MQTT Experts in Munich
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Meet FRATCH Experts in Munich, who have recently used MQTT
Ljubomir Obrenovic
Last position:
Senior Software Test Engineer at Keil KTM GmbH
Temporary employment
- System black-box integration tests (BBIT, IVVQ): Execution of regression, release, acceptance, and compliance tests for safety-critical brake control units in the rail industry
- Software test application & integration: Runtime configuration of software components and libraries, validation of interfaces, configuration dependencies, and component interactions
- Test automation (FEAT framework): Co-development and further development of an automated test framework for test execution, reporting, and result analysis
- Functional safety (SiL4, FuSi): Ensuring compliance with safety requirements, traceability and coverage, as well as standards compliance according to EN50126/28/29
- Test automation for communication components: Configuration and validation of fieldbus (CAN) and Ethernet-based TCMS data communication interfaces (TRDP and CIP)
- Requirements analysis & shift-left (PTC Windchill ALM): Analysis of software and system artifacts to identify gaps, ambiguities, and redundancies early in the SDLC
- Test design & test case development: Derivation of test conditions, coverage strategies, and implementation of data-driven test cases (DDT), including reusable test data fixtures
- CI/CD & automation (Python, PowerShell, Jenkins, SVN): Automation of build, test, and HIL deployment processes as well as integration into CI/CD pipelines
- Test data & configuration management (XML): Maintenance and adaptation of XML test vectors and system configurations with automated integration into test environments
- Non-functional testing: Execution of performance and load tests to assess stability and system behavior
- Agile development & defect management (JIRA, Confluence): Participation in Scrum teams, test coordination, review of test artifacts, as well as defect tracking and root-cause analysis
- Error analysis & debugging (CANoe, CANalyzer): Analysis of errors and message flows across multiple system layers (application to bus)
- Model-based analysis (UML, Enterprise Architect): Specification of SUT/SOW and support for systematic test control
- Process & test documentation: Creation of integration and test documentation according to internal quality and certification requirements
Giuseppe Abrignani
Last position:
Embedded Software Developer at Inheco
- AI Integration (LLM & RAG): Design and build of an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data for the automated analysis of technical documents and error logs.
- Design & Implementation: Design of a robust RS-232/UART communication interface for an SBC-based embedded device to control medical shaker systems.
- Architecture & Protocol Design: Implementation of a highly maintainable software structure (OOP, SOLID) and definition of hardware-close, resilient communication protocols including multithreading and advanced error handling.
- Quality Assurance & DevOps: Test automation using xUnit, integration tests directly on the hardware target, and maintenance of technical documentation according to strict medical technology standards via Azure DevOps.
Label: C#, .NET, LLMs, RAG, n8n, RS-232, UART, Multithreading, async/await, xUnit, gRPC/protobuf, Blazor, MudBlazor, EF Core, Visual Studio 2026, Azure DevOps
Krzysztof Gantzke
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
Thomas Stork
Last position:
Automation Technology Lecturer at HWK Munich and Upper Bavaria
- Training professionals in PLC technology, pneumatics, control engineering, and KUKA robots
- Creating scripts for Siemens systems: STEP 5, STEP 7, TIA Portal, WinCC
- Creating scripts for pneumatics, control engineering, and KUKA robot programming
- Serving on the examination committee for quality assurance in vocational training
- Training and certifying over 500 professionals
Matthias Lang
Last position:
Typescript Fullstack Engineer at Card Complete / Bank Austria
- Designed and developed the "Credit Risk Engine" using Camunda, Node.js and Typescript
- Greenfield project for credit card credit assessment for existing and new customers, including EBA KPIs, SCHUFA and CRIF scorings
- Built and modeled workflows (BPMN) and decision logic (DMN) with Camunda Modeler in close collaboration with stakeholders
- Implemented service tasks, user tasks and jobs with Nest.js, Node.js and Typescript, including exception handling
- Backend-for-Frontend (BFF), frontend with React, Tailwind and Ant Design UI library
- CI/CD with GitLab, Kubernetes/Rancher
Cosmin Iliuta
Last position:
Senior Test Manager – Freelance Contractor at CARIAD SE
- Development and implementation of test strategies and test plans based on ISO-29119-2/3 for Porsche and Audi ISO-26262 compliant projects (functional, integration, system & regression tests).
- Leading cross-functional teams across multiple locations, including resource planning, coordination, and milestone tracking.
- Responsibility for defect management, root cause analyses, and process improvements to improve quality and efficiency.
