
Qt Experts
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Meet FRATCH Experts who have recently used Qt
Peter S.
Last position:
Senior ML Engineer & AI Researcher at Anonymous Client
Project: Defect Generation on Test-Bench Images of Metal Surfaces Environment: Automated Visual Inspection (AVI), Metallurgy & Manufacturing
- Objective & Implementation: Designed, architected, and trained Generative Adversarial Networks (Pix2PixHD / SPADE) for image-to-image transformation. Targeted generation of synthetic material defects (e.g., cracks, inclusions, scale) on rough metal surfaces under real test-bench lighting conditions for privacy-compliant and efficient dataset expansion (data augmentation).
- Technical Design: Implemented robust Generative AI and computer vision pipelines in Python and PyTorch. Used semantic segmentation approaches for mask-controlled defect synthesis and subsequent evaluation with EfficientDet object detection models.
- Business Impact: Massive dataset upscaling (10x) without time-consuming and costly physical test-bench runs, while significantly improving the detection performance of automated inspection systems.
Technologies & Skills Used: Python | PyTorch | SPADE | Pix2PixHD | EfficientDet | Machine Learning | Semantic Segmentation | Computer Vision
Matthias S.
Last position:
Software Developer and Consultant at CLADE GmbH
- Analysis of the existing CAN communication between microcontrollers
- Analysis of the sensors used and the measured values collected
- Planning the CAN messages for transmitting the measured values
- Iterative adjustment of the microcontroller code to the new CAN messages
- Cross-compilation from x64 to arm64
Yusuf C.
Last position:
Senior Software Engineer at LeiKon GmbH
- Development of scalable backend applications with C#/.NET and Java
- Design and implementation of distributed microservice architectures
- Development and integration of REST APIs for industrial applications
- Development of modern web applications with React, Angular, and TypeScript
- Implementation of MQTT-based communication solutions
- Integration of industrial protocols such as OPC UA and Modbus TCP
- Development of batch, process control, and HMI components
- Containerization and deployment of applications with Docker
- Conducting code reviews and supporting architecture decisions
- Close collaboration with product owners, QA, and interdisciplinary teams
- Analysis of business requirements and implementation of technical solutions
- Further development of existing software architectures with a focus on maintainability and performance
Technologies: C#, .NET, ASP.NET Core, Java, C++, React, Angular, TypeScript, Vue.JS, MQTT, OPC UA, Modbus TCP, Docker, GitLab, MariaDB, MySQL, Linux
Sven W.
Last position:
Simulation of Photometric-Stereo Setups at ID Engineering
- Role: Simulation Engineer
- Environment: Mechanical Engineering / Visual Inspection
- Goals & Implementation: Simulation of photometric-stereo setups to determine the best positions for cameras and light sources for each specific part.
- Business Value: Enabled a low-cost and scalable solution for determining part-specific hardware setups.
- Tech Stack: Python, Blender
Markus G.
Last position:
Open-Source Software Engineer & Maintainer at Stealth Startup
Independent, part-time open-source engineering focused on build-time tooling for Next.js, React, MDX, and JavaScript/TypeScript compiler pipelines.
Built next-slug-splitter to optimize content-driven Next.js applications. It analyzes MDX content at build time, resolves component usage, and generates route-specific handlers so pages avoid sharing the full catch-all component bundle.
Created supporting plugins and utilities for scoped MDX transformations, nested component dependency resolution, compile-time refinement, safe ESTree evaluation, and object-graph diffing.
Own architecture, API design, implementation, automated testing, npm publishing, documentation, demos, and performance benchmarking.
Building blocks:
remark-scoped-mdx: Context-aware AST transformations with nested scope isolation, typed component registries, and prop inference.
recma-component-resolver: Dependency-graph analysis and selective component forwarding across nested MDX includes.
