Embedded Hardware/PCB & Firmware Engineer Required-Kolkata

@Amidst

Hey there! I’m Alok, A PCB, Circuit and Mechanical designer with a passion for turning ideas into rock-solid, high-performance circuit boards. even expert on Python, C, C++ With nearly a decade of experience, I’ve tackled everything from compact consumer gadgets to complex industrial systems—always with a focus on precision, efficiency, and reliability. # Schematic & Layout Design – Clean, optimized, and manufacturable. # Component Selection & Library Management – No surprises, just the right parts for the job. # Reverse Engineering – PCB cloning, replication, and improvements. # Gerber, BOM & CPL Generation – Ready for seamless production. # DFM & DFA Expertise – Because great design means smooth manufacturing. # Multi-Layer, Flex, & High-Density PCB Design – Whatever the project needs. If you need a PCB and Code that’s efficient, reliable, and built for real-world performance, let’s chat. I’d love to help bring your project to life!

@cesur135

As a Kolkata-based freelancer with extensive experience in industrial automation, I believe I'm an ideal candidate for your Embedded Hardware/PCB & Firmware Engineer project. Having spent significant time and delivering successful projects in the field of industrial automation, I possess not just theoretical knowledge but hands-on proficiency as well. My familiarity with several frameworks, including STM32 Nucleo / Discovery boards and Embedded C/C++ and STM32 firmware, aligns perfectly with your requirements. Having worked on IoT projects involving components like UART / USART / RS485 / Modbus RTU, GSM / 4G / LTE modules and AT commands, PCB schematic & layout – KiCad / Altium / Eagle / EasyEDA, and more, I am confident that my broad skillset would bode well with your project goals. Additionally, my knowledge of component selection & BOM preparation and power supply and protection circuits adds an extra edge to my capabilities. Another advantage that sets me apart from my peers is my hands-on experience in hardware troubleshooting and PCB debugging. This unique blend of skills in both firmware/software development and PCB troubleshooting makes me self-sufficient in handling complex engineering challenges. To add to these qualities, I also possess experience in ESP32, MQTT, LoRa, FreeRTOS, CAN, BLE/Wi-Fi - a good-to-have element for your project. I believe we can not only meet but exceed your expectations together.

@shivkantverma

Hi, Greetings! I am interested in working on your project. Could you please share the design details and technical requirements so we can discuss the project scope and key parameters in detail? I look forward to working with you. Thank you! Shivkant Verma

@Santoshchaulaga

Hello, I am Santosh Chaulagain, a professional Electrical Engineer and PCB Designer with over 7 years of experience in schematic design, PCB layout, and embedded systems, including ESP32, IoT devices, analog and digital circuits. I have successfully completed multiple projects for clients worldwide, delivering reliable and manufacturable designs. I have carefully reviewed your project requirements and I am confident that I can provide a high-quality solution tailored to your needs. My expertise includes PCB design using industry standards, component selection, BOM preparation, Gerber generation, and design optimization for cost and performance. I always ensure that my designs are fabrication-ready and tested for reliability. I focus on clear communication, timely delivery, and customer satisfaction. I am happy to discuss your project in detail and provide revisions until the final result meets your expectations. Looking forward to working with you. Best regards, Santosh C. Electrical Engineer | PCB Designer | ESP32 & IoT Specialist