- Technical analysis of test results and creation of structured test reports and KPIs for stakeholders.
- Reviewing specifications and architecture to validate test readiness and requirement compliance.
- Controlling & monitoring test progress using appropriate metrics.
- Communicating evaluated test results as input for function approvals to function project owners.
- Practical vehicle testing, ECU flashing, and troubleshooting – on-board diagnostics and live tracing.
Applied qualifications:
- SW requirements analysis
- Jira X-Ray
- SOME-IP
- ViWI
- Confluence
- Defect management – KPM
- ODIS
- E-SYS
- Agile methodologies
Matthias Wissen
Last position:
Embedded Software Developer at Schaffarzyk Hardware & Software
Development of the embedded firmware for a smart wearable to capture vital signs with smartphone connectivity:
- Architecture and implementation of the complete embedded firmware
- Connecting and processing various sensors for vital data collection
- Implementing BLE communication for the smartphone app
- Optimizing power consumption and battery life for wearable operation
- Technologies: BLE, Embedded C/C++, sensors, low-power design, Git, nRF52840, GCC, Azure
Daniel Carton
Last position:
Founder & Managing Director at BotCraft GmbH
- Building the company with a focus on connectivity for IIoT and Industry 4.0, iRPA/process automation, advanced robotics and smart systems, sensors and services
- Project management and software architecture for IoT gateway development (since 2020) with protocol translation, IT/OT convergence and GRC
- Developing RPA bots for automating and monitoring industrial processes with an agent-based AI approach (since 2020)
- Implementing unsupervised clustering and anomaly detection for time series data in big data streaming pipelines (since 2021)
- Introducing a Docker-based release train for OTA updates with DevSecOps and CI/CD (since 2018)
Roman Gubarev
Last position:
Integration Project Manager for a new core banking system for financing at Volkswagen Financial Services / Leogy GmbH
Business context:
- Release 1 – direct banking (consumer loans, vehicle financing)
- Integration with a newly developed VWFS customer frontend (checkout)
- Integration with the Check24 portal
- Release 2 – vehicle financing through VW Group dealers
- Integration with the existing dealer system for document submission
- Adaptation of the document processing workflow in the new core banking system
- Integration with the vehicle documents management system
- Integration with a dealer information system
Tasks and responsibilities
- Integration interface between the project developing the new core system and the systems being integrated
- Coordination of integration scenarios, interface content and their technical implementation
- Specification of business and technical requirements for the relevant interfaces
- Planning and tracking of implementation by service providers/development teams
- Management of testing activities, test execution and defect resolution tracking
- Status reporting to stakeholders and program management
Skills and technologies
- Project management, requirements analysis, test management, testing, reporting, stakeholder management
- VTXRM Accipiens, SmartFIX, Jira, Confluence, HP ALM
- APIs, REST, SOAP, OpenAPI, XML, JSON
Andreas Kraus
Last position:
Senior Developer at ioki GmbH, a Deutsche Bahn AG company
- Fullstack development based on Next.js and TypeScript
- Development and optimization of geospatial database queries for PostgreSQL/PostGIS
- Visualization of geospatial data using Mapbox
- Design and execution of load tests and performance optimizations
- Code reviews and documentation tasks
- Technologies: JavaScript, TypeScript, Next.js, React, Zod, tRPC, Storybooks, PostgreSQL/PostGIS, MicroORM, Knex, Material UI, Mapbox, BullMQ, Jest, Playwright, Artillery.io, K6, Sentry, Figma, GitLab, Grafana, GTFS
Konstantin Mirny
Last position:
Architect, Software Developer at IPG Photonics
- Defined initial system and software architecture
- Implemented application modules and hardware control layers
- Built test and mock environments to support validation
- Developed hardware drivers and low-level communication routines
- Authored technical documentation for internal and external stakeholders
- Tools: C/C++, QML, Linux, Windows, Raspberry PI, MQTT, CAN, Serial
Discover over 15,000 top freelancers
Statistics of experts using MQTT
Aggregated from the professional profiles of matched freelancers.
Experience
22 years (Germany: 20 years)
Position duration
5.2 years (Germany: 3.2 years)
Positions per freelancer
11 (Germany: 13)
Top business areas
Product Development, Information Technology, Quality Assurance
Top industries
Information Technology, Automotive, Manufacturing
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
91% (Germany: 88%)
Master's degree or higher
82% (Germany: 63%)
Doctorate
18% (Germany: 6%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Spanish
Speak two or more languages
91% (Germany: 99%)
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 Munich 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 Munich using MQTT
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
MQTT basics
MQTT, short for Message Queuing Telemetry Transport, is a lightweight publish/subscribe protocol for connected devices and systems. It is common in IoT, industrial monitoring, remote control, and telemetry where small messages and stable delivery matter more than heavy payloads.
