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MQTT Developers disponibili online
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7,0
7,0
98%

Gwalior, India
$25 USD pe oră
Hello! I am PANKAJ KUMAR. If any Idea/concept you have, We are here for you. Following are Services I provide. 1. Embedded or Firmware Programming in ARDUINO IDE, ESPIDF, PLATFORM IO for ESP32 and other Arduino supported boards.(Instruction to make connections and Code as your property) 2.PCB designing, Gerber Generation, Circuit design, Schematic Preparation. PCB design in Altium and KICAD (Will provide you PCB files, GERBER, BOM, CPC etc.) 3. TFT display GUI in LVGL, Square Line studio.(Studio files and Firmware with implemented GUI) 4. MQTT in EMBEDED Firmware's of ESP32 boards. 5.-arduino, Sensors, motors, actuators, and so on. 6. 3D modelling in Solid Works, Enclosure design for PCB boards. Tools:- 1. Altium Designer. (PCB design, Schematic, BOM, CPC, FOOTPRINT) 2 .Kicad, (PCB design, Schematic, BOM, CPC, FOOTPRINT) 3. SolidWorkds (3D model, Mechanism Design, Enclosure Design ) 4. ARDUINO IDE, ESPIDF, PLATFORM IO 5. SQUARELINE STUDIO (GUI Design.) Note:- My preferred Language is ENGLISH. I am fulltime Freelancer so available all time except Sleeping hours and incase of not available for some reasons.. .

7,9
7,9
99%

SYLHET, Bangladesh
$20 USD pe oră
I've had a fascination with electronics ever since I was a young child. I became a circuit designer because of my obsession with robotics and electronics. I've been motivated to learn and research more because of the bachelor's major I chose. I've been working for approximately 4 years as a Professional PCB Designer and an Expert in Embedded Systems. The following services are offered by me: ✔ Schematic Design ✔ PCB Design (1/2/4/8 Layers) ✔ PCB manufacturing support ✔ 3D CAD Design of PCB (.obj /.step) ✔ Custom schematic library and PCB footprint creation I have done many projects till now. some of those are- ✔ 5-lead ECG device prototype for healthcare ✔ Oximeter SpO2 monitor ✔ Sports Activity monitoring device using mmWave radar technology ✔ Advanced PID controlled Line Following and obstacle avoiding robot ✔ Design and Implementation of Pulse oximeter ✔ 2G(Sim800c) & LTE(Sim7600g) based GPS tracker using ESP32 PICO mcu ✔ Disinfection tunnel for securing area from Covid-19 infection ✔ Solar powered incubator system with temperature and humidity control for smart agriculture ✔ IR remote & Wi-Fi based home automation system ✔ Contactless thermometer with image capturing device ✔ GPS based positioning and Speedometer device ✔ Using Dali, 0-10V, LoRa,WiFi, BLE modbus prototol various street lighting system devices ✔ 4-20mA to 0-5 industrial sensor reading development board I have experience about: 1.Circuit Design 2.PCB Design & Layout making using the following softwares : ✅ Altium ✅ Autodesk Eagle ✅ Proteus ✅ Orcad ✅ KiCad etc My goal is to provide : ✅ Best effort and quality for every project at reasonable rate ($) . ✅ Free servicing facility even after completing the project. ✅ The project perfectly within shortest possible time. Even i will try my best to complete my project before the expiration time.Please allow me to complete your project and i am ensuring my best effort for this.I would love to hear more about what would make this project successful for you and explore if we would be good fit to work together.I am looking forward to your response and wish you all the best for you future. So you can completely rely on me.

