展示 12 结果
高级威客
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雇用 metusa
• Embedded systems software with C/C++ and Assembly • Bare metal embedded systems programming • Embedded Linux Programming • Worked on STM32 (ARM Cortex M3/M4), Texas Instruments DSP’s (C5505) and Tiva boards, MSP430, PIC32 MCUs • Developed projects on Beaglebone, Arduino, Raspberry Pi • Worked with TI audio...• Embedded systems software with C/C++ and Assembly • Bare metal embedded systems programming • Embedded Linux Programming • Worked on STM32 (ARM Cortex M3/M4), Texas Instruments DSP’s (C5505) and Tiva boards, MSP430, PIC32 MCUs • Developed projects on Beaglebone, Arduino, Raspberry Pi • Worked with TI audio codecs, LoRa modules, NAND flash memory, GSM, GPS • Have experience with RTOS like FreeRTOS, uCOS-III • Have experience with middlewares such as I. FatFs file system II. LwIP TCP/IP stack III. ARM mbedTLS and OpenSSL IV. USB Device, Host and OTG peripherals • Worked with development tools such as System Workbench for STM32, TI Code Composer Studio, IAR, Keil, MPLAB X IDE, Arduino IDE, Eclipse CDT, Microsoft Visual Studio • Have experience with peripherals like UART, SPI, I2S, I2C, DMA , OneWire, USB, CAN, Ethernet • Have experience in EMV(credit/debit cards) specifications and ISO 7816 standards • Public Key Cryptography, X.509 and CVC certificate operations 收起 -
雇用 hardsoftfreelan
Electronic hardware design. Shematic, PCB layout, microcontrollers, MPU, firmware. 14 years of experience.Electronic hardware design. Shematic, PCB layout, microcontrollers, MPU, firmware. 14 years of experience. 收起 -
雇用 husam46
Architectural Engineer and Engineering Team Lead with a multidisciplinary U.S.-based team specializing in Structural, Architectural, Civil, and MEP engineering services for residential, commercial, and industrial projects. We provide permit-ready, code-compliant designs with licensed seals in 30+ states including CA,...Architectural Engineer and Engineering Team Lead with a multidisciplinary U.S.-based team specializing in Structural, Architectural, Civil, and MEP engineering services for residential, commercial, and industrial projects. We provide permit-ready, code-compliant designs with licensed seals in 30+ states including CA, TX, FL, NY, VA, WA, and more. Expertise includes structural analysis and design for wood, steel, and concrete buildings; foundation and framing plans; structural calculations; load analysis; renovations; additions; warehouses; retail buildings; schools; greenhouses; and high-rise structures using ETABS, SAP2000, and STAAD Pro. Our team also delivers architectural design, HVAC, plumbing, electrical, and civil engineering services including site plans, grading, drainage, utility layouts, 2D drafting, and 3D modeling with AutoCAD, Revit, SketchUp, Lumion, and V-Ray. Experienced with IRC, IBC, CBC, FBC, ASCE, IPC, and IFC codes. We focus on efficient coordination, fast communication, and successful permit approvals for projects across the U.S. 收起 -
雇用 kamleshk221
➡️ 10+ Years Experience | Flutter • Android • iOS • Kotlin • Node.js ➡️ All-time available at any time zone. With over a decade of experience in mobile and web development, I specialize in building fast, scalable, and user-friendly applications that solve real business problems. My journey includes 7+ years of...➡️ 10+ Years Experience | Flutter • Android • iOS • Kotlin • Node.js ➡️ All-time available at any time zone. With over a decade of experience in mobile and web development, I specialize in building fast, scalable, and user-friendly applications that solve real business problems. My journey includes 7+ years of expertise in native Android (Kotlin/Java) and Flutter, along with 5+ years in full-stack development using React and Node.js. I’ve collaborated with startups, enterprises, and agencies to deliver apps across domains like e-commerce, edtech, healthcare, food delivery, and on-demand services — always prioritizing clean architecture, reliable performance, and long-term maintainability Technical Expertise: Mobile Development: Flutter, Kotlin, Java, Swift, Android, iOS, Spring boot Web Development: Angular, Python, React.js, Node.js Backend & API: RESTful APIs, Express.js, Firebase, MongoDB, PostgreSQL Protocol: HTTP/HTTPS ,REST, WS, MQTT, TCP, SMTP, OAuth 2.0 Notable Projects: Android Work- •• eBaba Entertainment -- http://surl.li/pmwtvl •• Ichef (E-Commerce) -- http://surl.li/obcvso •• Momskart by moms of India (E-Commerce) -- http://surl.li/lkwssl •• InRide Customer -- http://surl.li/ksihqg •• Envoy User (Delivery) -- http://surl.li/iidpsa •• Horeca Store (E-Commerce) -- https://shorturl.at/mh0w6 •• M Learning App -- http://surl.li/jgekac •• Masked