Wireless Radio Frequency Engineers For Hire
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Sponsored Freelancers
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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 less
Hire macroenergy
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Hello! I'm a dedicated freelancer with over 13 years of experience, including nearly a decade on Freelancer.com. I hold a BSc in Computer Science and an MBA. Since 2014, I’ve been a senior newspaper editor while also specializing in research, academic writing, creative writing, editing, and proofreading. I prepare...Hello! I'm a dedicated freelancer with over 13 years of experience, including nearly a decade on Freelancer.com. I hold a BSc in Computer Science and an MBA. Since 2014, I’ve been a senior newspaper editor while also specializing in research, academic writing, creative writing, editing, and proofreading. I prepare research papers, theses, dissertations, and journal articles that adhere to the highest writing standards. In addition to research and writing, I provide comprehensive editing and proofreading services to ensure clarity, structure, and accuracy. As an accredited Wikipedia editor, I bring expertise in page creation, editing, and maintenance while complying with Wikipedia guidelines. My technical background further supports my ability to handle complex projects, offering precise and well-researched deliverables. Key Skills: • Research & Writing: Expertise in academic writing, including theses, dissertations, and journal articles. • Editing & Proofreading: Specialized in academic, technical, and creative content. • Creative Writing: Engaging content development across genres. • Training: Guiding others in research, writing, and editorial practices. • Wikipedia Editing: Accredited editor proficient in creating and updating high-quality entries. Experience: I’ve worked on a wide array of projects, including: • Academic Writing: Created theses, dissertations, and journal articles, maintaining academic rigor. • Editing & Proofreading: Edited academic, technical, and creative content focusing on clarity and accuracy. • Creative Writing: Developed articles and features for various industries. • Wikipedia Contributions: Edited and created Wikipedia articles, adhering to editorial standards and citation rules. Services Offered: • Research & Writing: Theses, dissertations, journal articles, and research papers. • Editing & Proofreading: Academic, technical, and business documents. • Creative Writing: Articles and narrative content. • Training: Writing, editing, and research skills development. • Wikipedia Editing: Article creation, updates, and source verification. Why Choose Me? • Expertise: My background ensures depth and accuracy in academic, technical, and creative projects. • Quality Assurance: I deliver polished work with attention to detail. • Timely Delivery: I respect deadlines and work efficiently. • Collaborative: I maintain open communication to meet client expectations. How I Work: I collaborate with clients to fully understand their needs, provide regular updates, and offer revisions to ensure the final product meets expectations. less
Hire alfmwangi
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I am a results-driven Electrical & Electronics Engineer with extensive experience delivering reliable, standards-compliant, and cost-effective engineering solutions for industrial, commercial, and product-development projects. I specialize in electrical system design, electronic circuit development, embedded systems,...I am a results-driven Electrical & Electronics Engineer with extensive experience delivering reliable, standards-compliant, and cost-effective engineering solutions for industrial, commercial, and product-development projects. I specialize in electrical system design, electronic circuit development, embedded systems, and automation, supporting clients from concept and simulation to implementation, testing, and documentation. My work emphasizes safety, efficiency, and long-term reliability, aligned with IEC, IEEE, NEC, and ISO standards. I have successfully worked with manufacturers, EPC contractors, startups, and R&D teams, providing clear communication, fast turnaround, and engineering-grade deliverables suitable for production and certification. Whether you need schematics, PCB design, power analysis, control systems, or troubleshooting, I bring practical engineering insight backed by real-world industry experience. 