9,7
9,7
98%

Gurugram, India
$30 USD pe oră
Custom Software, AI and SaaS Product Studio. 14 Years, One Platform. We have built exclusively on Freelancer.com for 14 years. 500+ projects delivered. 5.0 rating across 512 reviews. 23% repeat hire rate. This is our only sales channel, so every project gets our full attention, not overflow from an agency spread across ten platforms. What we build Custom software and SaaS platforms. Full stack, scalable, built to hand off cleanly. AI native products. ChatGPT, Claude and Gemini integrations, AI chatbots, voice agents, workflow automation. Ecommerce and marketplaces. Shopify, WooCommerce, multivendor platforms. WordPress, Laravel, React, Next.js and Node.js. Production grade, not template work. You will work directly with Akash (CTO, 14 years on this platform) and Shubham or Divya (client relationship leads, named by clients in reviews going back years). The same people from your first message to final delivery. No account handoffs, no rotating project managers. 152 professional recommendations back that consistency. 100% in house team. No outsourcing. We treat every project as if we are the ones maintaining it three years from now, because often we are. Some clients have stayed with us since 2012. If your project does not need custom development, we will tell you before you spend the money. Core expertise Frontend: React, Next.js, Vue, Angular, TypeScript Backend: Node.js, Express, NestJS, Laravel, FastAPI, Core PHP Mobile: React Native, Flutter Databases: PostgreSQL, MongoDB, MySQL, Supabase Cloud: AWS, Google Cloud, Docker AI and Automation: OpenAI, Claude and Gemini APIs, RAG pipelines, LangChain, AI agents CMS and Ecommerce: WordPress, Shopify, WooCommerce, Wix, Squarespace, BigCommerce, Magento, Joomla, OpenCart, Weebly, Webflow, GoDaddy Website Builder, headless CMS Payments, Billing and Subscriptions: Stripe, Stripe Connect, PayPal, Razorpay, WooPayments, NOWPayments, ccBill, LemonSqueezy, Peppol Voice and Telephony: VAPI for inbound and outbound call orchestration with function calling, Twilio for phone number provisioning CRM and Automation: HubSpot, Zapier Lead Generation and Landing Pages: HubSpot, Odoo, Webflow, GoHighLevel, Apify, Outscraper Email and Communication: Postmark, Nodemailer, Mailivery, Gmail API, Microsoft Graph API, Yahoo IMAP, SendGrid AI Assisted Development: Cursor, Replit, Bubble, WeWeb, Lovable, Bolt, Base44 Let's talk about what you are trying to build.

10,0
10,0
98%

Berhampore, India
$15 USD pe oră
Techno Exponent is a globally recognized software development company with 355+ excellent reviews on Freelancer.com and a strong track record of delivering high-quality web, mobile, AI, automation, SaaS, CRM, ERP, eCommerce, and enterprise software solutions. We are not just a team of developers; we are a complete technology partner for businesses that want to build, modernize, automate, and scale their digital products. With a strong in-house team of experienced developers, designers, project managers, business analysts, QA engineers, and AI specialists, we help startups, SMEs, and enterprises transform their ideas into secure, scalable, and market-ready solutions. --------> What We Do We provide end-to-end development services across all industries, including: Custom Website Development Mobile App Development AI Chatbot & AI Agent Development SaaS Platform Development CRM & ERP Development eCommerce & Marketplace Development Healthcare & Telehealth Platforms Fintech & Payment Solutions Real Estate Platforms Logistics & On-Demand Applications Booking & Appointment Systems Workflow Automation Legacy Software Modernization API Development & Third-Party Integration Cloud Deployment & Maintenance AI & Automation Expertise We help businesses use AI practically, not just as a buzzword. Our team builds AI-powered chatbots, customer support automation, lead qualification systems, document-based AI assistants, workflow automation tools, recommendation engines, AI dashboards, and intelligent business process automation systems. Whether you need an AI chatbot trained on your website, PDFs, and documents, or a complete AI-powered business platform, we can design and develop a solution that fits your goals. -------->Why Clients Choose Techno Exponent 342+ strong reviews on Freelancer.com Experienced in-house development team CMMI Level 5 process-driven delivery End-to-end support from planning to launch Transparent communication and milestone-based execution Dedicated project manager and business analyst Strong UI/UX, development, QA, and deployment process Experience across multiple industries and business models Long-term maintenance and post-launch support --------> Our Approach We first understand your business objective, target users, workflow, and expected outcome. Then we prepare a clear development roadmap, define the required features, suggest the right technology stack, design the user experience, develop the system, test it properly, and support you after launch. Our goal is not only to complete the project, but to build a solution that is practical, scalable, and useful for your business. --------> Let’s Build Something Great If you are looking for a reliable, experienced, and quality-focused development partner, Techno Exponent can help you turn your idea into a powerful digital product. We are ready to discuss your project, suggest the right approach, and deliver a solution that matches your business vision.

