Wireless Engineers para contratar
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Freelancers patrocinados
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Contratar 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. menos -
Contratar amirrmusavifr
Aprendizaje Automático (ML), Mathlab y Mathematica, Ingeniería eléctrica, Python, Ingeniería de telecomunicacionesI have master in Electrical Engineering, I'm expert with following skills: IMAGE PROCESSING (MATLAB & PYTHON) * Digital Image Processing * Image Classification * Image Segmentation * Machine learning * Neural Network * Deep Learning * Object Detection NATURAL LANGUAGE PROCESSING * Question Answering *...I have master in Electrical Engineering, I'm expert with following skills: IMAGE PROCESSING (MATLAB & PYTHON) * Digital Image Processing * Image Classification * Image Segmentation * Machine learning * Neural Network * Deep Learning * Object Detection NATURAL LANGUAGE PROCESSING * Question Answering * Sentiment Classification * Named Entity Recognition (NER) * Part of Speech (POS) tagging * Lemmatization REINFORCEMENT LEARNING * Deep Q-Network * Model-free and Model-based training DIGITAL SIGNAL PROCESSING (MATLAB & PYTHON) * Estimation / Detection * Digital Communication Systems * Mathematics * Kalman Filter * Tracking System menos -
Contratar tshibsamuel477
My name is Samuel, and I am a mechatronic engineer with a specialization in mechatronics, based in Tunisia, with over six years of experience. During this time, I have successfully delivered a wide range of projects, continually expanding my expertise and refining my skills. I am now offering my professional services...My name is Samuel, and I am a mechatronic engineer with a specialization in mechatronics, based in Tunisia, with over six years of experience. During this time, I have successfully delivered a wide range of projects, continually expanding my expertise and refining my skills. I am now offering my professional services in designing and prototyping electronic boards using Altium Designer. My PCB design expertise encompasses: Single and Multi-sheet Schematics Single/double-sided and Multi-layer PCB layouts Data and control interfaces: UART, USB, SPI, I2C, SDIO, PCIe, and more Power supply design, including SMPS & LDOs Digital video, audio, and multimedia interfaces: HDMI, MIPI DSI/CSI, I2S, TDM Reverse engineering for existing designs With a commitment to quality and precision, I am ready to bring your electronic board designs to life. menos -
Contratar umg536
Modular Solutions delivers advanced Engineering, AI/ML, Embedded Systems, and IoT solutions for startups, enterprises, researchers, and industrial clients worldwide. We transform complex ideas into production-ready systems — from AI platforms and automation tools to embedded hardware, enterprise software, industrial...Modular Solutions delivers advanced Engineering, AI/ML, Embedded Systems, and IoT solutions for startups, enterprises, researchers, and industrial clients worldwide. We transform complex ideas into production-ready systems — from AI platforms and automation tools to embedded hardware, enterprise software, industrial controls, simulations, and engineering designs. Our expertise combines Artificial Intelligence, Machine Learning, Computer Vision, Deep Learning, Data Science, Analytics, and Automation with strong software engineering capabilities in Python, C/C++, Java, C#, .NET, PHP, JavaScript, SQL, MATLAB, Simulink, and Linux-based systems. On the hardware side, we specialize in Embedded Systems, IoT Devices, FPGA/Verilog/VHDL, PCB Design, Raspberry Pi, Arduino, ARM development, RF systems, electronics, firmware, industrial automation, sensor integration, DSP, and hardware/software interfacing. We also provide Mechanical, Electrical, Civil, and Structural Engineering services including AutoCAD, Civil 3D, SolidWorks, CAD/CAM, Product Design, 3D Modelling, Simulation, Renewable Energy