🔴 Industries Served: - Industrial Automation & Manufacturing - Power Generation & Distribution - Renewable Energy (Solar, Wind, Energy Storage) - Consumer Electronics & IoT - Automotive & EV Systems - Oil & Gas / Heavy Industry - Building Services & Smart Infrastructure - Robotics & Embedded Systems - Medical & Laboratory Equipment - Aerospace & Defense (non-classified projects) 🔴 Core Skills & Expertise Electrical Engineering: - Power System Design & Load Calculations - Low & Medium Voltage Systems - Electrical Schematics & Wiring Diagrams - Protection, Grounding & Earthing Systems - Motor Control (VFDs, Star-Delta, Soft Starters) - Panel Design & BOM Preparation - Electrical Safety & Compliance Electronics Engineering: - Analog & Digital Circuit Design - PCB Design (Single-layer to Multi-layer) - Power Electronics (SMPS, Inverters, Converters) - Signal Conditioning & Noise Reduction - Component Selection & Cost Optimization - Prototyping & Testing Embedded & Control Systems: - Microcontrollers (ARM, PIC, AVR, ESP32) - Embedded C / C++ Firmware Development - Sensors, Actuators & Communication Protocols - PLC Programming & Industrial Control - HMI & SCADA Integration - Automation & Control Logic Design 🔴Software & Engineering Tools Electrical & Automation - AutoCAD Electrical - EPLAN Electric P8 - ETAP - DIgSILENT PowerFactory - PLC Software (Siemens TIA Portal, Allen-Bradley Studio 5000) Electronics & PCB - Altium Designer - KiCad - Eagle - Proteus - OrCAD - PSpice / LTspice Embedded & Development: - Keil µVision - MPLAB X - Arduino IDE - PlatformIO - STM32CubeIDE Simulation & Analysis: - MATLAB / Simulink - Multisim - ANSYS (Electrical Modules) Why Clients Choose Me: - Engineering-grade documentation & drawings - Strong understanding of international standards - Clear communication & fast response - Practical, production-ready solutions - Long-term support and revisions included less
Hire masatoy3
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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. less
Hire leonidye
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🔧 Electrical & Electronics Engineer | Embedded Systems | Power & Control | IoT | PLC | RF & Antenna I help companies/individuals design, develop, and deploy robust electrical and embedded solutions—from PCB design and firmware development to power systems, IoT integration, and compliance-ready documentation. With 8+...🔧 Electrical & Electronics Engineer | Embedded Systems | Power & Control | IoT | PLC | RF & Antenna I help companies/individuals design, develop, and deploy robust electrical and embedded solutions—from PCB design and firmware development to power systems, IoT integration, and compliance-ready documentation. With 8+ years of experience in electronics engineering and embedded systems, I bring deep technical expertise and a hands-on approach to every project. ✅ Core Services PCB Design & Circuit Development Schematic capture, multi-layer PCB layout, signal integrity, and manufacturing-ready Gerber files. Tools: Altium, KiCad, Eagle, EasyEDA. Embedded Systems & Firmware Custom firmware for STM32, ESP32, Arduino, and ARM Cortex-based boards. RTOS, interrupt handling, I2C/SPI/UART/ADC, BLE & Wi-Fi protocols. Power Electronics & Battery Management DC-DC converters, BMS (Battery Management Systems), inverter designs, and charger integration for Li-ion, LFP, and solar-powered systems. IoT & Wireless Solutions Sensor-based systems with real-time wireless data transmission via LoRa, BLE, Wi-Fi, and GSM. Cloud integrations with MQTT, Firebase, and REST APIs. RF circuit design for BLE, LoRa, Wi-Fi, GSM, ISM band devices Custom antennas (patch, dipole, monopole, fractal) Matching networks, impedance tuning, VNA testing, EMI/EMC compliance Automation & Control Systems Custom control panels, PLC alternatives, smart switching circuits, motor drivers, and analog/digital feedback control loops. Simulation & Analysis Circuit simulation (LTspice, PSpice), power analysis, EMI/EMC considerations, and thermal management. 🧰 Tech Toolbox Design Tools: Altium Designer, KiCad, Eagle, OrCAD, EasyEDA Simulation & Modeling: LTspice, PSpice, MATLAB/Simulink Microcontrollers: STM32, ESP32, AVR, TI MSP430, Arduino Communication Protocols: BLE, Wi-Fi, LoRa, MQTT, Modbus, RS232, I2C, SPI, UART, UDP Programming Languages: C, C++, Embedded C, MicroPython Testing & Measurement: Oscilloscope, Logic Analyzer, Multimeter, Signal Generator Standards & Compliance: DFM, EMI/EMC Best Practices, ISO/IEC Specifications I will be happy to help translate your ideas into reality. less
Hire oleksandrt68