9,3
9,3
99%

Ras Al Khaimah, United Arab Emirates
$25 USD pe oră
𝐖𝐄𝐁 • 𝐌𝐎𝐁𝐈𝐋𝐄 • 𝐆𝐀𝐌𝐄 • 𝐀𝐑/𝐕𝐑 • 𝐀𝐈 𝐅𝐈𝐑𝐒𝐓 𝐂𝐎𝐌𝐏𝐀𝐍𝐘 Welcome to App Mechanic! At App Mechanic, we are a Web, Mobile, Game, AR/VR, and AI-first development company, delivering scalable, high-performance, and future-ready digital solutions. We combine innovation, design, and engineering to turn ideas into impactful products. 🔹 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬: ➜ Website and Mobile App Development ➜ Game Development ➜ Augmented Reality (AR) & Virtual Reality (VR) ➜ Artificial Intelligence (AI) ➜ SaaS, ERP & CRM Development ➜ AI Automation & Workflows (n8n, Zapier) ➜ Rapid MVP Development (FlutterFlow, Bubble io, Lovable, Base44) ➜ Blockchain & Smart Contracts ➜ Search Engine Optimization (SEO) & Digital Marketing 🔹 𝐈𝐧𝐝𝐮𝐬𝐭𝐫𝐢𝐞𝐬 𝐖𝐞’𝐯𝐞 𝐒𝐞𝐫𝐯𝐞𝐝: ➜ Manufacturing, Education, E-commerce, FMCG, Retail ➜ Healthcare, Real Estate, Travel, Logistics & Supply Chain 🔹 𝐆𝐫𝐚𝐩𝐡𝐢𝐜 𝐃𝐞𝐬𝐢𝐠𝐧𝐢𝐧𝐠 & 𝐔𝐈/𝐔𝐗: ➜ Brand Identity (Logos, Flyers, Brochures, Business Cards) – Photoshop / Illustrator ➜ Wireframes, Mockups & Clickable Prototypes (Figma / Adobe XD) ➜ Conversion-focused UI/UX Design 🔹 𝐖𝐞𝐛 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: ➜ Frontend: ReactJS, VueJS, NextJS, Angular, TypeScript, Tailwind CSS, Bootstrap ➜ Backend: NodeJS, Python, PHP (Laravel), .NET (ASP.NET, C#), FastAPI, Django ➜ APIs: RESTful, GraphQL, SOAP, Third-party Integrations ➜ Databases: MySQL, MSSQL, MongoDB, PostgreSQL, Redis ➜ Vector DBs: Pinecone, FAISS, Weaviate, Chroma, pgvector ➜ Version Control & Tools: Git, GitHub, GitLab, Jira, Trello, Slack 🔹 𝐂𝐌𝐒 & 𝐞𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞: ➜ Django & MERN-based Custom CMS ➜ WordPress (Elementor, WooCommerce), Shopify (Custom Themes) ➜ Headless CMS: Strapi, Sanity 🔹 𝐌𝐨𝐛𝐢𝐥𝐞 𝐀𝐩𝐩 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: ➜ Flutter, FlutterFlow & React Native (Cross-platform) ➜ Native iOS & Android Apps ➜ .NET MAUI (Cross-platform Apps) 🔹 𝐆𝐚𝐦𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: ➜ Unity 3D (C#), Unreal Engine ➜ 2D/3D Games, Simulations, AR/VR 🔹 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: ➜ OpenAI, ChatGPT, Claude, Gemini Integrations ➜ AI Chatbots, Conversational AI, NLP, AI Agents ➜ LangChain, RAG Pipelines, Vector Databases ➜ n8n & Zapier Automation Workflows ➜ OCR & Computer Vision 🔹 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: ➜ AWS, GCP, Microsoft Azure ➜ Docker, Kubernetes, CI/CD Pipelines ➜ Nginx, Apache, IIS, Linux Servers ➜ Infrastructure as Code (Terraform) ✨ At App Mechanic, we build 𝐀𝐈-𝐟𝐢𝐫𝐬𝐭, 𝐬𝐜𝐚𝐥𝐚𝐛𝐥𝐞, 𝐚𝐧𝐝 𝐡𝐢𝐠𝐡-𝐩𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐩𝐫𝐨𝐝𝐮𝐜𝐭𝐬 across 𝐖𝐞𝐛, 𝐌𝐨𝐛𝐢𝐥𝐞, 𝐆𝐚𝐦𝐞𝐬, 𝐚𝐧𝐝 𝐗𝐑 while also enabling 𝐫𝐚𝐩𝐢𝐝 𝐌𝐕𝐏 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 using modern 𝐧𝐨-𝐜𝐨𝐝𝐞/𝐥𝐨𝐰-𝐜𝐨𝐝𝐞 𝐭𝐨𝐨𝐥𝐬 and helping businesses grow through 𝐒𝐄𝐎 𝐚𝐧𝐝 𝐝𝐢𝐠𝐢𝐭𝐚𝐥 𝐦𝐚𝐫𝐤𝐞𝐭𝐢𝐧𝐠.

