Hire the Best Internet of Things Specialists

I am the Founder & Principal Consultant at Iottive, where I lead high-performance engineering teams to design, architect, and build sophisticated IoT and AIoT products for global clients. With 15+ years of deep hands-on experience, I specialize in transforming complex hardware-software ideas into robust, scalable, production-ready connected systems. My work sits at the intersection of embedded engineering, wireless connectivity, cloud architecture, and AI-driven intelligence — enabling organizations to move faster, reduce engineering risk, and build products that stand up to real-world industrial, medical, and consumer environments. If you’re looking for a consultant who can step in at a senior architecture level, bring clarity to your roadmap, design the right system architecture, and then guide your engineering stack toward successful delivery, I’m the partner you want. I support clients as a technical advisor, lead engineer, and fractional IoT architect, depending on the engagement. How I Work (High-End Consulting Model) I operate as a: - Fractional CTO - Fractional IoT Architect - Senior Technical Advisor - Lead Engineer for Complex Subsystems - R&D Partner for New Product Development - Technical Due Diligence Reviewer Why Clients Pay a Premium to Work With Me - I bring founder-level ownership, speed, and clarity. - I reduce engineering uncertainty — the most expensive part of IoT development. - I combine hardware, firmware, cloud, and AI knowledge — rare in one person. - I don’t guess — I architect solutions based on real-world deployments. - I lead teams and systems with long-term reliability in mind. - Clients come to me when they can’t afford false starts, delays, or re-architecture — and when they need an expert who can think 10 steps ahead. What I Bring to High-Level Projects 1. System Architecture for Complex IoT Products - I design end-to-end architectures covering hardware, firmware, connectivity, cloud, apps, data flow, device security, and scalability. 2. Embedded, Firmware & Connectivity Leadership - Zephyr, FreeRTOS, ESP-IDF - BLE 5.x, Mesh, Wi-Fi, NFC, UWB, Matter, Thread - OTA, secure boot, power optimization - I bring a strong combination of low-level engineering and system-level thinking, ideal for teams building new hardware devices. 3. Mobile + Device Integration (iOS/Android/Flutter/ReactNative) - I architect and build mobile experiences that sync reliably with embedded devices — pairing, control, OTA, dashboards, alerts. 4. Cloud, Data & Digital Twins - AWS IoT Core, Azure IoT Hub, MQTT/Kafka pipelines, digital twins, role-based access, observability. - This includes designing multi-layered systems for manufacturing, energy, healthcare, and consumer IoT. 5. Edge AI & Intelligent Automation - Predictive maintenance, anomaly detection, vision analytics, on-device inference. 6. Pilot, Certification & Production Advisory - I guide clients from prototype → pre-production → compliance (CE/FCC) → manufacturing scale. Industries Where I Deliver the Most Impact 🏭 Industrial & Manufacturing - Predictive maintenance, digital twins, AGVs, condition monitoring, energy management, QA automation. 🏥 Healthcare & Medical IoT - Remote patient monitoring, RTLS, equipment tracking, compliance-driven devices (HIPAA-ready). ⚡ Energy & Utilities - Smart metering, grid monitoring, field telemetry, outage detection. 🛒 Retail & Connected Commerce - Smart shelves, automated checkout, inventory tracking, real-time analytics. I work best in environments where reliability, security, real-time operation, and scalability matter. Engagement Style - High-touch, transparent communication - Technical leadership + hands-on engineering - Strong attention to architecture, quality, and long-term maintainability - Ability to work with your internal teams or bring my own specialists through Iottive Typical Client Profiles - Funded startups building a connected product - Enterprises modernizing manufacturing or medical systems - Hardware companies needing BLE/firmware/cloud expertise - Teams preparing for compliance, pilots, or production Core Technical Expertise - Embedded & Hardware - PCB & Circuit Design - Zephyr, FreeRTOS, ESP-IDF - Sensor architectures - Power optimization - OTA, secure boot, TPM - BLE, Wi-Fi, UWB, Zigbee, Matter, Thread - Mobile & UX for Connected Devices - iOS / Android - Flutter & React Native - BLE pairing, control, logging - Real-time dashboards - Cloud & Backend - AWS IoT Core - Azure IoT Hub - MQTT, Kafka, gRPC - Digital Twins - Role-based access & observability - AI & Analytics - Predictive maintenance - Anomaly detection - TensorFlow Lite, ONNX, Edge AI