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Hello, I am Joaquin, a Professional Electronics and Electrical Engineer with strong hands-on experience in PCB design, embedded systems, IoT, and firmware development. I am specialized in RF & antenna design, wireless communication systems, and power electronics, including DC-DC converters and power management...Hello, I am Joaquin, a Professional Electronics and Electrical Engineer with strong hands-on experience in PCB design, embedded systems, IoT, and firmware development. I am specialized in RF & antenna design, wireless communication systems, and power electronics, including DC-DC converters and power management circuits. I also have experience in mechanical design and CAD modeling, including enclosures, thermal management, and integration of electronic systems into mechanical structures. I have a proven ability to take products from concept and schematic through PCB layout, firmware integration, prototyping, testing, mechanical integration, and production support. I am experienced in working with multidisciplinary teams and delivering reliable, manufacturable designs for commercial and industrial applications. less
Hire joaquinc48
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Antenna Design, Bluetooth Low Energy (BLE), Circuit Design, Control Engineering, Electrical EngineeringI have extensive experience delivering end-to-end engineering solutions across IoT, embedded systems, firmware, and applied electronics. I design, architect, and deliver production-ready systems spanning hardware, firmware, control software, cloud infrastructure, web dashboards, and mobile applications. My...I have extensive experience delivering end-to-end engineering solutions across IoT, embedded systems, firmware, and applied electronics. I design, architect, and deliver production-ready systems spanning hardware, firmware, control software, cloud infrastructure, web dashboards, and mobile applications. My engineering services include firmware and embedded software development, embedded Linux systems, power electronics and control engineering, RF and antenna-aware device integration, PCB design and review, PLC-based industrial automation, and drone and robotics systems. I routinely handle hardware bring-up, driver development, communication protocols, and system-level integration, ensuring performance, reliability, and regulatory awareness from early design through deployment. I work through detailed technical planning, clearly defined architectures, and structured execution. My approach emphasizes engineering accuracy, traceable requirements, test coverage, and maintainable design. I deliver clean, well-tested code, comprehensive documentation, and clear build, deployment, and validation procedures. Clients receive regular technical updates, concise demonstrations, and thorough handover materials to support long-term operation and scaling. less
Hire rocios46
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I am a dedicated Electronic Hardware and Firmware Engineer with over 15 years of experience in electronic engineering. My expertise encompasses designing and developing complex PCB layouts, embedded systems, and IoT solutions tailored to client needs. Throughout my career, I've led projects from concept to production,...I am a dedicated Electronic Hardware and Firmware Engineer with over 15 years of experience in electronic engineering. My expertise encompasses designing and developing complex PCB layouts, embedded systems, and IoT solutions tailored to client needs. Throughout my career, I've led projects from concept to production, ensuring compliance with industry standards and delivering high-quality, reliable products. My approach combines technical proficiency with clear communication, ensuring that clients are informed and involved at every stage. Technical Skills: -PCB Design: Altium Designer, KiCAD, Eagle -Embedded Systems: ARM Cortex, STM32, AVR, ESP32 -Programming Languages: C/C++, Python -Communication Protocols: I2C, SPI, UART, CAN, Ethernet -IoT Platforms: AWS IoT, Azure IoT Hub, MQTT -Simulation Tools: LTspice, MATLAB/Simulink Industries Served: -Consumer Electronics -Automotive -Medical Devices -Industrial Automation -Aerospace I am committed to delivering solutions that meet and exceed client expectations. Let's collaborate to bring your electronic projects to life with precision and efficiency. less
Hire tetianam8