systems, and technical feasibility analysis. Our experience includes: • AI-powered analytics and automation platforms • Facial Recognition and OpenCV systems • Enterprise SaaS and backend platforms • Industrial automation and control systems • FPGA and embedded hardware development • MATLAB/Simulink modeling and simulation • IoT evaluation and sensor systems • CAD drafting and engineering design • Unity 3D and simulation applications • Data analytics and statistical analysis • Research, technical writing, and documentation We also support clients with Project Management, Business Analysis, Finance, Accounting, Bookkeeping, QuickBooks reconciliation, Reporting, Scientific Research, Research Writing, Technical Writing, and enterprise consulting. Our technical stack and domains include: AI & Machine Learning | Deep Learning | Neural Networks | Computer Vision | OpenCV | Data Science | Big Data | Statistical Analysis | SPSS | R Programming | Python | MATLAB | Simulink | Algorithm Development | Data Mining | Text Mining | C Programming | C++ | Java | C# | PHP | JavaScript | SQL | .NET | Software Architecture | Linux | Web Development | Electronics | Electrical Engineering | FPGA | Verilog/VHDL | Embedded Systems | IoT | Arduino | Raspberry Pi | ARM | PCB Design | RF Communications | DSP | CAD/CAM | AutoCAD | SolidWorks | Mechanical Engineering | Civil Engineering | Structural Engineering | Product Design | 3D Modelling | Unity 3D | Technical Writing | Research Writing | Project Management | Finance | QuickBooks | Business Analysis Clients choose Modular Solutions for strong communication, fast execution, technical depth, and the ability to solve complex engineering and software challenges under tight deadlines. We focus on delivering reliable, scalable, and production-ready solutions tailored to each client’s goals. menos -
Contratar winmaclin
⭐ Top 1% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted...⭐ Top 1% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted by Fortune companies like CGI, L&T, Infosys, Biocon, and TVSNext. We don't just build software, we build lasting partnerships. Our approach is simple: understand your vision, deliver beyond expectations, and stay with you every step of the way. ✎ Why Choose Us? ➬ 20+ Years of Industry Experience ➬ 350+ Talented IT Professionals ➬ 3000+ Successfully Delivered Projects ➬ 95% Client Retention Ratio ➬ 4.9 ⭐ Clutch Rating ➬ 100% Project Success Ratio ➬ Clutch Top 1000 Companies Global 2022 ➬ Best Outsourcing Company - SGCCI ✎ Our Services ➬ Custom Web & Mobile App Development ➬ Custom Enterprise Software Development ➬ AI/ML & Data Analytics Solutions ➬ QA & Software Testing (Automation, Security, Performance) ➬ DevOps, Cloud Migration & Managed Services ➬ Salesforce Consulting, Implementation & Support ➬ Staff Augmentation - Dedicated Teams or Individual Developers ➬ Support & Maintenance ✎ Tech Stack ➬ Frontend: ReactJS, AngularJS, VueJS, NextJS, NuxtJS ➬ Backend: Node.js, Java, PHP, Laravel, .NET, Python, Django, WordPress ➬ Mobile: Flutter, React Native, iOS (Swift), Android (Java/Kotlin) ➬ Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, CI/CD, Terraform ➬ Database: MySQL, MongoDB, PostgreSQL, Firebase, MS-SQL ➬ Other: Salesforce, MS Dynamics 365, Power Platform, Big Data, AI/ML, Automation ✎ Industries We Serve ● Fintech ● Healthcare ● Retail & Ecommerce ● Education ● Real Estate ● Media & Entertainment ●Transport & Logistics ✎ Our Strengths ➬ Agile Development Methodology ➬ Daily & Weekly Progress Reports ➬ Clear Communication & Collaboration ➬ 100% Plagiarism-Free & Secure Delivery ➬ Guaranteed Data Privacy & NDA Protection ➬ Flexible Engagement Models: ● Fixed Cost ● Time & Material (Hourly) ● Dedicated Team ● Hybrid Model (Fixed + Hourly) ✎ Our Promise "You will get the value of every penny you spend. We are committed to driving your business forward with reliable, quality solutions powered by technology and innovation." - Ashish Narola, CEO menos -