As a seasoned programmer, I bring a wealth of technical expertise and a proven track record in native and cross platform mobile app development for iOS and Android platforms. My skills encompass a wide array of functionalities, including Push and APNS, Geo-fencing, Payment processing (card readers), maps, mobile device management, QR code scanners, Blockchain and integrations with services such as Paypal, Stripe, and Parse. In addition to mobile and backend development, I have hands-on experience integrating AI-powered solutions into applications, including intelligent chatbots, recommendation engines, predictive analytics, Computer Vision and automation workflows. I have worked with modern AI APIs and frameworks to enhance user experience through personalization, smart insights, and real-time decision-making. Listed below is an overview of my skills and the tools I have worked with. Languages : Flutter, FlutterFlow, Dart, React.js, React Native, SwiftUI, Objective-C, Kotlin, T-SQL, C#, JavaScript (ES6+), HTML5, Swift 5+, CSS3, TypeScript, Python, JSON Frameworks : Core Foundation, iOS SDK, Core Data, Core Video, Core Location, MapKit, Social Framework, Core Media, AVAudioEngine, Flutter SDK, Material & Cupertino Widgets, Jetpack Compose (basic) Libraries / APIs : Core Animation, Facebook SDK, jQuery, Google Maps SDK, AFNetworking, CocoaPods, SQLite, Core Graphics, SpriteKit, Parse iOS SDK, Mixpanel SDK, MailChimp API, Node.js, Supabase, Firebase (Auth, Firestore, FCM, Crashlytics), REST APIs, GraphQL, WebSockets Tools : iOS Simulator, Apple Xcode, Android Studio, Visual Studio, VS Code, Git, Bitbucket, GitHub, SVN, Postman, Firebase Console, Fastlane, TestFlight, MailChimp, Jira Platforms : iOS 15–26, Android 10–15, Flutter Mobile (iOS & Android), Flutter Web, Flutter Desktop (Windows, macOS, Linux) CMS / ERP / CRM : Django-Oscar, Django-SHOP, Mezzanine, Odoo – OpenERP (Open Source ERP & CRM), Headless CMS, Custom Admin Dashboards Web / Backend Tools : jQuery, Yahoo UI Library, AngularJS, SQLAlchemy, Peewee, Motor, PyMongo, Django MongoDB Engine, Express.js, NestJS Server end : Azure, Firebase, Google Cloud Functions, AWS (EC2, S3, Lambda), Docker, CI/CD Pipelines Paradigms : Agile Software Development, Scrum, Kanban, MVC, MVVM, Clean Architecture Misc : iOS Video, Backend Integration, Stripe Payments, PayPal, Fintech, Push Notifications, Real-time Sync, Barcode & QR Code (QR Code, DataMatrix, Code39, Code128, PDF417, AZTEC, UPC, EAN) Storage : Microsoft SQL Server, Firebird, MySQL, SQLite, MongoDB, DynamoDB, Redis, MemSQL, Firebase Firestore, Cloud Storage Core specialization in: - Fintech apps- Payments apps, digital wallets, Loyalty rewards, stock trading, referral - Utility apps- Call recorder, keyboard, food delivery - Communication- social networking, audio/video calling - Real estate apps - IoT- BLE/ibeacons, Healthcare - On demand service booking apps - Sports apps - AI & Machine Learning – Predictive analytics, recommendation systems, personalization, chatbots, fraud detection, intelligent automation These verticals can be verified from my profile too. I'm well versed in using wallet based SDKs including Mastercard, Pay- Pal, Braintree, Simply Commerce, Quickpay, Razorpay SDK etc for e-wallet based applications. I have worked extensively with stock trading apps with vast knowledge in exante.eu, Meta trader 5, socket based programming for real time stock price alerts. I can integrate a number of crypto-currency wallets for your app including Bit-coin Core, Electrum, Jaxx cryptocurrencies, Rippex and Exodus that offer an easy-to-use interface, better protection against fraud, Lightweight and easy to set up and easy recovery for BTC using a wallet seed. I thrive on challenges and exhibit hyperactivity when problem-solving. My ability to think deeply and beyond the obvious sets me apart. Let's collaborate and discuss your ideas. I can help you achieve the best solutions for your business needs. I just completed one of my ongoing projects and currently seek new avenues.

