展示 21 结果
高级威客
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雇用 yaroslavmark
Hello. I am an experienced Automation Engineer & Hardware Designer with 10+ years of expertise in PLC programming, industrial controls, embedded systems, and custom PCB development. I bring together both industrial automation and electronics engineering, allowing me to design complete control solutions — from PLC...Hello. I am an experienced Automation Engineer & Hardware Designer with 10+ years of expertise in PLC programming, industrial controls, embedded systems, and custom PCB development. I bring together both industrial automation and electronics engineering, allowing me to design complete control solutions — from PLC logic and HMIs to custom PCBs, sensor interfaces, power electronics, and machine-control hardware. 🧩 Core Competencies 🧩 🔧 PLC & Automation Engineering - Siemens: S7-1200 / S7-1500 / S7-300, TIA Portal, STEP7 - Allen-Bradley: ControlLogix, CompactLogix, MicroLogix (Studio 5000 / RSLogix) - Schneider Modicon, Mitsubishi FX/Q, Omron CJ/CP - HMI/SCADA: WinCC, FactoryTalk View, Ignition, Weintek, Delta - Communication: Modbus RTU/TCP, Profinet, EtherNet/IP, Profibus, OPC-UA - Industrial Controls - VFD/Servo setup (Siemens, ABB, Delta, Rockwell) - Sensor integration (analog, digital, RTD, thermocouple) - PID loops, motion control, interlocks & machine safety 📡 PCB & Electronics Design - PCB Design Tools: KiCad 6/7/8, Altium Designer, Eagle / Fusion 360, - Hardware Expertise: Mixed-signal hardware (analog + digital), High-voltage / low-voltage mixed PCBs, SMPS power stages • DC-DC converters, Motor drivers, relays, MOSFET/PWM control, Microcontrollers: Raspberry Pi Pico, STM32, ESP32, AVR, PIC, Communication hardware: RS-485, CAN, Ethernet, isolated I/O, Sensor conditioning, ADCs, op-amps, filters, EMC/EMI-friendly layout & safety-critical design 🧰 Tools & Platforms - TIA Portal, STEP7, Studio 5000, RSLogix - WinCC, FactoryTalk View, Ignition SCADA - KiCad, Altium, Eagle - AutoCAD Electrical, EPLAN - C/C++ for embedded, MicroPython, FreeRTOS 收起 -
雇用 macroenergy
DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux...DearSir, My background is related with: -Digital Motor Control -Analog Design -Electronic Design -PowerElectronics -Renewable energy -PCB design -Embedded system -Matlab -Simulation of hardware For each concept descriptions are as follows: Digital Motor Control: -3-phase induction motor vector control drive -Flux estimation algoritm generation -DSP(TMS320) implementation on motor drive -Low speed application -Torque and speed loop generation -Control algoritms -BLDC motor -Step motor -DC motor Analog design -Low power distribution -Noissless special opamp based analog circuits -Analog filters -Orcad simulation of several circuits Electronic Design -RF transmitter and receiver -Bluetooh reade rand transmitter -Magneticreader PowerElectronics -Implementation motor drive -AC/DC converter -DC-DC converter -Battery charger -Solar inverter -Renewable Energy -Uninterruptle power supplies PCB design -Schematic design by Altium -PCB design by Altium -Power board design -SMPS board design -Easyeda -CAD files of manufacturers Embedded system -ESP32,ESP8266,modules -Bluetooth and Wifi -PIC18,PIC24,PIC30 and dsPIC applications -Ardino -MSP430 -Atmel -DSP(Texas Instruments) -Renesas -STM32 -C2000 Matlab -Power Electronics simulation -Motor drive -WindEnergy -Solar Energy -Control applications Simulation of Hardware -Orcad Simulation (TI,National, LinearTech, Maximlibraries) -LTI -National -Matlab -Easyeda 收起 -
雇用 cmsivolella
⭐️⭐️⭐️⭐️⭐️ Embedded Systems Engineer with over 4 years of industry experience delivering complete, production-ready solutions in hardware design, firmware development, and product integration. As a freelance engineer, I’ve collaborated with startups and established companies to bring over 20 products to market...⭐️⭐️⭐️⭐️⭐️ Embedded Systems Engineer with over 4 years of industry experience delivering complete, production-ready solutions in hardware design, firmware development, and product integration. As a freelance engineer, I’ve collaborated with startups and established companies to bring over 20 products to market across the consumer, industrial, and medical sectors. I work across the full product lifecycle — from early specification and prototyping to manufacturing support and field testing. My expertise spans custom PCB design, RTOS-based and bare-metal firmware, and embedded Linux systems, using technologies like Altium, STM32, nRF52, ESP32, FreeRTOS, Zephyr, and more. I also support clients with architecture decisions, hardware/firmware co-design, and design optimization for cost, manufacturability, and reliability. Relevant Skills: ● Hardware design and PCB development (Expert) - Custom PCB design: Rigid, Flex and Rigid-flex technologies. - EDA tools: Altium Designer, OrCAD and KiCAD. - System-level design and project planning. - Schematic capture and library management. - Multilayer layout design following IPC and industry best practices. - High-speed digital, mixed-signal, RF/wireless, and power electronics design. - Interfaces: DDR, LVDS, HDMI, SATA, USB, Ethernet. - Circuitry: DC-DC converters, MCU/MPU/SoCs, ADCs/DACs, sensors, etc. - Familiar with PCBA manufacturing/assembly requirements and DFM/DFT rules. ● MCU Firmware programming (Advanced) - Languages: C, C++, Rust, ARM Assembly. - IDEs and tooling: Eclipse-based, VSCode, bare-metal toolchains, Make/CMake. - Firmware architectures: Bare-metal, RTOS, HAL/LL APIs. - RTOS: FreeRTOS, Zephyr (hands-on experience). - Ecosystems: STM32 (HAL/LL), Espressif (ESP-IDF), Nordic (nRF SDKs). - Version control: Git and SVN. - Familiarity with MISRA C/C++ standards - Architectures: ARM Cortex-M/R, Xtensa (ESP32). - Driver development: I2C, SPI, UART, ADC, PWM, external ASICs. - Protocols & stacks: BLE, LoRaWAN, HTTPS, MQTT. ● Embedded Linux development (Intermediate) - Linux for custom hardware platforms (MPUs). - Yocto Project: Linux distribution configuration and build. - Device tree and kernel driver development (sensors, ASICs, etc.).