recma-static-refiner: Build-time prop extraction, schema validation, derivation, and pruning.
estree-util-to-static-value and object-graph-delta: Safe static evaluation and deterministic, cycle-safe structural diffing.
Tech Stack:
Frameworks: TypeScript · Next.js · React · MDX
Compiler tooling: Unified · Remark · Recma · MDAST · ESTree · ts-morph · esbuild
Competencies: Static analysis · AST traversal and transformation · dependency graphs · code generation · schema validation · route and bundle splitting
Tooling: Vitest · tsup · npm · performance benchmarking
Kapil B.
Last position:
Senior Embedded Systems Engineer at BMW group
Testing and verification of high-voltage systems
- Performed integration and system tests for control units in PHEV/EV vehicles using ECU-TEST (TraceTronic), Vector CANoe, CANalyzer, ETAS INCA, Tornado, E-Sys, and EDIABAS.
- Analyzed the interaction of high-voltage control units (including CCU, BMU, inverter, IPB, and IPF) and carried out software updates and flash processes to verify new software versions.
- Worked closely with software, system, and integration teams in an agile development environment to analyze issues and verify new software versions.
Vishnu V.
Last position:
Senior Software Architect at Roche Diagnostics Automation Solutions
- Own the software system architecture for laboratory automation products; specify interfaces across software, middleware, hardware and motor control in a regulated IVD environment.
- Led architecture evaluations and proof-of-concepts for integrating AI capabilities (anomaly detection, predictive maintenance) into lab automation under medical-device quality standards.
- Introduced GenAI-assisted development tools across the team, improving productivity and code review quality.
- Communicate architecture decisions to product and project management; coordinate research and improvement projects with system, electronics and external partners.
Stephan G.
Last position:
Senior Backend Software Developer at Mercedes-Benz Tech Innovations
- Further development and operation of a central backend service for providing vehicle inventory for international Mercedes-Benz online shops
- Further development of a reservation service for vehicles as part of the checkout process
- Design and implementation of a highly scalable end-to-end test architecture with a focus on maintainability, reusability, and a high number of automated test cases
- Development of a multi-layer test infrastructure with a strict separation of test logic and access layers
- Development of an initialization and caching architecture to significantly speed up local and CI/CD-based test runs
- Development of an AI-supported review architecture for automated evaluation and quality assurance of end-to-end tests
- Development of a dashboard for consolidated display of a vehicle context across multiple backend systems, including AI-generated summaries and compact case analyses
- Integration and further development of connections to various reservation systems via Apache Kafka and REST
- Design of new microservices and support with architecture decisions
- Risk analysis and design of microservice migrations
- Technologies: Java, Spring, Spring Boot, Gradle, Maven, Apache Kafka, REST, OpenAPI, Swagger, Github, Confluence, CI/CD, Microservices, AI, LLMs
Nenad B.
Last position:
Safety Video Analytics Project for Airbus at Airbus
- Developed a real-time video analytics proof-of-concept for deployment on NVIDIA Jetson edge devices.
- Implemented DeepStream pipelines including object detection, tracking, human pose estimation, face anonymization, and zone intrusion detection.
- Built a Qt/Python demonstration UI interfacing with the AI pipeline via REST APIs.
Lino G.
Last position:
Senior Data Scientist at VinFast Germany GmbH
- Led strategic software development of fusion algorithms for precise object tracking, trajectory prediction, and environment modeling based on multimodal sensor data (e.g., camera, LiDAR, radar, GNSS, IMU)
- Developed and implemented navigation algorithms for autonomous vehicles, including path planning, obstacle avoidance, and sensor fusion of visual, inertial, and distance-based sensor sources
- Automated extraction and training processes with CI/CD
- Developed and optimized data pipelines and processes in Microsoft Azure using Apache Spark, Databricks, and PySpark