Profile Overview: Are you seeking a reliable partner to transform your innovative ideas into robust IoT, mobile, or web applications? With over a decade of experience, I specialize in delivering end-to-end solutions that drive business growth and operational efficiency. What I Offer: • IoT & Embedded Systems: Development of real-time dashboards for monitoring and analytics. Integration of AI-driven insights for predictive maintenance and decision-making. Expertise in firmware development using C, C++, and Python. Proficient in communication protocols like Bluetooth and AWS IoT. Implementation of automated alert systems for critical event notifications. • Mobile & Web Development: Creation of high-performance Android and iOS applications using Flutter. Design of responsive web platforms utilizing React, HTML, CSS, and JavaScript. Development of secure backend systems with Node.js. Seamless integration of RESTful APIs for efficient system communication. • AI Automation: Design and deployment of intelligent automation workflows using machine learning and AI tools. Integration of NLP, computer vision, and predictive models to optimize business processes. Development of smart bots and AI agents for task automation and data processing. Streamlining operations by combining AI algorithms with custom software solutions. • Software Engineering & Cloud Solutions: Full-stack development ensures cohesive front-end and back-end integration. Deployment of scalable and secure cloud infrastructures on AWS. Implementation of CI/CD pipelines adhering to Agile and DevOps methodologies. Incorporation of AI & machine learning for enhanced application intelligence. Robust cybersecurity measures to protect data integrity and privacy. • Hardware & PCB Design: Advanced circuit and PCB development using Altium, Eagle, and KiCAD. Hands-on experience with microcontrollers like ESP32, Arduino, Raspberry Pi, and STM. Integration of sensors for real-time monitoring of environmental parameters. Design of energy-efficient hardware solutions for prolonged operational life. Comprehensive prototype development and rigorous testing for reliability. Proven Track Record: Over the years, I've completed 500+ projects, delivering tangible results across various industries, including healthcare, manufacturing, and logistics. My commitment to excellence ensures that each solution is tailored to meet specific client needs, driving innovation and efficiency. Let's Collaborate: Whether you're looking to develop a new IoT platform, enhance your mobile application's performance, or design a scalable web solution, I'm here to bring your vision to life. Let's discuss how I can contribute to your project's success. Skills: • Programming Languages: C, C++, Python, JavaScript • Frameworks & Tools: Flutter, React, Node.js • Cloud Platforms: AWS IoT • Communication Protocols: UART, SPI, I2C, CAN, USB, Ethernet • Version Control: Git

🎯 With 8+ years of experience in developing IoT and embedded systems using ESP32, ESP8266, Raspberry Pi (2/3/4/5/Pico/Pico W), Arduino, STM32, etc. | HTTP, MQTT, CoAP | AWS IoT Core, Thingsboard, Node-Red, Home Assistant, Tasmota, Blynk, etc., along with custom dashboard integration with firmware. Python, uPython, C/C++, & javascript, I help clients build smart, connected, and scalable solutions. Project and Product development tailored to their real-world needs. 