- Application development in C, C++, Python, Rust. - ARM Cortex-A architecture familiarity. ● FPGA & HDL Development (Intermediate) - FPGA/SoC development using Verilog, SystemVerilog, and VHDL. - Platforms: Xilinx Spartan-7, Zynq-7000; Intel (Altera) Cyclone, MAX series. - Custom IP design and hardware/software integration. - Familiarity with AXI/AMBA bus architectures. If you’re interested in working with me, I’m available via Freelancer and will always answer your questions or requests promptly. Thank you for your time and have a great day. 收起 -
雇用 Adeel2k14
I am a professional Electrical Engineer with extensive experience in solving complex electrical and electronics design challenges. I have designed, tested, and troubleshot a wide range of electronic circuits and production-grade PCBs using industry-standard tools such as Altium Designer, Eagle, and Proteus. I am...I am a professional Electrical Engineer with extensive experience in solving complex electrical and electronics design challenges. I have designed, tested, and troubleshot a wide range of electronic circuits and production-grade PCBs using industry-standard tools such as Altium Designer, Eagle, and Proteus. I am currently working at a government-sector research center, where I am responsible for the development, testing, validation, and troubleshooting of PCB designs. My role includes diagnosing hardware issues, implementing design updates, and ensuring reliable performance through rigorous testing and iteration. With strong hands-on expertise in embedded hardware development and PCB optimization, I bring a results-driven approach to problem solving and can effectively support complex hardware design and debugging requirements. 收起 -
雇用 krupnovdenis
dZENcode is a software development and delivery company focused on complex, business-critical systems and scalable digital products. Operating since 2015, we work with startups, growing companies, and investors who need engineering responsibility, clear scope, and predictable delivery. Our 90+ in-house...dZENcode is a software development and delivery company focused on complex, business-critical systems and scalable digital products. Operating since 2015, we work with startups, growing companies, and investors who need engineering responsibility, clear scope, and predictable delivery. Our 90+ in-house specialists cover the full cycle: architecture, design, backend, frontend, mobile, integrations, AI/ML automation, migrations, project rescue, scaling, and long-term SLA support. We work as an external IT department or dedicated delivery team, mainly through team outsourcing and outstaffing models. Our process is scope-driven: SoW, acceptance criteria, transparent billing, documentation, structured handover, and contract-based cooperation via a legal entity. We focus on commercial projects that need reliable execution, not one-time setup, hobby work, SEO/content-only tasks, or revenue-share models. dZENcode is ready to take ownership of delivery and support your product long-term. 收起 -
雇用 deane20
With over 10+ years of experience specializing in hardware design and firmware development, I have a solid foundation in electrical engineering and a passion for innovation. I offer full-stack embedded hardware design and development solutions utilizing embedded microcontrollers, microprocessors, and digital signal...With over 10+ years of experience specializing in hardware design and firmware development, I have a solid foundation in electrical engineering and a passion for innovation. I offer full-stack embedded hardware design and development solutions utilizing embedded microcontrollers, microprocessors, and digital signal processors. I’ve successfully created cutting-edge hardware solutions and embedded systems across various industries, including consumer electronics, IoT, medical devices, and automotive. PCB fabrication and assembly are handled through trusted partners based in the U.S. and China, ensuring reliability and efficiency. Key Skills: ✔️Hardware Design ✔️Firmware Development ✔️Prototyping & Testing Notable Projects: ✔️Embedded IoT Device for Environmental Monitoring Led the development of a low-power IoT device for real-time environmental monitoring, designing the sensor interface, power management system, and wireless communication protocols. Implemented energy-efficient firmware algorithms to extend battery life and enhance reliability. ✔️High-Speed Data Acquisition System for Aerospace Designed a high-speed data acquisition system for aerospace testing, creating custom PCBs with high-speed interfaces and integrating FPGA-based signal processing. Developed firmware for real-time data acquisition and