Hire the Best Arduino Experts in Kolkata, IN

I am an embedded software developer and hardware designer with 6+ years of professional experience to lead your project to the best level. I provide optimal solutions for both hardware and firmware development, also provide prototypes and the small-scale production of designed hardware. I have expertise in the development of - ► Arduino-based hardware design and firmware development. ► ESP32 and 8266 based hardware & firmware design. ► Esp32 based BLE network, mesh network, ESP NOW mesh development, ► NRF51 based BLE development, ► LORA and LORAWAN based firmware, hardware development and prototype design, ► Chirpstack.TTN server deployment on the local, remote server as well as AWS server. ► AWS +NODE-RED+MQTT+GRAFANA+INFLUX DB-based virtual server deployment and custom UI design. ► The THINGS BOARD deployment on local/remote /AWS server with SSH. ► STM32 - ARM-based firmware development & hardware design and prototype manufacturing. ► Raspberry Pi based custom MQTT web server with custom UI design ► Complete Prototype development with small-scale production capabilities. My hardware design includes a Printed circuit board design with customized requirements. I provide complete PCB layout design, prototype PCB board manufacturing, testing of PCB board with advanced tools, and on-demand I provide small-scale production of the hardware /PCB. Price will be negotiable on hardware design and development. My PCB design features include - ► Multilayer PCB design. ► Both rigid and rigid-flex design. ► Provide BOM with the most available component list. ► Provide Gerber and ECAD files for manufacturing. ► Support prototype and small-scale production (PCB). My last project is " LORAWAN BASED ENERGY METER EXTENSION", where I have to measure the Phase voltage, Line voltage, phase current, Line current, Total energy, power factor and send them to the TTN server using LORAWAN based prototype node device and Dragino gateway. The device was successfully worked and installed in the industry environment. You can see details of its working in my portfolio. My goal is to provide the best quality services at an affordable price within a reasonable timeframe. Please visit my website for more details - www. bit-plexlab.com

