implemented deep learning models (computer vision & classification) using PyTorch and TensorFlow
Jevgeni B.
Last position:
orderbird
- Supported orderbird in setting up and driving an internal advanced analytics project for the internal customer dashboard
- Structured the internal dashboard project for later development
Diogo S.
Last position:
Backend Engineer and AI Orchestrator at Stealth Startup
- Providing freelance software engineering and AI orchestration services for an early-stage startup.
- Designing and coordinating autonomous AI systems capable of executing complex, multi- step workflows.
- Developing customer-facing pilots and proof-of-concept solutions.
- Participating in meetings with customers and investors to support product development and business discussions.
Ola V.
Last position:
IT Lecturer
- IT training in theory and practice for IT specialists in application development and system integration
Valentin R.
Last position:
Freelance Hardware Development Engineer at Swarm Biotactics
PCB design with Altium, MCU Programming, Prototyping
Mark W.
Last position:
Independent IT/AI Consultant at Freelance
- IT consulting, coaching, and implementation with a focus on AI
Toralf C.
Last position:
IT Consultant in PKI Software Development at BWI
- Implementation of a full-stack application with Angular as the frontend framework and Java as the backend language
- Use of the Swagger OpenAPI specification for REST communication between the frontend and backend applications
- Control of a card printer via the Nexus Card SDK framework
- Design and implementation of card management software with a web interface and a JavaFX module for printer monitoring
- Use of Cucumber tests for test automation and creation of test artifacts to test outside the development environment
- Use of Wireshark for network investigations to analyze the API of a third-party product and to monitor the REST API of the self-developed software
Ursula R.
Last position:
Sabbatical with Training at Own Sabbatical
Vili D.
Last position:
Technical Lead, Data Engineer at Mercedes-Benz Consulting
- Optimized the data architecture (medallion) to better decouple processing stages and improve transparency and reproducibility
- Ensured technical quality of data processing in Databricks by introducing schema enforcement, data quality checks and a structured data architecture
- Orchestrated pipelines with Azure Data Factory
- Professionalized and automated the development and deployment process by integrating Git and GitHub Actions
- Led the Data Engineering team (3 members) in a functional role
- Conducted workshops to optimize and stabilize the data platform and the development process
- Collected and prioritized new requests, maintained the product backlog
- Technologies: Microsoft Azure (Data Lake, Data Factory), Databricks, Apache Spark (PySpark), Python, SQL, Git, Confluence, Power BI, Power Apps, Dataverse, MS SharePoint, Mural
Igor K.
Last position:
Freelance Software Developer
Hendrik W.
Last position:
Software Test and Maintenance Support at Anton Paar ProveTec GmbH
- Add/create test specifications
- Conduct regression tests
- Conduct release tests
- Analyze Jira tickets
- Identify software defects and fix them with C#
G P.
Last position:
Oracle Apps Technical Consultant, Oracle EBS to Oracle Fusion SCM Migration Specialist at LTIMindtree India PVT LTD.
- Client: Terex Corporation
André G.
Last position:
IT Consulting Project Management / Engineering Subproject Management at T-Systems (on assignment for government agencies)
- Projects for federal networks (NdB).
- CR management, EoL change requests, design and documentation according to ITSCM.
- Data center planning.
- Project management and engineering subproject management.
- Software development for virtual server environments according to BSI.
Discover over 15,000 top freelancers
Statistics of experts using C
Aggregated from the professional profiles of matched freelancers.
Experience
17 years (Germany: 21 years)
Position duration
2.5 years (Germany: 3.1 years)
Positions per freelancer
12 (Germany: 13)
Top business areas
Product Development, Information Technology, Research and Development
Top industries
Information Technology, Education, Automotive
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
93% (Germany: 90%)
Master's degree or higher
78% (Germany: 65%)
Doctorate
21% (Germany: 11%)
Certifications per freelancer
2
Most common languages
English, German, French
Speak two or more languages
98%
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 Berlin 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 Berlin 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 19 Sep 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 (84%)
- Education (46%)
- Automotive (39%)
- Manufacturing (39%)
- Healthcare (38%)
- Banking and Finance (30%)
- Professional Services (30%)
- Telecommunication (30%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Foundational systems and bare-metal programming
The C programming language remains the foundation of operating systems, hardware drivers, and mission-critical embedded software. Companies rely on ANSI C and ISO C standards when direct hardware control, minimal memory footprints, and predictable execution cycles are strictly required.
