MQTT Experts in Berlin
matched in minutes from over 15,000 CVsHire experts who design MQTT messaging, connect IoT devices, and integrate brokers such as Eclipse Mosquitto or EMQX. FRATCH uses AI to match you quickly and precisely with vetted, available freelancers for your project.
Meet FRATCH Experts in Berlin, who have recently used MQTT
Abhishek N.
Last position:
Fullstack Developer at DAMALO GmbH
- Own full-stack development of an AI-native enterprise platform built on TypeScript, React, Vite, tRPC, Hono, and PostgreSQL, delivering AI-powered consulting workflows to B2B clients.
- Designed and shipped a multi-agent AI system using ReAct framework and Claude skills-style workflow patterns, including an intelligent PM assistant with rich system prompts, slash commands, tool integrations, and streaming chat UI.
- Architected an LLM evaluation framework: rubric-based LLM-as-judge, golden datasets, regression testing, and automated quality gating — ensuring consistent AI output quality at scale.
- Integrated LangFuse for end-to-end LLM tracing, conversation replays, and evaluation pipelines, enabling data-driven prompt optimisation that reduced token costs and response variance.
- Built with Drizzle ORM, pgvector, and knowledge graphs for structured data access, semantic search, and relationship-aware AI reasoning across the platform.
- Led TanStack React Query migration across the application — replacing manual state management with centralised caching and automatic refetching, reducing data-fetching boilerplate significantly.
- Practiced AI-native development throughout: Claude Code, Codex, Perplexity SDK, and LLM-assisted testing across the full development lifecycle. Deployed on Vercel + Azure ACA with Biome for linting/formatting.
Mohsin H.
Last position:
BBM GenAI MiDAS program coordinator for Bosch eBike at Robert Bosch GmbH
The MiDAS program aims to integrate Generative AI across the entire BBM organization. My role is to enable the eBike division to adopt and leverage Generative AI by collaborating closely with the MiDAS team in India.
Management:
- Enable the eBike division to adopt GenAI through tailored solutions.
- Collaborate with the MiDAS team in India to design solutions for Generative AI use cases specific to the eBike division.
- Coordinate with the eBike teams to integrate GenAI systems, tools, plugins, and services provided by the MiDAS team.
- Plan roadmaps with eBike and MiDAS India team Product Managers for the delivery and integration of Generative AI solutions.
Mathias W.
Last position:
Implementation of an on-premise OCR solution with information extraction at Mindhopper GmbH
- Insurance service provider*
Challenge: Business-critical documents were processed through external OCR providers, with ongoing costs, dependency, and data privacy risks for sensitive insurance data.
Implementation:
- Architecture and production implementation of an on-premise OCR solution with full data ownership
- Methods for recognizing document structures as the basis for automated further processing
- ML-, NLP-, and LLM/VLM-based information extraction, especially from invoices and quotations
Success: Replaced external providers: full data ownership, GDPR-compliant processing, and 75% lower recurring OCR costs per year
Used technologies: Python, Docker, Microservices, FastAPI, PyTorch, Torchvision, MongoDB, MySQL
Qaiser A.
Last position:
Freelance Lead DevOps Engineer at Schwarz Gruppe Produktion
Bootstrapping a CloudOps team and building a multi-cloud provider backend for a low-code Internal Developer Platform (IDP) with env zero
Introducing user story mapping, ADRs, milestones, and backlog management
Designing and developing core APIs, setting up CI/CD pipelines, OpenTofu/Terraform scripts
Representing and communicating the team with third-party stakeholders (e.g. env zero)
(Cross-)team coaching on DevOps, software design, Terraform, Golang, and agile practices
Olaf N.
Last position:
Frontend Engineer at Danaher/Hach Lange GmbH
- Developed a SolidJS frontend UI for a spectrometric water analysis system on an ARM-based embedded Linux platform
- Prototyped UI in TypeScript React/Nx with LitElements and MQTT integration
- Built production UI using SolidJS, SUID, i18next, Ajv, MQTT.js, C3.js
- Refined requirements with UX team and water analysis system engineers
- Defined and documented system architecture, MQTT message formats, frontend architecture, and development setup
- Set up frontend system from scratch, implemented domain-oriented type system, UI components, and application state
- Managed MQTT pub/sub services and schema-based message validation in frontend
- Coached two junior frontend developers
- Worked in an agile remote team using JIRA, Git, and Bitbucket
Anuja C.