✅ Solution Architect | Full-Stack | DevOps | Cloud | AI/ML | LLM Apps | IoT Hi, I’m Niladri — a Solution Architect and Full-Stack Developer with 15+ years of experience helping startups, SaaS companies, and enterprises design, build, automate, and scale secure, production-ready software systems. Clients hire me when they need more than a coder. They need someone who can understand the business goal, design the right architecture, build the product, automate infrastructure, integrate AI where it adds value, and keep the system scalable, maintainable, and cost-efficient. I can work as a senior engineer, architect, DevOps consultant, technical lead, or long-term technology partner. 📊 Skill Ratings DevOps & Cloud Architecture – ▓▓▓▓▓▓▓▓▓▒ 9.5/10 Solution Architecture – ▓▓▓▓▓▓▓▓▓▒ 9.5/10 Backend & API Engineering – ▓▓▓▓▓▓▓▓▓░ 9/10 AI/ML & LLM Integration – ▓▓▓▓▓▓▓▓░░ 8/10 IoT & Embedded Electronics – ▓▓▓▓▓▓▓▓░░ 8/10 Frontend Development – ▓▓▓▓▓▓▓░░░ 7/10 Mobile App Development – ▓▓▓▓▓▓▓░░░ 7/10 🚀 What I Can Help You With ☁️ Cloud, DevOps & Platform Engineering I design and deploy cloud-native infrastructure using AWS, Google Cloud, Azure, DigitalOcean, Heroku, and hybrid/on-premise systems. AWS: EC2, S3, RDS, Lambda, ECS, EKS, Fargate, DynamoDB, CloudFront, Route 53 GCP: Cloud Run, GKE, Firebase, Cloud SQL, BigQuery, Pub/Sub, AI APIs Azure: Functions, App Services, PostgreSQL, DevOps, cloud migration Core DevOps: Docker, Kubernetes, Helm, Terraform, CI/CD, GitHub Actions, GitLab, Jenkins, Bitbucket Pipelines, monitoring, backups, security hardening, high availability, and cost optimization. 🤖 AI/ML, LLM Apps & Automation I help businesses integrate AI into real products and workflows: LLM applications, OpenAI/AWS AI/Google AI integrations, RAG knowledge-base systems, AI chatbots, document processing, vector search with PostgreSQL/pgvector, recommendation engines, predictive analytics, and workflow automation. My focus is not just adding AI features — I design AI systems that are useful, secure, measurable, and practical. 💻 Full-Stack Web Development I build scalable web applications with clean architecture and maintainable code. Backend: Node.js, NestJS, Express, TypeScript, Python, Django, Flask, FastAPI, Java/Spring Boot Frontend: React.js, Next.js, Vue.js, Angular, admin dashboards, SaaS portals Databases: PostgreSQL, MySQL, MongoDB, Redis, DynamoDB, MariaDB, MS SQL I focus on API performance, database design, authentication, authorization, security, testing, and maintainability. 🔗 API Development & SaaS Integrations I build APIs, webhooks, integration layers, and event-driven systems. Experience includes Amazon MWS/SP API/Ads API, QuickBooks Online/Desktop, Xero, FreshBooks, HubSpot, Salesforce, Zoho, Zendesk, Stripe, Twilio, Slack, Asana, REST, GraphQL, Webhooks, Microservices, and Event-driven Architecture. 📱 Mobile App Development React Native, Flutter, and PWAs with real-time chat, push notifications, payments, GPS tracking, offline sync, dashboards, and cloud backend integration. 🌐 IoT & Embedded Systems Embedded Linux, Buildroot, Arduino, ESP, Raspberry Pi, RTOS, FPGA, Petalinux, RFSoC, ZCU111, XRF8, I2C, SPI, UART, TCP, MQTT, sensor integration, and firmware-to-cloud-to-dashboard platforms. 🧠 Technical Leadership I support teams with architecture, cloud review, code/PR review, CI/CD setup, security planning, database/API design, bottleneck resolution, team grooming, scalability planning, and engineering best practices. 🌟 Why Clients Hire Me ✔️ 15+ years of hands-on software, cloud, DevOps, AI, and IoT experience ✔️ Strong mix of architecture, development, automation, and technical leadership ✔️ Ability to work independently or lead a technical team ✔️ Experience with SaaS, fintech, e-commerce, AI, cloud, API integrations, and IoT systems ✔️ Practical mindset: I design systems that can be built, deployed, scaled, and supported ✔️ Strong focus on clean code, security, documentation, automation, and maintainability I don’t just deliver code — I help you build a reliable product, scalable platform, and stronger technical foundation. ⭐ Client Feedback “Nil headed up a full backend solution including RESTful API and AWS cloud setup. He is knowledgeable, understands your needs, and delivers creative, high-quality solutions.” — Douglas Stirling “Nil is an excellent developer — quick to grasp requirements, easy to communicate with, and always delivers well-tested, first-class work.” — Sat Sindhar “Niladri is a highly experienced full-stack programmer with thorough knowledge across technologies. I am extremely satisfied with his services.” — Vishal Agarwal “Niladri is the best at what he does. Very easy to communicate with, delivers flawless work, and provides great support after the job is done.” — Muzaffer Selimbeyoglu 📌 Background Degree in Computer Science CCNA | RHCE Diploma in Computer Hardware & Electronics GitHub Portfolio: fuzonmedia

