MQTT Experts in Munich
in minutes from over 15,000 CVs with the power of AIWork with specialists who architect high-throughput broker clusters, secure edge-to-cloud telemetry, and bridge industrial sensor networks into enterprise backends, matched instantly through precise AI screening.
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, 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 A.
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 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
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
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
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
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
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
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: 88%)
Master's degree or higher
82% (Germany: 62%)
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 19 Sep 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 19 Sep 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
Lightweight messaging for connected devices
MQTT is the standard publish-subscribe network protocol designed for constrained devices and low-bandwidth networks. Originally created as MQ Telemetry Transport, it minimizes packet overhead while ensuring reliable payload distribution across unreliable radio and cellular connections. Systems rely on it for real-time telemetry, remote commands, and bidirectional edge communication.
Core broker architectures and tooling
- Enterprise brokers including HiveMQ, EMQX, and Mosquitto
- Edge gateways with Eclipse Kura and AWS IoT Greengrass
- Bridge connectors targeting Apache Kafka, RabbitMQ, and InfluxDB
- Embedded client libraries such as Eclipse Paho for C, Python, and Go
Industrial and automotive applications in Munich
Munich hosts major automotive manufacturers, industrial automation pioneers, and connected mobility startups. Local teams deploy the protocol to stream vehicle telematics, coordinate smart factory sensors under Industry 4.0 standards, and power smart city infrastructure. Deployments often bridge MQTT payloads with Sparkplug B specifications into existing SCADA frameworks across Bavarian industrial plants.
When teams require dedicated freelance support
- Scaling broker clusters to handle massive concurrent device connections
- Hardening transport security with mTLS and token authentication
- Designing deterministic Quality of Service levels to eliminate message drops
- Eliminating message latency spikes across high-volume edge fleets
Essential skills for protocol specialists
Experienced professionals understand the operational differences between MQTT 3.1.1 and MQTT 5.0, utilizing user properties, topic aliases, and shared subscriptions effectively. They combine protocol depth with practical knowledge of TLS offloading, distributed state management, and efficient payload serialization using Protocol Buffers or CBOR rather than verbose JSON structures.
Distinguishing top-tier system specialists
Senior specialists stand out through hands-on troubleshooting of network edge failures and broker backpressure. They construct resilient topic trees that scale without namespace collisions, configure retention policies that preserve memory under load, and implement observability pipelines via Prometheus and OpenTelemetry to monitor connection churn and broker health proactively.
Frequently asked questions
Not sure where to start with MQTT? These answers cover the essentials.
MQTT serves as the primary protocol for streaming sensor telemetry and issuing remote control commands between edge devices and centralized cloud platforms. It excels in environments with constrained hardware, intermittent network connectivity, and low bandwidth requirements.
While HTTP incurs significant overhead per request due to heavy headers, MQTT maintains an open TCP connection with a two-byte fixed header, saving energy and network bandwidth. WebSockets provide full-duplex channels but lack built-in Quality of Service guarantees, retained messages, and the pub-sub topic routing native to the protocol.
Upgrading to MQTT 5.0 introduces shared subscriptions for load balancing client consumers, user properties for metadata routing, and negative acknowledgments. Strong professionals use these features to build enterprise-grade architectures that avoid custom workarounds required in legacy versions.
Standard MQ Telemetry Transport allows arbitrary payload payloads, which can cause integration challenges across different industrial vendors. The Sparkplug B specification standardizes topic structures and payload definitions, enabling plug-and-play interoperability across operational technology environments.
A qualified MQTT specialist typically brings deep experience in network security using mTLS, serialization formats like Protocol Buffers, and streaming platforms such as Apache Kafka. Proficiency in distributed systems and cloud platforms like AWS IoT Core or Azure IoT Hub is also standard.
Most broker clustering, cloud integration, and architecture tasks run smoothly in a remote setup. For hardware-in-the-loop testing, factory floor sensor rollouts, and physical gateway commissioning across Munich industrial sites, companies often arrange hybrid contracts with scheduled on-site integration days.
International engineering teams across Munich routinely use English for software architecture, client implementations, and system documentation. However, integration work touching local manufacturing plants or field operations often benefits from a professional fluent in German to liaise with operational technicians.
Evaluate candidates by their grasp of connection lifecycles, Keep Alive interval tuning, and broker sizing calculations under heavy connection surges. Top MQTT professionals will readily explain how they handle broker failover without losing transient payloads or exhausting connection limits.
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
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