🚀 Bringing Smart Ideas to Life – Reliable, Scalable, and Cost-Effective IoT Solutions Are you seeking a skilled engineer to bring your IoT idea to life as a functional, connected product? I’m a results-driven IoT & Embedded Systems Engineer with a strong foundation in microcontroller & micro-processor programming, Bearmetal driver development, sensor integration, wireless communication, and cloud connectivity. I specialize in building high-performance IoT systems with smooth communication protocols and long-term reliability. ✅ What I Can Do For You: 🔌 Custom IoT/ Firmware development using Arduino, ESP32, Raspberry Pi, and STM32 🛠️ Custom Product Development: I have the whole solution from scratch to product deployment. 📡 Wireless protocols: MQTT, HTTP/HTTPS, WebSocket, BLE, Esp-Now, LoRa, Zigbee, etc. ⚙️ Device protocols: UART, SPI, I2C, I2S, Modbus, CANbus, Baremetal driver development, etc. 🌐 Dashboard Integration: ThingsBoard, Blynk, Firebase, Node-RED, Home Assistant, Tasmota, ESP Rainmaker, etc. 🔧 Embedded Sensor/Actuator interfacing for automation & control 🔁 OTA firmware updates, watchdog timers, and power-saving modes 🧰 Troubleshooting, optimization, and clean modular/OOP-based C/C++, Python firmware. 🛠️ Tools, Technologies & Expertise 📟 Microcontrollers & Boards ESP32, ESP8266 (NodeMCU, WROOM, WROVER) Arduino (Nano, Uno, Mega, Pro Mini, MKR1000) Raspberry Pi (2, 3, 4, 5, Pico, Pico W, Compute Modules) STM32 (Bluepill, STM32F103, STM32CubeMX/HAL) BeagleBone Black, Orange Pi, Banana Pi ATmega328P, ATTiny85, NRF52, RP2040, CH32V, PIC 💻 Programming Languages C, C++, Embedded C (bare-metal, HAL/LL) MicroPython, Python (asyncio, machine) JavaScript (Node.js for IoT, WebSocket) Shell scripting (Bash) for Linux automation JSON, YAML, INI (config formats for IoT) 📡 Communication Protocols # MQTT (public & secured brokers) # HTTP, HTTPS, WebSocket, CoAP # ESP-NOW, BLE, LoRa (RA-02, RYLR), Zigbee (CC2530, ZBBridge) # GSM/GPRS, SIM800L, NB-IoT (BG95, SIM7020), Wi-Fi # RS-232, RS-485, CANbus, Modbus RTU/TCP 🔌 Device/Peripheral Protocols # UART, SPI, I2C, I2S, OneWire, PWM, ADC, DAC # SD Card (FATFS), EEPROM/Flash handling # GPIO interrupt handling, timer/counter config # Bare-metal driver development and peripheral abstraction 🧰 Development Tools & IDEs # Arduino IDE, PlatformIO, STM32CubeIDE, ESP-IDF, VS Code, Thonny, Geany, etc. # Linux (Ubuntu/Raspberry Pi OS/Debian) CLI Tools # Git, GitHub/GitLab, Version Control for Embedded # Serial Monitors (PuTTY, TeraTerm, minicom), Logic Analyzers (Sigrok) ☁️ Cloud Platforms & Integrations # AWS IoT Core (MQTT, Shadow, Rules Engine) # ThingsBoard (CE/PE), Blynk (legacy and new), Firebase Realtime/Firestore # Node-RED (on-prem or cloud), Home Assistant (ESPHome, MQTT) # Tasmota customization (Rules, MQTT, Templates) # ESP RainMaker, Google Firebase, Azure IoT Hub 📊 Dashboards & Custom UIs # Web dashboards with HTML/CSS/JS # REST API consumption and creation. # Local dashboards using Node-RED, Grafana, InfluxDB, etc. 🔐 Security & Optimization #TLS/SSL for MQTT & HTTP # Data encryption (AES, base64, JWTs) # Memory and power optimization for low-power devices (deep sleep, watchdogs) # Fail-safe firmware design with bootloader, rollback 📦 Product Development & Hardware Integration # PCB interfacing and prototyping (breadboard to custom PCB) # Sensor calibration (temperature, humidity, motion, distance, gas, etc.) # Relay, triac, motor, servo, LED matrix, and display (OLED, LCD I2C, TFT) # Custom device firmware from scratch to OTA-ready product 🌟 Why Choose Me: 🧠 Expertise You Can Trust – Solid engineering principles and deep technical know-how 📈 Results-Driven Development – Focused on delivering working, scalable solutions ⏱️ Timely Delivery – Respect for your deadlines and project milestones 📣 Clear & Professional Communication – Regular updates, detailed reports, and zero guesswork 🔁 Post-Delivery Support – Guidance, maintenance, and iteration support available 💯 Client Satisfaction is My Top Priority 💼 Availability: 📅 Available for full-time, part-time, and long-term projects 🌍 Comfortable with clients worldwide and flexible with time zones 🤝 Long-term support, NDA-friendly, and confidential work welcomed 🚀 Let’s build something smart together – Message me today! SHAMIM HASAN Embedded Software Engineer