🌟 𝟴+ 𝘆𝗲𝗮𝗿𝘀 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲𝗱 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗦𝘆𝘀𝘁𝗲𝗺𝘀, 𝗜𝗻𝘁𝗲𝗿𝗻𝗲𝘁 𝗼𝗳 𝗧𝗵𝗶𝗻𝗴𝘀, 𝗘𝗹𝗲𝗰𝘁𝗿𝗶𝗰𝗮𝗹 𝗮𝗻𝗱 𝗘𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿. 🛠️ Are you seeking a reliable and skilled electronic engineer or electrical engineer for embedded systems and Internet of things development, to bring your projects to life? Look no further! I have a seasoned team of electronics engineers specializing in custom solutions using Arduino, ESP32, STM32, and more. With extensive experience in PCB design and firmware development, we can turn your ideas into functional and cost-effective reality. Our Expertise: 🔹 Microcontrollers: Proficient in Arduino (UNO, MEGA, NANO), ESP32, STM32, and other popular platforms. 🌐 IoT Development: Experienced in IoT architecture, sensor integration, and wireless communication protocols (MQTT, HTTPS, HTTP). 🔧 PCB Design: Skilled in PCB layout and schematic design using EasyEDA and KiCad. 💻 Firmware Development: Expertise in programming microcontrollers, implementing protocols (UART, SPI, I2C), developing custom touch screen Ui applications based on LVGL (Squareline Studio) and optimizing code for efficiency. 🌡️ Sensor Integration: Extensive knowledge of various sensors including temperature/humidity, RFID, ultrasonic, gyro, gas sensors, and more. 📡 Communication Protocols: Proficient in UART, SPI, I2C, RS485 (Modbus), Ethernet, TCP-IP, and wireless protocols like BLE, LoRa, and ZigBee. 🌐 IoT Web Services: Capable of integrating with cloud platforms such as Firebase, ThingSpeak, Blynk, and AWS for data logging and remote monitoring. 📱 Mobile & Web App Development: Skilled in Flutter for cross-platform mobile app development and Node.js/Laravel for custom web services. Recent Projects: 🌍 Developed a 4G-based IoT data logger for environmental monitoring (temperature, humidity, CO2). 🏭 Implemented PLC monitoring solutions using RS485 Modbus for industrial automation. 🔵 Created BLE gateways for beacon-based proximity detection systems. 🏗️ Designed real-time structural health monitoring systems using industrial accelerometers and seismic sensors. 🌡️ Deployed high-temperature monitoring systems with 4G/WiFi connectivity. 🔥 Engineered conventional fire alarm systems with 4G/WiFi connectivity and remote alerting capabilities. Why Choose Us? ✅ We are committed to delivering high-quality, scalable, and affordable solutions tailored to your specific needs. Whether you're an individual entrepreneur or a large enterprise, we can collaborate seamlessly to realize your project goals. Let's discuss your requirements and take your project to the next level! Interested in Leveraging Our Expertise? If you're ready to benefit from our electronics engineering, electrical engineering, embedded systems development, and Internet of things solutions, feel free to reach out. We're excited to partner with you on your next venture!

Hi, I help startups and growing companies turn product ideas into scalable web and mobile applications that generate real business results — not just code. With 11+ years of experience and 3500+ successful projects delivered globally, I specialize in building production-ready platforms that are stable, secure, and designed to scale. I work with funded startups, service businesses, and established companies that need reliable execution and long-term technical partnership. I’m backed by a full-service development team at Weavers Web Solutions, allowing me to handle everything from strategy and UI/UX to backend architecture, deployment, and post-launch support. That means you don’t just get a freelancer — you get structured delivery and accountability. What sets my work apart: ====================== • Clean, conversion-focused UI • Scalable backend architecture • Fast iteration for MVPs • Reliable communication and structured milestones • On-time delivery without overpromising I build: ====== Web Applications & SaaS Platforms Custom React / Next.js applications with Node, Laravel, or Python backends — optimized for performance, SEO, and scalability. eCommerce & Revenue Platforms ============================ Shopify, WooCommerce, Magento, and custom commerce systems designed for conversion and growth. Mobile Applications React Native and Flutter apps for iOS & Android, including marketplace apps, on-demand services, SaaS apps, and AI-powered platforms. If you need a partner who understands both business goals and technical execution — let’s talk.

I am an Electronics and Communication Engineer with over 12 years of experience in Industrial Electronics ,Product designs, PCB designs, Embedded Firmware codes on STM32 and ESP32, custom desktop applications to communicate with external hardware devices. I know the hardware and software part to make devices work. In my years of experience I have designed circuits like Smart Bicycle Tail light with light and speed sensor, RFID inventory application to track stocks, Bluetooth Enabled BLE asset tracker devices, etc. to name a few. If you have a product concept, let me know - I will complete the idea and transform it from a prototype into a physical product.

I have 10+ years in IoT, tech, AI, and project management. Leading a dynamic team, we excel in IoT, CRM, home automation, and system design. Proficient in IoT platforms (ESP, Raspberry Pi, ZigBee, Z-Wave, LoRa, Arduino), hybrid app development (Android, iOS), Python, UWP, .NET, IoT cloud, MQTT, WebSocket, and project management.