Contratar jamesr423
Experienced Electronics Engineer with extensive expertise in electronic product development, circuit design, schematic capture, PCB layout, embedded systems, RF engineering, and signal processing. Skilled in designing analog, digital, mixed-signal, and power electronic circuits for industrial, consumer, IoT,...Experienced Electronics Engineer with extensive expertise in electronic product development, circuit design, schematic capture, PCB layout, embedded systems, RF engineering, and signal processing. Skilled in designing analog, digital, mixed-signal, and power electronic circuits for industrial, consumer, IoT, telecommunications, medical, and automation applications. Proficient in the complete hardware development lifecycle, from concept and requirements definition through schematic design, simulation, PCB layout, prototyping, testing, debugging, and manufacturing support. Experienced in developing multilayer PCB designs with a strong focus on signal integrity, power integrity, EMC/EMI compliance, thermal management, reliability, and Design for Manufacturing (DFM). Highly skilled with industry-standard design tools including Altium Designer, KiCad, OrCAD, Eagle, and PADS for schematic capture, PCB layout, library creation, design review, and production documentation. Experienced in delivering manufacturing-ready outputs including Gerber files, BOMs, assembly drawings, pick-and-place files, and fabrication packages. Strong background in embedded systems development using microcontrollers, Arduino, ESP32, STM32, ARM Cortex-M devices, and FPGA-based platforms. Experienced in firmware development, hardware-software integration, communication protocols, sensor interfacing, motor control, and real-time embedded applications. Specialized in RF and wireless system design, including antenna development, RF matching networks, RF amplifiers, wireless communication modules, and technologies such as Wi-Fi, Bluetooth, Zigbee, LoRa, ISM-band radios, and cellular communications. Capable of designing reliable, high-performance electronic systems optimized for functionality, manufacturability, and cost efficiency. Core Competencies: • Electronic Circuit Design • Schematic Capture & Review • PCB Layout & High-Speed Design • Analog, Digital & Mixed-Signal Electronics • Power Supply & Power Electronics Design • RF Circuit & Antenna Design • Embedded Systems & Firmware Development • ESP32, STM32, ARM & FPGA Platforms • Signal Processing & Control Systems • EMC/EMI & Signal Integrity Analysis • DFM, DFA & Production Support • Hardware Debugging & Validation • IoT & Wireless Communication Systems • Prototype Development & Product Engineering menos -
Contratar martini002
Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software...Where technical precision meets real-world impact Hi, I’m Martin, a Senior Software Engineer with over 13 years of experience building robust backend systems and smart automation solutions. My core expertise lies in Python development, with a strong focus on Django, process automation, and hardware-software integration using tools like Raspberry Pi and Arduino. ✴️ Core Technical Skills - Python Development – Efficient and scalable backend systems - Django & Django REST Framework – Clean, secure, and well-documented APIs - Process Automation – From workflow optimization to RPA and web scraping - Hardware Integration – Raspberry Pi, Arduino, sensors, and custom electronics - Linux Server Administration – Secure deployments, performance tuning, and uptime reliability - Database Management – MySQL, PostgreSQL, SQLite - Basic Frontend Development – Clean and functional interfaces using HTML, CSS, and JavaScript ✴️ What I Build - Custom RESTful APIs for mobile or web apps - End-to-end IoT solutions and embedded systems - Automation tools that reduce manual work - Monitoring dashboards with real-time hardware data - Backend platforms