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Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI...Need to turn your idea into a working AI product quickly? I help startups and companies go from concept to MVP - fast - and then scale into full, revenue-generating systems. Whether it’s a web-based AI app or an embedded AI device, I build intelligent systems that learn, adapt, and perform. 🌟 What I Build ✅ AI Software ✔ AI Web/Mobile App Development, full SaaS development(fast MVP, scale to real-product) ✔ AI Sales & Marketing Agents - automate customer engagement and follow-up ✔ AI Customer Service Bots - 24/7 chat, voice, and email automation ✔ Voice AI Assistants - for calls, appointments, and orders ✔ CRM & Funnel Integrations - HubSpot, GoHighLevel, Salesforce, Zoho ✔ Custom ML Models - trained for prediction, NLP, and automation tasks ✅ Embedded AI & Electronics ✔ Edge AI Systems – ML models running directly on devices (ESP32, Jetson, Raspberry Pi) ✔ IoT Device Prototypes – connected sensors, controllers, and data pipelines ✔ Embedded Vision & Audio AI – on-device image and voice recognition ✔ Hardware + Cloud Integration – send real-time sensor data to AI dashboards ✔ Rapid Hardware MVPs – prototype boards, firmware, and control apps 🌟 Tech & AI Stack ✔ AI/ML: OpenAI GPT, Claude, Llama, Hugging Face, PyTorch, TensorFlow, scikit-learn ✔ Automation: LangChain, Make.com, Zapier, n8n ✔ Embedded: Arduino, ESP-IDF, Raspberry Pi, Jetson, MicroPython, Edge TPU ✔ Cloud: AWS, GCP, Azure – scalable & secure deployment ✔ DevOps: Docker, Kubernetes, GitHub Actions for CI/CD ✔ Languages: Python, TypeScript, C/C++, Node.js, C# 🌟 Why Work With Me ✔ I build complete systems - from AI logic to working hardware ✔ Fast prototyping for startups - MVPs that can grow into real products ✔ End-to-end delivery - hardware, software, and cloud working together ✔ Startup speed with enterprise-level reliability Let’s turn your idea into a smart AI-powered product - from chip to cloud. Build fast. Launch faster. Scale confidently. less
Hire DngPhgNam
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Hi, I’m Stephen 👋 An experienced IoT engineer who turns complex ideas into reliable, real-world systems. I help businesses design, build, and scale Internet of Things solutions by combining deep hardware knowledge with production-ready software engineering. With 28 years in the telecommunications industry, I’ve...Hi, I’m Stephen 👋 An experienced IoT engineer who turns complex ideas into reliable, real-world systems. I help businesses design, build, and scale Internet of Things solutions by combining deep hardware knowledge with production-ready software engineering. With 28 years in the telecommunications industry, I’ve spent my career solving difficult integration, automation, and connectivity problems — the kind that don’t come with ready-made answers. My work has been recognized for innovation, and today I apply that experience to modern IoT, edge, and cloud-connected systems. Whether you’re building a prototype, stabilizing firmware, or scaling a deployed product, my focus is always on solutions that work outside the lab. 🔌 Connectivity & IoT Protocols 📡 LoRa and LoRaWAN solutions (LoRa and TTN certified) 📶 Cellular IoT: LTE-M, NB-IoT, LTE, 4G, 3G, 2G, GSM, GPRS 🔁 Protocols: MQTT, CoAP, REST, XMPP, Kafka, Google Cloud Messaging 🧠 Embedded & Firmware Development 🔧 Microcontrollers: ESP32, Arduino, STM32, RP2040 (Raspberry Pi Pico), Nordic RF, ATMEL, Microchip ⚙️ RTOS and OS: FreeRTOS, Zephyr, Embedded Linux 🧩 Firmware development in C/C++ using Arduino IDE or PlatformIO 🪛 Low-level device drivers and Linux kernel development 🤖 Automation & Edge Computing 🔗 Node-RED, Home Assistant, openHAB, IFTTT, Google Home 📦 Edge computing with Docker and balenaOS 🛠️ Infrastructure automation using Ansible, Terraform, or custom tooling ☁️ Cloud, APIs & Backend Systems 🧩 Full-stack development with Python, PHP (Laravel), and Nuxt 🔐 API design and development across 13+ programming languages 🌐 API gateways: Apigee (certified), Mulesoft, Kong ⚡ Serverless and microservices using AWS Lambda and Google Cloud Functions 📊 Data, Monitoring & Visualization 📈 Grafana, Prometheus, Datadog 🗂️ IoT platforms including ThingsBoard and DataCake 🧩 Hardware Design 📐 Schematic and PCB design using KiCad, Eagle, Altium, and OrCAD 🔍 Hardware bring-up, debugging, and power optimization 🧠 How I Work I take a system-level approach to every project, considering power, connectivity, firmware, cloud infrastructure, and long-term reliability from day one. My experience comes from real deployments, late-night debugging sessions, and production systems that had to work — not just demos. I’m instinctively drawn to interesting and unconventional challenges, especially where out-of-the-box thinking makes the difference. 🚀 Let’s Work Together If you have a tough IoT problem or a project that needs an experienced hand, I’m happy to review your requirements, suggest an approach, or help rescue a project that’s gone off the rails. less
Hire InternetOfThings