@hexabitzprojects

Hi, This project is an excellent match for my **16 years of hands-on Embedded Hardware, PCB and Firmware R&D experience**. I have extensive experience with **STM32, Embedded C/C++, UART/USART, RS485/Modbus RTU, GSM/4G modules, industrial sensors and custom PCB development**. I have completed **STM32/ESP32 industrial IoT controllers, RS485/Modbus systems, cellular/GPS trackers, MQTT devices, sensor acquisition boards and multilayer production PCBs**. I handle both hardware and firmware, including schematic/layout, BOM, power/protection, PCB bring-up and oscilloscope/logic-analyzer debugging. I can independently troubleshoot **ADC, 4–20mA, 0–2V, UART/RS485, USB-to-RS485 and GSM/LTE AT-command interfaces**, including hardware-level communication and signal issues. I’m proficient with **KiCad, Altium and EasyEDA Pro**, STM32CubeIDE/HAL/LL, FreeRTOS, ESP32, MQTT, CAN and BLE/Wi-Fi. I can share relevant STM32, industrial IoT and PCB work through my profile. I’m available for the initial project and open to long-term collaboration. **Availability:** Immediate **Location:** Delhi NCR; available remotely and for coordination with Kolkata team. Best regards, **Subhash Suman** Embedded Hardware | STM32 | PCB | Industrial IoT **16 Years R&D Experience**

@AnchelHuman

⚠️ IF YOU’RE NOT HAPPY, YOU DON’T PAY ⚠️ I have extensive experience with STM32 Nucleo boards, embedded C/C++, and PCB design using KiCad. My hands-on approach allows me to troubleshoot and debug hardware effectively, ensuring smooth integration of sensors and interfaces. I understand your need for reliable, practical solutions in your IoT project. To achieve your goals, I will focus on clean implementation and thorough testing, ensuring long-term functionality and support. My prior projects demonstrate my commitment to quality, and I’m eager to bring that same dedication to your team. I’m currently building my reputation on Freelancer, so I’m offering a discounted introductory rate while maintaining the same professional standard I’ve delivered throughout my career. Let’s chat about how I can help you succeed! Regards, Anchel

@ferozv

I can support this project with my experience in embedded systems, PCB development, firmware, and industrial automation. My skills include microcontroller programming, Embedded C/C++, circuit design, PCB schematic and layout, component selection, BOM preparation, hardware-software integration, sensor interfaces, communication interfaces, debugging, and system testing. I can work on STM32-based embedded solutions, UART/USART and RS485 communication, industrial control systems, and practical hardware development with a focus on reliability and stable operation. I also have experience developing control systems and integrating sensors and electronic hardware, which aligns well with the requirements for an IoT/industrial electronics project. I approach PCB and firmware development as an integrated system, allowing hardware and software issues to be identified and resolved efficiently. I can independently contribute to prototyping, debugging, PCB bring-up, firmware development, and testing.

@PauloRoberto276

Olá! Tenho interesse no projeto e estou totalmente disponível para trabalhar de forma remota, mesmo estando localizado no Brasil. Sou Técnico em Eletrotécnica e estudante de Engenharia Eletrônica, com experiência prática em desenvolvimento, reengenharia, diagnóstico e testes de hardware e sistemas embarcados. Tenho experiência com STM32, ESP32, Arduino, C/C++, UART/RS485, interfaces industriais, sensores, ADC, condicionamento de sinais, alimentação e desenvolvimento de PCBs. Também trabalho com KiCad, EasyEDA e outras ferramentas de desenvolvimento eletrônico. Minha experiência é bastante voltada para hardware, incluindo montagem, medições e troubleshooting utilizando osciloscópio, analisador lógico, multímetro e fontes de bancada. Também possuo experiência prática com sinais de alta velocidade, SDI, Ethernet/Gigabit, fibra óptica e circuitos de maior complexidade. Posso atuar no desenvolvimento completo, incluindo: • Esquemático e arquitetura; • Seleção de componentes e BOM; • Layout e roteamento da PCB; • Firmware embarcado; • Integração de sensores e interfaces; • Testes e depuração de hardware; • Preparação dos arquivos para fabricação. Tenho interesse em uma colaboração de longo prazo e posso me adaptar ao fluxo de trabalho e ferramentas da equipe. Estou disponível para comunicação e acompanhamento remoto durante todas as etapas do projeto. Posso compartilhar meu portfólio e projetos anteriores de hardware/PCB para avaliação.