8,2
8,2
98%

islamabad, Pakistan
$40 USD pe oră
Hello Everyone, I am Faisal Manzoor Hussain, professional full stack developer holding experience in website development, desktop development and hybrid application development with proven success. I'm here to help businesses all over the world to grow their online presence through mobile apps and website development services. My target is to help these companies automate their complex business logic. I also hold specialization in developing APIs and integrate almost all sorts of APIs in your application. I also automate business processes to help your business run smoothly. Why should you hire me? Reasons that sound logical in hiring me include ● 99% Completion rate ● Top 3% in Freelancer.com directory ● Lower hourly rate for long term projects ● Life time free bug fixing guarantee Coming to our array of services, I offer my customers with: ● Mobile Responsive Website Design, Development & Optimization. ● Graphics Design & 3D Logo Design & Brand Identity. ● Android App Development (Native & Hybrid) ● Wix Studio, Google Apps Script, SalesForce, Xero, AMP, GSO and Progressive Web Applications Development ● Web Services (JSON, XML, SDK, SOAP, SAML, SSO) ● Website Maintenance (Regular Updates) ● Cloud Formation, JotForm.com, Bubble.io, klaviyo.com Major Web API Integrations are namely- - Google (Maps, Drive, Analytics, My Business, Tag Manager, Gmail) - Payment Gateways (PayPal, Square, Stripe + Connect, PayTM, Skrill, 2Checkout, Paynet, BrainTree). - Shipping Platforms (Fedex, Royal Mail) - SMS Gateway (Twilio, BrainsSMS, Clickatell) - Social (Facebook, Instagram, Twitter, LinkedIn, YouTube, Telegram) - AWS, GCP, Big Data, Big Query, AI, and Data Engineering - HealthCare (Stafferlink, Deputy) - Smoobu, Remote lock, MQTT, Web Sockets, - NFC, RFID, Sensors, Fingerprint, and QR processing, Aurdino, Power BI - Blockchain, Smart Contracts, Ethereum, Binance Smart Chain, NFT, Data Mining - Microcontrollers, PLC, Electronics, Robotics process automation, AI Automation Tools, MVC and CMS that I'm are compatible working with are: 1. OpenAI, Machine Learning, Chat GPT, Tensorflow 2. Codeigniter, Laravel 3. AngularJS 4. Wix 5. Squarespace 6. Shopify 7. Bootstrap, Foundation 8. Intel XDK Android Application Development 9. Ethr.js Solidity