Core use cases for low-level software
- Writing Linux kernel modules, board support packages, and peripheral drivers
- Implementing microcontrollers firmware using FreeRTOS, Zephyr, or bare metal
- Engineering high-throughput networking stacks and low-latency database engines
- Porting legacy POSIX C codebases to modern architectures
Toolchains, debugging, and verification ecosystems
Seasoned professionals master toolchains like GCC, Clang, and LLVM, combined with build automation via Make and CMake. They isolate memory leaks and undefined behavior through Valgrind, AddressSanitizer, and GDB, ensuring mission-critical reliability before deployment.
Hardware integration and cross-platform architecture
Working with this language requires deep familiarity with processor architectures like ARM Cortex, RISC-V, and x86. Specialists understand cache coherence, volatile access, and interrupt servicing, enabling tight integration between silicon and high-level software interfaces.
Why Berlin companies source external expertise
Berlin hosts an expanding cluster of IoT hardware startups, automotive suppliers, and industrial automation firms. Teams in the region bring in contract specialists to resolve performance bottlenecks, modernize legacy C codebases, or accelerate hardware prototype validation without long hiring delays.
Profile of an elite low-level specialist
Top specialists write readable, idiomatic code while respecting strict hardware constraints. They navigate MISRA C guidelines for safety-critical environments, handle concurrency without race conditions, and architect robust abstractions over bare silicon.
Frequently asked questions
Not sure where to start with C? These answers cover the essentials.
Companies implement operating system kernels, bootloaders, embedded firmware, and real-time industrial controllers using C. It also powers the core engines of database management systems, network appliances, and language runtimes that require zero-overhead memory access.
While C++ and Rust provide higher-level language abstractions, C maintains the smallest runtime footprint and possesses unmatched compiler support across obscure microcontrollers. Many teams prefer the predictability and simplicity of the C language for strict, resource-constrained microcontrollers.
A qualified C specialist should demonstrate proficiency with build systems like CMake, low-level debuggers such as GDB, and memory sanitizers. Deep comprehension of hardware interfaces, including SPI, I2C, and UART protocols, is equally critical for embedded deliverables.
Strong practitioners working in ANSI C adhere to rigorous standards such as MISRA to eliminate undefined behavior. They integrate static analysis suites, employ automated fuzz testing, and validate code execution using runtime sanitizers to prevent buffer overflows.
Most C programming tasks, including kernel module design, protocol implementation, and simulation, run efficiently in remote setups. When custom hardware testing is required, specialists utilize remote hardware testbenches, logic analyzer streams, or on-site visits in locations like Berlin.
Experienced ISO C professionals understand hardware registers, assembly output, and compiler optimization flags at a fundamental level. They write modular, maintainable software that prevents concurrency bugs and respects strict real-time deadlines.
Berlin features a vibrant ecosystem of connected device manufacturers, automotive mobility labs, and robotics ventures requiring C. Freelancers in the city often collaborate with engineering hubs on hardware bring-up and low-latency systems infrastructure.
Most tech organizations in Berlin operate in English for day-to-day firmware development and architecture reviews. However, certain local industrial automation and medical technology firms value C experts who also communicate fluently in German.
The average hourly rate of freelancers in Berlin, Germany who have used C in their recent projects is 93 €, which corresponds to a daily rate of about 747 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used C in their recent projects, 93% hold at least a Bachelor's degree, 78% hold at least a Master's degree, and 21% hold a doctorate.
On average, freelancers in Berlin, Germany who have used C in their recent projects have 17 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers in Berlin, Germany who have used C in their recent projects are English (98%), German (97%), and French (25%).
The most common industries among freelancers in Berlin, Germany who have used C in their recent projects are Information Technology (84%), Education (46%), and Automotive (39%).
The most common business areas among freelancers in Berlin, Germany who have used C in their recent projects are Product Development (85%), Information Technology (84%), and Research and Development (57%).
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.
Hamburg 
Munich 
Cologne 
Frankfurt 
Stuttgart 
Dusseldorf 
Leipzig 
Dortmund 
Essen 
Hanover 
Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