Last position:
Embedded Software Engineer at Digital Core Technology
- Designed and implemented embedded firmware in C/C++ for ARM-based microcontrollers and SoCs (STM32, NXP, Infineon)
- Worked across bare-metal, FreeRTOS, and Embedded Linux environments, contributing to BSP-level functionality, driver bring-up, and system integration
- Built, configured, and validated Embedded Linux systems using Yocto, including image build, boot validation, and runtime debugging
- Developed and executed unit, integration, and system-level tests, including HIL and SIL test scenarios on real hardware and simulated environments
- Created Python and Bash scripts to automate build, test execution, simulation runs, and reporting within CI/CD pipelines (Jenkins, GitLab CI)
- Designed test cases from software and system-level requirements, covering normal operation, edge cases, and failure scenarios
- Performed low-level debugging using JTAG/GDB, analyzing boot issues, timing problems, interrupts, and peripheral behavior
- Developed and validated communication interfaces including UART, SPI, I2C, CAN using logs and external measurement tools
- Used simulation and virtual test environments to validate software behavior prior to hardware availability
- Read and interpreted hardware schematics to understand signal routing, pin multiplexing, and peripheral connections
- Supported PCB design and review activities using Altium tool, assisting with component selection, pin mapping, and bring-up readiness
- Collaborated with cross-functional hardware, firmware, and system teams to clarify requirements, document assumptions, and improve overall test coverage
- Developed web interfaces using HTML, CSS, and JavaScript (ES6) and basic REST API development with Node.js
- Experience testing web applications and building UI automation frameworks using Selenium WebDriver
Kashaf K.
Last position:
AI Consultant / Expert at Siemens Mobility
- Evaluated 45+ AI use cases and developed a prioritization framework for Siemens’ internal AI roadmap.
- Tested internal tools like DRIM, SiemensGPT, Microsoft Copilot; presented evaluation outcomes to stakeholders.
- Identified performance gaps and improved tool adoption by 65%.
- Supported AI knowledge-sharing initiatives, led tool onboarding sessions, and improved team AI literacy.
- Collaborated with engineering, procurement, and digital teams on tool feedback and strategy alignment.
Mostafa S.
Last position:
Embedded Firmware Engineer at Esko-Graphics Imaging GmbH
- FPGA code conversion from AHDL to Verilog and SystemVerilog (Altera Cyclone)
- IDE: Intel Quartus Prime (Altera)
- Code simulation: QuestaSim
- Timing analysis
Mario E.
Last position:
Developer and Consultant at Freelancer
Discover over 15,000 top freelancers
Statistics of experts using MQTT
Aggregated from the professional profiles of matched freelancers.
Experience
18 years (Germany: 20 years)
Position duration
2.3 years (Germany: 3.2 years)
Positions per freelancer
12 (Germany: 13)
Top business areas
Product Development, Information Technology, Research and Development
Top industries
Information Technology, Healthcare, Manufacturing
Certification focus areas
Information Technology, Business Intelligence, Project Management
Bachelor's degree or higher
100% (Germany: 88%)
Master's degree or higher
86% (Germany: 62%)
Doctorate
14% (Germany: 6%)
Certifications per freelancer
2 (Germany: 3)
Most common languages
German, English, Arabic
Speak two or more languages
100% (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 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 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 (100%)
- Healthcare (56%)
- Manufacturing (56%)
- Automotive (44%)
- Education (44%)
- Energy (44%)
- Utilities (44%)
- Retail (33%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What MQTT does
MQTT, short for Message Queuing Telemetry Transport, is a lightweight publish-subscribe protocol for connected devices. It sends messages through a broker instead of requiring every device to connect directly to every other system. This keeps communication efficient when bandwidth, power or network stability is limited.
Where it fits
MQTT connects sensors, machines, vehicles and applications across the edge, cloud and enterprise layers. Companies use it for industrial monitoring, building automation, energy systems, logistics tracking and connected products. In Berlin, it is relevant to teams linking physical operations with digital services and real-time data flows.