Where it fits
- Device-to-cloud messaging for sensors and machines
- Event flow between edge systems, apps, and services
- Telemetry, alerts, commands, and status updates
- Broker-based communication with low network overhead
Strong MQTT experts know how to shape topics, choose QoS levels, and keep message traffic predictable. They also understand where MQTT fits better than direct HTTP calls or heavier messaging tools.
Ecosystem and tools
A good setup often includes brokers such as Mosquitto, EMQX, or HiveMQ, plus client libraries in Java, Python, JavaScript, and C. Experts also work with TLS, authentication, retained messages, shared subscriptions, and bridge setups across sites or cloud services.
What freelancers deliver
Companies bring in freelance specialists when they need a clean broker design, device onboarding, topic structure, or help fixing message loss and reconnect issues. In Munich, this often supports industrial systems, automotive suppliers, building automation, and connected products that need reliable local and remote operation.
What strong experts do
- Design topic hierarchies that stay easy to maintain
- Tune QoS, session behavior, and retain rules
- Secure broker access with certificates and auth
- Integrate MQTT with APIs, streams, and databases
- Diagnose latency, disconnects, and delivery gaps
The best professionals document the message model clearly and test how it behaves under load, network drops, and broker restarts.
When to hire
Bring in MQTT expertise when a prototype must become production-ready, when devices need to reconnect cleanly, or when several teams must agree on one message contract. Freelancers are also useful for reviews, migrations between brokers, and short projects that need deep protocol knowledge without a long hiring cycle.
Frequently asked questions
Not sure where to start with MQTT? These answers cover the essentials.
MQTT is used for lightweight messaging between devices, gateways, and backend systems. It is a strong fit for telemetry, command-and-control, alerts, and status updates where network use must stay small and reliable.
MQTT is built for publish/subscribe communication through a broker, while HTTP is usually request/response. WebSockets can also keep a connection open, but MQTT is often easier to manage for device fleets, retained state, and quality-of-service handling.
A company should bring in MQTT expertise when message loss, reconnect behavior, topic design, or broker security starts to matter. It also helps when a proof of concept must be turned into a stable production setup with clear operational rules.
A strong MQTT specialist usually knows broker configuration, TLS, authentication, Linux basics, and at least one backend language. Experience with edge devices, observability, and cloud integration is also valuable because MQTT rarely runs alone.
Not always. MQTT work can often be done remotely if the broker, code, and device setup are accessible, but on-site time in Munich can help with hardware, lab devices, factory networks, or sensitive internal systems.
That depends on the risk in the system, not the label on the profile. MQTT projects that involve simple telemetry may only need practical implementation skill, while security, scaling, and broker migration work call for deeper protocol and operations experience.
Look for clear topic naming, sensible QoS choices, secure broker setup, and tests for reconnects and offline behavior. A strong MQTT freelancer explains trade-offs in plain language and can show how message flow behaves under failure, not only in the happy path.
Yes. MQTT is the common abbreviation for Message Queuing Telemetry Transport, which is the protocol name you will also see in specs, broker documentation, and older project notes. Some people still say the full name when they want to be explicit.
The average hourly rate of freelancers in Munich, Germany who have used MQTT in their recent projects is 93 €, which corresponds to a daily rate of about 742 € based on an 8-hour working day.
Of the freelancers in Munich, Germany who have used MQTT in their recent projects, 91% hold at least a Bachelor's degree, 82% hold at least a Master's degree, and 18% hold a doctorate.
On average, freelancers in Munich, Germany who have used MQTT in their recent projects have 22 years of professional experience, with a single engagement typically lasting around 5.2 years.
The most common languages among freelancers in Munich, Germany who have used MQTT in their recent projects are German (100%), English (82%), and Spanish (27%).
The most common industries among freelancers in Munich, Germany who have used MQTT in their recent projects are Information Technology (91%), Automotive (64%), and Manufacturing (64%).
The most common business areas among freelancers in Munich, Germany who have used MQTT in their recent projects are Product Development (100%), Information Technology (91%), and Quality Assurance (91%).
Main locations of FRATCH Experts, who have recently used MQTT
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 
Stuttgart Request a free demo
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Philipp Thomaschewski
FRATCH CEO
