Hire the Best IOTA Freelancers in Karachi, PK

Top Rated Plus Embedded Hardware & Firmware Engineer with 8+ years of experience building reliable embedded products, IoT systems, and production-ready electronics. I help startups, product teams, and manufacturers take an idea, prototype, or broken design and turn it into a working embedded product that can be tested, manufactured, and scaled. My work connects hardware, firmware, and real-world product execution. Instead of treating the circuit, code, sensors, connectivity, power system, enclosure, and manufacturing process as separate pieces, I help bring them together into one reliable product. WHAT I BUILD • Custom schematic and PCB design for reliable embedded hardware • Embedded firmware development in C/C++ for real-world products • ESP32, STM32, Nordic, Arduino, Raspberry Pi, and Embedded Linux platforms • BLE, Wi-Fi, LTE, Cat-M1, NB-IoT, LoRa, NFC, GPS/GNSS, and sensor integration • Low-power electronics, battery-powered devices, BMS, and power management • Industrial interfaces including UART, SPI, I2C, RS-485, CAN, Modbus, ADC/DAC, and GPIO • Board bring-up, debugging, firmware validation, and hardware troubleshooting • BOM preparation, Gerber files, assembly files, DFM review, and manufacturing support I have worked across wireless IoT devices, wearable and medical electronics, industrial monitoring systems, automation hardware, smart sensors, connected consumer products, and custom embedded controllers. WHY ONE TECHNICAL OWNER Clients usually come to me when they need more than a schematic or a firmware file. They need someone who can understand the complete system, identify risks early, solve hardware and firmware integration issues, and move the product closer to production. I also lead a full-service engineering team when projects require additional support across mechanical enclosure design, cloud integration, mobile app development, product design, or manufacturing coordination. This gives clients one technical owner while keeping the embedded hardware and firmware work technically grounded. Tags: Electronics engineering , Electrical Engineer, Electrical Engineering, Electronics, Hardware, Firmware, PCB, PCB layout, Board Layout, Schematics, Altium Designer, IoT, Internet of Things, Power Electronics, Bluetooth, BLE, TI, Texas Instruments, C, C++, MCU,RTOS, Microcontroller, prototype, validation, Enclosures, BMS, Android, iOS, Java, Swift, Mobile Apps, Database, React, AWS, Python, ESP32, Arduino, PLATFORMIO, PIC, NXP, Texas Instrument, Nordic, DIALOG, STM32, LCD, Raspberry Pi, Oil and Gas Automation,RF, XBEE, Wi-Fi, BLE, Production, Prototyping, LoRa WAN, Manufacturing, Assembly, Motor Driver, Prototype, Wireless Module, Controllers, EASY EDA, KiCAD. READY TO BUILD? Send me your requirements, target platform, connectivity needs, power constraints, current design files, and production volume. I’ll respond with a clear technical scope within 24 hours. Warm Regards, Shan Ahmed Usmani

🔷 Experienced Product Design Engineer with a demonstrated history of developing fully realized products for IOT, Embedded Hardware and Software. 🔷 Helped launch Pakistan's first IOT based smart water purifier. 🔷 Skilled in developing Data Science/Analytics solutions (especially Remote Data Capture, data cleaning, statistical analysis and decision making ) 🔷 Experienced in developing autonomous robotics systems including UGVs and UAVs 🔷 Strong professional research background in computer science and engineering spanning different disciplines from custom hardware, firmware, and software development. ✅ Technical Expertise ✓ Microcontrollers: 🔶 ATMEGA, STM32, ESP32, Nordic Semiconductor (nRF series), PIC, and ARM Cortex-based systems ✓ Programming Languages: 🔶 C, C++, Python, Embedded C, and Assembly ✓ Embedded Systems Concepts: 🔶 Real-Time Operating Systems (RTOS) 🔶 Sensor fusion algorithms (IMU/GPS integration, accelerometer, gyroscope calibration) 🔶 Custom PCB design and firmware development 🔶 Signal processing and control algorithms ✓ IoT Development: 🔶 Extensive experience with MQTT, HTTP protocols 🔶 AWS IoT and custom cloud-based backends 🔶 Low-power wireless communication (Bluetooth, Zigbee, LoRa) 🔶 Edge computing and remote monitoring solutions ✓ Software Development: 🔶 Embedded firmware for custom devices 🔶 Integration of hardware with cloud services 🔶 Development of control systems and automation processes ✓ Mechanical Design 🔶 Custom casings and enclosure design and development ✓ Development Tools: 🔶 Atmel Studio, MPLAB X, and PlatformIO 🔶 Arduino IDE, STM32CubeMX, and Nordic nRF Connect SDK 🔶 VS Code, Eclipse, and Visual Studio ✓ PCB Design: 🔶 Altium Designer, KiCad, and Eagle CAD 🔶 EasyEDA and Proteus ✓ Simulation and Analysis: 🔶 MATLAB/Simulink for control system modeling and signal processing 🔶 LTspice for circuit simulation ✓ Version Control & Collaboration: 🔶 Git, GitHub, GitLab, and Bitbucket 🔶 Jira, Trello for project management