processing, meeting stringent performance requirements. ✔️Medical Device Prototype for Remote Patient Monitoring Collaborated with a startup to develop a prototype for remote patient monitoring, designing the hardware platform for physiological signal acquisition and integrating wireless connectivity. Developed firmware for real-time signal processing and secure data communication, ensuring compliance with regulatory standards. Additional Expertise: ✔️PLC System Integration Control logic using ladder diagrams, structured text, and function block programming in environments such as Siemens TIA Portal, Allen-Bradley Studio 5000, and Mitsubishi GX Works. ✔️RF Circuit Design Proficient in designing high-power amplifiers, antennas, low-loss filters and mixers up to Ka-Band. ✔️Radar Signal Processing Expertise in radar system design and dynamic simulation using MATLAB. ✔️Battery Design & Systems Experience with Li Battery design, EV systems, solar hybrid power controllers, and more. 收起 -
雇用 antonk52
I am a versatile developer with extensive experience in building cutting-edge web, mobile, and game applications. My skill set spans multiple technologies including PHP, React.js, JavaScript, Python, Shopify, WordPress, iOS, Flutter, Kotlin, Rust, and Unity. What I Can Do: ✔ Web Development: Expert in PHP, MySQL,...I am a versatile developer with extensive experience in building cutting-edge web, mobile, and game applications. My skill set spans multiple technologies including PHP, React.js, JavaScript, Python, Shopify, WordPress, iOS, Flutter, Kotlin, Rust, and Unity. What I Can Do: ✔ Web Development: Expert in PHP, MySQL, HTML, JavaScript, and CMS platforms like WordPress, Shopify, and Drupal. ✔ Mobile Development: Proficient in developing high-performance iOS and Android apps with Flutter, Kotlin, and React Native. ✔ Game Development: Skilled in Unity and Game Development using C#. ✔ Blockchain & Smart Contracts: Specialized in developing Smart Contracts on Solana and Rust. ✔ AI Chatbots: I can create intelligent chatbots using advanced AI technologies. ✔ Automation: Automation solutions to streamline your business processes. Whether you’re looking to build a responsive website, a mobile app, or a blockchain application, I deliver high-quality, efficient, and scalable solutions. 收起 -
雇用 leonidye
I am an RF and electronics design engineer from Ukraine with strong experience in antenna design, RF PCB layout, and general electronic hardware development. I focus on practical, manufacturable designs with predictable performance. Core expertise: - RF PCB layout (impedance control, grounding, isolation, EMI...I am an RF and electronics design engineer from Ukraine with strong experience in antenna design, RF PCB layout, and general electronic hardware development. I focus on practical, manufacturable designs with predictable performance. Core expertise: - RF PCB layout (impedance control, grounding, isolation, EMI reduction) - High-speed and mixed-signal PCB design (impedance and length matching) - Schematic & PCB layout and BOM for production-ready hardware - Power supply and filtering design - Antenna design and tuning (GNSS, Wi-Fi, ISM bands...) Typical work: - Wi-Fi, BLE, LoRa, and custom RF hardware - Compact and embedded antennas - Multilayer PCBs optimized for performance and cost - Design review, layout correction, and RF/EMI troubleshooting Tools: - RF design and simulation tools (ADS, CST, and HFSS) - PCB design tools (Altium, KiCAD, OrCAD, PADS, and EasyEDA) - Others (NI Multisim, Proteus, Matlab...) Thanks for visiting my profile. 收起 -
雇用 CaliforniaVibe
THE CALIFORNIA STUDIO is a premier architecture and engineering team dedicated to shaping innovative, functional, and inspiring spaces. With a passion for design excellence, we specialize in architectural planning, structural detailing, and a full spectrum of engineering services, including electrical and civil...THE CALIFORNIA STUDIO is a premier architecture and engineering team dedicated to shaping innovative, functional, and inspiring spaces. With a passion for design excellence, we specialize in architectural planning, structural detailing, and a full spectrum of engineering services, including electrical and civil engineering. Our team of experts brings creativity and precision to every project, delivering high-quality 2D plans, detailed 3D models, and comprehensive engineering solutions tailored to meet each client's unique vision. Whether it's residential, commercial, or industrial, we ensure code compliance and design integrity at every stage. We proudly offer engineering drawings and structural safety across. At THE CALIFORNIA STUDIO, we don't just design buildings--we craft environments that elevate experiences. Let us bring your ideas to life with innovation, efficiency, and unmatched professionalism. 收起 -
雇用 tnunes3D
I've a background in Electrical and Electronics Engineering and a PhD specializing in medical instrumentation resilient to EMI. On the side, I'm a hobbist with a particular interest in 3D printing and 3D design. I also like photography and do small editions in photoshop.I've a background in Electrical and Electronics Engineering and a PhD specializing in medical instrumentation resilient to EMI. On the side, I'm a hobbist with a particular interest in 3D printing and 3D design. I also like photography and do small editions in photoshop. 收起
