MQTT Expert in Munich
for connected devices, matched in minutes with vetted and available specialistsHire experts who design reliable messaging flows, connect IoT devices, and integrate MQTT brokers with cloud and industrial systems. FRATCH matches you quickly and precisely with vetted, available freelancers who fit your technical needs.
Meet FRATCH Experts in Munich, who have recently used MQTT
Ljubomir O.
Last position:
Senior Software Test Engineer at Keil KTM GmbH
Temporary employment
- System black-box integration tests (BBIT, IVVQ): Execution of regression, release, confirmation and conformity tests for safety-critical braking control units in the railway 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 conformity with 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 and 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 adjustment 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): Work 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 levels (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 A.
Last position:
Embedded Software Development at Inheco
- AI Integration (LLM & RAG): Designed and built an internal intelligent RAG system (Retrieval-Augmented Generation) based on LLMs, n8n, and vector data to automatically analyze technical documents and error logs.
- Design & Implementation: Designed a robust RS-232/UART communication interface for an SBC-based embedded device used to control medical shaker systems.
- Architecture & Protocol Design: Built a highly maintainable software structure (OOP, SOLID) and defined resilient, hardware-level communication protocols, including multithreading and advanced error handling.
- Quality Assurance & DevOps: Automated testing with xUnit, ran integration tests directly on the hardware target, and maintained technical documentation 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 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
Matthias L.
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 I.
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
Andreas K.
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
Matthias W.
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
Thomas S.
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
Daniel C.
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 G.
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
Konstantin M.
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: 89%)
Master's degree or higher
82% (Germany: 65%)
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Munich 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 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 29 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
MQTT 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 (91%)
- Automotive (64%)
- Manufacturing (64%)
- Education (36%)
- Energy (36%)
- Banking and Finance (36%)
- Healthcare (36%)
- Government and Administration (36%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What MQTT is
MQTT, short for Message Queuing Telemetry Transport, is a lightweight publish-subscribe protocol for sending messages between connected devices and services. It uses a broker to route messages through topics, making it suitable for devices with limited bandwidth, memory, or processing power. MQTT supports reliable communication across unstable networks.
Where it runs
MQTT is used in industrial IoT, smart buildings, connected vehicles, energy systems, logistics, and consumer devices. A device can publish sensor readings while applications subscribe to only the topics they need. In Munich, specialists may support projects that connect manufacturing equipment, building systems, or mobility services across local and cloud environments.
Ecosystem and tooling
Experts work with brokers such as Eclipse Mosquitto, EMQX, HiveMQ, and AWS IoT Core. They configure topic structures, access control, retained messages, quality-of-service levels, persistent sessions, and TLS certificates. Common adjacent technologies include Docker, Kubernetes, Node-RED, REST APIs, time-series databases, and cloud IoT services.
- Design topic hierarchies and message contracts
- Configure brokers, bridges, and client authentication
- Connect edge devices to cloud applications
- Monitor message delivery and broker health
When companies need specialists
Freelance expertise helps when a proof of concept must become a secure production system, when an existing broker needs migration, or when device communication is unreliable. Specialists can also review architecture before a large rollout, establish monitoring, and document operational procedures. They clarify how MQTT should work alongside HTTP, WebSockets, or industrial protocols.
What strong experts deliver
Strong professionals understand both protocol details and the systems around them. They choose suitable quality-of-service settings instead of applying them blindly, plan for reconnects and offline devices, and protect credentials and message paths. Their deliverables may include broker configuration, client integrations, infrastructure definitions, test plans, dashboards, and clear runbooks.
Working with a freelancer
MQTT projects can be handled remotely when requirements, device access, and test environments are well prepared. On-site work in Munich can help with factory equipment, gateways, or commissioning tasks that cannot be reproduced remotely. Agree early on access, language expectations, supported devices, broker ownership, and how production incidents will be handled.
Frequently asked questions
Not sure where to start with MQTT? These answers cover the essentials.
MQTT is used to exchange small messages between devices, applications, and services through a broker. Typical examples include sensor telemetry, machine status, device commands, home automation, fleet tracking, and energy monitoring.
MQTT uses publish-subscribe messaging, while HTTP commonly follows a request-response model. MQTT can reduce communication overhead and handle intermittent connections well, whereas HTTP may be the clearer choice for web APIs, document transfer, or direct resource requests.
A strong MQTT professional should understand networking, TLS, Linux, containers, and cloud services. Experience with embedded systems, gateway software, databases, observability, and protocols such as Modbus or OPC UA is valuable for industrial and edge projects.
The right level depends on the system’s risk and scope, not simply on the protocol. A small prototype may need solid client and broker knowledge, while a production deployment calls for experience with security, scaling, offline behavior, monitoring, upgrades, and incident recovery.
MQTT can connect devices, local brokers, edge gateways, and cloud services in one architecture. Bridges, secure client connections, and carefully designed topic permissions help separate local operations from cloud processing without exposing devices unnecessarily.
Remote work is practical when the specialist can access brokers, device simulators, logs, and deployment environments. On-site collaboration in Munich may still be useful for factory networks, physical gateways, commissioning, or tests involving equipment that cannot be shipped or simulated.
Ask the specialist to explain topic design, delivery guarantees, authentication, reconnect behavior, and failure handling in concrete terms. For MQTT, quality also shows in reproducible tests, least-privilege permissions, useful monitoring, and documentation that another professional can operate.
The best MQTT broker depends on throughput, tenancy, deployment model, device count, support needs, and integration requirements. Eclipse Mosquitto suits lean deployments, while EMQX, HiveMQ, or AWS IoT Core may fit broader operational, clustering, or managed-service requirements.
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 743 € 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.
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Philipp Thomaschewski
FRATCH CEO