with hardware communication layers ✴️ Why Work With Me? - Specialized Expertise – I solve technical problems with depth, not with shortcuts - End-to-End Ownership – From architecture to deployment and post-launch support - Clear Communication – Technical concepts translated into actionable plans - Long-Term Support – I don’t disappear after delivery; I ensure everything works and improves Let’s Work Together If you’re looking for a backend engineer who understands both software and hardware, and who can deliver efficient, future-ready solutions, I’d love to hear about your project. ✴️ Reach out to discuss how we can bring your ideas to life. menos -
Contratar lydialin2000
[A] 1 ) I have over 20 years of experience in PCB Layout / Hardware / RF / EMI / Firmware designs. We can complete various design and layout requirements and Android / iOS app development. # 8051 MCU / ARM Embedded system / Arduino / STM32 / IM6x / AVR / TI MSP430x / PIC / Ri-Pi # WIFI / BT / BLE / GPS ...[A] 1 ) I have over 20 years of experience in PCB Layout / Hardware / RF / EMI / Firmware designs. We can complete various design and layout requirements and Android / iOS app development. # 8051 MCU / ARM Embedded system / Arduino / STM32 / IM6x / AVR / TI MSP430x / PIC / Ri-Pi # WIFI / BT / BLE / GPS # LCD / DTV / MD / Web Camera # LED / Lighting # LCD Inverter / Touch sensor # NIC / LAN / KSZ9031RNX / LAN8720 # IOT / NRF52832 / ESP8266 / TI CC26xx / NRF52xx # RPI3 / CM3 / CM4 / UP CORE PLUS Carrier board # LTE / Quectel EC25 / BG77 / BG95 / BG96 # Battery / Solar Charger # BMS ( Battery Management System ) # IO-Link Expansion board ( MAXIN MAX14819ATM+ , TI, ST ) # Audio / Codec / CSR / HFP / HSP / AMP 2 ) I can use as below to design and layout. # Altium / Protel99SE # Eagle # PADS # KiCad # OrCad / Allegro # Proteus # DipTrace 3 ) I can communicate well in English, please contact us by e-mail or s-k-y-p-e me (saludpcb) to find out relevant details. 4 ) I also have to provide PCB layout design service ( super low price ) # For PCB layout: 2 ~ 4 Layers -> $0.4 ~ 0.6 USD per pad 6 ~ up Layers -> $0.8 ~ 0.8up USD per pad # For reprinting of schematic and component, quotation will vary by each case. # A minimal of $100 USD 2L / $200 USD 4L / $300 USD 6L will be charged for each case. What I can do are: # 1,2, 3, 4, 6, 8, .... layers ( PCB / FPCB ) # High Speed and High Density PCB layout # Differential Signal PCB layout # RF Signal PCB layout # 3D Models / FreeCad 5 ) PCB / PCBA manufacture ( EMS ) # Prototype assembly # Components procurement # High quality # Quick, 24hr lead time # Low cost [B] 1. I have 15-year translation experience and good at excel, word, numbers, keynote ... etc. 2. I can do English <-> Chinese ( traditional and simplified ) translation in Business, Electronic Technology, Website, Video, Disaster Reduction and App related fields. 3. Please contact me by e-mail or leaving messages to discuss any related issues. 4. Hope to have an opportunity to work with you. 5. I am currently Bloomberg’s freelancer for some translation work. menos -
Contratar shenglin0617
I am a China-based, production-ready embedded systems engineer who bridges the gap between firmware, PCB, and FPGA design — with deep manufacturing expertise to take your IoT product from prototype to mass production at scale. With 10+ years of hands-on experience and deep integration with JLCPCB, PCBWay, and SMT...I am a China-based, production-ready embedded systems engineer who bridges the gap between firmware, PCB, and FPGA design — with deep manufacturing expertise to take your IoT product from prototype to mass production at scale. With 10+ years of hands-on experience and deep integration with JLCPCB, PCBWay, and SMT assembly lines, I don't just design prototypes. I design for real manufacturing. ⚡ Core Strengths Embedded & IoT – STM32, ESP32, nRF52, FreeRTOS, MQTT, BLE, LoRaWAN Firmware – C/C++/Rust, bare-metal, RTOS, OTA, ultra low-power