𝗜 𝗵𝗲𝗹𝗽 𝘀𝘁𝗮𝗿𝘁𝘂𝗽𝘀 𝗮𝗻𝗱 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘁𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺 𝗶𝗱𝗲𝗮𝘀 𝗶𝗻𝘁𝗼 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗲𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝗮𝗻𝗱 𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. I specialize in end-to-end product development from schematic and PCB design to embedded firmware, IoT connectivity, web dashboards, and mobile applications. Whether you're building a prototype, MVP, or production-ready product, I can take your project from concept to deployment. ━━━━━━━━━━━━━━━━━━━━ 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗕𝘂𝗶𝗹𝗱: 𝗣𝗖𝗕 𝗗𝗲𝘀𝗶𝗴𝗻 & 𝗘𝗹𝗲𝗰𝘁𝗿𝗼𝗻𝗶𝗰𝘀 • Single-layer, double-layer, and multi-layer PCB design • Schematic capture • Component selection • BOM creation • ERC/DRC validation • Gerber generation • Manufacturing-ready documentation 𝗧𝗼𝗼𝗹𝘀 • Altium Designer • KiCad • EasyEDA • Fusion 360 Electronics • ESP32-WROOM-S3 • ATmega328P • nRF52833 • Arduino • Raspberry Pi • Wi-Fi • BLE • LoRa • GSM • GPS • NRF24L01 • UART • SPI • I²C • CAN • PWM • ADC • USB • ESP-IDF • Buck Converters • Boost Converters • Buck-Boost Converters • Battery Charging & Protection Circuits • Voltage Regulators • Sensor Interface Circuits • RF Transmitter & Receiver Circuits • Power Management Systems 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • C/C++ • Arduino IDE • PlatformIO ━━━━━━━━━━━━━━━━━━━━ 𝗜𝗼𝗧 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 I build complete IoT ecosystems where embedded devices communicate with cloud platforms and real-time dashboards. • Remote Monitoring Systems • Device Management Platforms • Industrial Automation • Telemetry Systems • Smart Home Solutions • Real-Time Dashboards • Sensor Data Collection & Analytics ━━━━━━━━━━━━━━━━━━━━ 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Node.js • Express.js • PHP • Laravel • React.js • Next.js • JavaScript • TypeScript • HTML5 • CSS3 • Tailwind CSS • Bootstrap • MySQL • PostgreSQL • Firebase • Supabase ━━━━━━━━━━━━━━━━━━━━ 𝗠𝗼𝗯𝗶𝗹𝗲 𝗔𝗽𝗽 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Flutter • Dart • Firebase Authentication • Firestore • BLE Integration • REST APIs • Push Notifications ━━━━━━━━━━━━━━━━━━━━ 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 & 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 • REST APIs • Authentication Systems • Stripe • Paystack • Flutterwave • PayPal • Third-Party API Integrations ━━━━━━━━━━━━━━━━━━━━ 𝗗𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 & 𝗗𝗲𝘃𝗢𝗽𝘀 • DigitalOcean • Hostinger • Vercel • Linux Servers • Docker • Git • GitHub • GitLab • Composer • npm • CI/CD Workflows ━━━━━━━━━━━━━━━━━━━━ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 ✔ End-to-end product development (Hardware + Firmware + Software) ✔ Production-ready PCB designs with complete manufacturing files ✔ Clean, scalable, and maintainable code ✔ Strong communication and on-time delivery ✔ Long-term project support and maintenance ✔ Quality-focused engineering solutions built for real-world deployment Whether you need a 𝗰𝘂𝘀𝘁𝗼𝗺 𝗣𝗖𝗕, 𝗲𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲, 𝗜𝗼𝗧 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺, 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻, 𝗲𝗿𝗽 𝘀𝘆𝘀𝘁𝗲𝗺, or a 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗵𝗮𝗿𝗱𝘄𝗮𝗿𝗲-𝘀𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻, I'm ready to help bring your idea to life.