8,7
8,7
91%

Tirumangalam, India
$25 USD pe oră
Osiz Technologies is a premier software development company with over 16 years of industry expertise, dedicated to delivering innovative and robust solutions. Our dynamic team of 300+ professionals specializes in a wide range of services, including Web Development, AI, Blockchain, Game Development, and more. We have a diverse team of in-house 2D & 3D designers, Blockchain, NFT, and Metaverse developers, all working together to provide high-quality, cost-effective, and cutting-edge open-source development solutions to clients across the globe. ✔️Web Development - Frontend: React.js, Angular, Vue.js, JavaScript, HTML5, CSS3 (Bootstrap) - Backend: Node.js, Python (Django, Flask), PHP (CI, Laravel, Symfony), Ruby on Rails, Java (Spring), Next.js, - Express.js - Databases: MySQL, PostgreSQL, MongoDB, SQLite - CMS: WordPress, Joomla, Drupal - E-commerce: Magento, Shopify, WooCommerce, OpenCart ✔️Mobile App Development - iOS: Swift, Objective-C - Android: Kotlin, Java - Cross-Platform: Flutter, React Native, Xamarin ✔️Blockchain Development - Blockchain Platforms: Ethereum, Hyperledger, Binance Smart Chain, Polkadot, Solana - Smart Contracts: Solidity, Vyper, Rust - Wallets: MetaMask, Trust Wallet, Ledger - Frameworks: Truffle, Hardhat, Brownie ✔️Artificial Intelligence & Machine Learning - Languages: Python, R, Java - Libraries/Frameworks: TensorFlow, PyTorch, Keras, Scikit-Learn, NLTK, SpaCy - Tools: Jupyter Notebook, Google Colab, IBM Watson, Azure ML ✔️Game Development - Engines: Unity, Unreal Engine, Godot, CryEngine - Languages: C#, C++, JavaScript - AR/VR: Vuforia, ARKit, ARCore, Oculus SDK ✔️Metaverse Development - 3D Modeling: Blender, Maya, 3ds Max - Virtual Worlds: Unity, Unreal Engine - Blockchain Integration: Ethereum, Flow, Binance Smart Chain ✔️E-commerce Solutions - Platforms: Magento, Shopify, WooCommerce, OpenCart - Payment Gateways: Stripe, PayPal, Square, Authorize.Net - Languages: PHP, JavaScript, Ruby, Python ✔️UI/UX Design - Tools: Adobe XD, Figma, Sketch, InVision, Axure RP - Prototyping: Marvel, Proto.io, Balsamiq ✔️Cloud Computing Solutions - Platforms: AWS, Microsoft Azure, Google Cloud Platform (GCP) - Containerization: Docker, Kubernetes - DevOps Tools: Jenkins, GitLab CI/CD, Terraform, Ansible ✔️Enterprise Solutions - ERP Systems: SAP, Oracle, Microsoft Dynamics, Odoo - CRM Systems: Salesforce, HubSpot, Zoho CRM, Microsoft Dynamics CRM - Languages: Java, C#, Python, PHP - Databases: Oracle, SQL Server, MySQL, PostgreSQL ✔️Digital Marketing - SEO Tools: Google Analytics, SEMrush, Ahrefs, Moz - Social Media: Hootsuite, Buffer, Sprout Social - Content Marketing: WordPress, Medium, HubSpot We are available 24/7 to discuss any of our services with you. Just shoot us a message and we’d be happy to help.

6,8
6,8
84%

KAKAMEGA, Kenya
$50 USD pe oră
Mechanical Engineering and Machine Learning Professional I possess extensive knowledge and experience in mechanical engineering and Machine Learning, both critical components of my professional skill set. My expertise spans a wide range of areas, including mechanical design, simulation, and machine learning. Here are some key highlights of my skills and experience: Mechanical Engineering Skills SolidWorks Design: - Proficient in creating detailed 3D models and assemblies - Expertise in generating technical drawings and documentation - Skilled in design for manufacturability and assembly (DFM/DFA) Finite Element Analysis (FEA): - Experienced in structural, thermal, and dynamic analysis - Proficient in using Abaqus for complex simulations - Skilled in interpreting and optimizing FEA results to improve design performance MatLab: - Building applications for numerical analysis, optimization, and statistical analysis for 15 years - Proficient in developing GUIs for engineering applications - Experienced in solving complex engineering problems using MatLab Machine Learning Skills Supervised and Unsupervised Learning: - Proficient in implementing algorithms such as SVM, Naive Bayes, Nearest Neighbor, and K-means clustering - Skilled in feature extraction, model training, and validation - Experienced in applying machine learning techniques to engineering problems Additional Skills Statistical Analysis | Data Analysis | Data Entry: - Expertise in descriptive statistics, regression analysis, and hypothesis testing - Skilled in data preprocessing, visualization, and interpretation Academic Writing | SEO Writing | Forum Posting: - Specialize in link building, SEO, PDF/OCR conversions, market research, and internet marketing - Proven ability to deliver high-quality content quickly and efficiently - Available for both long-term and short-term projects I am committed to bringing out my best in every project, leveraging my skills in mechanical engineering and machine learning to deliver exceptional results. Best regards, Collins