- Stream telemetry from sensors and machines
- Trigger actions from device events
- Feed operational data into cloud services
- Support mobile and intermittently connected devices
Ecosystem and tooling
Strong MQTT specialists work with brokers such as Eclipse Mosquitto, EMQX and HiveMQ, as well as MQTT clients for common programming languages and embedded environments. They understand topic hierarchies, retained messages, quality of service levels, session handling and last-will messages. Integrations often include Node-RED, Kubernetes, AWS IoT Core, Azure IoT and time-series databases.
When expertise matters
Freelance expertise is useful when a proof of concept must become a secure production service, or when unreliable device communication affects operations. Specialists can review broker architecture, define topic conventions, tune message delivery and connect MQTT with existing APIs and event systems. They also help teams plan migrations from proprietary protocols or unsuitable polling designs.
- Broker selection and deployment
- Device onboarding and certificate management
- MQTT-to-HTTP or MQTT-to-Kafka integration
- Monitoring, alerting and capacity planning
What strong professionals know
Reliable MQTT work goes beyond publishing and subscribing to messages. Experienced professionals design for duplicate delivery, ordering limits, offline devices, access control and schema changes. They test failure recovery and observe message flows across devices, brokers and downstream services. Knowledge of TLS, Linux, networking and cloud operations adds practical value.
Working with a specialist
MQTT projects can usually be handled remotely when device access, logs and test environments are available. On-site collaboration in Berlin may help with factory equipment, gateways or building systems that cannot be reproduced elsewhere. Agree on the broker, device types, expected message behavior, security model and ownership of operational runbooks before work begins.
Frequently asked questions
Before you brief your next project: the most common questions about MQTT.
MQTT is used to exchange small messages between devices, gateways, brokers and applications. It suits telemetry, alerts, remote commands and status updates where devices may have limited power or unreliable connections.
MQTT uses a broker and publish-subscribe model, while HTTP usually follows direct request-and-response communication. MQTT can reduce connection overhead and simplify many-to-many device messaging; HTTP may be more natural for resource-based APIs and browser-facing services.
A strong MQTT specialist often understands embedded systems, networking, TLS, Linux and cloud IoT services. Experience with Eclipse Mosquitto, EMQX, Node-RED, Kafka or time-series storage can also help when messages must reach wider data and operations systems.
The right level depends on risk and scope rather than the protocol alone. A simple sensor integration may need focused implementation skills, while a production fleet requires proven knowledge of broker operations, security, failure handling, observability and device lifecycle management.
MQTT work is often suitable for remote collaboration when the specialist can access device logs, broker environments and test hardware. On-site time in Berlin can still be valuable for factories, buildings or gateways that require physical inspection and coordination with local teams.
Ask for clear topic design, documented quality-of-service choices and a security model that covers authentication and authorization. Good MQTT work also includes tests for reconnects, duplicate messages, offline devices, retained data and broker failure.
MQTT is designed for lightweight device messaging and constrained networks, with a simple topic-based model. AMQP generally offers richer enterprise messaging features, routing and delivery controls, so the choice depends on device limits, integration needs and operational complexity.
Not always, but embedded knowledge is valuable when message behavior depends on memory, battery life, firmware limits or unstable connectivity. A capable MQTT professional should at least understand how device constraints affect payloads, reconnect logic, certificates and remote updates.
The average hourly rate of freelancers in Berlin, Germany who have used MQTT in their recent projects is 91 €, which corresponds to a daily rate of about 731 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used MQTT in their recent projects, 100% hold at least a Bachelor's degree, 86% hold at least a Master's degree, and 14% hold a doctorate.
On average, freelancers in Berlin, Germany who have used MQTT in their recent projects have 18 years of professional experience, with a single engagement typically lasting around 2.3 years.
The most common languages among freelancers in Berlin, Germany who have used MQTT in their recent projects are German (100%), English (100%), and Arabic (11%).
The most common industries among freelancers in Berlin, Germany who have used MQTT in their recent projects are Information Technology (100%), Healthcare (56%), and Manufacturing (56%).
The most common business areas among freelancers in Berlin, Germany who have used MQTT in their recent projects are Product Development (100%), Information Technology (89%), and Research and Development (89%).
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.
Hamburg 
Munich 
Stuttgart Request a free demo
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FRATCH CEO