You have an IoT idea, a half-built prototype, or a device that needs to talk to a cloud backend and mobile app. That is exactly what I build end-to-end. I am a Full-Stack IoT Engineer with 5+ years of experience delivering complete embedded systems products: ESP32 firmware, MQTT broker integration, AWS IoT Core cloud backend, Node.js REST APIs, Flutter mobile apps with BLE and OTA update support, and real-time dashboards for device monitoring and control. Currently engineering IoT products for Bluell AB (Sweden). Top Rated on Upwork with 95% Job Success across 39 projects. What I deliver on every project: - ESP32 firmware: sensor integration, BLE communication, Wi-Fi, low-power optimization, OTA updates - Backend: Node.js + Express REST API, MQTT broker, AWS IoT Core, PostgreSQL, MongoDB - Mobile App: Flutter cross-platform app with real-time IoT controls, BLE device pairing, push notifications - Dashboard: real-time data visualization, device monitoring, remote control - Deployment: AWS EC2, VPS, cloud infrastructure setup Industries I work in: Industrial IoT, Smart Home Automation, Healthcare IoT wearables, Connected Devices, Remote Monitoring Systems, SaaS IoT platforms. If your IoT project needs firmware that runs reliably in the field, a backend that handles your data securely, and a mobile app your users can actually operate message me. I respond within 4 hours.

I am a professional Embedded Engineer with over 10 years of experience in embedded systems design, covering both hardware and firmware/software development. I have also set up and led a full-service engineering team, delivering complete products from concept to production, including hardware design, embedded software, cloud integration, and, AI, mobile app development, product/industrial design. I specialize in wireless IoT devices, wearable/medical technology, and embedded firmware with a strong background in end-to-end product development and team leadership. What We Can Offer Firmware Development - Embedded software for IoT, wearables, medical, and consumer electronics - Driver development, RTOS integration, and low-power optimization - Connectivity stacks: BLE, Wi-Fi, NFC, LoRa, LTE, CAT-M1, NB-IoT - Secure OTA updates, device provisioning, and cloud integration Hardware Design - Custom PCB design with multiple layer and layout for high-reliability embedded systems - Power management & battery systems (BMS, energy optimization) - Prototyping, testing, and design-for-manufacturing (DFM) Product & Industrial Design - Mechanical design, 3D modeling, and enclosure development - Ergonomics and usability design for consumer and medical devices - Design-for-production (DFP) and certification support (CE, FCC, FDA-ready) AI & Data Processing - Edge AI/ML model deployment (Edge Impulse, TensorFlow Lite) - Predictive maintenance and anomaly detection for IoT/IIoT - Cloud-based AI integration with AWS/Azure/Google Cloud Mobile App & Cloud Integration - Cross-platform mobile apps (Android/iOS) - Secure Bluetooth, Wi-Fi, and cloud connectivity with devices - Web portal/dashboard development for monitoring and analytics