fish (Dating app) -- http://surl.li/tacndx •• Textile trade -- http://surl.li/frdcbz •• Servysh (E-commerce) -- http://surl.li/qxknaq •• Ducker Detective -- http://surl.li/smmwad •• BLU Radio -- http://surl.li/nsqhxi iOS Work- •• InRide -- https://apps.apple.com/in/app/inride-offer-your-fare/id6454345383 •• Storyboard Podcasts -- http://surl.li/vwgfke •• iChef Business -- http://surl.li/ffnsde •• News Nation -- http://surl.li/pznyjs •• SparksFly [Meet. Date. Love] -- http://surl.li/jedzxd •• FamConnect -- http://surl.li/rqjjec We’re a dedicated team of developers with over 10 years of experience in mobile and web development, committed to delivering high-quality solutions on time. You can explore my work through the following links: Mobile Application- https://shorturl.at/6JkCN Web Application- https://shorturl.at/0GTLm Let’s build something meaningful together I’d be glad to learn more. Best Regards, kamlesh kushwah 收起 -
雇用 natesd
I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from low-level real-time infrastructure all the way up to full-stack web and...I'm a Staff-level Software Engineer with 20+ years of experience building complex systems across startups and global companies like Cisco Systems and Qualcomm. I specialize in designing and delivering production-grade systems end-to-end - from low-level real-time infrastructure all the way up to full-stack web and mobile applications. Most developers focus on one layer. I bring deep systems expertise + full-stack execution, which means I can take ownership of your entire product. ⚡ What I Do 🔹 Real-Time & Performance-Critical Systems Low-latency applications, streaming, audio/video, and systems that must perform under pressure. 🔹 AI Integration (Production, Not Hype) RAG systems, speech processing, and integrating AI into real-world products. 🔹 Full-Stack & Mobile Development Modern web apps and cross-platform mobile apps when needed—built on solid backend architecture. 🔹 System Architecture (0 → Scale) I design systems that are maintainable, scalable, and ready for real users—not just prototypes. 🏆 Experience Highlights Technical Lead — Cisco Systems ✔ Led real-time audio and ML-powered systems used in Webex ✔ Delivered cross-platform production systems (desktop + mobile) ✔ Owned architecture from design to deployment Senior Software Engineer — BabbleLabs ✔ Built real-time AI speech systems from scratch ✔ Developed system-level integrations across OS environments ✔ Contributed to successful acquisition by Cisco Senior Software Engineer — Qualcomm ✔ Delivered carrier-grade real-time communication systems (VoLTE / video) ✔ Worked with global operators and production-scale infrastructure 🧩 Technical Breadth Systems & Backend: C/C++, Python, Go, Node.js, distributed systems, microservices Full Stack: React, modern frontend frameworks, REST APIs Mobile: Cross-platform + native integration experience AI / Data: LLMs, RAG, speech processing, real-time ML Platforms: Linux, macOS, Windows 🎯 What Makes Me Different Most freelancers: -Build features I: 💪Design systems that last 💪Solve complex engineering problems 💪Own projects end-to-end 📩 Let’s Talk If you need someone who can design, build, and scale your system the right way, send me a message - I'll help you define the best approach before we start. 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 hakanulusoy
I have 7 years experiance in my bussiness. I graduated from ITU electronic(bec). Problem solver one of my best tags. Some keywords that I am professional on: Raspberry Pi Python Embeded systems Microcontrollers,ARM, STM32, C8051. UART,I2C,I2S,SPI,RS232,RS485. PMBus, SMBus. More than 4 years I am working for a company...I have 7 years experiance in my bussiness. I graduated from ITU electronic(bec). Problem solver one of my best tags. Some keywords that I am professional on: Raspberry Pi Python Embeded systems Microcontrollers,ARM, STM32, C8051. UART,I2C,I2S,SPI,RS232,RS485. PMBus, SMBus. More than 4 years I am working for a company working on transmitters and broadcasting. I am team leader on R&D department. We have a break as company because of Covid-19. I am going to glad to work with someone who need professional help. 收起 -
雇用 jitendracf