- Developed and optimized embedded software for automotive control units
- Designed latency-critical software for real-time control in robotic systems with RTOS (freeRTOS, SAFERTOS)
- Used the Vector toolchain (CANdela, DaVinci, CANoe) for configuration and diagnostics
- Optimized existing data pipelines and processes (ETL, data warehouse, SQL)
- Developed and trained machine learning models using PyTorch
- Created deep-learning-based object detection and visual SLAM algorithms, trained on combined data from camera, LiDAR, and IMU sensors
- Implemented computer vision algorithms for object detection and classification in robotic systems using OpenCV and YOLO, utilizing synchronized image and depth data
- Implemented behavior-based control systems for autonomous robots using ROS2 Behavior Trees
- Performed testing, release, and integration of sensor fusion algorithms into automotive production programs
- Ensured adherence to proper software development processes and safety standards to guarantee high data quality (MISRA, ISO 26262, ASPICE)
Olfa A.
Last position:
Senior Embedded Software Engineer / Function Developer at Enginius GmbH (FAUN GROUP)
- Developed model-based software for hydrogen tank control units using MATLAB/Simulink, aligned with ISO 26262 functional safety requirements
- Performed system integration and software verification across MIL and HIL environments using dSPACE and Vector tools
- Defined software architecture (SADS) with interface specifications for CAN, analog, and digital communication protocols
- Generated production-ready embedded C code using Simulink Embedded Coder; created and maintained A2L calibration files with CANape
- Designed and executed MIL/HIL test cases ensuring full coverage of functional and safety requirements
- Implemented CODESYS PLC applications on IFM ecomatController; applied CAN and Modbus TCP/IP communication protocols
- Contributed to HMI/UI development using Qt/C++ on Linux (Qt Creator)
- Applied agile Kanban workflow with Git-based version control (Bitbucket)
Tools: MATLAB, Simulink, CANape, CANalyzer, PCAN-View, Embedded Coder, CODESYS, TTC2038/PXROS, Codebeamer, Jira, Git
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.
André H.
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.
Krzysztof G.
Last position:
C++ Software Developer at HENSOLDT AG
Development of new simulator features and extension of existing modules using C++.
GUI design and implementation with Qt for Windows, including redesigns to improve usability and workflow.
Maintenance and expansion of existing codebase: refactoring, bug fixes, and modularization to support new capabilities.
Version control using Git.
Performance optimization of simulation to meet real-time constraints.
Creating and maintaining documentation: technical comments, design docs, API references and user manuals.
Led a redesign that improved operator workflow and reduced task completion time.
Extended simulator architecture to support multiple new scenario types while preserving backward compatibility.
Implemented refactoring and modularization that simplified maintenance and accelerated feature delivery.
Technologies: C++03, Qt4.6, QMake, Git, V-Model, Windows
Omar T.
Last position:
Founder & Technical Solutions Consultant at TAG Pro
- Engaged by MILLA Group (autonomous shuttle manufacturer) to integrate and harden a safety-critical AD stack toward production: audited the architecture across perception, HD mapping, and positioning, and delivered a gap analysis with remediation roadmap.
- Lead root-cause analysis of sensor failures across a deployed shuttle fleet; shipped remediation in a versioned AD release and drove vehicle-level field validation at multiple operational sites.
- Design and implement interfaces between perception, localization, and vehicle systems in C++; identify integration risks and drive resolution of cross-subsystem technical issues across the AD stack.
- Standardized the client's software development lifecycle by introducing Agile workflows and CI/CD pipelines, shortening integration and validation cycles.
Discover over 15,000 top freelancers
Statistics of experts using Qt
Aggregated from the professional profiles of matched freelancers.
Experience
22 years