8,0
8,0
96%

lahore, Pakistan
$25 USD pe oră
Rashid Tech Solutions is a systems-focused engineering and development company with 5+ years of hands-on experience across software, cloud, automation, electronics and embedded systems. We build reliable solutions where software, hardware and cloud technologies work together smoothly. Core Expertise Web, SaaS & UI/UX: PHP, Python, JavaScript, TypeScript, React, Node.js, Laravel, Django, Next.js, .NET, SQL, WordPress, Webflow, Wix, responsive websites, dashboards, portals, APIs and UI/UX. eCommerce & Payments: Shopify, WooCommerce, Magento, PrestaShop, Stripe, PayPal, subscriptions, checkout, shipping, inventory and ERP/accounting integrations. Mobile & Desktop Apps: Android, iOS, Flutter, React Native, Python, .NET/WPF, Electron.js, APIs, databases and integrations. Cloud & DevOps: AWS, Azure, GCP, Docker, Kubernetes, CI/CD, GitHub, GitLab, Linux, Windows Server, Nginx, Terraform, Ansible, VPS, monitoring, backups and security. Automation & Integrations: Zapier, n8n, Make.com, Power Automate, Airtable, Brevo, Stripe automation, APIs, webhooks, bots, CRM automation and data sync. Enterprise Solutions: Odoo, Zoho, Salesforce, Dynamics 365, SharePoint, Power BI, Power Apps, Microsoft 365, CRM/ERP, Business Intelligence and dashboards. Accounting, Payroll & Excel: QuickBooks, Xero, payroll, invoicing, Teams integrations, Excel, VBA, Power Query, dashboards, financial models, reporting and API/database integrations. Electronics, PCB, Embedded & IoT: PCB design/layout, schematics, firmware, STM32, ESP32, Arduino, Raspberry Pi, ARM, RTOS, I2C, SPI, UART, BLE, WiFi, MQTT, NFC, LoRa, Zigbee and RF. PLC, SCADA & Industrial Automation: PLC, SCADA, HMI, instrumentation, motor/control systems, robotics, machine vision, motion control and equipment integration. Mechanical CAD/CAM & CNC: SolidWorks, Fusion 360, AutoCAD, CATIA, Siemens NX, Mastercam, 3D CAD, assemblies, enclosures, sheet metal, DFM, CNC, toolpaths and G-code. AI & Computer Vision: Generative AI, LLMs, AI agents, chatbots, Machine Learning, TensorFlow, OpenCV, OCR, object detection, image recognition and video processing. Blockchain & Trading: Smart contracts, DApps, Ethereum, BSC, Polygon, Solana, MT4/MT5, MQL4/MQL5, TradingView, Pine Script, Binance, broker APIs, EAs and trading bots. Marketing & Automation: Google Ads, conversion tracking, Google Analytics, technical SEO, YouTube optimization, TikTok content, video editing, Brevo, HubSpot, Zoho, Zapier, Make.com, Airtable, email campaigns and lead workflows. Networking & Communications: VPN, firewall, SSL, DNS, Active Directory, OpenVPN, VoIP, SIP, Asterisk, PBX, WebRTC, virtualization and system administration. Team & Delivery: Our multidisciplinary team covers software, cloud, electronics, embedded systems, automation and engineering. I personally oversee communication, technical direction and delivery. Post-Delivery Support: Documentation, fixes and ongoing support are available after handover.
An MQTT developer is a software engineer who designs, implements, and maintains messaging systems based on the MQTT protocol to enable lightweight, real-time communication between IoT devices, applications, and cloud services. MQTT (Message Queuing Telemetry Transport) is the de facto standard for machine-to-machine messaging in connected environments, and a skilled MQTT developer ensures messages flow reliably across constrained networks, fleets of sensors, and distributed backends.
Hiring an MQTT specialist matters commercially because IoT systems live or die on the quality of their messaging layer. Dropped packets, broker outages, or weak security on a publish/subscribe channel can ground entire device fleets. An experienced MQTT engineer builds the connectivity that powers smart factories, telemetry dashboards, connected vehicles, smart homes, and industrial monitoring platforms.
MQTT developers handle the full messaging stack, from edge device firmware to broker infrastructure and cloud-side consumers. The deliverables are concrete and measurable, ranging from custom client libraries to fully deployed broker clusters with monitoring and access control.
Strong MQTT engineers are fluent across brokers, client libraries, and the surrounding IoT ecosystem. Expect proficiency with Eclipse Mosquitto, EMQX, HiveMQ, and VerneMQ on the broker side, along with client libraries such as Eclipse Paho, MQTT.js, and Adafruit_MQTT for embedded targets.