With over 13 years of expertise in embedded systems design and development, I specialize in delivering cutting-edge hardware and firmware solutions across a range of industries. My core competencies lie in: **Key Expertise** • Hardware Design & Development: Specializing in multi-layer PCB design (up to six layers),...With over 13 years of expertise in embedded systems design and development, I specialize in delivering cutting-edge hardware and firmware solutions across a range of industries. My core competencies lie in: **Key Expertise** • Hardware Design & Development: Specializing in multi-layer PCB design (up to six layers), and leveraging industry-standard tools like Altium Designer, Cadsoft Eagle, and KiCad. • Firmware Development: Proficient in embedded C, C++, Python, and Shell scripting for microcontrollers and microprocessors, with a focus on optimizing performance for real-time systems and IoT applications. • Wireless Technologies Expert: Extensive experience in developing IoT products using WiFi (2.4GHz, 5GHz, 6GHz), BLE, Cellular (2G/3G/4G/LTE, NB-IoT), GPS/GNSS, ZigBee, LoRa, UWB, and more. • Protocols & Interfaces: Deep understanding of I2C, SPI, UART/USART, RS232, RS485, CAN, TCP/IP, J1772, with practical application in wireless communication and sensor integration. • IoT Solutions: Proven track record in delivering IoT-based solutions with seamless integration of wireless modules and sensors, ensuring reliability in real-world applications. • Cross-platform Development: Hands-on experience with various platforms including Raspberry Pi (zero/2/3/4), Beaglebone Black, STM32F, and ESP32, and operating systems like Windows, Linux, and RTOS variants (FreeRTOS, Zephyr, TI-SIMPLELINK). **Specialized in Wireless SoCs** Texas Instruments: CC2530, CC2640R2F, CC2650, and more. Nordic Semiconductor: nRF51822, nRF52840, nRF9160, nRF5340, among others. Espressif: ESP8266, ESP32-S2/S3/C6, with experience in ESP-IDF and Arduino-based development environments. **Advanced Sensor Integration** Proficiency in integrating a variety of sensors, from environmental (temperature, humidity, pressure) to motion (accelerometer, gyroscope), and health-related sensors (heart rate), with a deep understanding of their interface protocols and power optimization. **Evaluation & Development Boards** Experience with a range of development platforms including ESP32, nRF52, Arduino, STM32, Raspberry Pi, and Beaglebone, ensuring versatile project implementation from prototyping to deployment. My experience extends beyond just technical prowess—I bring a problem-solving mindset, a drive for innovation, and a commitment to delivering robust, scalable solutions for next-gen embedded systems. 收起 -
雇用 derduron
I am an End-to-End IoT and Hardware Engineer specializing in turning complex product concepts into fully functional, production-ready devices. My unique edge lies in cross-disciplinary expertise: I bridge the gap between physical electronics (multi-layer PCB design in Altium/KiCad), embedded software (STM32/ESP32...I am an End-to-End IoT and Hardware Engineer specializing in turning complex product concepts into fully functional, production-ready devices. My unique edge lies in cross-disciplinary expertise: I bridge the gap between physical electronics (multi-layer PCB design in Altium/KiCad), embedded software (STM32/ESP32 firmware), mechanical design (Fusion 360 enclosures), and modern cloud web interfaces (TypeScript/Node.js telemetry dashboards). With a solid background in industrial automation and equipment maintenance, I design hardware optimized for noise immunity, cost-efficiency, and seamless manufacturing scaling. 收起 -
雇用 jimsufficiency
I design and de-risk embedded control systems for hardware startups and product teams, taking ideas from early concept to working, production-ready prototypes. My work focuses on system architecture, hardware reliability, and firmware integration, helping teams avoid costly redesigns and integration failures common...I design and de-risk embedded control systems for hardware startups and product teams, taking ideas from early concept to working, production-ready prototypes. My work focuses on system architecture, hardware reliability, and firmware integration, helping teams avoid costly redesigns and integration failures common in early hardware development. I typically support clients with: • Embedded system architecture and feasibility analysis • Custom PCB design with a strong focus on power, safety, and manufacturability • Firmware development and bring-up for STM32, ESP32, and ARM-based systems • Hardware–firmware integration and prototype validation I have worked on products spanning industrial electronics, robotics, agriculture, and connected devices, often with founders or teams building hardware for the first time. I prefer projects where: • Requirements are clear or can be structured early • Technical decisions matter long-term • Quality and reliability are more important than quick fixes If you are building a hardware product and want it engineered correctly from the start, I’m happy to discuss how to reduce risk and move efficiently toward a working prototype. 收起