Position duration
2.9 years

Positions per freelancer
16

Top business areas
Information Technology, Product Development, Quality Assurance

Top industries
Information Technology, Manufacturing, Automotive

Certification focus areas
Information Technology, Product Development, Quality Assurance
Bachelor's degree or higher
98%
Master's degree or higher
68%
Doctorate
10%

Certifications per freelancer
1

Most common languages
German, English, French

Speak two or more languages
96%
Based on our profile pool as of 26 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology 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 using Qt
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 26 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Qt 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 (87%)
- Manufacturing (79%)
- Automotive (60%)
- Healthcare (47%)
- Education (42%)
- Banking and Finance (33%)
- Telecommunication (31%)
- Aerospace and Defense (27%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Cross-Platform Native Development with Qt
The Qt framework serves as an industry standard for writing high-performance, cross-platform graphical user interfaces and native applications. It enables single-source codebases to run across Windows, Linux, macOS, Android, and embedded operating systems without sacrificing runtime execution speed or native platform aesthetics.
The Qt Framework Architecture and Tooling
Modern delivery revolves around Qt Quick and QML for responsive interfaces, alongside core C++ for backend business logic, device I/O, and computational workloads. Qt Creator serves as the native IDE, while CMake drives modular compilation pipelines across complex embedded toolchains and desktop distributions.
Primary Industry Use Cases
- Automotive digital cockpits, instrument clusters, and in-vehicle infotainment displays
- Medical device touchscreens requiring strict reliability, deterministic rendering, and certification
- Industrial human-machine interfaces (HMI) deployed on headless embedded Linux appliances
- Heavy desktop productivity suites requiring advanced 2D/3D visualization through Qt Quick 3D
Core Technical Capabilities
Effective specialists understand low-level signals and slots, custom model-view architectures, and multithreaded processing to keep rendering loops locked at high frame rates. They balance memory footprints on resource-constrained embedded targets and manage native OS integration points through platform-specific hooks.
Signals Demanding Specialized Freelance Support
- Sluggish QML user interface framerates and memory leaks in long-running processes
- Upgrades from older Qt 5 codebases to modern Qt 6 architectures
- Hardware bring-up challenges integrating Wayland compositors on custom System-on-Chips
- Bridging native C++ services with dynamic declarative interfaces smoothly
Distinguishing Proven Qt Specialists
Top practitioners demonstrate deep familiarity with both declarative UI patterns and low-level graphics subsystems, including OpenGL, Vulkan, and Qt Shader Tools. They structure clean separation between presentation and native logic, ensuring systems remain maintainable, testable, and robust against operating system updates.
Frequently asked questions
Before you brief your next project: the most common questions about Qt.
Qt Widgets provides traditional, desktop-centric UI elements rendered using native platform drawing routines, ideal for standard multi-window applications. Qt Quick uses the declarative QML language and a hardware-accelerated scene graph, making it the preferred choice for fluid animations, touchscreen interfaces, and modern embedded displays.
While Electron requires a full Chromium runtime and Flutter brings its own rendering engine, The Qt framework executes compiled native C++ code with minimal overhead. This gives it a significantly smaller memory footprint, direct hardware peripheral access, and unmatched efficiency on resource-constrained embedded systems.
Look for strong foundations in modern C++, practical expertise with QML and Qt Quick, and deep knowledge of multithreading and event handling. Candidates working on embedded products should also understand Qt integration with Yocto Project Linux builds, cross-compilation toolchains, and hardware graphics layers.
Migrating to Qt 6 requires adjusting to the modern CMake build standard, updating deprecated classes, and adopting the new hardware-agnostic graphics architecture via the Rendering Hardware Interface (RHI). Experienced specialists identify API breaks early and update core custom render code systematically.
Yes, remote Qt framework projects succeed through remote hardware test benches, virtualized Linux environments, and mock APIs that simulate device peripherals. Desktop application development requires standard remote Git workflows and continuous integration environments running multi-platform automated tests.
Official bindings like Qt for Python (PySide) let teams rapidly construct functional interfaces and internal automation tooling using Python. However, performance-critical backends, safety-critical medical instrumentation, and constrained embedded systems generally rely on C++ underneath.
Organizations frequently bring in freelance Qt specialists to overcome specific architectural bottlenecks, such as optimizing UI frame rates or modernizing build toolchains. Freelancers also provide crucial capacity during initial device bring-up and custom hardware transitions where specialized domain knowledge is needed immediately.
Watch for poor separation between presentation logic and backend services, such as heavy business logic placed directly inside QML files. Quality The Qt Company standard architectures maintain strict boundaries, leverage profiling tools like QML Profiler and Valgrind, and avoid blocking the main graphical user interface thread.
The average hourly rate of freelancers who have used Qt in their recent projects is 89 €, which corresponds to a daily rate of about 715 € based on an 8-hour working day.
Of the freelancers who have used Qt in their recent projects, 98% hold at least a Bachelor's degree, 68% hold at least a Master's degree, and 10% hold a doctorate.
On average, freelancers who have used Qt in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 2.9 years.
The most common languages among freelancers who have used Qt in their recent projects are German (100%), English (96%), and French (16%).
The most common industries among freelancers who have used Qt in their recent projects are Information Technology (87%), Manufacturing (79%), and Automotive (60%).
The most common business areas among freelancers who have used Qt in their recent projects are Information Technology (100%), Product Development (96%), and Quality Assurance (75%).
Main locations of FRATCH Experts, who have recently used Qt
Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
In Austria our freelancers and interim experts support companies from Vienna to Graz — on-site where your project needs them, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Across Switzerland our specialists are active in Zurich, Geneva, Basel and Bern — working on-site or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Countries:
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