@paulpham93

Hi, I'm Paul — an embedded engineer specializing in STM32 firmware, PCB design, and IoT systems. I deliver end-to-end hardware + firmware solutions, from schematic to production-ready prototypes. My Upwork profile has earned over $300,000 on Upwork with account Paul.P. DevBrix builds reliable embedded products, from industrial sensors to connected devices — feel free to review past work at https://devbrix.com. I'd love to discuss your IoT requirements and timelines. Best regards, Paul.

@OWAIS14325

With over a decade's worth of hands-on experience in Embedded Systems, Firmware Development, and PCB Layout, particularly with STM32 microcontrollers, I believe I'm the ideal choice for your IoT/industrial electronics project. My proficiency extends to schematic design, component selection, power supply circuits, and even hardware testing. Moreover, my familiarity with crucial interfaces like UART/USART/RS485 and protocols such as Modbus RTU will prove instrumental to your project's success. Furthermore, I possess comprehensive knowledge and expertise surrounding GSM/4G/LTE modules and AT commands – a skillset that can strengthen the connectivity aspect of your product. Alongside these proficiencies, my experience with KiCad/Altium/Eagle/EasyEDA guarantees solid PCB design decisions, which further complements my already strong grounding in embedded systems. This comprehension extends to utilization of important tools like logic analyzers and oscilliscopes for debugging.

@moaath32010

Hi there, I am an Electrical & Embedded Systems Engineer specializing in end-to-end hardware development, multi-layer PCB layout, and low-level firmware engineering for STM32 microcontrollers. Why I’m a great fit for your project: STM32 & Firmware Engineering: Deep expertise writing clean, modular C/C++ firmware (HAL/LL libraries, FreeRTOS), configuring DMA, timers, interrupts, and power management. Industrial Protocols: Extensive experience designing hardware and writing drivers for Modbus RTU over RS-485 (UART/USART), isolated transceivers, and USB interfaces. Cellular/IoT Modems: Proven track record integrating 4G/LTE & GSM modules, AT command parsing, robust reconnection logic, and MQTTS cloud telemetry. PCB Design & DFM: Proficient in KiCad & Altium for schematic capture, controlled-impedance layouts, component selection, and producing full Gerber/BOM/Pick-and-Place manufacturing packages. Hardware Debugging: Equipped for component-level board bring-up, logic analyzer/oscilloscope verification, and signal integrity troubleshooting. I maintain clear communication, organized Git repositories, and detailed documentation throughout the project lifecycle. Let's discuss your hardware block diagram, target timeline, and specific firmware requirements so we can begin! Best regards, Moath Mathkour Electrical & Embedded Engineer

@ostronik

Hi, Greetings from OSTronik India! We are a technology-driven company specializing in Power Electronics and Embedded System Design integrated with Artificial Intelligence (AI) and Mobile Application Development, delivering reliable, industrial-grade electronic and software solutions—from concept to mass production, all under one roof. Our in-house capabilities include R&D, Firmware Development, Hardware Design, Mobile Application(Android & iOS), Prototyping, and Scalable Mass Production, with a strong focus on quality, performance, and cost efficiency. Core Expertise: • Microcontrollers: PIC, STM32, ESP Family, AVR. • Microprocessors: Raspberry Pi • Development Tools: MPLAB X IDE, STM32CubeIDE, Arduino IDE, Atmel Studio, VS Code • Hardware Design: Industrial-grade multilayer PCBs using Altium Designer with optimized power design, isolation handling, and EMI/EMC compliance • Communication Protocols: UART, SPI, I²C, CAN, Modbus, MQTT, LAN, S-Bus, RS-485 Mobile Application Capabilities: • Custom Android & iOS mobile applications for device control, monitoring, and data visualization • Real-time dashboards, cloud connectivity, and secure user authentication • Seamless integration between IoT platforms and mobile apps We have successfully transformed multiple concepts into market-ready electronic and mobile-enabled solutions. We would be glad to share a brief reference video. Let’s schedule a meeting to discuss your requirements in detail. Best Regards, Team OSTronik India