The work usually extends into adjacent technologies: Node-RED for flow-based message routing, Docker and Kubernetes for broker deployment, Prometheus and Grafana for broker observability, and protocol-level tools like MQTT Explorer, mosquitto_sub, and Wireshark for debugging. Developers working on the device side often have experience with ESP32, Raspberry Pi, Arduino, or industrial gateways running protocols like Modbus, OPC UA, and LoRaWAN alongside MQTT.
MQTT is the connective tissue across most modern IoT verticals. Buyers typically hire MQTT developers for projects in:
The strongest signals come from hands-on protocol knowledge, not just framework familiarity. Look for portfolios that include real broker deployments, device fleets they have managed, and evidence of work under constrained networks (cellular, LPWAN, intermittent connectivity). Verify they understand the trade-offs between QoS levels, retained messages, and clean session flags rather than treating these as defaults.
Useful qualification signals include contributions to open-source MQTT libraries, experience operating brokers at scale, knowledge of MQTT 5.0 over MQTT 3.1.1, and familiarity with security frameworks such as OAuth 2.0, JWT, and mutual TLS. Adjacent skills worth checking are CoAP, AMQP, WebSocket transport, Kafka integration, and embedded C development for resource-constrained devices.
Sample interview questions to copy and use:
Freelancer.com gives you direct access to a global pool of MQTT engineers, IoT architects, and embedded developers with verified profiles, client reviews, and portfolios you can inspect before you commit. Whether you need a short engagement to debug a broker scaling issue or a long-term partner to build out an entire IoT platform, you can post a project on Freelancer.com and receive bids from qualified specialists within hours. The scale of the marketplace means you can compare candidates across regions, time zones, and specializations, while Milestone Payments protect your budget at every stage of the engagement.
Hiring an MQTT developer works best when you treat the brief as a technical specification, not a wish list. The clearer you are about device counts, broker requirements, and integration targets, the more accurate the bids you receive. The following three steps walk through the process from posting your project to awarding it.
The project post is the single biggest determinant of bid quality. A precise brief filters out generalists and attracts MQTT engineers whose experience genuinely matches your stack. Head to the
Bids are short proposals, not just price quotes. A strong MQTT developer will read your brief and respond with an interpretation of the work, a proposed approach, and clarifying questions about scale, security, or topology. Read each bid carefully and shortlist candidates whose technical reasoning matches the complexity of your project.
The final decision combines proposal quality with profile evidence. Look at consistency across past projects rather than a single highlight, and weigh client reviews that mention reliability, communication, and protocol-level expertise. For MQTT work, technical depth across multiple brokers and device classes is more valuable than a single deployment.
An MQTT developer specializes in the messaging layer, including broker configuration, topic design, QoS strategy, and protocol-level security. A general IoT developer covers a broader stack including firmware, hardware integration, and cloud applications, but may not have deep expertise in broker tuning or MQTT 5.0 features.
Yes. Many MQTT engagements are scoped as one-off deliveries, such as setting up a Mosquitto or EMQX broker, migrating from MQTT 3.1.1 to 5.0, or integrating an existing fleet with AWS IoT Core. Freelancers on Freelancer.com regularly take on fixed-scope projects in addition to longer retainers.
Timelines depend heavily on scope. A broker setup with TLS and basic ACLs can be completed in days, while building a multi-tenant IoT platform with custom bridging, observability, and device provisioning may take several weeks or months. A clear brief lets candidates give realistic timelines in their bids.
If your bottleneck is messaging reliability, broker scaling, or protocol security, a dedicated MQTT developer is usually enough. If you also need firmware, hardware design, and cloud application work, you can either hire individual specialists for each layer or assemble a small team through Freelancer.com.
Mosquitto is a strong default for small to mid-scale deployments and prototyping. EMQX, HiveMQ, and VerneMQ are commonly chosen for production workloads requiring clustering, high concurrency, or commercial support. An experienced MQTT developer will recommend a broker based on your throughput, security, and operational requirements.

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