PCB for Manufacturing – JLCPCB, PCBWay, upto 24-layers, DFM rules, panelization, component sourcing FPGA – Verilog/VHDL, Xilinx/Intel, custom co-processing 🏭 Production-First Mindset ✅ JLCPPCB/PCBWay ready – Gerbers, BOM, CPL files, pick-and-place optimization ✅ Component sourcing – LCSC, Taobao, direct factory channels (cost down 30–50%) ✅ Assembly-line friendly – Test points, fiducials, thermal relief, footprint validation ✅ Firmware for mass production – Calibration, serialization, DFU, factory test modes 🇨🇳 Based in China. Built for scale. No translation delays. No component shortages panic. No "will this even assemble?" I speak manufacturer language — and I get it done. 🚀 Let’s go from prototype to production — fast. Need a JLCPPCB-ready design, a factory-testable firmware, or a full IoT product shipped? Message me. Let’s manufacture. menos -
Contratar josephg137
Seeking an expert to transform your idea into a market-ready product? Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes. I help startups, entrepreneurs, and...Seeking an expert to transform your idea into a market-ready product? Clients hire me for turnkey hardware and firmware solutions. Beyond PCB design, I handle sourcing, PCBA, and rigorous testing. I don't just send files; I build, debug, and deliver high-quality proven prototypes. I help startups, entrepreneurs, and engineering teams take products from concept → prototype → production. I support the full process, including product research, circuit design, schematic capture, PCB design, firmware development, prototype manufacturing, assembly, testing, debugging, validation, and production handoff. ---- Services I offer ---- 🔹 Complete product development — idea to prototype to manufacturing 🔹 PCB design — professional, compact, production-ready layouts 🔹 PCB review and verification — schematic review, layout review, design improvements 🔹 Circuit design and simulation 🔹 Firmware development — microcontrollers, processors, and Linux-based systems 🔹 Hardware bring-up, debugging, testing, and validation 🔹 Fixing boards that do not work properly 🔹 Prototype assembly and small-batch manufacturing 🔹 3D CAD support / enclosure coordination ---- PCB design expertise ---- I design PCBs across a wide range of domains, including: ▪ High-speed PCB design ▪ High-density / compact PCB design ▪ RF PCB design ▪ Analog PCB design ▪ Power electronics PCB design ▪ IoT hardware design ▪ Custom-shape and space-constrained PCB layout ▪ Multi-board systems and interconnect design I focus on clean layout, manufacturability, reliability, and real-world performance. ---- Firmware and embedded systems ---- I provide professional firmware development as a standalone service or as part of a full product build. Platforms and families I work with include: ▪ STM32, ESP32 / ESP-IDF, Arduino ▪ TI C2000 / Code Composer Studio ▪ PIC / Atmel / SAMD ▪ FPGA / SoC systems ▪ Linux-based embedded systems ▪ Single-board computers, microprocessors, and controllers Languages: ▪ C / C++ ▪ MicroPython ▪ JavaScript / embedded scripting ▪ Assembly when needed ---- Tools and software ---- PCB Design: ▪ Altium Designer ▪ KiCad ▪ EasyEDA Embedded / Firmware: ▪ STM32CubeIDE ▪ ESP-IDF ▪ Arduino IDE ▪ Code Composer Studio Simulation / Engineering Tools: ▪ LTspice ▪ Proteus ▪ HFSS ▪ Multisim ▪ LabVIEW GUI / Display Frameworks: ▪ LVGL ▪ TouchGFX ---- Interfaces, protocols, and technologies ---- Interfaces: ▪ SPI ▪ I2C ▪ UART ▪ CAN ▪ I2S ▪ USB ▪ Ethernet ▪ MIPI-CSI / MIPI-DSI ▪ LVDS ▪ FMC ▪ Memory interfaces Wireless / Connectivity: ▪ WiFi ▪ BLE ▪ LoRa ▪ GPS / GNSS ▪ LTE / GSM ▪ NFC ▪ UWB Protocols: ▪ MQTT ▪ HTTP ▪ FTP ▪ TCP/IP ▪ UDP ▪ SSL/TLS Operating Systems: ▪ FreeRTOS ▪ TI-RTOS ▪ Embedded Linux Let’s talk If you need help with PCB design, embedded systems, firmware development, RF design, power electronics, debugging, prototype testing, or taking a product to production, I’d be glad to discuss your project. menos