Need hardware that actually works in the field? I design PCBs and write embedded firmware for ESP32, STM32, Arduino and Raspberry. From schematic to production-ready prototype. Having 25+ years of hands-on experience. Clean layouts, stable firmware, and real-world tested results." I’ve worked extensively with microcontrollers, processors SOCs and development boards. My work includes 𝗲𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗰𝗼𝗻𝘁𝗿𝗼𝗹𝗹𝗲𝗿𝘀, 𝗜𝗼𝗧 𝘀𝘆𝘀𝘁𝗲𝗺𝘀, 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 𝗰𝗶𝗿𝗰𝘂𝗶𝘁𝘀, and wireless communication setups such as 𝗪𝗶-𝗙𝗶, 𝗕𝗟𝗘, 𝗟𝗼𝗥𝗮, and 𝗚𝗦𝗠. 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝘄𝗶𝘁𝗵: • PCB design (KiCad, EasyEDA, Altium) • Firmware development in C/C++ • ESP32/STM32 projects • Sensor automation & motor/servo control • MQTT/Firebase IoT dashboards • Long-range wireless communication • Converting ideas into working prototypes My approach is 𝗽𝗿𝗮𝗰𝘁𝗶𝗰𝗮𝗹 𝗮𝗻𝗱 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲-𝗱𝗿𝗶𝘃𝗲𝗻. I focus on clean 𝗰𝗶𝗿𝗰𝘂𝗶𝘁 𝗱𝗲𝘀𝗶𝗴𝗻, 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝗱 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲, and proper debugging to ensure 𝗹𝗼𝗻𝗴-𝘁𝗲𝗿𝗺 𝘀𝘁𝗮𝗯𝗶𝗹𝗶𝘁𝘆. If you need a senior engineer who understands electronics from the 𝗳𝗼𝘂𝗻𝗱𝗮𝘁𝗶𝗼𝗻 𝗹𝗲𝘃𝗲𝗹 and can deliver a 𝗰𝗼𝗺𝗽𝗹𝗲𝘁𝗲, 𝘄𝗼𝗿𝗸𝗶𝗻𝗴 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻 then i am your guy.

From prototype to production I build complete IoT and embedded systems that work in the real world, not just on a breadboard. With 5+ years of experience and 150+ projects delivered across aviation, agricultural, automotive, industrial and smart home applications, I handle the full stack: firmware, PCB design, cloud integration, and deployment. You get one engineer who owns the whole product not "three freelancers patching each other's work." What I build: Embedded firmware for ESP32, STM32, Raspberry Pi, Arduino, ATmega, and NRF52 including OTA updates, low-power optimization, watchdogs, and protocol stacks (UART, SPI, I2C, CANbus, RS485, Modbus). End-to-end IoT systems with Wi-Fi, BLE, LoRa, Zigbee, GSM, and NB-IoT connectivity, integrated with AWS IoT Core, Firebase, ThingsBoard, Node-RED, MQTT, and REST APIs. PCB design up to 3 layers using Altium, KiCad, and EasyEDA covering power supply, sensor interfacing, EMI/ESD protection, prototyping, and validation. Custom cloud dashboards and platform integrations: Grafana, Blynk, Home Assistant, ESP Rainmaker, and custom HTML/API solutions. Industries I've worked in: - Aviation (Solar powerd Aviation lights control) - Industrial IoT - Agriculture and Hydrophonics - Smart building automation - Automotive How I work: I communicate at every milestone, write clean modular code built for production (not just demos), and deliver on time. I'm open to NDA for any project requiring confidentiality. If you're building a smart device, an industrial automation system, or a connected hardware product, message me with your idea and we can scope it out in a quick call.

I have a wealth of experience in DevOps, Automation, N8N, Thingsboard and IoT. I have been providing technical support as well. I have several years of experience in the field of Automation and IoT. I also have several years of technical support experience, including online, over the phone, through emails, and in person. I have been dealing with non-technical users very efficiently, assuming that they have no prior knowledge of computer and software-related issues. I have been using TeamViewer software for remote technical support and troubleshooting for several years. I am pleased to offer my services to anyone.